Ingo Molnar | 0a02ad9 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1 | #include "builtin.h" |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 2 | #include "perf.h" |
Ingo Molnar | 0a02ad9 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 3 | |
| 4 | #include "util/util.h" |
Arnaldo Carvalho de Melo | ee29be6 | 2011-11-28 17:57:40 -0200 | [diff] [blame] | 5 | #include "util/evlist.h" |
Ingo Molnar | 0a02ad9 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 6 | #include "util/cache.h" |
Arnaldo Carvalho de Melo | e3f4260 | 2011-11-16 17:02:54 -0200 | [diff] [blame] | 7 | #include "util/evsel.h" |
Ingo Molnar | 0a02ad9 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 8 | #include "util/symbol.h" |
| 9 | #include "util/thread.h" |
| 10 | #include "util/header.h" |
Arnaldo Carvalho de Melo | 94c744b | 2009-12-11 21:24:02 -0200 | [diff] [blame] | 11 | #include "util/session.h" |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 12 | #include "util/tool.h" |
Ingo Molnar | 0a02ad9 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 13 | |
| 14 | #include "util/parse-options.h" |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 15 | #include "util/trace-event.h" |
Ingo Molnar | 0a02ad9 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 16 | |
Ingo Molnar | 0a02ad9 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 17 | #include "util/debug.h" |
| 18 | |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 19 | #include <sys/prctl.h> |
Markus Trippelsdorf | 7b78f13 | 2012-04-04 10:45:27 +0200 | [diff] [blame] | 20 | #include <sys/resource.h> |
Ingo Molnar | 0a02ad9 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 21 | |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 22 | #include <semaphore.h> |
| 23 | #include <pthread.h> |
| 24 | #include <math.h> |
Frederic Weisbecker | 419ab0d | 2009-09-12 03:59:01 +0200 | [diff] [blame] | 25 | |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 26 | #define PR_SET_NAME 15 /* Set process name */ |
| 27 | #define MAX_CPUS 4096 |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 28 | #define COMM_LEN 20 |
| 29 | #define SYM_LEN 129 |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 30 | #define MAX_PID 65536 |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 31 | |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 32 | struct sched_atom; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 33 | |
| 34 | struct task_desc { |
| 35 | unsigned long nr; |
| 36 | unsigned long pid; |
| 37 | char comm[COMM_LEN]; |
| 38 | |
| 39 | unsigned long nr_events; |
| 40 | unsigned long curr_event; |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 41 | struct sched_atom **atoms; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 42 | |
| 43 | pthread_t thread; |
| 44 | sem_t sleep_sem; |
| 45 | |
| 46 | sem_t ready_for_work; |
| 47 | sem_t work_done_sem; |
| 48 | |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 49 | u64 cpu_usage; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 50 | }; |
| 51 | |
| 52 | enum sched_event_type { |
| 53 | SCHED_EVENT_RUN, |
| 54 | SCHED_EVENT_SLEEP, |
| 55 | SCHED_EVENT_WAKEUP, |
Mike Galbraith | 55ffb7a | 2009-10-10 14:46:04 +0200 | [diff] [blame] | 56 | SCHED_EVENT_MIGRATION, |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 57 | }; |
| 58 | |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 59 | struct sched_atom { |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 60 | enum sched_event_type type; |
Arnaldo Carvalho de Melo | eed05fe | 2010-04-05 12:53:45 -0300 | [diff] [blame] | 61 | int specific_wait; |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 62 | u64 timestamp; |
| 63 | u64 duration; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 64 | unsigned long nr; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 65 | sem_t *wait_sem; |
| 66 | struct task_desc *wakee; |
| 67 | }; |
| 68 | |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 69 | #define TASK_STATE_TO_CHAR_STR "RSDTtZX" |
| 70 | |
| 71 | enum thread_state { |
| 72 | THREAD_SLEEPING = 0, |
| 73 | THREAD_WAIT_CPU, |
| 74 | THREAD_SCHED_IN, |
| 75 | THREAD_IGNORE |
| 76 | }; |
| 77 | |
| 78 | struct work_atom { |
| 79 | struct list_head list; |
| 80 | enum thread_state state; |
Frederic Weisbecker | aa1ab9d | 2009-09-14 03:01:12 +0200 | [diff] [blame] | 81 | u64 sched_out_time; |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 82 | u64 wake_up_time; |
| 83 | u64 sched_in_time; |
| 84 | u64 runtime; |
| 85 | }; |
| 86 | |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 87 | struct work_atoms { |
| 88 | struct list_head work_list; |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 89 | struct thread *thread; |
| 90 | struct rb_node node; |
| 91 | u64 max_lat; |
Frederic Weisbecker | 3786310a | 2009-12-09 21:40:08 +0100 | [diff] [blame] | 92 | u64 max_lat_at; |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 93 | u64 total_lat; |
| 94 | u64 nb_atoms; |
| 95 | u64 total_runtime; |
| 96 | }; |
| 97 | |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 98 | typedef int (*sort_fn_t)(struct work_atoms *, struct work_atoms *); |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 99 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 100 | struct trace_switch_event { |
| 101 | u32 size; |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 102 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 103 | u16 common_type; |
| 104 | u8 common_flags; |
| 105 | u8 common_preempt_count; |
| 106 | u32 common_pid; |
| 107 | u32 common_tgid; |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 108 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 109 | char prev_comm[16]; |
| 110 | u32 prev_pid; |
| 111 | u32 prev_prio; |
| 112 | u64 prev_state; |
| 113 | char next_comm[16]; |
| 114 | u32 next_pid; |
| 115 | u32 next_prio; |
| 116 | }; |
| 117 | |
| 118 | struct trace_runtime_event { |
| 119 | u32 size; |
| 120 | |
| 121 | u16 common_type; |
| 122 | u8 common_flags; |
| 123 | u8 common_preempt_count; |
| 124 | u32 common_pid; |
| 125 | u32 common_tgid; |
| 126 | |
| 127 | char comm[16]; |
| 128 | u32 pid; |
| 129 | u64 runtime; |
| 130 | u64 vruntime; |
| 131 | }; |
| 132 | |
| 133 | struct trace_wakeup_event { |
| 134 | u32 size; |
| 135 | |
| 136 | u16 common_type; |
| 137 | u8 common_flags; |
| 138 | u8 common_preempt_count; |
| 139 | u32 common_pid; |
| 140 | u32 common_tgid; |
| 141 | |
| 142 | char comm[16]; |
| 143 | u32 pid; |
| 144 | |
| 145 | u32 prio; |
| 146 | u32 success; |
| 147 | u32 cpu; |
| 148 | }; |
| 149 | |
| 150 | struct trace_fork_event { |
| 151 | u32 size; |
| 152 | |
| 153 | u16 common_type; |
| 154 | u8 common_flags; |
| 155 | u8 common_preempt_count; |
| 156 | u32 common_pid; |
| 157 | u32 common_tgid; |
| 158 | |
| 159 | char parent_comm[16]; |
| 160 | u32 parent_pid; |
| 161 | char child_comm[16]; |
| 162 | u32 child_pid; |
| 163 | }; |
| 164 | |
| 165 | struct trace_migrate_task_event { |
| 166 | u32 size; |
| 167 | |
| 168 | u16 common_type; |
| 169 | u8 common_flags; |
| 170 | u8 common_preempt_count; |
| 171 | u32 common_pid; |
| 172 | u32 common_tgid; |
| 173 | |
| 174 | char comm[16]; |
| 175 | u32 pid; |
| 176 | |
| 177 | u32 prio; |
| 178 | u32 cpu; |
| 179 | }; |
| 180 | |
| 181 | struct perf_sched; |
| 182 | |
| 183 | struct trace_sched_handler { |
| 184 | int (*switch_event)(struct perf_sched *sched, |
| 185 | struct trace_switch_event *event, |
| 186 | struct machine *machine, |
| 187 | struct event_format *tp_format, |
| 188 | struct perf_sample *sample); |
| 189 | |
| 190 | int (*runtime_event)(struct perf_sched *sched, |
| 191 | struct trace_runtime_event *event, |
| 192 | struct machine *machine, |
| 193 | struct perf_sample *sample); |
| 194 | |
| 195 | int (*wakeup_event)(struct perf_sched *sched, |
| 196 | struct trace_wakeup_event *event, |
| 197 | struct machine *machine, |
| 198 | struct event_format *tp_format, |
| 199 | struct perf_sample *sample); |
| 200 | |
| 201 | int (*fork_event)(struct perf_sched *sched, |
| 202 | struct trace_fork_event *event, |
| 203 | struct event_format *tp_format); |
| 204 | |
| 205 | int (*migrate_task_event)(struct perf_sched *sched, |
| 206 | struct trace_migrate_task_event *event, |
| 207 | struct machine *machine, |
| 208 | struct perf_sample *sample); |
| 209 | }; |
| 210 | |
| 211 | struct perf_sched { |
| 212 | struct perf_tool tool; |
| 213 | const char *input_name; |
| 214 | const char *sort_order; |
| 215 | unsigned long nr_tasks; |
| 216 | struct task_desc *pid_to_task[MAX_PID]; |
| 217 | struct task_desc **tasks; |
| 218 | const struct trace_sched_handler *tp_handler; |
| 219 | pthread_mutex_t start_work_mutex; |
| 220 | pthread_mutex_t work_done_wait_mutex; |
| 221 | int profile_cpu; |
| 222 | /* |
| 223 | * Track the current task - that way we can know whether there's any |
| 224 | * weird events, such as a task being switched away that is not current. |
| 225 | */ |
| 226 | int max_cpu; |
| 227 | u32 curr_pid[MAX_CPUS]; |
| 228 | struct thread *curr_thread[MAX_CPUS]; |
| 229 | char next_shortname1; |
| 230 | char next_shortname2; |
| 231 | unsigned int replay_repeat; |
| 232 | unsigned long nr_run_events; |
| 233 | unsigned long nr_sleep_events; |
| 234 | unsigned long nr_wakeup_events; |
| 235 | unsigned long nr_sleep_corrections; |
| 236 | unsigned long nr_run_events_optimized; |
| 237 | unsigned long targetless_wakeups; |
| 238 | unsigned long multitarget_wakeups; |
| 239 | unsigned long nr_runs; |
| 240 | unsigned long nr_timestamps; |
| 241 | unsigned long nr_unordered_timestamps; |
| 242 | unsigned long nr_state_machine_bugs; |
| 243 | unsigned long nr_context_switch_bugs; |
| 244 | unsigned long nr_events; |
| 245 | unsigned long nr_lost_chunks; |
| 246 | unsigned long nr_lost_events; |
| 247 | u64 run_measurement_overhead; |
| 248 | u64 sleep_measurement_overhead; |
| 249 | u64 start_time; |
| 250 | u64 cpu_usage; |
| 251 | u64 runavg_cpu_usage; |
| 252 | u64 parent_cpu_usage; |
| 253 | u64 runavg_parent_cpu_usage; |
| 254 | u64 sum_runtime; |
| 255 | u64 sum_fluct; |
| 256 | u64 run_avg; |
| 257 | u64 all_runtime; |
| 258 | u64 all_count; |
| 259 | u64 cpu_last_switched[MAX_CPUS]; |
| 260 | struct rb_root atom_root, sorted_atom_root; |
| 261 | struct list_head sort_list, cmp_pid; |
| 262 | }; |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 263 | |
| 264 | static u64 get_nsecs(void) |
| 265 | { |
| 266 | struct timespec ts; |
| 267 | |
| 268 | clock_gettime(CLOCK_MONOTONIC, &ts); |
| 269 | |
| 270 | return ts.tv_sec * 1000000000ULL + ts.tv_nsec; |
| 271 | } |
| 272 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 273 | static void burn_nsecs(struct perf_sched *sched, u64 nsecs) |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 274 | { |
| 275 | u64 T0 = get_nsecs(), T1; |
| 276 | |
| 277 | do { |
| 278 | T1 = get_nsecs(); |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 279 | } while (T1 + sched->run_measurement_overhead < T0 + nsecs); |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 280 | } |
| 281 | |
| 282 | static void sleep_nsecs(u64 nsecs) |
| 283 | { |
| 284 | struct timespec ts; |
| 285 | |
| 286 | ts.tv_nsec = nsecs % 999999999; |
| 287 | ts.tv_sec = nsecs / 999999999; |
| 288 | |
| 289 | nanosleep(&ts, NULL); |
| 290 | } |
| 291 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 292 | static void calibrate_run_measurement_overhead(struct perf_sched *sched) |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 293 | { |
| 294 | u64 T0, T1, delta, min_delta = 1000000000ULL; |
| 295 | int i; |
| 296 | |
| 297 | for (i = 0; i < 10; i++) { |
| 298 | T0 = get_nsecs(); |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 299 | burn_nsecs(sched, 0); |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 300 | T1 = get_nsecs(); |
| 301 | delta = T1-T0; |
| 302 | min_delta = min(min_delta, delta); |
| 303 | } |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 304 | sched->run_measurement_overhead = min_delta; |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 305 | |
Arnaldo Carvalho de Melo | 9486aa3 | 2011-01-22 20:37:02 -0200 | [diff] [blame] | 306 | printf("run measurement overhead: %" PRIu64 " nsecs\n", min_delta); |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 307 | } |
| 308 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 309 | static void calibrate_sleep_measurement_overhead(struct perf_sched *sched) |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 310 | { |
| 311 | u64 T0, T1, delta, min_delta = 1000000000ULL; |
| 312 | int i; |
| 313 | |
| 314 | for (i = 0; i < 10; i++) { |
| 315 | T0 = get_nsecs(); |
| 316 | sleep_nsecs(10000); |
| 317 | T1 = get_nsecs(); |
| 318 | delta = T1-T0; |
| 319 | min_delta = min(min_delta, delta); |
| 320 | } |
| 321 | min_delta -= 10000; |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 322 | sched->sleep_measurement_overhead = min_delta; |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 323 | |
Arnaldo Carvalho de Melo | 9486aa3 | 2011-01-22 20:37:02 -0200 | [diff] [blame] | 324 | printf("sleep measurement overhead: %" PRIu64 " nsecs\n", min_delta); |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 325 | } |
| 326 | |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 327 | static struct sched_atom * |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 328 | get_new_event(struct task_desc *task, u64 timestamp) |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 329 | { |
Arnaldo Carvalho de Melo | 3647948 | 2009-11-24 12:05:16 -0200 | [diff] [blame] | 330 | struct sched_atom *event = zalloc(sizeof(*event)); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 331 | unsigned long idx = task->nr_events; |
| 332 | size_t size; |
| 333 | |
| 334 | event->timestamp = timestamp; |
| 335 | event->nr = idx; |
| 336 | |
| 337 | task->nr_events++; |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 338 | size = sizeof(struct sched_atom *) * task->nr_events; |
| 339 | task->atoms = realloc(task->atoms, size); |
| 340 | BUG_ON(!task->atoms); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 341 | |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 342 | task->atoms[idx] = event; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 343 | |
| 344 | return event; |
| 345 | } |
| 346 | |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 347 | static struct sched_atom *last_event(struct task_desc *task) |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 348 | { |
| 349 | if (!task->nr_events) |
| 350 | return NULL; |
| 351 | |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 352 | return task->atoms[task->nr_events - 1]; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 353 | } |
| 354 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 355 | static void add_sched_event_run(struct perf_sched *sched, struct task_desc *task, |
| 356 | u64 timestamp, u64 duration) |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 357 | { |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 358 | struct sched_atom *event, *curr_event = last_event(task); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 359 | |
| 360 | /* |
Ingo Molnar | fbf9482 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 361 | * optimize an existing RUN event by merging this one |
| 362 | * to it: |
| 363 | */ |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 364 | if (curr_event && curr_event->type == SCHED_EVENT_RUN) { |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 365 | sched->nr_run_events_optimized++; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 366 | curr_event->duration += duration; |
| 367 | return; |
| 368 | } |
| 369 | |
| 370 | event = get_new_event(task, timestamp); |
| 371 | |
| 372 | event->type = SCHED_EVENT_RUN; |
| 373 | event->duration = duration; |
| 374 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 375 | sched->nr_run_events++; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 376 | } |
| 377 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 378 | static void add_sched_event_wakeup(struct perf_sched *sched, struct task_desc *task, |
| 379 | u64 timestamp, struct task_desc *wakee) |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 380 | { |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 381 | struct sched_atom *event, *wakee_event; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 382 | |
| 383 | event = get_new_event(task, timestamp); |
| 384 | event->type = SCHED_EVENT_WAKEUP; |
| 385 | event->wakee = wakee; |
| 386 | |
| 387 | wakee_event = last_event(wakee); |
| 388 | if (!wakee_event || wakee_event->type != SCHED_EVENT_SLEEP) { |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 389 | sched->targetless_wakeups++; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 390 | return; |
| 391 | } |
| 392 | if (wakee_event->wait_sem) { |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 393 | sched->multitarget_wakeups++; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 394 | return; |
| 395 | } |
| 396 | |
Arnaldo Carvalho de Melo | 3647948 | 2009-11-24 12:05:16 -0200 | [diff] [blame] | 397 | wakee_event->wait_sem = zalloc(sizeof(*wakee_event->wait_sem)); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 398 | sem_init(wakee_event->wait_sem, 0, 0); |
| 399 | wakee_event->specific_wait = 1; |
| 400 | event->wait_sem = wakee_event->wait_sem; |
| 401 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 402 | sched->nr_wakeup_events++; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 403 | } |
| 404 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 405 | static void add_sched_event_sleep(struct perf_sched *sched, struct task_desc *task, |
| 406 | u64 timestamp, u64 task_state __maybe_unused) |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 407 | { |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 408 | struct sched_atom *event = get_new_event(task, timestamp); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 409 | |
| 410 | event->type = SCHED_EVENT_SLEEP; |
| 411 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 412 | sched->nr_sleep_events++; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 413 | } |
| 414 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 415 | static struct task_desc *register_pid(struct perf_sched *sched, |
| 416 | unsigned long pid, const char *comm) |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 417 | { |
| 418 | struct task_desc *task; |
| 419 | |
| 420 | BUG_ON(pid >= MAX_PID); |
| 421 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 422 | task = sched->pid_to_task[pid]; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 423 | |
| 424 | if (task) |
| 425 | return task; |
| 426 | |
Arnaldo Carvalho de Melo | 3647948 | 2009-11-24 12:05:16 -0200 | [diff] [blame] | 427 | task = zalloc(sizeof(*task)); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 428 | task->pid = pid; |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 429 | task->nr = sched->nr_tasks; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 430 | strcpy(task->comm, comm); |
| 431 | /* |
| 432 | * every task starts in sleeping state - this gets ignored |
| 433 | * if there's no wakeup pointing to this sleep state: |
| 434 | */ |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 435 | add_sched_event_sleep(sched, task, 0, 0); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 436 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 437 | sched->pid_to_task[pid] = task; |
| 438 | sched->nr_tasks++; |
| 439 | sched->tasks = realloc(sched->tasks, sched->nr_tasks * sizeof(struct task_task *)); |
| 440 | BUG_ON(!sched->tasks); |
| 441 | sched->tasks[task->nr] = task; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 442 | |
Ingo Molnar | ad236fd | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 443 | if (verbose) |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 444 | printf("registered task #%ld, PID %ld (%s)\n", sched->nr_tasks, pid, comm); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 445 | |
| 446 | return task; |
| 447 | } |
| 448 | |
| 449 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 450 | static void print_task_traces(struct perf_sched *sched) |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 451 | { |
| 452 | struct task_desc *task; |
| 453 | unsigned long i; |
| 454 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 455 | for (i = 0; i < sched->nr_tasks; i++) { |
| 456 | task = sched->tasks[i]; |
Ingo Molnar | ad236fd | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 457 | printf("task %6ld (%20s:%10ld), nr_events: %ld\n", |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 458 | task->nr, task->comm, task->pid, task->nr_events); |
| 459 | } |
| 460 | } |
| 461 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 462 | static void add_cross_task_wakeups(struct perf_sched *sched) |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 463 | { |
| 464 | struct task_desc *task1, *task2; |
| 465 | unsigned long i, j; |
| 466 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 467 | for (i = 0; i < sched->nr_tasks; i++) { |
| 468 | task1 = sched->tasks[i]; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 469 | j = i + 1; |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 470 | if (j == sched->nr_tasks) |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 471 | j = 0; |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 472 | task2 = sched->tasks[j]; |
| 473 | add_sched_event_wakeup(sched, task1, 0, task2); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 474 | } |
| 475 | } |
| 476 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 477 | static void perf_sched__process_event(struct perf_sched *sched, |
| 478 | struct sched_atom *atom) |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 479 | { |
| 480 | int ret = 0; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 481 | |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 482 | switch (atom->type) { |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 483 | case SCHED_EVENT_RUN: |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 484 | burn_nsecs(sched, atom->duration); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 485 | break; |
| 486 | case SCHED_EVENT_SLEEP: |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 487 | if (atom->wait_sem) |
| 488 | ret = sem_wait(atom->wait_sem); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 489 | BUG_ON(ret); |
| 490 | break; |
| 491 | case SCHED_EVENT_WAKEUP: |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 492 | if (atom->wait_sem) |
| 493 | ret = sem_post(atom->wait_sem); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 494 | BUG_ON(ret); |
| 495 | break; |
Mike Galbraith | 55ffb7a | 2009-10-10 14:46:04 +0200 | [diff] [blame] | 496 | case SCHED_EVENT_MIGRATION: |
| 497 | break; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 498 | default: |
| 499 | BUG_ON(1); |
| 500 | } |
| 501 | } |
| 502 | |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 503 | static u64 get_cpu_usage_nsec_parent(void) |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 504 | { |
| 505 | struct rusage ru; |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 506 | u64 sum; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 507 | int err; |
| 508 | |
| 509 | err = getrusage(RUSAGE_SELF, &ru); |
| 510 | BUG_ON(err); |
| 511 | |
| 512 | sum = ru.ru_utime.tv_sec*1e9 + ru.ru_utime.tv_usec*1e3; |
| 513 | sum += ru.ru_stime.tv_sec*1e9 + ru.ru_stime.tv_usec*1e3; |
| 514 | |
| 515 | return sum; |
| 516 | } |
| 517 | |
Xiao Guangrong | c0c9e72 | 2009-12-09 17:51:30 +0800 | [diff] [blame] | 518 | static int self_open_counters(void) |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 519 | { |
Xiao Guangrong | c0c9e72 | 2009-12-09 17:51:30 +0800 | [diff] [blame] | 520 | struct perf_event_attr attr; |
| 521 | int fd; |
| 522 | |
| 523 | memset(&attr, 0, sizeof(attr)); |
| 524 | |
| 525 | attr.type = PERF_TYPE_SOFTWARE; |
| 526 | attr.config = PERF_COUNT_SW_TASK_CLOCK; |
| 527 | |
| 528 | fd = sys_perf_event_open(&attr, 0, -1, -1, 0); |
| 529 | |
| 530 | if (fd < 0) |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 531 | pr_debug("Error: sys_perf_event_open() syscall returned" |
| 532 | "with %d (%s)\n", fd, strerror(errno)); |
Xiao Guangrong | c0c9e72 | 2009-12-09 17:51:30 +0800 | [diff] [blame] | 533 | return fd; |
| 534 | } |
| 535 | |
| 536 | static u64 get_cpu_usage_nsec_self(int fd) |
| 537 | { |
| 538 | u64 runtime; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 539 | int ret; |
| 540 | |
Xiao Guangrong | c0c9e72 | 2009-12-09 17:51:30 +0800 | [diff] [blame] | 541 | ret = read(fd, &runtime, sizeof(runtime)); |
| 542 | BUG_ON(ret != sizeof(runtime)); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 543 | |
Xiao Guangrong | c0c9e72 | 2009-12-09 17:51:30 +0800 | [diff] [blame] | 544 | return runtime; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 545 | } |
| 546 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 547 | struct sched_thread_parms { |
| 548 | struct task_desc *task; |
| 549 | struct perf_sched *sched; |
| 550 | }; |
| 551 | |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 552 | static void *thread_func(void *ctx) |
| 553 | { |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 554 | struct sched_thread_parms *parms = ctx; |
| 555 | struct task_desc *this_task = parms->task; |
| 556 | struct perf_sched *sched = parms->sched; |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 557 | u64 cpu_usage_0, cpu_usage_1; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 558 | unsigned long i, ret; |
| 559 | char comm2[22]; |
Xiao Guangrong | c0c9e72 | 2009-12-09 17:51:30 +0800 | [diff] [blame] | 560 | int fd; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 561 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 562 | free(parms); |
| 563 | |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 564 | sprintf(comm2, ":%s", this_task->comm); |
| 565 | prctl(PR_SET_NAME, comm2); |
Xiao Guangrong | c0c9e72 | 2009-12-09 17:51:30 +0800 | [diff] [blame] | 566 | fd = self_open_counters(); |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 567 | if (fd < 0) |
| 568 | return NULL; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 569 | again: |
| 570 | ret = sem_post(&this_task->ready_for_work); |
| 571 | BUG_ON(ret); |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 572 | ret = pthread_mutex_lock(&sched->start_work_mutex); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 573 | BUG_ON(ret); |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 574 | ret = pthread_mutex_unlock(&sched->start_work_mutex); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 575 | BUG_ON(ret); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 576 | |
Xiao Guangrong | c0c9e72 | 2009-12-09 17:51:30 +0800 | [diff] [blame] | 577 | cpu_usage_0 = get_cpu_usage_nsec_self(fd); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 578 | |
| 579 | for (i = 0; i < this_task->nr_events; i++) { |
| 580 | this_task->curr_event = i; |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 581 | perf_sched__process_event(sched, this_task->atoms[i]); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 582 | } |
| 583 | |
Xiao Guangrong | c0c9e72 | 2009-12-09 17:51:30 +0800 | [diff] [blame] | 584 | cpu_usage_1 = get_cpu_usage_nsec_self(fd); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 585 | this_task->cpu_usage = cpu_usage_1 - cpu_usage_0; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 586 | ret = sem_post(&this_task->work_done_sem); |
| 587 | BUG_ON(ret); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 588 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 589 | ret = pthread_mutex_lock(&sched->work_done_wait_mutex); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 590 | BUG_ON(ret); |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 591 | ret = pthread_mutex_unlock(&sched->work_done_wait_mutex); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 592 | BUG_ON(ret); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 593 | |
| 594 | goto again; |
| 595 | } |
| 596 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 597 | static void create_tasks(struct perf_sched *sched) |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 598 | { |
| 599 | struct task_desc *task; |
| 600 | pthread_attr_t attr; |
| 601 | unsigned long i; |
| 602 | int err; |
| 603 | |
| 604 | err = pthread_attr_init(&attr); |
| 605 | BUG_ON(err); |
Jiri Pirko | 12f7e03 | 2011-01-10 14:14:23 -0200 | [diff] [blame] | 606 | err = pthread_attr_setstacksize(&attr, |
| 607 | (size_t) max(16 * 1024, PTHREAD_STACK_MIN)); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 608 | BUG_ON(err); |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 609 | err = pthread_mutex_lock(&sched->start_work_mutex); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 610 | BUG_ON(err); |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 611 | err = pthread_mutex_lock(&sched->work_done_wait_mutex); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 612 | BUG_ON(err); |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 613 | for (i = 0; i < sched->nr_tasks; i++) { |
| 614 | struct sched_thread_parms *parms = malloc(sizeof(*parms)); |
| 615 | BUG_ON(parms == NULL); |
| 616 | parms->task = task = sched->tasks[i]; |
| 617 | parms->sched = sched; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 618 | sem_init(&task->sleep_sem, 0, 0); |
| 619 | sem_init(&task->ready_for_work, 0, 0); |
| 620 | sem_init(&task->work_done_sem, 0, 0); |
| 621 | task->curr_event = 0; |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 622 | err = pthread_create(&task->thread, &attr, thread_func, parms); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 623 | BUG_ON(err); |
| 624 | } |
| 625 | } |
| 626 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 627 | static void wait_for_tasks(struct perf_sched *sched) |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 628 | { |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 629 | u64 cpu_usage_0, cpu_usage_1; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 630 | struct task_desc *task; |
| 631 | unsigned long i, ret; |
| 632 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 633 | sched->start_time = get_nsecs(); |
| 634 | sched->cpu_usage = 0; |
| 635 | pthread_mutex_unlock(&sched->work_done_wait_mutex); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 636 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 637 | for (i = 0; i < sched->nr_tasks; i++) { |
| 638 | task = sched->tasks[i]; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 639 | ret = sem_wait(&task->ready_for_work); |
| 640 | BUG_ON(ret); |
| 641 | sem_init(&task->ready_for_work, 0, 0); |
| 642 | } |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 643 | ret = pthread_mutex_lock(&sched->work_done_wait_mutex); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 644 | BUG_ON(ret); |
| 645 | |
| 646 | cpu_usage_0 = get_cpu_usage_nsec_parent(); |
| 647 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 648 | pthread_mutex_unlock(&sched->start_work_mutex); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 649 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 650 | for (i = 0; i < sched->nr_tasks; i++) { |
| 651 | task = sched->tasks[i]; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 652 | ret = sem_wait(&task->work_done_sem); |
| 653 | BUG_ON(ret); |
| 654 | sem_init(&task->work_done_sem, 0, 0); |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 655 | sched->cpu_usage += task->cpu_usage; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 656 | task->cpu_usage = 0; |
| 657 | } |
| 658 | |
| 659 | cpu_usage_1 = get_cpu_usage_nsec_parent(); |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 660 | if (!sched->runavg_cpu_usage) |
| 661 | sched->runavg_cpu_usage = sched->cpu_usage; |
| 662 | sched->runavg_cpu_usage = (sched->runavg_cpu_usage * 9 + sched->cpu_usage) / 10; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 663 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 664 | sched->parent_cpu_usage = cpu_usage_1 - cpu_usage_0; |
| 665 | if (!sched->runavg_parent_cpu_usage) |
| 666 | sched->runavg_parent_cpu_usage = sched->parent_cpu_usage; |
| 667 | sched->runavg_parent_cpu_usage = (sched->runavg_parent_cpu_usage * 9 + |
| 668 | sched->parent_cpu_usage)/10; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 669 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 670 | ret = pthread_mutex_lock(&sched->start_work_mutex); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 671 | BUG_ON(ret); |
| 672 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 673 | for (i = 0; i < sched->nr_tasks; i++) { |
| 674 | task = sched->tasks[i]; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 675 | sem_init(&task->sleep_sem, 0, 0); |
| 676 | task->curr_event = 0; |
| 677 | } |
| 678 | } |
| 679 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 680 | static void run_one_test(struct perf_sched *sched) |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 681 | { |
Kyle McMartin | fb7d0b3 | 2011-01-24 11:13:04 -0500 | [diff] [blame] | 682 | u64 T0, T1, delta, avg_delta, fluct; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 683 | |
| 684 | T0 = get_nsecs(); |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 685 | wait_for_tasks(sched); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 686 | T1 = get_nsecs(); |
| 687 | |
| 688 | delta = T1 - T0; |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 689 | sched->sum_runtime += delta; |
| 690 | sched->nr_runs++; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 691 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 692 | avg_delta = sched->sum_runtime / sched->nr_runs; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 693 | if (delta < avg_delta) |
| 694 | fluct = avg_delta - delta; |
| 695 | else |
| 696 | fluct = delta - avg_delta; |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 697 | sched->sum_fluct += fluct; |
| 698 | if (!sched->run_avg) |
| 699 | sched->run_avg = delta; |
| 700 | sched->run_avg = (sched->run_avg * 9 + delta) / 10; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 701 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 702 | printf("#%-3ld: %0.3f, ", sched->nr_runs, (double)delta / 1000000.0); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 703 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 704 | printf("ravg: %0.2f, ", (double)sched->run_avg / 1e6); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 705 | |
Ingo Molnar | ad236fd | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 706 | printf("cpu: %0.2f / %0.2f", |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 707 | (double)sched->cpu_usage / 1e6, (double)sched->runavg_cpu_usage / 1e6); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 708 | |
| 709 | #if 0 |
| 710 | /* |
Ingo Molnar | fbf9482 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 711 | * rusage statistics done by the parent, these are less |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 712 | * accurate than the sched->sum_exec_runtime based statistics: |
Ingo Molnar | fbf9482 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 713 | */ |
Ingo Molnar | ad236fd | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 714 | printf(" [%0.2f / %0.2f]", |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 715 | (double)sched->parent_cpu_usage/1e6, |
| 716 | (double)sched->runavg_parent_cpu_usage/1e6); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 717 | #endif |
| 718 | |
Ingo Molnar | ad236fd | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 719 | printf("\n"); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 720 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 721 | if (sched->nr_sleep_corrections) |
| 722 | printf(" (%ld sleep corrections)\n", sched->nr_sleep_corrections); |
| 723 | sched->nr_sleep_corrections = 0; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 724 | } |
| 725 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 726 | static void test_calibrations(struct perf_sched *sched) |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 727 | { |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 728 | u64 T0, T1; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 729 | |
| 730 | T0 = get_nsecs(); |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 731 | burn_nsecs(sched, 1e6); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 732 | T1 = get_nsecs(); |
| 733 | |
Arnaldo Carvalho de Melo | 9486aa3 | 2011-01-22 20:37:02 -0200 | [diff] [blame] | 734 | printf("the run test took %" PRIu64 " nsecs\n", T1 - T0); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 735 | |
| 736 | T0 = get_nsecs(); |
| 737 | sleep_nsecs(1e6); |
| 738 | T1 = get_nsecs(); |
| 739 | |
Arnaldo Carvalho de Melo | 9486aa3 | 2011-01-22 20:37:02 -0200 | [diff] [blame] | 740 | printf("the sleep test took %" PRIu64 " nsecs\n", T1 - T0); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 741 | } |
| 742 | |
Frederic Weisbecker | 4653881 | 2009-09-12 02:43:45 +0200 | [diff] [blame] | 743 | #define FILL_FIELD(ptr, field, event, data) \ |
| 744 | ptr.field = (typeof(ptr.field)) raw_field_value(event, #field, data) |
| 745 | |
| 746 | #define FILL_ARRAY(ptr, array, event, data) \ |
| 747 | do { \ |
| 748 | void *__array = raw_field_ptr(event, #array, data); \ |
| 749 | memcpy(ptr.array, __array, sizeof(ptr.array)); \ |
| 750 | } while(0) |
| 751 | |
| 752 | #define FILL_COMMON_FIELDS(ptr, event, data) \ |
| 753 | do { \ |
| 754 | FILL_FIELD(ptr, common_type, event, data); \ |
| 755 | FILL_FIELD(ptr, common_flags, event, data); \ |
| 756 | FILL_FIELD(ptr, common_preempt_count, event, data); \ |
| 757 | FILL_FIELD(ptr, common_pid, event, data); \ |
| 758 | FILL_FIELD(ptr, common_tgid, event, data); \ |
| 759 | } while (0) |
| 760 | |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 761 | static int |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 762 | replay_wakeup_event(struct perf_sched *sched, |
| 763 | struct trace_wakeup_event *wakeup_event, |
Irina Tirdea | 1d037ca | 2012-09-11 01:15:03 +0300 | [diff] [blame] | 764 | struct machine *machine __maybe_unused, |
Arnaldo Carvalho de Melo | 7f7f8d0 | 2012-08-07 11:33:42 -0300 | [diff] [blame] | 765 | struct event_format *event, struct perf_sample *sample) |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 766 | { |
Frederic Weisbecker | 419ab0d | 2009-09-12 03:59:01 +0200 | [diff] [blame] | 767 | struct task_desc *waker, *wakee; |
| 768 | |
| 769 | if (verbose) { |
| 770 | printf("sched_wakeup event %p\n", event); |
| 771 | |
| 772 | printf(" ... pid %d woke up %s/%d\n", |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 773 | wakeup_event->common_pid, wakeup_event->comm, wakeup_event->pid); |
Frederic Weisbecker | 419ab0d | 2009-09-12 03:59:01 +0200 | [diff] [blame] | 774 | } |
| 775 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 776 | waker = register_pid(sched, wakeup_event->common_pid, "<unknown>"); |
| 777 | wakee = register_pid(sched, wakeup_event->pid, wakeup_event->comm); |
Frederic Weisbecker | 419ab0d | 2009-09-12 03:59:01 +0200 | [diff] [blame] | 778 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 779 | add_sched_event_wakeup(sched, waker, sample->time, wakee); |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 780 | return 0; |
Frederic Weisbecker | 419ab0d | 2009-09-12 03:59:01 +0200 | [diff] [blame] | 781 | } |
| 782 | |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 783 | static int |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 784 | replay_switch_event(struct perf_sched *sched, |
| 785 | struct trace_switch_event *switch_event, |
Irina Tirdea | 1d037ca | 2012-09-11 01:15:03 +0300 | [diff] [blame] | 786 | struct machine *machine __maybe_unused, |
Steven Rostedt | aaf045f | 2012-04-06 00:47:56 +0200 | [diff] [blame] | 787 | struct event_format *event, |
Arnaldo Carvalho de Melo | 7f7f8d0 | 2012-08-07 11:33:42 -0300 | [diff] [blame] | 788 | struct perf_sample *sample) |
Frederic Weisbecker | 419ab0d | 2009-09-12 03:59:01 +0200 | [diff] [blame] | 789 | { |
Irina Tirdea | 1d037ca | 2012-09-11 01:15:03 +0300 | [diff] [blame] | 790 | struct task_desc *prev, __maybe_unused *next; |
Arnaldo Carvalho de Melo | 7f7f8d0 | 2012-08-07 11:33:42 -0300 | [diff] [blame] | 791 | u64 timestamp0, timestamp = sample->time; |
| 792 | int cpu = sample->cpu; |
Ingo Molnar | fbf9482 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 793 | s64 delta; |
| 794 | |
Ingo Molnar | ad236fd | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 795 | if (verbose) |
| 796 | printf("sched_switch event %p\n", event); |
| 797 | |
Ingo Molnar | fbf9482 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 798 | if (cpu >= MAX_CPUS || cpu < 0) |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 799 | return 0; |
Ingo Molnar | fbf9482 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 800 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 801 | timestamp0 = sched->cpu_last_switched[cpu]; |
Ingo Molnar | fbf9482 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 802 | if (timestamp0) |
| 803 | delta = timestamp - timestamp0; |
| 804 | else |
| 805 | delta = 0; |
| 806 | |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 807 | if (delta < 0) { |
| 808 | pr_debug("hm, delta: %" PRIu64 " < 0 ?\n", delta); |
| 809 | return -1; |
| 810 | } |
Ingo Molnar | fbf9482 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 811 | |
Ingo Molnar | ad236fd | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 812 | if (verbose) { |
Arnaldo Carvalho de Melo | 9486aa3 | 2011-01-22 20:37:02 -0200 | [diff] [blame] | 813 | printf(" ... switch from %s/%d to %s/%d [ran %" PRIu64 " nsecs]\n", |
Frederic Weisbecker | 419ab0d | 2009-09-12 03:59:01 +0200 | [diff] [blame] | 814 | switch_event->prev_comm, switch_event->prev_pid, |
| 815 | switch_event->next_comm, switch_event->next_pid, |
Ingo Molnar | ad236fd | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 816 | delta); |
| 817 | } |
Ingo Molnar | fbf9482 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 818 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 819 | prev = register_pid(sched, switch_event->prev_pid, switch_event->prev_comm); |
| 820 | next = register_pid(sched, switch_event->next_pid, switch_event->next_comm); |
Ingo Molnar | fbf9482 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 821 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 822 | sched->cpu_last_switched[cpu] = timestamp; |
Ingo Molnar | fbf9482 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 823 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 824 | add_sched_event_run(sched, prev, timestamp, delta); |
| 825 | add_sched_event_sleep(sched, prev, timestamp, switch_event->prev_state); |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 826 | |
| 827 | return 0; |
Ingo Molnar | fbf9482 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 828 | } |
| 829 | |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 830 | static int |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 831 | replay_fork_event(struct perf_sched *sched, struct trace_fork_event *fork_event, |
Arnaldo Carvalho de Melo | 7f7f8d0 | 2012-08-07 11:33:42 -0300 | [diff] [blame] | 832 | struct event_format *event) |
Frederic Weisbecker | 419ab0d | 2009-09-12 03:59:01 +0200 | [diff] [blame] | 833 | { |
| 834 | if (verbose) { |
| 835 | printf("sched_fork event %p\n", event); |
| 836 | printf("... parent: %s/%d\n", fork_event->parent_comm, fork_event->parent_pid); |
| 837 | printf("... child: %s/%d\n", fork_event->child_comm, fork_event->child_pid); |
| 838 | } |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 839 | register_pid(sched, fork_event->parent_pid, fork_event->parent_comm); |
| 840 | register_pid(sched, fork_event->child_pid, fork_event->child_comm); |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 841 | return 0; |
Frederic Weisbecker | 419ab0d | 2009-09-12 03:59:01 +0200 | [diff] [blame] | 842 | } |
| 843 | |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 844 | struct sort_dimension { |
| 845 | const char *name; |
Ingo Molnar | b5fae12 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 846 | sort_fn_t cmp; |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 847 | struct list_head list; |
| 848 | }; |
| 849 | |
Frederic Weisbecker | daa1d7a | 2009-09-13 03:36:29 +0200 | [diff] [blame] | 850 | static int |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 851 | thread_lat_cmp(struct list_head *list, struct work_atoms *l, struct work_atoms *r) |
Frederic Weisbecker | daa1d7a | 2009-09-13 03:36:29 +0200 | [diff] [blame] | 852 | { |
| 853 | struct sort_dimension *sort; |
| 854 | int ret = 0; |
| 855 | |
Ingo Molnar | b5fae12 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 856 | BUG_ON(list_empty(list)); |
| 857 | |
Frederic Weisbecker | daa1d7a | 2009-09-13 03:36:29 +0200 | [diff] [blame] | 858 | list_for_each_entry(sort, list, list) { |
| 859 | ret = sort->cmp(l, r); |
| 860 | if (ret) |
| 861 | return ret; |
| 862 | } |
| 863 | |
| 864 | return ret; |
| 865 | } |
| 866 | |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 867 | static struct work_atoms * |
Ingo Molnar | b5fae12 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 868 | thread_atoms_search(struct rb_root *root, struct thread *thread, |
| 869 | struct list_head *sort_list) |
| 870 | { |
| 871 | struct rb_node *node = root->rb_node; |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 872 | struct work_atoms key = { .thread = thread }; |
Ingo Molnar | b5fae12 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 873 | |
| 874 | while (node) { |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 875 | struct work_atoms *atoms; |
Ingo Molnar | b5fae12 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 876 | int cmp; |
| 877 | |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 878 | atoms = container_of(node, struct work_atoms, node); |
Ingo Molnar | b5fae12 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 879 | |
| 880 | cmp = thread_lat_cmp(sort_list, &key, atoms); |
| 881 | if (cmp > 0) |
| 882 | node = node->rb_left; |
| 883 | else if (cmp < 0) |
| 884 | node = node->rb_right; |
| 885 | else { |
| 886 | BUG_ON(thread != atoms->thread); |
| 887 | return atoms; |
| 888 | } |
| 889 | } |
| 890 | return NULL; |
| 891 | } |
| 892 | |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 893 | static void |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 894 | __thread_latency_insert(struct rb_root *root, struct work_atoms *data, |
Frederic Weisbecker | daa1d7a | 2009-09-13 03:36:29 +0200 | [diff] [blame] | 895 | struct list_head *sort_list) |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 896 | { |
| 897 | struct rb_node **new = &(root->rb_node), *parent = NULL; |
| 898 | |
| 899 | while (*new) { |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 900 | struct work_atoms *this; |
Frederic Weisbecker | daa1d7a | 2009-09-13 03:36:29 +0200 | [diff] [blame] | 901 | int cmp; |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 902 | |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 903 | this = container_of(*new, struct work_atoms, node); |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 904 | parent = *new; |
Frederic Weisbecker | daa1d7a | 2009-09-13 03:36:29 +0200 | [diff] [blame] | 905 | |
| 906 | cmp = thread_lat_cmp(sort_list, data, this); |
| 907 | |
| 908 | if (cmp > 0) |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 909 | new = &((*new)->rb_left); |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 910 | else |
Frederic Weisbecker | daa1d7a | 2009-09-13 03:36:29 +0200 | [diff] [blame] | 911 | new = &((*new)->rb_right); |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 912 | } |
| 913 | |
| 914 | rb_link_node(&data->node, parent, new); |
| 915 | rb_insert_color(&data->node, root); |
| 916 | } |
| 917 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 918 | static int thread_atoms_insert(struct perf_sched *sched, struct thread *thread) |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 919 | { |
Arnaldo Carvalho de Melo | 3647948 | 2009-11-24 12:05:16 -0200 | [diff] [blame] | 920 | struct work_atoms *atoms = zalloc(sizeof(*atoms)); |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 921 | if (!atoms) { |
| 922 | pr_err("No memory at %s\n", __func__); |
| 923 | return -1; |
| 924 | } |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 925 | |
Frederic Weisbecker | 1756220 | 2009-09-12 23:11:32 +0200 | [diff] [blame] | 926 | atoms->thread = thread; |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 927 | INIT_LIST_HEAD(&atoms->work_list); |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 928 | __thread_latency_insert(&sched->atom_root, atoms, &sched->cmp_pid); |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 929 | return 0; |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 930 | } |
| 931 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 932 | static int latency_fork_event(struct perf_sched *sched __maybe_unused, |
| 933 | struct trace_fork_event *fork_event __maybe_unused, |
Irina Tirdea | 1d037ca | 2012-09-11 01:15:03 +0300 | [diff] [blame] | 934 | struct event_format *event __maybe_unused) |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 935 | { |
| 936 | /* should insert the newcomer */ |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 937 | return 0; |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 938 | } |
| 939 | |
| 940 | static char sched_out_state(struct trace_switch_event *switch_event) |
| 941 | { |
| 942 | const char *str = TASK_STATE_TO_CHAR_STR; |
| 943 | |
| 944 | return str[switch_event->prev_state]; |
| 945 | } |
| 946 | |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 947 | static int |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 948 | add_sched_out_event(struct work_atoms *atoms, |
| 949 | char run_state, |
| 950 | u64 timestamp) |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 951 | { |
Arnaldo Carvalho de Melo | 3647948 | 2009-11-24 12:05:16 -0200 | [diff] [blame] | 952 | struct work_atom *atom = zalloc(sizeof(*atom)); |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 953 | if (!atom) { |
| 954 | pr_err("Non memory at %s", __func__); |
| 955 | return -1; |
| 956 | } |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 957 | |
Frederic Weisbecker | aa1ab9d | 2009-09-14 03:01:12 +0200 | [diff] [blame] | 958 | atom->sched_out_time = timestamp; |
| 959 | |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 960 | if (run_state == 'R') { |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 961 | atom->state = THREAD_WAIT_CPU; |
Frederic Weisbecker | aa1ab9d | 2009-09-14 03:01:12 +0200 | [diff] [blame] | 962 | atom->wake_up_time = atom->sched_out_time; |
Frederic Weisbecker | c6ced61 | 2009-09-13 00:46:19 +0200 | [diff] [blame] | 963 | } |
| 964 | |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 965 | list_add_tail(&atom->list, &atoms->work_list); |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 966 | return 0; |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 967 | } |
| 968 | |
| 969 | static void |
Irina Tirdea | 1d037ca | 2012-09-11 01:15:03 +0300 | [diff] [blame] | 970 | add_runtime_event(struct work_atoms *atoms, u64 delta, |
| 971 | u64 timestamp __maybe_unused) |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 972 | { |
| 973 | struct work_atom *atom; |
| 974 | |
| 975 | BUG_ON(list_empty(&atoms->work_list)); |
| 976 | |
| 977 | atom = list_entry(atoms->work_list.prev, struct work_atom, list); |
| 978 | |
| 979 | atom->runtime += delta; |
| 980 | atoms->total_runtime += delta; |
| 981 | } |
| 982 | |
| 983 | static void |
| 984 | add_sched_in_event(struct work_atoms *atoms, u64 timestamp) |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 985 | { |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 986 | struct work_atom *atom; |
Frederic Weisbecker | 6668567 | 2009-09-13 01:56:25 +0200 | [diff] [blame] | 987 | u64 delta; |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 988 | |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 989 | if (list_empty(&atoms->work_list)) |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 990 | return; |
| 991 | |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 992 | atom = list_entry(atoms->work_list.prev, struct work_atom, list); |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 993 | |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 994 | if (atom->state != THREAD_WAIT_CPU) |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 995 | return; |
| 996 | |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 997 | if (timestamp < atom->wake_up_time) { |
| 998 | atom->state = THREAD_IGNORE; |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 999 | return; |
| 1000 | } |
| 1001 | |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1002 | atom->state = THREAD_SCHED_IN; |
| 1003 | atom->sched_in_time = timestamp; |
Frederic Weisbecker | 6668567 | 2009-09-13 01:56:25 +0200 | [diff] [blame] | 1004 | |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1005 | delta = atom->sched_in_time - atom->wake_up_time; |
Frederic Weisbecker | 6668567 | 2009-09-13 01:56:25 +0200 | [diff] [blame] | 1006 | atoms->total_lat += delta; |
Frederic Weisbecker | 3786310a | 2009-12-09 21:40:08 +0100 | [diff] [blame] | 1007 | if (delta > atoms->max_lat) { |
Frederic Weisbecker | 6668567 | 2009-09-13 01:56:25 +0200 | [diff] [blame] | 1008 | atoms->max_lat = delta; |
Frederic Weisbecker | 3786310a | 2009-12-09 21:40:08 +0100 | [diff] [blame] | 1009 | atoms->max_lat_at = timestamp; |
| 1010 | } |
Frederic Weisbecker | 6668567 | 2009-09-13 01:56:25 +0200 | [diff] [blame] | 1011 | atoms->nb_atoms++; |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 1012 | } |
| 1013 | |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 1014 | static int |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1015 | latency_switch_event(struct perf_sched *sched, |
| 1016 | struct trace_switch_event *switch_event, |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 1017 | struct machine *machine, |
Irina Tirdea | 1d037ca | 2012-09-11 01:15:03 +0300 | [diff] [blame] | 1018 | struct event_format *event __maybe_unused, |
Arnaldo Carvalho de Melo | 7f7f8d0 | 2012-08-07 11:33:42 -0300 | [diff] [blame] | 1019 | struct perf_sample *sample) |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 1020 | { |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1021 | struct work_atoms *out_events, *in_events; |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 1022 | struct thread *sched_out, *sched_in; |
Arnaldo Carvalho de Melo | 7f7f8d0 | 2012-08-07 11:33:42 -0300 | [diff] [blame] | 1023 | u64 timestamp0, timestamp = sample->time; |
| 1024 | int cpu = sample->cpu; |
Ingo Molnar | ea92ed5 | 2009-09-12 10:08:34 +0200 | [diff] [blame] | 1025 | s64 delta; |
| 1026 | |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1027 | BUG_ON(cpu >= MAX_CPUS || cpu < 0); |
Ingo Molnar | ea92ed5 | 2009-09-12 10:08:34 +0200 | [diff] [blame] | 1028 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1029 | timestamp0 = sched->cpu_last_switched[cpu]; |
| 1030 | sched->cpu_last_switched[cpu] = timestamp; |
Ingo Molnar | ea92ed5 | 2009-09-12 10:08:34 +0200 | [diff] [blame] | 1031 | if (timestamp0) |
| 1032 | delta = timestamp - timestamp0; |
| 1033 | else |
| 1034 | delta = 0; |
| 1035 | |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 1036 | if (delta < 0) { |
| 1037 | pr_err("hm, delta: %" PRIu64 " < 0 ?\n", delta); |
| 1038 | return -1; |
| 1039 | } |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 1040 | |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 1041 | sched_out = machine__findnew_thread(machine, switch_event->prev_pid); |
| 1042 | sched_in = machine__findnew_thread(machine, switch_event->next_pid); |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 1043 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1044 | out_events = thread_atoms_search(&sched->atom_root, sched_out, &sched->cmp_pid); |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1045 | if (!out_events) { |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1046 | if (thread_atoms_insert(sched, sched_out)) |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 1047 | return -1; |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1048 | out_events = thread_atoms_search(&sched->atom_root, sched_out, &sched->cmp_pid); |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 1049 | if (!out_events) { |
| 1050 | pr_err("out-event: Internal tree error"); |
| 1051 | return -1; |
| 1052 | } |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1053 | } |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 1054 | if (add_sched_out_event(out_events, sched_out_state(switch_event), timestamp)) |
| 1055 | return -1; |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1056 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1057 | in_events = thread_atoms_search(&sched->atom_root, sched_in, &sched->cmp_pid); |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1058 | if (!in_events) { |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1059 | if (thread_atoms_insert(sched, sched_in)) |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 1060 | return -1; |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1061 | in_events = thread_atoms_search(&sched->atom_root, sched_in, &sched->cmp_pid); |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 1062 | if (!in_events) { |
| 1063 | pr_err("in-event: Internal tree error"); |
| 1064 | return -1; |
| 1065 | } |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1066 | /* |
| 1067 | * Take came in we have not heard about yet, |
| 1068 | * add in an initial atom in runnable state: |
| 1069 | */ |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 1070 | if (add_sched_out_event(in_events, 'R', timestamp)) |
| 1071 | return -1; |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1072 | } |
| 1073 | add_sched_in_event(in_events, timestamp); |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 1074 | |
| 1075 | return 0; |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1076 | } |
| 1077 | |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 1078 | static int |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1079 | latency_runtime_event(struct perf_sched *sched, |
| 1080 | struct trace_runtime_event *runtime_event, |
Arnaldo Carvalho de Melo | 7f7f8d0 | 2012-08-07 11:33:42 -0300 | [diff] [blame] | 1081 | struct machine *machine, struct perf_sample *sample) |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1082 | { |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 1083 | struct thread *thread = machine__findnew_thread(machine, runtime_event->pid); |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1084 | struct work_atoms *atoms = thread_atoms_search(&sched->atom_root, thread, &sched->cmp_pid); |
Arnaldo Carvalho de Melo | 7f7f8d0 | 2012-08-07 11:33:42 -0300 | [diff] [blame] | 1085 | u64 timestamp = sample->time; |
| 1086 | int cpu = sample->cpu; |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1087 | |
| 1088 | BUG_ON(cpu >= MAX_CPUS || cpu < 0); |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1089 | if (!atoms) { |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1090 | if (thread_atoms_insert(sched, thread)) |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 1091 | return -1; |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1092 | atoms = thread_atoms_search(&sched->atom_root, thread, &sched->cmp_pid); |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 1093 | if (!atoms) { |
| 1094 | pr_debug("in-event: Internal tree error"); |
| 1095 | return -1; |
| 1096 | } |
| 1097 | if (add_sched_out_event(atoms, 'R', timestamp)) |
| 1098 | return -1; |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 1099 | } |
| 1100 | |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1101 | add_runtime_event(atoms, runtime_event->runtime, timestamp); |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 1102 | return 0; |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 1103 | } |
| 1104 | |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 1105 | static int |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1106 | latency_wakeup_event(struct perf_sched *sched, |
| 1107 | struct trace_wakeup_event *wakeup_event, |
Irina Tirdea | 1d037ca | 2012-09-11 01:15:03 +0300 | [diff] [blame] | 1108 | struct machine *machine, |
| 1109 | struct event_format *event __maybe_unused, |
Arnaldo Carvalho de Melo | 7f7f8d0 | 2012-08-07 11:33:42 -0300 | [diff] [blame] | 1110 | struct perf_sample *sample) |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 1111 | { |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1112 | struct work_atoms *atoms; |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1113 | struct work_atom *atom; |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 1114 | struct thread *wakee; |
Arnaldo Carvalho de Melo | 7f7f8d0 | 2012-08-07 11:33:42 -0300 | [diff] [blame] | 1115 | u64 timestamp = sample->time; |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 1116 | |
| 1117 | /* Note for later, it may be interesting to observe the failing cases */ |
| 1118 | if (!wakeup_event->success) |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 1119 | return 0; |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 1120 | |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 1121 | wakee = machine__findnew_thread(machine, wakeup_event->pid); |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1122 | atoms = thread_atoms_search(&sched->atom_root, wakee, &sched->cmp_pid); |
Frederic Weisbecker | 1756220 | 2009-09-12 23:11:32 +0200 | [diff] [blame] | 1123 | if (!atoms) { |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1124 | if (thread_atoms_insert(sched, wakee)) |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 1125 | return -1; |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1126 | atoms = thread_atoms_search(&sched->atom_root, wakee, &sched->cmp_pid); |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 1127 | if (!atoms) { |
| 1128 | pr_debug("wakeup-event: Internal tree error"); |
| 1129 | return -1; |
| 1130 | } |
| 1131 | if (add_sched_out_event(atoms, 'S', timestamp)) |
| 1132 | return -1; |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 1133 | } |
| 1134 | |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1135 | BUG_ON(list_empty(&atoms->work_list)); |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 1136 | |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1137 | atom = list_entry(atoms->work_list.prev, struct work_atom, list); |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 1138 | |
Mike Galbraith | 55ffb7a | 2009-10-10 14:46:04 +0200 | [diff] [blame] | 1139 | /* |
| 1140 | * You WILL be missing events if you've recorded only |
| 1141 | * one CPU, or are only looking at only one, so don't |
| 1142 | * make useless noise. |
| 1143 | */ |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1144 | if (sched->profile_cpu == -1 && atom->state != THREAD_SLEEPING) |
| 1145 | sched->nr_state_machine_bugs++; |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 1146 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1147 | sched->nr_timestamps++; |
Ingo Molnar | ea57c4f | 2009-09-13 18:15:54 +0200 | [diff] [blame] | 1148 | if (atom->sched_out_time > timestamp) { |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1149 | sched->nr_unordered_timestamps++; |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 1150 | return 0; |
Ingo Molnar | ea57c4f | 2009-09-13 18:15:54 +0200 | [diff] [blame] | 1151 | } |
Frederic Weisbecker | aa1ab9d | 2009-09-14 03:01:12 +0200 | [diff] [blame] | 1152 | |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1153 | atom->state = THREAD_WAIT_CPU; |
| 1154 | atom->wake_up_time = timestamp; |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 1155 | return 0; |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 1156 | } |
| 1157 | |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 1158 | static int |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1159 | latency_migrate_task_event(struct perf_sched *sched, |
| 1160 | struct trace_migrate_task_event *migrate_task_event, |
Arnaldo Carvalho de Melo | 7f7f8d0 | 2012-08-07 11:33:42 -0300 | [diff] [blame] | 1161 | struct machine *machine, struct perf_sample *sample) |
Mike Galbraith | 55ffb7a | 2009-10-10 14:46:04 +0200 | [diff] [blame] | 1162 | { |
Arnaldo Carvalho de Melo | 7f7f8d0 | 2012-08-07 11:33:42 -0300 | [diff] [blame] | 1163 | u64 timestamp = sample->time; |
Mike Galbraith | 55ffb7a | 2009-10-10 14:46:04 +0200 | [diff] [blame] | 1164 | struct work_atoms *atoms; |
| 1165 | struct work_atom *atom; |
| 1166 | struct thread *migrant; |
| 1167 | |
| 1168 | /* |
| 1169 | * Only need to worry about migration when profiling one CPU. |
| 1170 | */ |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1171 | if (sched->profile_cpu == -1) |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 1172 | return 0; |
Mike Galbraith | 55ffb7a | 2009-10-10 14:46:04 +0200 | [diff] [blame] | 1173 | |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 1174 | migrant = machine__findnew_thread(machine, migrate_task_event->pid); |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1175 | atoms = thread_atoms_search(&sched->atom_root, migrant, &sched->cmp_pid); |
Mike Galbraith | 55ffb7a | 2009-10-10 14:46:04 +0200 | [diff] [blame] | 1176 | if (!atoms) { |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1177 | if (thread_atoms_insert(sched, migrant)) |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 1178 | return -1; |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1179 | register_pid(sched, migrant->pid, migrant->comm); |
| 1180 | atoms = thread_atoms_search(&sched->atom_root, migrant, &sched->cmp_pid); |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 1181 | if (!atoms) { |
| 1182 | pr_debug("migration-event: Internal tree error"); |
| 1183 | return -1; |
| 1184 | } |
| 1185 | if (add_sched_out_event(atoms, 'R', timestamp)) |
| 1186 | return -1; |
Mike Galbraith | 55ffb7a | 2009-10-10 14:46:04 +0200 | [diff] [blame] | 1187 | } |
| 1188 | |
| 1189 | BUG_ON(list_empty(&atoms->work_list)); |
| 1190 | |
| 1191 | atom = list_entry(atoms->work_list.prev, struct work_atom, list); |
| 1192 | atom->sched_in_time = atom->sched_out_time = atom->wake_up_time = timestamp; |
| 1193 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1194 | sched->nr_timestamps++; |
Mike Galbraith | 55ffb7a | 2009-10-10 14:46:04 +0200 | [diff] [blame] | 1195 | |
| 1196 | if (atom->sched_out_time > timestamp) |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1197 | sched->nr_unordered_timestamps++; |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 1198 | |
| 1199 | return 0; |
Mike Galbraith | 55ffb7a | 2009-10-10 14:46:04 +0200 | [diff] [blame] | 1200 | } |
| 1201 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1202 | static void output_lat_thread(struct perf_sched *sched, struct work_atoms *work_list) |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 1203 | { |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 1204 | int i; |
| 1205 | int ret; |
Frederic Weisbecker | 6668567 | 2009-09-13 01:56:25 +0200 | [diff] [blame] | 1206 | u64 avg; |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 1207 | |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1208 | if (!work_list->nb_atoms) |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 1209 | return; |
Ingo Molnar | ea57c4f | 2009-09-13 18:15:54 +0200 | [diff] [blame] | 1210 | /* |
| 1211 | * Ignore idle threads: |
| 1212 | */ |
Ingo Molnar | 80ed098 | 2009-09-16 14:12:36 +0200 | [diff] [blame] | 1213 | if (!strcmp(work_list->thread->comm, "swapper")) |
Ingo Molnar | ea57c4f | 2009-09-13 18:15:54 +0200 | [diff] [blame] | 1214 | return; |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 1215 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1216 | sched->all_runtime += work_list->total_runtime; |
| 1217 | sched->all_count += work_list->nb_atoms; |
Frederic Weisbecker | 6668567 | 2009-09-13 01:56:25 +0200 | [diff] [blame] | 1218 | |
Ingo Molnar | 80ed098 | 2009-09-16 14:12:36 +0200 | [diff] [blame] | 1219 | ret = printf(" %s:%d ", work_list->thread->comm, work_list->thread->pid); |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 1220 | |
mingo | 08f69e6 | 2009-09-14 18:30:44 +0200 | [diff] [blame] | 1221 | for (i = 0; i < 24 - ret; i++) |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 1222 | printf(" "); |
| 1223 | |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1224 | avg = work_list->total_lat / work_list->nb_atoms; |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 1225 | |
Arnaldo Carvalho de Melo | 9486aa3 | 2011-01-22 20:37:02 -0200 | [diff] [blame] | 1226 | printf("|%11.3f ms |%9" PRIu64 " | avg:%9.3f ms | max:%9.3f ms | max at: %9.6f s\n", |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1227 | (double)work_list->total_runtime / 1e6, |
| 1228 | work_list->nb_atoms, (double)avg / 1e6, |
Frederic Weisbecker | 3786310a | 2009-12-09 21:40:08 +0100 | [diff] [blame] | 1229 | (double)work_list->max_lat / 1e6, |
| 1230 | (double)work_list->max_lat_at / 1e9); |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 1231 | } |
| 1232 | |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1233 | static int pid_cmp(struct work_atoms *l, struct work_atoms *r) |
Frederic Weisbecker | daa1d7a | 2009-09-13 03:36:29 +0200 | [diff] [blame] | 1234 | { |
Frederic Weisbecker | daa1d7a | 2009-09-13 03:36:29 +0200 | [diff] [blame] | 1235 | if (l->thread->pid < r->thread->pid) |
| 1236 | return -1; |
| 1237 | if (l->thread->pid > r->thread->pid) |
| 1238 | return 1; |
| 1239 | |
| 1240 | return 0; |
| 1241 | } |
| 1242 | |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1243 | static int avg_cmp(struct work_atoms *l, struct work_atoms *r) |
Frederic Weisbecker | daa1d7a | 2009-09-13 03:36:29 +0200 | [diff] [blame] | 1244 | { |
| 1245 | u64 avgl, avgr; |
| 1246 | |
| 1247 | if (!l->nb_atoms) |
| 1248 | return -1; |
| 1249 | |
| 1250 | if (!r->nb_atoms) |
| 1251 | return 1; |
| 1252 | |
| 1253 | avgl = l->total_lat / l->nb_atoms; |
| 1254 | avgr = r->total_lat / r->nb_atoms; |
| 1255 | |
| 1256 | if (avgl < avgr) |
| 1257 | return -1; |
| 1258 | if (avgl > avgr) |
| 1259 | return 1; |
| 1260 | |
| 1261 | return 0; |
| 1262 | } |
| 1263 | |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1264 | static int max_cmp(struct work_atoms *l, struct work_atoms *r) |
Frederic Weisbecker | daa1d7a | 2009-09-13 03:36:29 +0200 | [diff] [blame] | 1265 | { |
| 1266 | if (l->max_lat < r->max_lat) |
| 1267 | return -1; |
| 1268 | if (l->max_lat > r->max_lat) |
| 1269 | return 1; |
| 1270 | |
| 1271 | return 0; |
| 1272 | } |
| 1273 | |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1274 | static int switch_cmp(struct work_atoms *l, struct work_atoms *r) |
Frederic Weisbecker | daa1d7a | 2009-09-13 03:36:29 +0200 | [diff] [blame] | 1275 | { |
| 1276 | if (l->nb_atoms < r->nb_atoms) |
| 1277 | return -1; |
| 1278 | if (l->nb_atoms > r->nb_atoms) |
| 1279 | return 1; |
| 1280 | |
| 1281 | return 0; |
| 1282 | } |
| 1283 | |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1284 | static int runtime_cmp(struct work_atoms *l, struct work_atoms *r) |
Frederic Weisbecker | daa1d7a | 2009-09-13 03:36:29 +0200 | [diff] [blame] | 1285 | { |
| 1286 | if (l->total_runtime < r->total_runtime) |
| 1287 | return -1; |
| 1288 | if (l->total_runtime > r->total_runtime) |
| 1289 | return 1; |
| 1290 | |
| 1291 | return 0; |
| 1292 | } |
| 1293 | |
Randy Dunlap | cbef79a | 2009-10-05 13:17:29 -0700 | [diff] [blame] | 1294 | static int sort_dimension__add(const char *tok, struct list_head *list) |
Frederic Weisbecker | daa1d7a | 2009-09-13 03:36:29 +0200 | [diff] [blame] | 1295 | { |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1296 | size_t i; |
| 1297 | static struct sort_dimension avg_sort_dimension = { |
| 1298 | .name = "avg", |
| 1299 | .cmp = avg_cmp, |
| 1300 | }; |
| 1301 | static struct sort_dimension max_sort_dimension = { |
| 1302 | .name = "max", |
| 1303 | .cmp = max_cmp, |
| 1304 | }; |
| 1305 | static struct sort_dimension pid_sort_dimension = { |
| 1306 | .name = "pid", |
| 1307 | .cmp = pid_cmp, |
| 1308 | }; |
| 1309 | static struct sort_dimension runtime_sort_dimension = { |
| 1310 | .name = "runtime", |
| 1311 | .cmp = runtime_cmp, |
| 1312 | }; |
| 1313 | static struct sort_dimension switch_sort_dimension = { |
| 1314 | .name = "switch", |
| 1315 | .cmp = switch_cmp, |
| 1316 | }; |
| 1317 | struct sort_dimension *available_sorts[] = { |
| 1318 | &pid_sort_dimension, |
| 1319 | &avg_sort_dimension, |
| 1320 | &max_sort_dimension, |
| 1321 | &switch_sort_dimension, |
| 1322 | &runtime_sort_dimension, |
| 1323 | }; |
Frederic Weisbecker | daa1d7a | 2009-09-13 03:36:29 +0200 | [diff] [blame] | 1324 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1325 | for (i = 0; i < ARRAY_SIZE(available_sorts); i++) { |
Frederic Weisbecker | daa1d7a | 2009-09-13 03:36:29 +0200 | [diff] [blame] | 1326 | if (!strcmp(available_sorts[i]->name, tok)) { |
| 1327 | list_add_tail(&available_sorts[i]->list, list); |
| 1328 | |
| 1329 | return 0; |
| 1330 | } |
| 1331 | } |
| 1332 | |
| 1333 | return -1; |
| 1334 | } |
| 1335 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1336 | static void perf_sched__sort_lat(struct perf_sched *sched) |
Frederic Weisbecker | daa1d7a | 2009-09-13 03:36:29 +0200 | [diff] [blame] | 1337 | { |
| 1338 | struct rb_node *node; |
| 1339 | |
| 1340 | for (;;) { |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1341 | struct work_atoms *data; |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1342 | node = rb_first(&sched->atom_root); |
Frederic Weisbecker | daa1d7a | 2009-09-13 03:36:29 +0200 | [diff] [blame] | 1343 | if (!node) |
| 1344 | break; |
| 1345 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1346 | rb_erase(node, &sched->atom_root); |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1347 | data = rb_entry(node, struct work_atoms, node); |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1348 | __thread_latency_insert(&sched->sorted_atom_root, data, &sched->sort_list); |
Frederic Weisbecker | daa1d7a | 2009-09-13 03:36:29 +0200 | [diff] [blame] | 1349 | } |
| 1350 | } |
| 1351 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1352 | static int process_sched_wakeup_event(struct perf_tool *tool, |
Irina Tirdea | 1d037ca | 2012-09-11 01:15:03 +0300 | [diff] [blame] | 1353 | struct event_format *event, |
| 1354 | struct perf_sample *sample, |
Arnaldo Carvalho de Melo | 4218e67 | 2012-09-11 13:18:47 -0300 | [diff] [blame] | 1355 | struct machine *machine) |
Frederic Weisbecker | 419ab0d | 2009-09-12 03:59:01 +0200 | [diff] [blame] | 1356 | { |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1357 | struct perf_sched *sched = container_of(tool, struct perf_sched, tool); |
Arnaldo Carvalho de Melo | ee29be6 | 2011-11-28 17:57:40 -0200 | [diff] [blame] | 1358 | void *data = sample->raw_data; |
Frederic Weisbecker | 419ab0d | 2009-09-12 03:59:01 +0200 | [diff] [blame] | 1359 | struct trace_wakeup_event wakeup_event; |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 1360 | int err = 0; |
Frederic Weisbecker | 419ab0d | 2009-09-12 03:59:01 +0200 | [diff] [blame] | 1361 | |
Xiao Guangrong | f48f669 | 2009-12-07 13:04:04 +0800 | [diff] [blame] | 1362 | FILL_COMMON_FIELDS(wakeup_event, event, data); |
Frederic Weisbecker | 419ab0d | 2009-09-12 03:59:01 +0200 | [diff] [blame] | 1363 | |
Xiao Guangrong | f48f669 | 2009-12-07 13:04:04 +0800 | [diff] [blame] | 1364 | FILL_ARRAY(wakeup_event, comm, event, data); |
| 1365 | FILL_FIELD(wakeup_event, pid, event, data); |
| 1366 | FILL_FIELD(wakeup_event, prio, event, data); |
| 1367 | FILL_FIELD(wakeup_event, success, event, data); |
| 1368 | FILL_FIELD(wakeup_event, cpu, event, data); |
Frederic Weisbecker | 419ab0d | 2009-09-12 03:59:01 +0200 | [diff] [blame] | 1369 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1370 | if (sched->tp_handler->wakeup_event) |
| 1371 | err = sched->tp_handler->wakeup_event(sched, &wakeup_event, machine, event, sample); |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 1372 | |
| 1373 | return err; |
Frederic Weisbecker | 419ab0d | 2009-09-12 03:59:01 +0200 | [diff] [blame] | 1374 | } |
| 1375 | |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 1376 | static int |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1377 | map_switch_event(struct perf_sched *sched, |
| 1378 | struct trace_switch_event *switch_event, |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 1379 | struct machine *machine, |
Irina Tirdea | 1d037ca | 2012-09-11 01:15:03 +0300 | [diff] [blame] | 1380 | struct event_format *event __maybe_unused, |
Arnaldo Carvalho de Melo | 7f7f8d0 | 2012-08-07 11:33:42 -0300 | [diff] [blame] | 1381 | struct perf_sample *sample) |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1382 | { |
Irina Tirdea | 1d037ca | 2012-09-11 01:15:03 +0300 | [diff] [blame] | 1383 | struct thread *sched_out __maybe_unused, *sched_in; |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1384 | int new_shortname; |
Arnaldo Carvalho de Melo | 7f7f8d0 | 2012-08-07 11:33:42 -0300 | [diff] [blame] | 1385 | u64 timestamp0, timestamp = sample->time; |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1386 | s64 delta; |
Arnaldo Carvalho de Melo | 7f7f8d0 | 2012-08-07 11:33:42 -0300 | [diff] [blame] | 1387 | int cpu, this_cpu = sample->cpu; |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1388 | |
| 1389 | BUG_ON(this_cpu >= MAX_CPUS || this_cpu < 0); |
| 1390 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1391 | if (this_cpu > sched->max_cpu) |
| 1392 | sched->max_cpu = this_cpu; |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1393 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1394 | timestamp0 = sched->cpu_last_switched[this_cpu]; |
| 1395 | sched->cpu_last_switched[this_cpu] = timestamp; |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1396 | if (timestamp0) |
| 1397 | delta = timestamp - timestamp0; |
| 1398 | else |
| 1399 | delta = 0; |
| 1400 | |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 1401 | if (delta < 0) { |
| 1402 | pr_debug("hm, delta: %" PRIu64 " < 0 ?\n", delta); |
| 1403 | return -1; |
| 1404 | } |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1405 | |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 1406 | sched_out = machine__findnew_thread(machine, switch_event->prev_pid); |
| 1407 | sched_in = machine__findnew_thread(machine, switch_event->next_pid); |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1408 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1409 | sched->curr_thread[this_cpu] = sched_in; |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1410 | |
| 1411 | printf(" "); |
| 1412 | |
| 1413 | new_shortname = 0; |
| 1414 | if (!sched_in->shortname[0]) { |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1415 | sched_in->shortname[0] = sched->next_shortname1; |
| 1416 | sched_in->shortname[1] = sched->next_shortname2; |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1417 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1418 | if (sched->next_shortname1 < 'Z') { |
| 1419 | sched->next_shortname1++; |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1420 | } else { |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1421 | sched->next_shortname1='A'; |
| 1422 | if (sched->next_shortname2 < '9') { |
| 1423 | sched->next_shortname2++; |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1424 | } else { |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1425 | sched->next_shortname2='0'; |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1426 | } |
| 1427 | } |
| 1428 | new_shortname = 1; |
| 1429 | } |
| 1430 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1431 | for (cpu = 0; cpu <= sched->max_cpu; cpu++) { |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1432 | if (cpu != this_cpu) |
| 1433 | printf(" "); |
| 1434 | else |
| 1435 | printf("*"); |
| 1436 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1437 | if (sched->curr_thread[cpu]) { |
| 1438 | if (sched->curr_thread[cpu]->pid) |
| 1439 | printf("%2s ", sched->curr_thread[cpu]->shortname); |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1440 | else |
| 1441 | printf(". "); |
| 1442 | } else |
| 1443 | printf(" "); |
| 1444 | } |
| 1445 | |
| 1446 | printf(" %12.6f secs ", (double)timestamp/1e9); |
| 1447 | if (new_shortname) { |
| 1448 | printf("%s => %s:%d\n", |
| 1449 | sched_in->shortname, sched_in->comm, sched_in->pid); |
| 1450 | } else { |
| 1451 | printf("\n"); |
| 1452 | } |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 1453 | |
| 1454 | return 0; |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1455 | } |
| 1456 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1457 | static int process_sched_switch_event(struct perf_tool *tool, |
Irina Tirdea | 1d037ca | 2012-09-11 01:15:03 +0300 | [diff] [blame] | 1458 | struct event_format *event, |
| 1459 | struct perf_sample *sample, |
Arnaldo Carvalho de Melo | 4218e67 | 2012-09-11 13:18:47 -0300 | [diff] [blame] | 1460 | struct machine *machine) |
Frederic Weisbecker | 419ab0d | 2009-09-12 03:59:01 +0200 | [diff] [blame] | 1461 | { |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1462 | struct perf_sched *sched = container_of(tool, struct perf_sched, tool); |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 1463 | int this_cpu = sample->cpu, err = 0; |
Arnaldo Carvalho de Melo | ee29be6 | 2011-11-28 17:57:40 -0200 | [diff] [blame] | 1464 | void *data = sample->raw_data; |
Frederic Weisbecker | 419ab0d | 2009-09-12 03:59:01 +0200 | [diff] [blame] | 1465 | struct trace_switch_event switch_event; |
| 1466 | |
Xiao Guangrong | f48f669 | 2009-12-07 13:04:04 +0800 | [diff] [blame] | 1467 | FILL_COMMON_FIELDS(switch_event, event, data); |
Frederic Weisbecker | 419ab0d | 2009-09-12 03:59:01 +0200 | [diff] [blame] | 1468 | |
Xiao Guangrong | f48f669 | 2009-12-07 13:04:04 +0800 | [diff] [blame] | 1469 | FILL_ARRAY(switch_event, prev_comm, event, data); |
| 1470 | FILL_FIELD(switch_event, prev_pid, event, data); |
| 1471 | FILL_FIELD(switch_event, prev_prio, event, data); |
| 1472 | FILL_FIELD(switch_event, prev_state, event, data); |
| 1473 | FILL_ARRAY(switch_event, next_comm, event, data); |
| 1474 | FILL_FIELD(switch_event, next_pid, event, data); |
| 1475 | FILL_FIELD(switch_event, next_prio, event, data); |
Frederic Weisbecker | 419ab0d | 2009-09-12 03:59:01 +0200 | [diff] [blame] | 1476 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1477 | if (sched->curr_pid[this_cpu] != (u32)-1) { |
Ingo Molnar | c8a3775 | 2009-09-16 14:07:00 +0200 | [diff] [blame] | 1478 | /* |
| 1479 | * Are we trying to switch away a PID that is |
| 1480 | * not current? |
| 1481 | */ |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1482 | if (sched->curr_pid[this_cpu] != switch_event.prev_pid) |
| 1483 | sched->nr_context_switch_bugs++; |
Ingo Molnar | c8a3775 | 2009-09-16 14:07:00 +0200 | [diff] [blame] | 1484 | } |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1485 | if (sched->tp_handler->switch_event) |
| 1486 | err = sched->tp_handler->switch_event(sched, &switch_event, machine, event, sample); |
Ingo Molnar | c8a3775 | 2009-09-16 14:07:00 +0200 | [diff] [blame] | 1487 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1488 | sched->curr_pid[this_cpu] = switch_event.next_pid; |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 1489 | return err; |
Frederic Weisbecker | 419ab0d | 2009-09-12 03:59:01 +0200 | [diff] [blame] | 1490 | } |
| 1491 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1492 | static int process_sched_runtime_event(struct perf_tool *tool, |
Irina Tirdea | 1d037ca | 2012-09-11 01:15:03 +0300 | [diff] [blame] | 1493 | struct event_format *event, |
| 1494 | struct perf_sample *sample, |
Arnaldo Carvalho de Melo | 4218e67 | 2012-09-11 13:18:47 -0300 | [diff] [blame] | 1495 | struct machine *machine) |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1496 | { |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1497 | struct perf_sched *sched = container_of(tool, struct perf_sched, tool); |
Arnaldo Carvalho de Melo | ee29be6 | 2011-11-28 17:57:40 -0200 | [diff] [blame] | 1498 | void *data = sample->raw_data; |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1499 | struct trace_runtime_event runtime_event; |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 1500 | int err = 0; |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1501 | |
Xiao Guangrong | f48f669 | 2009-12-07 13:04:04 +0800 | [diff] [blame] | 1502 | FILL_ARRAY(runtime_event, comm, event, data); |
| 1503 | FILL_FIELD(runtime_event, pid, event, data); |
| 1504 | FILL_FIELD(runtime_event, runtime, event, data); |
| 1505 | FILL_FIELD(runtime_event, vruntime, event, data); |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1506 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1507 | if (sched->tp_handler->runtime_event) |
| 1508 | err = sched->tp_handler->runtime_event(sched, &runtime_event, machine, sample); |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 1509 | |
| 1510 | return err; |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1511 | } |
| 1512 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1513 | static int process_sched_fork_event(struct perf_tool *tool, |
Irina Tirdea | 1d037ca | 2012-09-11 01:15:03 +0300 | [diff] [blame] | 1514 | struct event_format *event, |
| 1515 | struct perf_sample *sample, |
Arnaldo Carvalho de Melo | 4218e67 | 2012-09-11 13:18:47 -0300 | [diff] [blame] | 1516 | struct machine *machine __maybe_unused) |
Ingo Molnar | fbf9482 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1517 | { |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1518 | struct perf_sched *sched = container_of(tool, struct perf_sched, tool); |
Arnaldo Carvalho de Melo | ee29be6 | 2011-11-28 17:57:40 -0200 | [diff] [blame] | 1519 | void *data = sample->raw_data; |
Frederic Weisbecker | 4653881 | 2009-09-12 02:43:45 +0200 | [diff] [blame] | 1520 | struct trace_fork_event fork_event; |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 1521 | int err = 0; |
Frederic Weisbecker | 4653881 | 2009-09-12 02:43:45 +0200 | [diff] [blame] | 1522 | |
Xiao Guangrong | f48f669 | 2009-12-07 13:04:04 +0800 | [diff] [blame] | 1523 | FILL_COMMON_FIELDS(fork_event, event, data); |
Frederic Weisbecker | 4653881 | 2009-09-12 02:43:45 +0200 | [diff] [blame] | 1524 | |
Xiao Guangrong | f48f669 | 2009-12-07 13:04:04 +0800 | [diff] [blame] | 1525 | FILL_ARRAY(fork_event, parent_comm, event, data); |
| 1526 | FILL_FIELD(fork_event, parent_pid, event, data); |
| 1527 | FILL_ARRAY(fork_event, child_comm, event, data); |
| 1528 | FILL_FIELD(fork_event, child_pid, event, data); |
Frederic Weisbecker | 4653881 | 2009-09-12 02:43:45 +0200 | [diff] [blame] | 1529 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1530 | if (sched->tp_handler->fork_event) |
| 1531 | err = sched->tp_handler->fork_event(sched, &fork_event, event); |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 1532 | |
| 1533 | return err; |
Ingo Molnar | fbf9482 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1534 | } |
| 1535 | |
Irina Tirdea | 1d037ca | 2012-09-11 01:15:03 +0300 | [diff] [blame] | 1536 | static int process_sched_exit_event(struct perf_tool *tool __maybe_unused, |
| 1537 | struct event_format *event, |
| 1538 | struct perf_sample *sample __maybe_unused, |
Arnaldo Carvalho de Melo | 4218e67 | 2012-09-11 13:18:47 -0300 | [diff] [blame] | 1539 | struct machine *machine __maybe_unused) |
Ingo Molnar | fbf9482 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1540 | { |
Ingo Molnar | ad236fd | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1541 | if (verbose) |
| 1542 | printf("sched_exit event %p\n", event); |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 1543 | |
| 1544 | return 0; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1545 | } |
| 1546 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1547 | static int process_sched_migrate_task_event(struct perf_tool *tool, |
Irina Tirdea | 1d037ca | 2012-09-11 01:15:03 +0300 | [diff] [blame] | 1548 | struct event_format *event, |
| 1549 | struct perf_sample *sample, |
Arnaldo Carvalho de Melo | 4218e67 | 2012-09-11 13:18:47 -0300 | [diff] [blame] | 1550 | struct machine *machine) |
Mike Galbraith | 55ffb7a | 2009-10-10 14:46:04 +0200 | [diff] [blame] | 1551 | { |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1552 | struct perf_sched *sched = container_of(tool, struct perf_sched, tool); |
Arnaldo Carvalho de Melo | ee29be6 | 2011-11-28 17:57:40 -0200 | [diff] [blame] | 1553 | void *data = sample->raw_data; |
Mike Galbraith | 55ffb7a | 2009-10-10 14:46:04 +0200 | [diff] [blame] | 1554 | struct trace_migrate_task_event migrate_task_event; |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 1555 | int err = 0; |
Mike Galbraith | 55ffb7a | 2009-10-10 14:46:04 +0200 | [diff] [blame] | 1556 | |
Xiao Guangrong | f48f669 | 2009-12-07 13:04:04 +0800 | [diff] [blame] | 1557 | FILL_COMMON_FIELDS(migrate_task_event, event, data); |
Mike Galbraith | 55ffb7a | 2009-10-10 14:46:04 +0200 | [diff] [blame] | 1558 | |
Xiao Guangrong | f48f669 | 2009-12-07 13:04:04 +0800 | [diff] [blame] | 1559 | FILL_ARRAY(migrate_task_event, comm, event, data); |
| 1560 | FILL_FIELD(migrate_task_event, pid, event, data); |
| 1561 | FILL_FIELD(migrate_task_event, prio, event, data); |
| 1562 | FILL_FIELD(migrate_task_event, cpu, event, data); |
Mike Galbraith | 55ffb7a | 2009-10-10 14:46:04 +0200 | [diff] [blame] | 1563 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1564 | if (sched->tp_handler->migrate_task_event) |
| 1565 | err = sched->tp_handler->migrate_task_event(sched, &migrate_task_event, machine, sample); |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 1566 | |
| 1567 | return err; |
Mike Galbraith | 55ffb7a | 2009-10-10 14:46:04 +0200 | [diff] [blame] | 1568 | } |
| 1569 | |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 1570 | typedef int (*tracepoint_handler)(struct perf_tool *tool, |
| 1571 | struct event_format *tp_format, |
| 1572 | struct perf_sample *sample, |
Arnaldo Carvalho de Melo | 4218e67 | 2012-09-11 13:18:47 -0300 | [diff] [blame] | 1573 | struct machine *machine); |
Arnaldo Carvalho de Melo | ee29be6 | 2011-11-28 17:57:40 -0200 | [diff] [blame] | 1574 | |
Irina Tirdea | 1d037ca | 2012-09-11 01:15:03 +0300 | [diff] [blame] | 1575 | static int perf_sched__process_tracepoint_sample(struct perf_tool *tool __maybe_unused, |
| 1576 | union perf_event *event __maybe_unused, |
Arnaldo Carvalho de Melo | ee29be6 | 2011-11-28 17:57:40 -0200 | [diff] [blame] | 1577 | struct perf_sample *sample, |
| 1578 | struct perf_evsel *evsel, |
| 1579 | struct machine *machine) |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1580 | { |
Arnaldo Carvalho de Melo | ee29be6 | 2011-11-28 17:57:40 -0200 | [diff] [blame] | 1581 | struct thread *thread = machine__findnew_thread(machine, sample->pid); |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 1582 | int err = 0; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1583 | |
Ingo Molnar | 0a02ad9 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1584 | if (thread == NULL) { |
Arnaldo Carvalho de Melo | ee29be6 | 2011-11-28 17:57:40 -0200 | [diff] [blame] | 1585 | pr_debug("problem processing %s event, skipping it.\n", |
Arnaldo Carvalho de Melo | 22c8b84 | 2012-06-12 13:55:13 -0300 | [diff] [blame] | 1586 | perf_evsel__name(evsel)); |
Ingo Molnar | 0a02ad9 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1587 | return -1; |
| 1588 | } |
| 1589 | |
Arnaldo Carvalho de Melo | ee29be6 | 2011-11-28 17:57:40 -0200 | [diff] [blame] | 1590 | evsel->hists.stats.total_period += sample->period; |
| 1591 | hists__inc_nr_events(&evsel->hists, PERF_RECORD_SAMPLE); |
Julia Lawall | f39cdf2 | 2009-10-17 08:43:17 +0200 | [diff] [blame] | 1592 | |
Arnaldo Carvalho de Melo | ee29be6 | 2011-11-28 17:57:40 -0200 | [diff] [blame] | 1593 | if (evsel->handler.func != NULL) { |
| 1594 | tracepoint_handler f = evsel->handler.func; |
Arnaldo Carvalho de Melo | 4218e67 | 2012-09-11 13:18:47 -0300 | [diff] [blame] | 1595 | err = f(tool, evsel->tp_format, sample, machine); |
Arnaldo Carvalho de Melo | ee29be6 | 2011-11-28 17:57:40 -0200 | [diff] [blame] | 1596 | } |
Ingo Molnar | 0a02ad9 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1597 | |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 1598 | return err; |
Ingo Molnar | 0a02ad9 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1599 | } |
| 1600 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1601 | static int perf_sched__read_events(struct perf_sched *sched, bool destroy, |
| 1602 | struct perf_session **psession) |
Ingo Molnar | 0a02ad9 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1603 | { |
Arnaldo Carvalho de Melo | ee29be6 | 2011-11-28 17:57:40 -0200 | [diff] [blame] | 1604 | const struct perf_evsel_str_handler handlers[] = { |
| 1605 | { "sched:sched_switch", process_sched_switch_event, }, |
| 1606 | { "sched:sched_stat_runtime", process_sched_runtime_event, }, |
| 1607 | { "sched:sched_wakeup", process_sched_wakeup_event, }, |
| 1608 | { "sched:sched_wakeup_new", process_sched_wakeup_event, }, |
| 1609 | { "sched:sched_process_fork", process_sched_fork_event, }, |
| 1610 | { "sched:sched_process_exit", process_sched_exit_event, }, |
| 1611 | { "sched:sched_migrate_task", process_sched_migrate_task_event, }, |
| 1612 | }; |
Arnaldo Carvalho de Melo | da37896 | 2012-06-27 13:08:42 -0300 | [diff] [blame] | 1613 | struct perf_session *session; |
| 1614 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1615 | session = perf_session__new(sched->input_name, O_RDONLY, 0, false, &sched->tool); |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 1616 | if (session == NULL) { |
| 1617 | pr_debug("No Memory for session\n"); |
| 1618 | return -1; |
| 1619 | } |
Arnaldo Carvalho de Melo | 94c744b | 2009-12-11 21:24:02 -0200 | [diff] [blame] | 1620 | |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 1621 | if (perf_session__set_tracepoints_handlers(session, handlers)) |
| 1622 | goto out_delete; |
Arnaldo Carvalho de Melo | ee29be6 | 2011-11-28 17:57:40 -0200 | [diff] [blame] | 1623 | |
Arnaldo Carvalho de Melo | cee75ac | 2010-05-14 13:16:55 -0300 | [diff] [blame] | 1624 | if (perf_session__has_traces(session, "record -R")) { |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1625 | int err = perf_session__process_events(session, &sched->tool); |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 1626 | if (err) { |
| 1627 | pr_err("Failed to process events, error %d", err); |
| 1628 | goto out_delete; |
| 1629 | } |
Jiri Olsa | 4c09baf | 2011-08-08 23:03:34 +0200 | [diff] [blame] | 1630 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1631 | sched->nr_events = session->hists.stats.nr_events[0]; |
| 1632 | sched->nr_lost_events = session->hists.stats.total_lost; |
| 1633 | sched->nr_lost_chunks = session->hists.stats.nr_events[PERF_RECORD_LOST]; |
Arnaldo Carvalho de Melo | cee75ac | 2010-05-14 13:16:55 -0300 | [diff] [blame] | 1634 | } |
Arnaldo Carvalho de Melo | d549c769 | 2009-12-27 21:37:02 -0200 | [diff] [blame] | 1635 | |
Jiri Olsa | 4c09baf | 2011-08-08 23:03:34 +0200 | [diff] [blame] | 1636 | if (destroy) |
| 1637 | perf_session__delete(session); |
| 1638 | |
| 1639 | if (psession) |
| 1640 | *psession = session; |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 1641 | |
| 1642 | return 0; |
| 1643 | |
| 1644 | out_delete: |
| 1645 | perf_session__delete(session); |
| 1646 | return -1; |
Ingo Molnar | 0a02ad9 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1647 | } |
| 1648 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1649 | static void print_bad_events(struct perf_sched *sched) |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1650 | { |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1651 | if (sched->nr_unordered_timestamps && sched->nr_timestamps) { |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1652 | printf(" INFO: %.3f%% unordered timestamps (%ld out of %ld)\n", |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1653 | (double)sched->nr_unordered_timestamps/(double)sched->nr_timestamps*100.0, |
| 1654 | sched->nr_unordered_timestamps, sched->nr_timestamps); |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1655 | } |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1656 | if (sched->nr_lost_events && sched->nr_events) { |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1657 | printf(" INFO: %.3f%% lost events (%ld out of %ld, in %ld chunks)\n", |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1658 | (double)sched->nr_lost_events/(double)sched->nr_events * 100.0, |
| 1659 | sched->nr_lost_events, sched->nr_events, sched->nr_lost_chunks); |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1660 | } |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1661 | if (sched->nr_state_machine_bugs && sched->nr_timestamps) { |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1662 | printf(" INFO: %.3f%% state machine bugs (%ld out of %ld)", |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1663 | (double)sched->nr_state_machine_bugs/(double)sched->nr_timestamps*100.0, |
| 1664 | sched->nr_state_machine_bugs, sched->nr_timestamps); |
| 1665 | if (sched->nr_lost_events) |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1666 | printf(" (due to lost events?)"); |
| 1667 | printf("\n"); |
| 1668 | } |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1669 | if (sched->nr_context_switch_bugs && sched->nr_timestamps) { |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1670 | printf(" INFO: %.3f%% context switch bugs (%ld out of %ld)", |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1671 | (double)sched->nr_context_switch_bugs/(double)sched->nr_timestamps*100.0, |
| 1672 | sched->nr_context_switch_bugs, sched->nr_timestamps); |
| 1673 | if (sched->nr_lost_events) |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1674 | printf(" (due to lost events?)"); |
| 1675 | printf("\n"); |
| 1676 | } |
| 1677 | } |
| 1678 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1679 | static int perf_sched__lat(struct perf_sched *sched) |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1680 | { |
| 1681 | struct rb_node *next; |
Jiri Olsa | 4c09baf | 2011-08-08 23:03:34 +0200 | [diff] [blame] | 1682 | struct perf_session *session; |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1683 | |
| 1684 | setup_pager(); |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1685 | if (perf_sched__read_events(sched, false, &session)) |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 1686 | return -1; |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1687 | perf_sched__sort_lat(sched); |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1688 | |
Frederic Weisbecker | 3786310a | 2009-12-09 21:40:08 +0100 | [diff] [blame] | 1689 | printf("\n ---------------------------------------------------------------------------------------------------------------\n"); |
| 1690 | printf(" Task | Runtime ms | Switches | Average delay ms | Maximum delay ms | Maximum delay at |\n"); |
| 1691 | printf(" ---------------------------------------------------------------------------------------------------------------\n"); |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1692 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1693 | next = rb_first(&sched->sorted_atom_root); |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1694 | |
| 1695 | while (next) { |
| 1696 | struct work_atoms *work_list; |
| 1697 | |
| 1698 | work_list = rb_entry(next, struct work_atoms, node); |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1699 | output_lat_thread(sched, work_list); |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1700 | next = rb_next(next); |
| 1701 | } |
| 1702 | |
| 1703 | printf(" -----------------------------------------------------------------------------------------\n"); |
Arnaldo Carvalho de Melo | 9486aa3 | 2011-01-22 20:37:02 -0200 | [diff] [blame] | 1704 | printf(" TOTAL: |%11.3f ms |%9" PRIu64 " |\n", |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1705 | (double)sched->all_runtime / 1e6, sched->all_count); |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1706 | |
| 1707 | printf(" ---------------------------------------------------\n"); |
| 1708 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1709 | print_bad_events(sched); |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1710 | printf("\n"); |
| 1711 | |
Jiri Olsa | 4c09baf | 2011-08-08 23:03:34 +0200 | [diff] [blame] | 1712 | perf_session__delete(session); |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 1713 | return 0; |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1714 | } |
| 1715 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1716 | static int perf_sched__map(struct perf_sched *sched) |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1717 | { |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1718 | sched->max_cpu = sysconf(_SC_NPROCESSORS_CONF); |
Ingo Molnar | 40749d0 | 2009-09-17 18:24:55 +0200 | [diff] [blame] | 1719 | |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1720 | setup_pager(); |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1721 | if (perf_sched__read_events(sched, true, NULL)) |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 1722 | return -1; |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1723 | print_bad_events(sched); |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 1724 | return 0; |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1725 | } |
| 1726 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1727 | static int perf_sched__replay(struct perf_sched *sched) |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1728 | { |
| 1729 | unsigned long i; |
| 1730 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1731 | calibrate_run_measurement_overhead(sched); |
| 1732 | calibrate_sleep_measurement_overhead(sched); |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1733 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1734 | test_calibrations(sched); |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1735 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1736 | if (perf_sched__read_events(sched, true, NULL)) |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 1737 | return -1; |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1738 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1739 | printf("nr_run_events: %ld\n", sched->nr_run_events); |
| 1740 | printf("nr_sleep_events: %ld\n", sched->nr_sleep_events); |
| 1741 | printf("nr_wakeup_events: %ld\n", sched->nr_wakeup_events); |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1742 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1743 | if (sched->targetless_wakeups) |
| 1744 | printf("target-less wakeups: %ld\n", sched->targetless_wakeups); |
| 1745 | if (sched->multitarget_wakeups) |
| 1746 | printf("multi-target wakeups: %ld\n", sched->multitarget_wakeups); |
| 1747 | if (sched->nr_run_events_optimized) |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1748 | printf("run atoms optimized: %ld\n", |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1749 | sched->nr_run_events_optimized); |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1750 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1751 | print_task_traces(sched); |
| 1752 | add_cross_task_wakeups(sched); |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1753 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1754 | create_tasks(sched); |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1755 | printf("------------------------------------------------------------\n"); |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1756 | for (i = 0; i < sched->replay_repeat; i++) |
| 1757 | run_one_test(sched); |
Arnaldo Carvalho de Melo | a116e05 | 2012-09-08 22:53:06 -0300 | [diff] [blame] | 1758 | |
| 1759 | return 0; |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1760 | } |
| 1761 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1762 | static void setup_sorting(struct perf_sched *sched, const struct option *options, |
| 1763 | const char * const usage_msg[]) |
Frederic Weisbecker | daa1d7a | 2009-09-13 03:36:29 +0200 | [diff] [blame] | 1764 | { |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1765 | char *tmp, *tok, *str = strdup(sched->sort_order); |
Frederic Weisbecker | daa1d7a | 2009-09-13 03:36:29 +0200 | [diff] [blame] | 1766 | |
| 1767 | for (tok = strtok_r(str, ", ", &tmp); |
| 1768 | tok; tok = strtok_r(NULL, ", ", &tmp)) { |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1769 | if (sort_dimension__add(tok, &sched->sort_list) < 0) { |
Frederic Weisbecker | daa1d7a | 2009-09-13 03:36:29 +0200 | [diff] [blame] | 1770 | error("Unknown --sort key: `%s'", tok); |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1771 | usage_with_options(usage_msg, options); |
Frederic Weisbecker | daa1d7a | 2009-09-13 03:36:29 +0200 | [diff] [blame] | 1772 | } |
| 1773 | } |
| 1774 | |
| 1775 | free(str); |
| 1776 | |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1777 | sort_dimension__add("pid", &sched->cmp_pid); |
Frederic Weisbecker | daa1d7a | 2009-09-13 03:36:29 +0200 | [diff] [blame] | 1778 | } |
| 1779 | |
Ingo Molnar | 1fc35b2 | 2009-09-13 09:44:29 +0200 | [diff] [blame] | 1780 | static int __cmd_record(int argc, const char **argv) |
| 1781 | { |
| 1782 | unsigned int rec_argc, i, j; |
| 1783 | const char **rec_argv; |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1784 | const char * const record_args[] = { |
| 1785 | "record", |
| 1786 | "-a", |
| 1787 | "-R", |
| 1788 | "-f", |
| 1789 | "-m", "1024", |
| 1790 | "-c", "1", |
| 1791 | "-e", "sched:sched_switch", |
| 1792 | "-e", "sched:sched_stat_wait", |
| 1793 | "-e", "sched:sched_stat_sleep", |
| 1794 | "-e", "sched:sched_stat_iowait", |
| 1795 | "-e", "sched:sched_stat_runtime", |
| 1796 | "-e", "sched:sched_process_exit", |
| 1797 | "-e", "sched:sched_process_fork", |
| 1798 | "-e", "sched:sched_wakeup", |
| 1799 | "-e", "sched:sched_migrate_task", |
| 1800 | }; |
Ingo Molnar | 1fc35b2 | 2009-09-13 09:44:29 +0200 | [diff] [blame] | 1801 | |
| 1802 | rec_argc = ARRAY_SIZE(record_args) + argc - 1; |
| 1803 | rec_argv = calloc(rec_argc + 1, sizeof(char *)); |
| 1804 | |
Arnaldo Carvalho de Melo | e462dc5 | 2011-01-10 10:48:47 -0200 | [diff] [blame] | 1805 | if (rec_argv == NULL) |
Chris Samuel | ce47dc5 | 2010-11-13 13:35:06 +1100 | [diff] [blame] | 1806 | return -ENOMEM; |
| 1807 | |
Ingo Molnar | 1fc35b2 | 2009-09-13 09:44:29 +0200 | [diff] [blame] | 1808 | for (i = 0; i < ARRAY_SIZE(record_args); i++) |
| 1809 | rec_argv[i] = strdup(record_args[i]); |
| 1810 | |
| 1811 | for (j = 1; j < (unsigned int)argc; j++, i++) |
| 1812 | rec_argv[i] = argv[j]; |
| 1813 | |
| 1814 | BUG_ON(i != rec_argc); |
| 1815 | |
| 1816 | return cmd_record(i, rec_argv, NULL); |
| 1817 | } |
| 1818 | |
Irina Tirdea | 1d037ca | 2012-09-11 01:15:03 +0300 | [diff] [blame] | 1819 | int cmd_sched(int argc, const char **argv, const char *prefix __maybe_unused) |
Ingo Molnar | 0a02ad9 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1820 | { |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1821 | const char default_sort_order[] = "avg, max, switch, runtime"; |
| 1822 | struct perf_sched sched = { |
| 1823 | .tool = { |
| 1824 | .sample = perf_sched__process_tracepoint_sample, |
| 1825 | .comm = perf_event__process_comm, |
| 1826 | .lost = perf_event__process_lost, |
| 1827 | .fork = perf_event__process_task, |
| 1828 | .ordered_samples = true, |
| 1829 | }, |
| 1830 | .cmp_pid = LIST_HEAD_INIT(sched.cmp_pid), |
| 1831 | .sort_list = LIST_HEAD_INIT(sched.sort_list), |
| 1832 | .start_work_mutex = PTHREAD_MUTEX_INITIALIZER, |
| 1833 | .work_done_wait_mutex = PTHREAD_MUTEX_INITIALIZER, |
| 1834 | .curr_pid = { [0 ... MAX_CPUS - 1] = -1 }, |
| 1835 | .sort_order = default_sort_order, |
| 1836 | .replay_repeat = 10, |
| 1837 | .profile_cpu = -1, |
| 1838 | .next_shortname1 = 'A', |
| 1839 | .next_shortname2 = '0', |
| 1840 | }; |
| 1841 | const struct option latency_options[] = { |
| 1842 | OPT_STRING('s', "sort", &sched.sort_order, "key[,key2...]", |
| 1843 | "sort by key(s): runtime, switch, avg, max"), |
| 1844 | OPT_INCR('v', "verbose", &verbose, |
| 1845 | "be more verbose (show symbol address, etc)"), |
| 1846 | OPT_INTEGER('C', "CPU", &sched.profile_cpu, |
| 1847 | "CPU to profile on"), |
| 1848 | OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, |
| 1849 | "dump raw trace in ASCII"), |
| 1850 | OPT_END() |
| 1851 | }; |
| 1852 | const struct option replay_options[] = { |
| 1853 | OPT_UINTEGER('r', "repeat", &sched.replay_repeat, |
| 1854 | "repeat the workload replay N times (-1: infinite)"), |
| 1855 | OPT_INCR('v', "verbose", &verbose, |
| 1856 | "be more verbose (show symbol address, etc)"), |
| 1857 | OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, |
| 1858 | "dump raw trace in ASCII"), |
| 1859 | OPT_END() |
| 1860 | }; |
| 1861 | const struct option sched_options[] = { |
| 1862 | OPT_STRING('i', "input", &sched.input_name, "file", |
| 1863 | "input file name"), |
| 1864 | OPT_INCR('v', "verbose", &verbose, |
| 1865 | "be more verbose (show symbol address, etc)"), |
| 1866 | OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, |
| 1867 | "dump raw trace in ASCII"), |
| 1868 | OPT_END() |
| 1869 | }; |
| 1870 | const char * const latency_usage[] = { |
| 1871 | "perf sched latency [<options>]", |
| 1872 | NULL |
| 1873 | }; |
| 1874 | const char * const replay_usage[] = { |
| 1875 | "perf sched replay [<options>]", |
| 1876 | NULL |
| 1877 | }; |
| 1878 | const char * const sched_usage[] = { |
| 1879 | "perf sched [<options>] {record|latency|map|replay|script}", |
| 1880 | NULL |
| 1881 | }; |
| 1882 | struct trace_sched_handler lat_ops = { |
| 1883 | .wakeup_event = latency_wakeup_event, |
| 1884 | .switch_event = latency_switch_event, |
| 1885 | .runtime_event = latency_runtime_event, |
| 1886 | .fork_event = latency_fork_event, |
| 1887 | .migrate_task_event = latency_migrate_task_event, |
| 1888 | }; |
| 1889 | struct trace_sched_handler map_ops = { |
| 1890 | .switch_event = map_switch_event, |
| 1891 | }; |
| 1892 | struct trace_sched_handler replay_ops = { |
| 1893 | .wakeup_event = replay_wakeup_event, |
| 1894 | .switch_event = replay_switch_event, |
| 1895 | .fork_event = replay_fork_event, |
| 1896 | }; |
| 1897 | |
Ingo Molnar | f2858d8 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1898 | argc = parse_options(argc, argv, sched_options, sched_usage, |
| 1899 | PARSE_OPT_STOP_AT_NON_OPTION); |
| 1900 | if (!argc) |
| 1901 | usage_with_options(sched_usage, sched_options); |
| 1902 | |
Xiao Guangrong | c0777c5 | 2009-12-07 12:04:49 +0800 | [diff] [blame] | 1903 | /* |
Ingo Molnar | 133dc4c | 2010-11-16 18:45:39 +0100 | [diff] [blame] | 1904 | * Aliased to 'perf script' for now: |
Xiao Guangrong | c0777c5 | 2009-12-07 12:04:49 +0800 | [diff] [blame] | 1905 | */ |
Ingo Molnar | 133dc4c | 2010-11-16 18:45:39 +0100 | [diff] [blame] | 1906 | if (!strcmp(argv[0], "script")) |
| 1907 | return cmd_script(argc, argv, prefix); |
Xiao Guangrong | c0777c5 | 2009-12-07 12:04:49 +0800 | [diff] [blame] | 1908 | |
Arnaldo Carvalho de Melo | 75be6cf | 2009-12-15 20:04:39 -0200 | [diff] [blame] | 1909 | symbol__init(); |
Ingo Molnar | 1fc35b2 | 2009-09-13 09:44:29 +0200 | [diff] [blame] | 1910 | if (!strncmp(argv[0], "rec", 3)) { |
| 1911 | return __cmd_record(argc, argv); |
| 1912 | } else if (!strncmp(argv[0], "lat", 3)) { |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1913 | sched.tp_handler = &lat_ops; |
Ingo Molnar | f2858d8 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1914 | if (argc > 1) { |
| 1915 | argc = parse_options(argc, argv, latency_options, latency_usage, 0); |
| 1916 | if (argc) |
| 1917 | usage_with_options(latency_usage, latency_options); |
Ingo Molnar | f2858d8 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1918 | } |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1919 | setup_sorting(&sched, latency_options, latency_usage); |
| 1920 | return perf_sched__lat(&sched); |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1921 | } else if (!strcmp(argv[0], "map")) { |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1922 | sched.tp_handler = &map_ops; |
| 1923 | setup_sorting(&sched, latency_options, latency_usage); |
| 1924 | return perf_sched__map(&sched); |
Ingo Molnar | f2858d8 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1925 | } else if (!strncmp(argv[0], "rep", 3)) { |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1926 | sched.tp_handler = &replay_ops; |
Ingo Molnar | f2858d8 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1927 | if (argc) { |
| 1928 | argc = parse_options(argc, argv, replay_options, replay_usage, 0); |
| 1929 | if (argc) |
| 1930 | usage_with_options(replay_usage, replay_options); |
| 1931 | } |
Arnaldo Carvalho de Melo | 0e9b07e | 2012-09-11 17:29:27 -0300 | [diff] [blame^] | 1932 | return perf_sched__replay(&sched); |
Ingo Molnar | f2858d8 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1933 | } else { |
| 1934 | usage_with_options(sched_usage, sched_options); |
Ingo Molnar | 0a02ad9 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1935 | } |
| 1936 | |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1937 | return 0; |
Ingo Molnar | 0a02ad9 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1938 | } |