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" |
| 5 | #include "util/cache.h" |
| 6 | #include "util/symbol.h" |
| 7 | #include "util/thread.h" |
| 8 | #include "util/header.h" |
Arnaldo Carvalho de Melo | 94c744b | 2009-12-11 21:24:02 -0200 | [diff] [blame] | 9 | #include "util/session.h" |
Ingo Molnar | 0a02ad9 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 10 | |
| 11 | #include "util/parse-options.h" |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 12 | #include "util/trace-event.h" |
Ingo Molnar | 0a02ad9 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 13 | |
Ingo Molnar | 0a02ad9 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 14 | #include "util/debug.h" |
| 15 | |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 16 | #include <sys/prctl.h> |
Ingo Molnar | 0a02ad9 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 17 | |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 18 | #include <semaphore.h> |
| 19 | #include <pthread.h> |
| 20 | #include <math.h> |
Frederic Weisbecker | 419ab0d | 2009-09-12 03:59:01 +0200 | [diff] [blame] | 21 | |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 22 | static char const *input_name = "perf.data"; |
Ingo Molnar | 0a02ad9 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 23 | |
Frederic Weisbecker | daa1d7a | 2009-09-13 03:36:29 +0200 | [diff] [blame] | 24 | static char default_sort_order[] = "avg, max, switch, runtime"; |
Arnaldo Carvalho de Melo | edb7c60 | 2010-05-17 16:22:41 -0300 | [diff] [blame^] | 25 | static const char *sort_order = default_sort_order; |
Frederic Weisbecker | daa1d7a | 2009-09-13 03:36:29 +0200 | [diff] [blame] | 26 | |
Mike Galbraith | 55ffb7a | 2009-10-10 14:46:04 +0200 | [diff] [blame] | 27 | static int profile_cpu = -1; |
| 28 | |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 29 | #define PR_SET_NAME 15 /* Set process name */ |
| 30 | #define MAX_CPUS 4096 |
Ingo Molnar | 0a02ad9 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 31 | |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 32 | static u64 run_measurement_overhead; |
| 33 | static u64 sleep_measurement_overhead; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 34 | |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 35 | #define COMM_LEN 20 |
| 36 | #define SYM_LEN 129 |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 37 | |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 38 | #define MAX_PID 65536 |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 39 | |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 40 | static unsigned long nr_tasks; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 41 | |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 42 | struct sched_atom; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 43 | |
| 44 | struct task_desc { |
| 45 | unsigned long nr; |
| 46 | unsigned long pid; |
| 47 | char comm[COMM_LEN]; |
| 48 | |
| 49 | unsigned long nr_events; |
| 50 | unsigned long curr_event; |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 51 | struct sched_atom **atoms; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 52 | |
| 53 | pthread_t thread; |
| 54 | sem_t sleep_sem; |
| 55 | |
| 56 | sem_t ready_for_work; |
| 57 | sem_t work_done_sem; |
| 58 | |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 59 | u64 cpu_usage; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 60 | }; |
| 61 | |
| 62 | enum sched_event_type { |
| 63 | SCHED_EVENT_RUN, |
| 64 | SCHED_EVENT_SLEEP, |
| 65 | SCHED_EVENT_WAKEUP, |
Mike Galbraith | 55ffb7a | 2009-10-10 14:46:04 +0200 | [diff] [blame] | 66 | SCHED_EVENT_MIGRATION, |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 67 | }; |
| 68 | |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 69 | struct sched_atom { |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 70 | enum sched_event_type type; |
Arnaldo Carvalho de Melo | eed05fe | 2010-04-05 12:53:45 -0300 | [diff] [blame] | 71 | int specific_wait; |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 72 | u64 timestamp; |
| 73 | u64 duration; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 74 | unsigned long nr; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 75 | sem_t *wait_sem; |
| 76 | struct task_desc *wakee; |
| 77 | }; |
| 78 | |
| 79 | static struct task_desc *pid_to_task[MAX_PID]; |
| 80 | |
| 81 | static struct task_desc **tasks; |
| 82 | |
| 83 | static pthread_mutex_t start_work_mutex = PTHREAD_MUTEX_INITIALIZER; |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 84 | static u64 start_time; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 85 | |
| 86 | static pthread_mutex_t work_done_wait_mutex = PTHREAD_MUTEX_INITIALIZER; |
| 87 | |
| 88 | static unsigned long nr_run_events; |
| 89 | static unsigned long nr_sleep_events; |
| 90 | static unsigned long nr_wakeup_events; |
| 91 | |
| 92 | static unsigned long nr_sleep_corrections; |
| 93 | static unsigned long nr_run_events_optimized; |
| 94 | |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 95 | static unsigned long targetless_wakeups; |
| 96 | static unsigned long multitarget_wakeups; |
| 97 | |
| 98 | static u64 cpu_usage; |
| 99 | static u64 runavg_cpu_usage; |
| 100 | static u64 parent_cpu_usage; |
| 101 | static u64 runavg_parent_cpu_usage; |
| 102 | |
| 103 | static unsigned long nr_runs; |
| 104 | static u64 sum_runtime; |
| 105 | static u64 sum_fluct; |
| 106 | static u64 run_avg; |
| 107 | |
Arnaldo Carvalho de Melo | 1967936 | 2010-05-17 15:39:16 -0300 | [diff] [blame] | 108 | static unsigned int replay_repeat = 10; |
Ingo Molnar | ea57c4f | 2009-09-13 18:15:54 +0200 | [diff] [blame] | 109 | static unsigned long nr_timestamps; |
Ingo Molnar | dc02bf7 | 2009-09-16 13:45:00 +0200 | [diff] [blame] | 110 | static unsigned long nr_unordered_timestamps; |
| 111 | static unsigned long nr_state_machine_bugs; |
Ingo Molnar | c8a3775 | 2009-09-16 14:07:00 +0200 | [diff] [blame] | 112 | static unsigned long nr_context_switch_bugs; |
Ingo Molnar | dc02bf7 | 2009-09-16 13:45:00 +0200 | [diff] [blame] | 113 | static unsigned long nr_events; |
| 114 | static unsigned long nr_lost_chunks; |
| 115 | static unsigned long nr_lost_events; |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 116 | |
| 117 | #define TASK_STATE_TO_CHAR_STR "RSDTtZX" |
| 118 | |
| 119 | enum thread_state { |
| 120 | THREAD_SLEEPING = 0, |
| 121 | THREAD_WAIT_CPU, |
| 122 | THREAD_SCHED_IN, |
| 123 | THREAD_IGNORE |
| 124 | }; |
| 125 | |
| 126 | struct work_atom { |
| 127 | struct list_head list; |
| 128 | enum thread_state state; |
Frederic Weisbecker | aa1ab9d | 2009-09-14 03:01:12 +0200 | [diff] [blame] | 129 | u64 sched_out_time; |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 130 | u64 wake_up_time; |
| 131 | u64 sched_in_time; |
| 132 | u64 runtime; |
| 133 | }; |
| 134 | |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 135 | struct work_atoms { |
| 136 | struct list_head work_list; |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 137 | struct thread *thread; |
| 138 | struct rb_node node; |
| 139 | u64 max_lat; |
Frederic Weisbecker | 3786310a | 2009-12-09 21:40:08 +0100 | [diff] [blame] | 140 | u64 max_lat_at; |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 141 | u64 total_lat; |
| 142 | u64 nb_atoms; |
| 143 | u64 total_runtime; |
| 144 | }; |
| 145 | |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 146 | typedef int (*sort_fn_t)(struct work_atoms *, struct work_atoms *); |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 147 | |
| 148 | static struct rb_root atom_root, sorted_atom_root; |
| 149 | |
| 150 | static u64 all_runtime; |
| 151 | static u64 all_count; |
| 152 | |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 153 | |
| 154 | static u64 get_nsecs(void) |
| 155 | { |
| 156 | struct timespec ts; |
| 157 | |
| 158 | clock_gettime(CLOCK_MONOTONIC, &ts); |
| 159 | |
| 160 | return ts.tv_sec * 1000000000ULL + ts.tv_nsec; |
| 161 | } |
| 162 | |
| 163 | static void burn_nsecs(u64 nsecs) |
| 164 | { |
| 165 | u64 T0 = get_nsecs(), T1; |
| 166 | |
| 167 | do { |
| 168 | T1 = get_nsecs(); |
| 169 | } while (T1 + run_measurement_overhead < T0 + nsecs); |
| 170 | } |
| 171 | |
| 172 | static void sleep_nsecs(u64 nsecs) |
| 173 | { |
| 174 | struct timespec ts; |
| 175 | |
| 176 | ts.tv_nsec = nsecs % 999999999; |
| 177 | ts.tv_sec = nsecs / 999999999; |
| 178 | |
| 179 | nanosleep(&ts, NULL); |
| 180 | } |
| 181 | |
| 182 | static void calibrate_run_measurement_overhead(void) |
| 183 | { |
| 184 | u64 T0, T1, delta, min_delta = 1000000000ULL; |
| 185 | int i; |
| 186 | |
| 187 | for (i = 0; i < 10; i++) { |
| 188 | T0 = get_nsecs(); |
| 189 | burn_nsecs(0); |
| 190 | T1 = get_nsecs(); |
| 191 | delta = T1-T0; |
| 192 | min_delta = min(min_delta, delta); |
| 193 | } |
| 194 | run_measurement_overhead = min_delta; |
| 195 | |
| 196 | printf("run measurement overhead: %Ld nsecs\n", min_delta); |
| 197 | } |
| 198 | |
| 199 | static void calibrate_sleep_measurement_overhead(void) |
| 200 | { |
| 201 | u64 T0, T1, delta, min_delta = 1000000000ULL; |
| 202 | int i; |
| 203 | |
| 204 | for (i = 0; i < 10; i++) { |
| 205 | T0 = get_nsecs(); |
| 206 | sleep_nsecs(10000); |
| 207 | T1 = get_nsecs(); |
| 208 | delta = T1-T0; |
| 209 | min_delta = min(min_delta, delta); |
| 210 | } |
| 211 | min_delta -= 10000; |
| 212 | sleep_measurement_overhead = min_delta; |
| 213 | |
| 214 | printf("sleep measurement overhead: %Ld nsecs\n", min_delta); |
| 215 | } |
| 216 | |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 217 | static struct sched_atom * |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 218 | get_new_event(struct task_desc *task, u64 timestamp) |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 219 | { |
Arnaldo Carvalho de Melo | 3647948 | 2009-11-24 12:05:16 -0200 | [diff] [blame] | 220 | struct sched_atom *event = zalloc(sizeof(*event)); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 221 | unsigned long idx = task->nr_events; |
| 222 | size_t size; |
| 223 | |
| 224 | event->timestamp = timestamp; |
| 225 | event->nr = idx; |
| 226 | |
| 227 | task->nr_events++; |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 228 | size = sizeof(struct sched_atom *) * task->nr_events; |
| 229 | task->atoms = realloc(task->atoms, size); |
| 230 | BUG_ON(!task->atoms); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 231 | |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 232 | task->atoms[idx] = event; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 233 | |
| 234 | return event; |
| 235 | } |
| 236 | |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 237 | static struct sched_atom *last_event(struct task_desc *task) |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 238 | { |
| 239 | if (!task->nr_events) |
| 240 | return NULL; |
| 241 | |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 242 | return task->atoms[task->nr_events - 1]; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 243 | } |
| 244 | |
| 245 | static void |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 246 | add_sched_event_run(struct task_desc *task, u64 timestamp, u64 duration) |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 247 | { |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 248 | struct sched_atom *event, *curr_event = last_event(task); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 249 | |
| 250 | /* |
Ingo Molnar | fbf9482 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 251 | * optimize an existing RUN event by merging this one |
| 252 | * to it: |
| 253 | */ |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 254 | if (curr_event && curr_event->type == SCHED_EVENT_RUN) { |
| 255 | nr_run_events_optimized++; |
| 256 | curr_event->duration += duration; |
| 257 | return; |
| 258 | } |
| 259 | |
| 260 | event = get_new_event(task, timestamp); |
| 261 | |
| 262 | event->type = SCHED_EVENT_RUN; |
| 263 | event->duration = duration; |
| 264 | |
| 265 | nr_run_events++; |
| 266 | } |
| 267 | |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 268 | static void |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 269 | add_sched_event_wakeup(struct task_desc *task, u64 timestamp, |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 270 | struct task_desc *wakee) |
| 271 | { |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 272 | struct sched_atom *event, *wakee_event; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 273 | |
| 274 | event = get_new_event(task, timestamp); |
| 275 | event->type = SCHED_EVENT_WAKEUP; |
| 276 | event->wakee = wakee; |
| 277 | |
| 278 | wakee_event = last_event(wakee); |
| 279 | if (!wakee_event || wakee_event->type != SCHED_EVENT_SLEEP) { |
| 280 | targetless_wakeups++; |
| 281 | return; |
| 282 | } |
| 283 | if (wakee_event->wait_sem) { |
| 284 | multitarget_wakeups++; |
| 285 | return; |
| 286 | } |
| 287 | |
Arnaldo Carvalho de Melo | 3647948 | 2009-11-24 12:05:16 -0200 | [diff] [blame] | 288 | wakee_event->wait_sem = zalloc(sizeof(*wakee_event->wait_sem)); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 289 | sem_init(wakee_event->wait_sem, 0, 0); |
| 290 | wakee_event->specific_wait = 1; |
| 291 | event->wait_sem = wakee_event->wait_sem; |
| 292 | |
| 293 | nr_wakeup_events++; |
| 294 | } |
| 295 | |
| 296 | static void |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 297 | add_sched_event_sleep(struct task_desc *task, u64 timestamp, |
Ingo Molnar | ad236fd | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 298 | u64 task_state __used) |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 299 | { |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 300 | struct sched_atom *event = get_new_event(task, timestamp); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 301 | |
| 302 | event->type = SCHED_EVENT_SLEEP; |
| 303 | |
| 304 | nr_sleep_events++; |
| 305 | } |
| 306 | |
| 307 | static struct task_desc *register_pid(unsigned long pid, const char *comm) |
| 308 | { |
| 309 | struct task_desc *task; |
| 310 | |
| 311 | BUG_ON(pid >= MAX_PID); |
| 312 | |
| 313 | task = pid_to_task[pid]; |
| 314 | |
| 315 | if (task) |
| 316 | return task; |
| 317 | |
Arnaldo Carvalho de Melo | 3647948 | 2009-11-24 12:05:16 -0200 | [diff] [blame] | 318 | task = zalloc(sizeof(*task)); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 319 | task->pid = pid; |
| 320 | task->nr = nr_tasks; |
| 321 | strcpy(task->comm, comm); |
| 322 | /* |
| 323 | * every task starts in sleeping state - this gets ignored |
| 324 | * if there's no wakeup pointing to this sleep state: |
| 325 | */ |
| 326 | add_sched_event_sleep(task, 0, 0); |
| 327 | |
| 328 | pid_to_task[pid] = task; |
| 329 | nr_tasks++; |
| 330 | tasks = realloc(tasks, nr_tasks*sizeof(struct task_task *)); |
| 331 | BUG_ON(!tasks); |
| 332 | tasks[task->nr] = task; |
| 333 | |
Ingo Molnar | ad236fd | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 334 | if (verbose) |
| 335 | printf("registered task #%ld, PID %ld (%s)\n", nr_tasks, pid, comm); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 336 | |
| 337 | return task; |
| 338 | } |
| 339 | |
| 340 | |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 341 | static void print_task_traces(void) |
| 342 | { |
| 343 | struct task_desc *task; |
| 344 | unsigned long i; |
| 345 | |
| 346 | for (i = 0; i < nr_tasks; i++) { |
| 347 | task = tasks[i]; |
Ingo Molnar | ad236fd | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 348 | printf("task %6ld (%20s:%10ld), nr_events: %ld\n", |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 349 | task->nr, task->comm, task->pid, task->nr_events); |
| 350 | } |
| 351 | } |
| 352 | |
| 353 | static void add_cross_task_wakeups(void) |
| 354 | { |
| 355 | struct task_desc *task1, *task2; |
| 356 | unsigned long i, j; |
| 357 | |
| 358 | for (i = 0; i < nr_tasks; i++) { |
| 359 | task1 = tasks[i]; |
| 360 | j = i + 1; |
| 361 | if (j == nr_tasks) |
| 362 | j = 0; |
| 363 | task2 = tasks[j]; |
| 364 | add_sched_event_wakeup(task1, 0, task2); |
| 365 | } |
| 366 | } |
| 367 | |
| 368 | static void |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 369 | process_sched_event(struct task_desc *this_task __used, struct sched_atom *atom) |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 370 | { |
| 371 | int ret = 0; |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 372 | u64 now; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 373 | long long delta; |
| 374 | |
| 375 | now = get_nsecs(); |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 376 | delta = start_time + atom->timestamp - now; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 377 | |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 378 | switch (atom->type) { |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 379 | case SCHED_EVENT_RUN: |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 380 | burn_nsecs(atom->duration); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 381 | break; |
| 382 | case SCHED_EVENT_SLEEP: |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 383 | if (atom->wait_sem) |
| 384 | ret = sem_wait(atom->wait_sem); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 385 | BUG_ON(ret); |
| 386 | break; |
| 387 | case SCHED_EVENT_WAKEUP: |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 388 | if (atom->wait_sem) |
| 389 | ret = sem_post(atom->wait_sem); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 390 | BUG_ON(ret); |
| 391 | break; |
Mike Galbraith | 55ffb7a | 2009-10-10 14:46:04 +0200 | [diff] [blame] | 392 | case SCHED_EVENT_MIGRATION: |
| 393 | break; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 394 | default: |
| 395 | BUG_ON(1); |
| 396 | } |
| 397 | } |
| 398 | |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 399 | static u64 get_cpu_usage_nsec_parent(void) |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 400 | { |
| 401 | struct rusage ru; |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 402 | u64 sum; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 403 | int err; |
| 404 | |
| 405 | err = getrusage(RUSAGE_SELF, &ru); |
| 406 | BUG_ON(err); |
| 407 | |
| 408 | sum = ru.ru_utime.tv_sec*1e9 + ru.ru_utime.tv_usec*1e3; |
| 409 | sum += ru.ru_stime.tv_sec*1e9 + ru.ru_stime.tv_usec*1e3; |
| 410 | |
| 411 | return sum; |
| 412 | } |
| 413 | |
Xiao Guangrong | c0c9e72 | 2009-12-09 17:51:30 +0800 | [diff] [blame] | 414 | static int self_open_counters(void) |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 415 | { |
Xiao Guangrong | c0c9e72 | 2009-12-09 17:51:30 +0800 | [diff] [blame] | 416 | struct perf_event_attr attr; |
| 417 | int fd; |
| 418 | |
| 419 | memset(&attr, 0, sizeof(attr)); |
| 420 | |
| 421 | attr.type = PERF_TYPE_SOFTWARE; |
| 422 | attr.config = PERF_COUNT_SW_TASK_CLOCK; |
| 423 | |
| 424 | fd = sys_perf_event_open(&attr, 0, -1, -1, 0); |
| 425 | |
| 426 | if (fd < 0) |
| 427 | die("Error: sys_perf_event_open() syscall returned" |
| 428 | "with %d (%s)\n", fd, strerror(errno)); |
| 429 | return fd; |
| 430 | } |
| 431 | |
| 432 | static u64 get_cpu_usage_nsec_self(int fd) |
| 433 | { |
| 434 | u64 runtime; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 435 | int ret; |
| 436 | |
Xiao Guangrong | c0c9e72 | 2009-12-09 17:51:30 +0800 | [diff] [blame] | 437 | ret = read(fd, &runtime, sizeof(runtime)); |
| 438 | BUG_ON(ret != sizeof(runtime)); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 439 | |
Xiao Guangrong | c0c9e72 | 2009-12-09 17:51:30 +0800 | [diff] [blame] | 440 | return runtime; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 441 | } |
| 442 | |
| 443 | static void *thread_func(void *ctx) |
| 444 | { |
| 445 | struct task_desc *this_task = ctx; |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 446 | u64 cpu_usage_0, cpu_usage_1; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 447 | unsigned long i, ret; |
| 448 | char comm2[22]; |
Xiao Guangrong | c0c9e72 | 2009-12-09 17:51:30 +0800 | [diff] [blame] | 449 | int fd; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 450 | |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 451 | sprintf(comm2, ":%s", this_task->comm); |
| 452 | prctl(PR_SET_NAME, comm2); |
Xiao Guangrong | c0c9e72 | 2009-12-09 17:51:30 +0800 | [diff] [blame] | 453 | fd = self_open_counters(); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 454 | |
| 455 | again: |
| 456 | ret = sem_post(&this_task->ready_for_work); |
| 457 | BUG_ON(ret); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 458 | ret = pthread_mutex_lock(&start_work_mutex); |
| 459 | BUG_ON(ret); |
| 460 | ret = pthread_mutex_unlock(&start_work_mutex); |
| 461 | BUG_ON(ret); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 462 | |
Xiao Guangrong | c0c9e72 | 2009-12-09 17:51:30 +0800 | [diff] [blame] | 463 | cpu_usage_0 = get_cpu_usage_nsec_self(fd); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 464 | |
| 465 | for (i = 0; i < this_task->nr_events; i++) { |
| 466 | this_task->curr_event = i; |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 467 | process_sched_event(this_task, this_task->atoms[i]); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 468 | } |
| 469 | |
Xiao Guangrong | c0c9e72 | 2009-12-09 17:51:30 +0800 | [diff] [blame] | 470 | cpu_usage_1 = get_cpu_usage_nsec_self(fd); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 471 | this_task->cpu_usage = cpu_usage_1 - cpu_usage_0; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 472 | ret = sem_post(&this_task->work_done_sem); |
| 473 | BUG_ON(ret); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 474 | |
| 475 | ret = pthread_mutex_lock(&work_done_wait_mutex); |
| 476 | BUG_ON(ret); |
| 477 | ret = pthread_mutex_unlock(&work_done_wait_mutex); |
| 478 | BUG_ON(ret); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 479 | |
| 480 | goto again; |
| 481 | } |
| 482 | |
| 483 | static void create_tasks(void) |
| 484 | { |
| 485 | struct task_desc *task; |
| 486 | pthread_attr_t attr; |
| 487 | unsigned long i; |
| 488 | int err; |
| 489 | |
| 490 | err = pthread_attr_init(&attr); |
| 491 | BUG_ON(err); |
| 492 | err = pthread_attr_setstacksize(&attr, (size_t)(16*1024)); |
| 493 | BUG_ON(err); |
| 494 | err = pthread_mutex_lock(&start_work_mutex); |
| 495 | BUG_ON(err); |
| 496 | err = pthread_mutex_lock(&work_done_wait_mutex); |
| 497 | BUG_ON(err); |
| 498 | for (i = 0; i < nr_tasks; i++) { |
| 499 | task = tasks[i]; |
| 500 | sem_init(&task->sleep_sem, 0, 0); |
| 501 | sem_init(&task->ready_for_work, 0, 0); |
| 502 | sem_init(&task->work_done_sem, 0, 0); |
| 503 | task->curr_event = 0; |
| 504 | err = pthread_create(&task->thread, &attr, thread_func, task); |
| 505 | BUG_ON(err); |
| 506 | } |
| 507 | } |
| 508 | |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 509 | static void wait_for_tasks(void) |
| 510 | { |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 511 | u64 cpu_usage_0, cpu_usage_1; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 512 | struct task_desc *task; |
| 513 | unsigned long i, ret; |
| 514 | |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 515 | start_time = get_nsecs(); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 516 | cpu_usage = 0; |
| 517 | pthread_mutex_unlock(&work_done_wait_mutex); |
| 518 | |
| 519 | for (i = 0; i < nr_tasks; i++) { |
| 520 | task = tasks[i]; |
| 521 | ret = sem_wait(&task->ready_for_work); |
| 522 | BUG_ON(ret); |
| 523 | sem_init(&task->ready_for_work, 0, 0); |
| 524 | } |
| 525 | ret = pthread_mutex_lock(&work_done_wait_mutex); |
| 526 | BUG_ON(ret); |
| 527 | |
| 528 | cpu_usage_0 = get_cpu_usage_nsec_parent(); |
| 529 | |
| 530 | pthread_mutex_unlock(&start_work_mutex); |
| 531 | |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 532 | for (i = 0; i < nr_tasks; i++) { |
| 533 | task = tasks[i]; |
| 534 | ret = sem_wait(&task->work_done_sem); |
| 535 | BUG_ON(ret); |
| 536 | sem_init(&task->work_done_sem, 0, 0); |
| 537 | cpu_usage += task->cpu_usage; |
| 538 | task->cpu_usage = 0; |
| 539 | } |
| 540 | |
| 541 | cpu_usage_1 = get_cpu_usage_nsec_parent(); |
| 542 | if (!runavg_cpu_usage) |
| 543 | runavg_cpu_usage = cpu_usage; |
| 544 | runavg_cpu_usage = (runavg_cpu_usage*9 + cpu_usage)/10; |
| 545 | |
| 546 | parent_cpu_usage = cpu_usage_1 - cpu_usage_0; |
| 547 | if (!runavg_parent_cpu_usage) |
| 548 | runavg_parent_cpu_usage = parent_cpu_usage; |
| 549 | runavg_parent_cpu_usage = (runavg_parent_cpu_usage*9 + |
| 550 | parent_cpu_usage)/10; |
| 551 | |
| 552 | ret = pthread_mutex_lock(&start_work_mutex); |
| 553 | BUG_ON(ret); |
| 554 | |
| 555 | for (i = 0; i < nr_tasks; i++) { |
| 556 | task = tasks[i]; |
| 557 | sem_init(&task->sleep_sem, 0, 0); |
| 558 | task->curr_event = 0; |
| 559 | } |
| 560 | } |
| 561 | |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 562 | static void run_one_test(void) |
| 563 | { |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 564 | u64 T0, T1, delta, avg_delta, fluct, std_dev; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 565 | |
| 566 | T0 = get_nsecs(); |
| 567 | wait_for_tasks(); |
| 568 | T1 = get_nsecs(); |
| 569 | |
| 570 | delta = T1 - T0; |
| 571 | sum_runtime += delta; |
| 572 | nr_runs++; |
| 573 | |
| 574 | avg_delta = sum_runtime / nr_runs; |
| 575 | if (delta < avg_delta) |
| 576 | fluct = avg_delta - delta; |
| 577 | else |
| 578 | fluct = delta - avg_delta; |
| 579 | sum_fluct += fluct; |
| 580 | std_dev = sum_fluct / nr_runs / sqrt(nr_runs); |
| 581 | if (!run_avg) |
| 582 | run_avg = delta; |
| 583 | run_avg = (run_avg*9 + delta)/10; |
| 584 | |
Ingo Molnar | ad236fd | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 585 | printf("#%-3ld: %0.3f, ", |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 586 | nr_runs, (double)delta/1000000.0); |
| 587 | |
Ingo Molnar | ad236fd | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 588 | printf("ravg: %0.2f, ", |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 589 | (double)run_avg/1e6); |
| 590 | |
Ingo Molnar | ad236fd | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 591 | printf("cpu: %0.2f / %0.2f", |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 592 | (double)cpu_usage/1e6, (double)runavg_cpu_usage/1e6); |
| 593 | |
| 594 | #if 0 |
| 595 | /* |
Ingo Molnar | fbf9482 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 596 | * rusage statistics done by the parent, these are less |
| 597 | * accurate than the sum_exec_runtime based statistics: |
| 598 | */ |
Ingo Molnar | ad236fd | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 599 | printf(" [%0.2f / %0.2f]", |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 600 | (double)parent_cpu_usage/1e6, |
| 601 | (double)runavg_parent_cpu_usage/1e6); |
| 602 | #endif |
| 603 | |
Ingo Molnar | ad236fd | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 604 | printf("\n"); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 605 | |
| 606 | if (nr_sleep_corrections) |
Ingo Molnar | ad236fd | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 607 | printf(" (%ld sleep corrections)\n", nr_sleep_corrections); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 608 | nr_sleep_corrections = 0; |
| 609 | } |
| 610 | |
| 611 | static void test_calibrations(void) |
| 612 | { |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 613 | u64 T0, T1; |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 614 | |
| 615 | T0 = get_nsecs(); |
| 616 | burn_nsecs(1e6); |
| 617 | T1 = get_nsecs(); |
| 618 | |
Ingo Molnar | ad236fd | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 619 | printf("the run test took %Ld nsecs\n", T1-T0); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 620 | |
| 621 | T0 = get_nsecs(); |
| 622 | sleep_nsecs(1e6); |
| 623 | T1 = get_nsecs(); |
| 624 | |
Ingo Molnar | ad236fd | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 625 | printf("the sleep test took %Ld nsecs\n", T1-T0); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 626 | } |
| 627 | |
Frederic Weisbecker | 4653881 | 2009-09-12 02:43:45 +0200 | [diff] [blame] | 628 | #define FILL_FIELD(ptr, field, event, data) \ |
| 629 | ptr.field = (typeof(ptr.field)) raw_field_value(event, #field, data) |
| 630 | |
| 631 | #define FILL_ARRAY(ptr, array, event, data) \ |
| 632 | do { \ |
| 633 | void *__array = raw_field_ptr(event, #array, data); \ |
| 634 | memcpy(ptr.array, __array, sizeof(ptr.array)); \ |
| 635 | } while(0) |
| 636 | |
| 637 | #define FILL_COMMON_FIELDS(ptr, event, data) \ |
| 638 | do { \ |
| 639 | FILL_FIELD(ptr, common_type, event, data); \ |
| 640 | FILL_FIELD(ptr, common_flags, event, data); \ |
| 641 | FILL_FIELD(ptr, common_preempt_count, event, data); \ |
| 642 | FILL_FIELD(ptr, common_pid, event, data); \ |
| 643 | FILL_FIELD(ptr, common_tgid, event, data); \ |
| 644 | } while (0) |
| 645 | |
Ingo Molnar | fbf9482 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 646 | |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 647 | |
Ingo Molnar | fbf9482 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 648 | struct trace_switch_event { |
| 649 | u32 size; |
| 650 | |
| 651 | u16 common_type; |
| 652 | u8 common_flags; |
| 653 | u8 common_preempt_count; |
| 654 | u32 common_pid; |
| 655 | u32 common_tgid; |
| 656 | |
| 657 | char prev_comm[16]; |
| 658 | u32 prev_pid; |
| 659 | u32 prev_prio; |
| 660 | u64 prev_state; |
| 661 | char next_comm[16]; |
| 662 | u32 next_pid; |
| 663 | u32 next_prio; |
| 664 | }; |
| 665 | |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 666 | struct trace_runtime_event { |
| 667 | u32 size; |
| 668 | |
| 669 | u16 common_type; |
| 670 | u8 common_flags; |
| 671 | u8 common_preempt_count; |
| 672 | u32 common_pid; |
| 673 | u32 common_tgid; |
| 674 | |
| 675 | char comm[16]; |
| 676 | u32 pid; |
| 677 | u64 runtime; |
| 678 | u64 vruntime; |
| 679 | }; |
Ingo Molnar | fbf9482 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 680 | |
Frederic Weisbecker | 419ab0d | 2009-09-12 03:59:01 +0200 | [diff] [blame] | 681 | struct trace_wakeup_event { |
| 682 | u32 size; |
| 683 | |
| 684 | u16 common_type; |
| 685 | u8 common_flags; |
| 686 | u8 common_preempt_count; |
| 687 | u32 common_pid; |
| 688 | u32 common_tgid; |
| 689 | |
| 690 | char comm[16]; |
| 691 | u32 pid; |
| 692 | |
| 693 | u32 prio; |
| 694 | u32 success; |
| 695 | u32 cpu; |
| 696 | }; |
| 697 | |
| 698 | struct trace_fork_event { |
| 699 | u32 size; |
| 700 | |
| 701 | u16 common_type; |
| 702 | u8 common_flags; |
| 703 | u8 common_preempt_count; |
| 704 | u32 common_pid; |
| 705 | u32 common_tgid; |
| 706 | |
| 707 | char parent_comm[16]; |
| 708 | u32 parent_pid; |
| 709 | char child_comm[16]; |
| 710 | u32 child_pid; |
| 711 | }; |
| 712 | |
Mike Galbraith | 55ffb7a | 2009-10-10 14:46:04 +0200 | [diff] [blame] | 713 | struct trace_migrate_task_event { |
| 714 | u32 size; |
| 715 | |
| 716 | u16 common_type; |
| 717 | u8 common_flags; |
| 718 | u8 common_preempt_count; |
| 719 | u32 common_pid; |
| 720 | u32 common_tgid; |
| 721 | |
| 722 | char comm[16]; |
| 723 | u32 pid; |
| 724 | |
| 725 | u32 prio; |
| 726 | u32 cpu; |
| 727 | }; |
| 728 | |
Frederic Weisbecker | 419ab0d | 2009-09-12 03:59:01 +0200 | [diff] [blame] | 729 | struct trace_sched_handler { |
| 730 | void (*switch_event)(struct trace_switch_event *, |
Arnaldo Carvalho de Melo | b3165f4 | 2009-12-13 19:50:28 -0200 | [diff] [blame] | 731 | struct perf_session *, |
Frederic Weisbecker | 419ab0d | 2009-09-12 03:59:01 +0200 | [diff] [blame] | 732 | struct event *, |
| 733 | int cpu, |
| 734 | u64 timestamp, |
| 735 | struct thread *thread); |
| 736 | |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 737 | void (*runtime_event)(struct trace_runtime_event *, |
Arnaldo Carvalho de Melo | b3165f4 | 2009-12-13 19:50:28 -0200 | [diff] [blame] | 738 | struct perf_session *, |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 739 | struct event *, |
| 740 | int cpu, |
| 741 | u64 timestamp, |
| 742 | struct thread *thread); |
| 743 | |
Frederic Weisbecker | 419ab0d | 2009-09-12 03:59:01 +0200 | [diff] [blame] | 744 | void (*wakeup_event)(struct trace_wakeup_event *, |
Arnaldo Carvalho de Melo | b3165f4 | 2009-12-13 19:50:28 -0200 | [diff] [blame] | 745 | struct perf_session *, |
Frederic Weisbecker | 419ab0d | 2009-09-12 03:59:01 +0200 | [diff] [blame] | 746 | struct event *, |
| 747 | int cpu, |
| 748 | u64 timestamp, |
| 749 | struct thread *thread); |
| 750 | |
| 751 | void (*fork_event)(struct trace_fork_event *, |
| 752 | struct event *, |
| 753 | int cpu, |
| 754 | u64 timestamp, |
| 755 | struct thread *thread); |
Mike Galbraith | 55ffb7a | 2009-10-10 14:46:04 +0200 | [diff] [blame] | 756 | |
| 757 | void (*migrate_task_event)(struct trace_migrate_task_event *, |
Arnaldo Carvalho de Melo | b3165f4 | 2009-12-13 19:50:28 -0200 | [diff] [blame] | 758 | struct perf_session *session, |
Mike Galbraith | 55ffb7a | 2009-10-10 14:46:04 +0200 | [diff] [blame] | 759 | struct event *, |
| 760 | int cpu, |
| 761 | u64 timestamp, |
| 762 | struct thread *thread); |
Frederic Weisbecker | 419ab0d | 2009-09-12 03:59:01 +0200 | [diff] [blame] | 763 | }; |
| 764 | |
Ingo Molnar | fbf9482 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 765 | |
| 766 | static void |
Frederic Weisbecker | 419ab0d | 2009-09-12 03:59:01 +0200 | [diff] [blame] | 767 | replay_wakeup_event(struct trace_wakeup_event *wakeup_event, |
Arnaldo Carvalho de Melo | b3165f4 | 2009-12-13 19:50:28 -0200 | [diff] [blame] | 768 | struct perf_session *session __used, |
Frederic Weisbecker | 419ab0d | 2009-09-12 03:59:01 +0200 | [diff] [blame] | 769 | struct event *event, |
| 770 | int cpu __used, |
| 771 | u64 timestamp __used, |
| 772 | struct thread *thread __used) |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 773 | { |
Frederic Weisbecker | 419ab0d | 2009-09-12 03:59:01 +0200 | [diff] [blame] | 774 | struct task_desc *waker, *wakee; |
| 775 | |
| 776 | if (verbose) { |
| 777 | printf("sched_wakeup event %p\n", event); |
| 778 | |
| 779 | printf(" ... pid %d woke up %s/%d\n", |
| 780 | wakeup_event->common_pid, |
| 781 | wakeup_event->comm, |
| 782 | wakeup_event->pid); |
| 783 | } |
| 784 | |
| 785 | waker = register_pid(wakeup_event->common_pid, "<unknown>"); |
| 786 | wakee = register_pid(wakeup_event->pid, wakeup_event->comm); |
| 787 | |
| 788 | add_sched_event_wakeup(waker, timestamp, wakee); |
| 789 | } |
| 790 | |
Ingo Molnar | d115338 | 2009-09-14 18:22:53 +0200 | [diff] [blame] | 791 | static u64 cpu_last_switched[MAX_CPUS]; |
Frederic Weisbecker | 419ab0d | 2009-09-12 03:59:01 +0200 | [diff] [blame] | 792 | |
| 793 | static void |
| 794 | replay_switch_event(struct trace_switch_event *switch_event, |
Arnaldo Carvalho de Melo | b3165f4 | 2009-12-13 19:50:28 -0200 | [diff] [blame] | 795 | struct perf_session *session __used, |
Frederic Weisbecker | 419ab0d | 2009-09-12 03:59:01 +0200 | [diff] [blame] | 796 | struct event *event, |
| 797 | int cpu, |
| 798 | u64 timestamp, |
| 799 | struct thread *thread __used) |
| 800 | { |
Ingo Molnar | fbf9482 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 801 | struct task_desc *prev, *next; |
| 802 | u64 timestamp0; |
| 803 | s64 delta; |
| 804 | |
Ingo Molnar | ad236fd | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 805 | if (verbose) |
| 806 | printf("sched_switch event %p\n", event); |
| 807 | |
Ingo Molnar | fbf9482 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 808 | if (cpu >= MAX_CPUS || cpu < 0) |
| 809 | return; |
| 810 | |
| 811 | timestamp0 = cpu_last_switched[cpu]; |
| 812 | if (timestamp0) |
| 813 | delta = timestamp - timestamp0; |
| 814 | else |
| 815 | delta = 0; |
| 816 | |
| 817 | if (delta < 0) |
| 818 | die("hm, delta: %Ld < 0 ?\n", delta); |
| 819 | |
Ingo Molnar | ad236fd | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 820 | if (verbose) { |
| 821 | printf(" ... switch from %s/%d to %s/%d [ran %Ld nsecs]\n", |
Frederic Weisbecker | 419ab0d | 2009-09-12 03:59:01 +0200 | [diff] [blame] | 822 | switch_event->prev_comm, switch_event->prev_pid, |
| 823 | switch_event->next_comm, switch_event->next_pid, |
Ingo Molnar | ad236fd | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 824 | delta); |
| 825 | } |
Ingo Molnar | fbf9482 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 826 | |
Frederic Weisbecker | 419ab0d | 2009-09-12 03:59:01 +0200 | [diff] [blame] | 827 | prev = register_pid(switch_event->prev_pid, switch_event->prev_comm); |
| 828 | next = register_pid(switch_event->next_pid, switch_event->next_comm); |
Ingo Molnar | fbf9482 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 829 | |
| 830 | cpu_last_switched[cpu] = timestamp; |
| 831 | |
| 832 | add_sched_event_run(prev, timestamp, delta); |
Frederic Weisbecker | 419ab0d | 2009-09-12 03:59:01 +0200 | [diff] [blame] | 833 | add_sched_event_sleep(prev, timestamp, switch_event->prev_state); |
Ingo Molnar | fbf9482 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 834 | } |
| 835 | |
Ingo Molnar | fbf9482 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 836 | |
| 837 | static void |
Frederic Weisbecker | 419ab0d | 2009-09-12 03:59:01 +0200 | [diff] [blame] | 838 | replay_fork_event(struct trace_fork_event *fork_event, |
| 839 | struct event *event, |
| 840 | int cpu __used, |
| 841 | u64 timestamp __used, |
| 842 | struct thread *thread __used) |
| 843 | { |
| 844 | if (verbose) { |
| 845 | printf("sched_fork event %p\n", event); |
| 846 | printf("... parent: %s/%d\n", fork_event->parent_comm, fork_event->parent_pid); |
| 847 | printf("... child: %s/%d\n", fork_event->child_comm, fork_event->child_pid); |
| 848 | } |
| 849 | register_pid(fork_event->parent_pid, fork_event->parent_comm); |
| 850 | register_pid(fork_event->child_pid, fork_event->child_comm); |
| 851 | } |
| 852 | |
| 853 | static struct trace_sched_handler replay_ops = { |
Ingo Molnar | ea92ed5 | 2009-09-12 10:08:34 +0200 | [diff] [blame] | 854 | .wakeup_event = replay_wakeup_event, |
| 855 | .switch_event = replay_switch_event, |
| 856 | .fork_event = replay_fork_event, |
Frederic Weisbecker | 419ab0d | 2009-09-12 03:59:01 +0200 | [diff] [blame] | 857 | }; |
| 858 | |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 859 | struct sort_dimension { |
| 860 | const char *name; |
Ingo Molnar | b5fae12 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 861 | sort_fn_t cmp; |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 862 | struct list_head list; |
| 863 | }; |
| 864 | |
| 865 | static LIST_HEAD(cmp_pid); |
| 866 | |
Frederic Weisbecker | daa1d7a | 2009-09-13 03:36:29 +0200 | [diff] [blame] | 867 | static int |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 868 | 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] | 869 | { |
| 870 | struct sort_dimension *sort; |
| 871 | int ret = 0; |
| 872 | |
Ingo Molnar | b5fae12 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 873 | BUG_ON(list_empty(list)); |
| 874 | |
Frederic Weisbecker | daa1d7a | 2009-09-13 03:36:29 +0200 | [diff] [blame] | 875 | list_for_each_entry(sort, list, list) { |
| 876 | ret = sort->cmp(l, r); |
| 877 | if (ret) |
| 878 | return ret; |
| 879 | } |
| 880 | |
| 881 | return ret; |
| 882 | } |
| 883 | |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 884 | static struct work_atoms * |
Ingo Molnar | b5fae12 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 885 | thread_atoms_search(struct rb_root *root, struct thread *thread, |
| 886 | struct list_head *sort_list) |
| 887 | { |
| 888 | struct rb_node *node = root->rb_node; |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 889 | struct work_atoms key = { .thread = thread }; |
Ingo Molnar | b5fae12 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 890 | |
| 891 | while (node) { |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 892 | struct work_atoms *atoms; |
Ingo Molnar | b5fae12 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 893 | int cmp; |
| 894 | |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 895 | atoms = container_of(node, struct work_atoms, node); |
Ingo Molnar | b5fae12 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 896 | |
| 897 | cmp = thread_lat_cmp(sort_list, &key, atoms); |
| 898 | if (cmp > 0) |
| 899 | node = node->rb_left; |
| 900 | else if (cmp < 0) |
| 901 | node = node->rb_right; |
| 902 | else { |
| 903 | BUG_ON(thread != atoms->thread); |
| 904 | return atoms; |
| 905 | } |
| 906 | } |
| 907 | return NULL; |
| 908 | } |
| 909 | |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 910 | static void |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 911 | __thread_latency_insert(struct rb_root *root, struct work_atoms *data, |
Frederic Weisbecker | daa1d7a | 2009-09-13 03:36:29 +0200 | [diff] [blame] | 912 | struct list_head *sort_list) |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 913 | { |
| 914 | struct rb_node **new = &(root->rb_node), *parent = NULL; |
| 915 | |
| 916 | while (*new) { |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 917 | struct work_atoms *this; |
Frederic Weisbecker | daa1d7a | 2009-09-13 03:36:29 +0200 | [diff] [blame] | 918 | int cmp; |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 919 | |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 920 | this = container_of(*new, struct work_atoms, node); |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 921 | parent = *new; |
Frederic Weisbecker | daa1d7a | 2009-09-13 03:36:29 +0200 | [diff] [blame] | 922 | |
| 923 | cmp = thread_lat_cmp(sort_list, data, this); |
| 924 | |
| 925 | if (cmp > 0) |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 926 | new = &((*new)->rb_left); |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 927 | else |
Frederic Weisbecker | daa1d7a | 2009-09-13 03:36:29 +0200 | [diff] [blame] | 928 | new = &((*new)->rb_right); |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 929 | } |
| 930 | |
| 931 | rb_link_node(&data->node, parent, new); |
| 932 | rb_insert_color(&data->node, root); |
| 933 | } |
| 934 | |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 935 | static void thread_atoms_insert(struct thread *thread) |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 936 | { |
Arnaldo Carvalho de Melo | 3647948 | 2009-11-24 12:05:16 -0200 | [diff] [blame] | 937 | struct work_atoms *atoms = zalloc(sizeof(*atoms)); |
Frederic Weisbecker | 1756220 | 2009-09-12 23:11:32 +0200 | [diff] [blame] | 938 | if (!atoms) |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 939 | die("No memory"); |
| 940 | |
Frederic Weisbecker | 1756220 | 2009-09-12 23:11:32 +0200 | [diff] [blame] | 941 | atoms->thread = thread; |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 942 | INIT_LIST_HEAD(&atoms->work_list); |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 943 | __thread_latency_insert(&atom_root, atoms, &cmp_pid); |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 944 | } |
| 945 | |
| 946 | static void |
| 947 | latency_fork_event(struct trace_fork_event *fork_event __used, |
| 948 | struct event *event __used, |
| 949 | int cpu __used, |
| 950 | u64 timestamp __used, |
| 951 | struct thread *thread __used) |
| 952 | { |
| 953 | /* should insert the newcomer */ |
| 954 | } |
| 955 | |
Ingo Molnar | ea92ed5 | 2009-09-12 10:08:34 +0200 | [diff] [blame] | 956 | __used |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 957 | static char sched_out_state(struct trace_switch_event *switch_event) |
| 958 | { |
| 959 | const char *str = TASK_STATE_TO_CHAR_STR; |
| 960 | |
| 961 | return str[switch_event->prev_state]; |
| 962 | } |
| 963 | |
| 964 | static void |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 965 | add_sched_out_event(struct work_atoms *atoms, |
| 966 | char run_state, |
| 967 | u64 timestamp) |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 968 | { |
Arnaldo Carvalho de Melo | 3647948 | 2009-11-24 12:05:16 -0200 | [diff] [blame] | 969 | struct work_atom *atom = zalloc(sizeof(*atom)); |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 970 | if (!atom) |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 971 | die("Non memory"); |
| 972 | |
Frederic Weisbecker | aa1ab9d | 2009-09-14 03:01:12 +0200 | [diff] [blame] | 973 | atom->sched_out_time = timestamp; |
| 974 | |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 975 | if (run_state == 'R') { |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 976 | atom->state = THREAD_WAIT_CPU; |
Frederic Weisbecker | aa1ab9d | 2009-09-14 03:01:12 +0200 | [diff] [blame] | 977 | atom->wake_up_time = atom->sched_out_time; |
Frederic Weisbecker | c6ced61 | 2009-09-13 00:46:19 +0200 | [diff] [blame] | 978 | } |
| 979 | |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 980 | list_add_tail(&atom->list, &atoms->work_list); |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 981 | } |
| 982 | |
| 983 | static void |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 984 | add_runtime_event(struct work_atoms *atoms, u64 delta, u64 timestamp __used) |
| 985 | { |
| 986 | struct work_atom *atom; |
| 987 | |
| 988 | BUG_ON(list_empty(&atoms->work_list)); |
| 989 | |
| 990 | atom = list_entry(atoms->work_list.prev, struct work_atom, list); |
| 991 | |
| 992 | atom->runtime += delta; |
| 993 | atoms->total_runtime += delta; |
| 994 | } |
| 995 | |
| 996 | static void |
| 997 | add_sched_in_event(struct work_atoms *atoms, u64 timestamp) |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 998 | { |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 999 | struct work_atom *atom; |
Frederic Weisbecker | 6668567 | 2009-09-13 01:56:25 +0200 | [diff] [blame] | 1000 | u64 delta; |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 1001 | |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1002 | if (list_empty(&atoms->work_list)) |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 1003 | return; |
| 1004 | |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1005 | atom = list_entry(atoms->work_list.prev, struct work_atom, list); |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 1006 | |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1007 | if (atom->state != THREAD_WAIT_CPU) |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 1008 | return; |
| 1009 | |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1010 | if (timestamp < atom->wake_up_time) { |
| 1011 | atom->state = THREAD_IGNORE; |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 1012 | return; |
| 1013 | } |
| 1014 | |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1015 | atom->state = THREAD_SCHED_IN; |
| 1016 | atom->sched_in_time = timestamp; |
Frederic Weisbecker | 6668567 | 2009-09-13 01:56:25 +0200 | [diff] [blame] | 1017 | |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1018 | delta = atom->sched_in_time - atom->wake_up_time; |
Frederic Weisbecker | 6668567 | 2009-09-13 01:56:25 +0200 | [diff] [blame] | 1019 | atoms->total_lat += delta; |
Frederic Weisbecker | 3786310a | 2009-12-09 21:40:08 +0100 | [diff] [blame] | 1020 | if (delta > atoms->max_lat) { |
Frederic Weisbecker | 6668567 | 2009-09-13 01:56:25 +0200 | [diff] [blame] | 1021 | atoms->max_lat = delta; |
Frederic Weisbecker | 3786310a | 2009-12-09 21:40:08 +0100 | [diff] [blame] | 1022 | atoms->max_lat_at = timestamp; |
| 1023 | } |
Frederic Weisbecker | 6668567 | 2009-09-13 01:56:25 +0200 | [diff] [blame] | 1024 | atoms->nb_atoms++; |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 1025 | } |
| 1026 | |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 1027 | static void |
| 1028 | latency_switch_event(struct trace_switch_event *switch_event, |
Arnaldo Carvalho de Melo | b3165f4 | 2009-12-13 19:50:28 -0200 | [diff] [blame] | 1029 | struct perf_session *session, |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 1030 | struct event *event __used, |
Ingo Molnar | ea92ed5 | 2009-09-12 10:08:34 +0200 | [diff] [blame] | 1031 | int cpu, |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 1032 | u64 timestamp, |
| 1033 | struct thread *thread __used) |
| 1034 | { |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1035 | struct work_atoms *out_events, *in_events; |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 1036 | struct thread *sched_out, *sched_in; |
Ingo Molnar | ea92ed5 | 2009-09-12 10:08:34 +0200 | [diff] [blame] | 1037 | u64 timestamp0; |
| 1038 | s64 delta; |
| 1039 | |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1040 | BUG_ON(cpu >= MAX_CPUS || cpu < 0); |
Ingo Molnar | ea92ed5 | 2009-09-12 10:08:34 +0200 | [diff] [blame] | 1041 | |
| 1042 | timestamp0 = cpu_last_switched[cpu]; |
| 1043 | cpu_last_switched[cpu] = timestamp; |
| 1044 | if (timestamp0) |
| 1045 | delta = timestamp - timestamp0; |
| 1046 | else |
| 1047 | delta = 0; |
| 1048 | |
| 1049 | if (delta < 0) |
| 1050 | die("hm, delta: %Ld < 0 ?\n", delta); |
| 1051 | |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 1052 | |
Arnaldo Carvalho de Melo | b3165f4 | 2009-12-13 19:50:28 -0200 | [diff] [blame] | 1053 | sched_out = perf_session__findnew(session, switch_event->prev_pid); |
| 1054 | sched_in = perf_session__findnew(session, switch_event->next_pid); |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 1055 | |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1056 | out_events = thread_atoms_search(&atom_root, sched_out, &cmp_pid); |
| 1057 | if (!out_events) { |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1058 | thread_atoms_insert(sched_out); |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1059 | out_events = thread_atoms_search(&atom_root, sched_out, &cmp_pid); |
| 1060 | if (!out_events) |
| 1061 | die("out-event: Internal tree error"); |
| 1062 | } |
| 1063 | add_sched_out_event(out_events, sched_out_state(switch_event), timestamp); |
| 1064 | |
| 1065 | in_events = thread_atoms_search(&atom_root, sched_in, &cmp_pid); |
| 1066 | if (!in_events) { |
| 1067 | thread_atoms_insert(sched_in); |
| 1068 | in_events = thread_atoms_search(&atom_root, sched_in, &cmp_pid); |
| 1069 | if (!in_events) |
| 1070 | die("in-event: Internal tree error"); |
| 1071 | /* |
| 1072 | * Take came in we have not heard about yet, |
| 1073 | * add in an initial atom in runnable state: |
| 1074 | */ |
| 1075 | add_sched_out_event(in_events, 'R', timestamp); |
| 1076 | } |
| 1077 | add_sched_in_event(in_events, timestamp); |
| 1078 | } |
| 1079 | |
| 1080 | static void |
| 1081 | latency_runtime_event(struct trace_runtime_event *runtime_event, |
Arnaldo Carvalho de Melo | b3165f4 | 2009-12-13 19:50:28 -0200 | [diff] [blame] | 1082 | struct perf_session *session, |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1083 | struct event *event __used, |
| 1084 | int cpu, |
| 1085 | u64 timestamp, |
| 1086 | struct thread *this_thread __used) |
| 1087 | { |
Arnaldo Carvalho de Melo | b3165f4 | 2009-12-13 19:50:28 -0200 | [diff] [blame] | 1088 | struct thread *thread = perf_session__findnew(session, runtime_event->pid); |
Arnaldo Carvalho de Melo | d5b889f | 2009-10-13 11:16:29 -0300 | [diff] [blame] | 1089 | struct work_atoms *atoms = thread_atoms_search(&atom_root, thread, &cmp_pid); |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1090 | |
| 1091 | BUG_ON(cpu >= MAX_CPUS || cpu < 0); |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1092 | if (!atoms) { |
| 1093 | thread_atoms_insert(thread); |
| 1094 | atoms = thread_atoms_search(&atom_root, thread, &cmp_pid); |
| 1095 | if (!atoms) |
| 1096 | die("in-event: Internal tree error"); |
| 1097 | add_sched_out_event(atoms, 'R', timestamp); |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 1098 | } |
| 1099 | |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1100 | add_runtime_event(atoms, runtime_event->runtime, timestamp); |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 1101 | } |
| 1102 | |
| 1103 | static void |
| 1104 | latency_wakeup_event(struct trace_wakeup_event *wakeup_event, |
Arnaldo Carvalho de Melo | b3165f4 | 2009-12-13 19:50:28 -0200 | [diff] [blame] | 1105 | struct perf_session *session, |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1106 | struct event *__event __used, |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 1107 | int cpu __used, |
| 1108 | u64 timestamp, |
| 1109 | struct thread *thread __used) |
| 1110 | { |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1111 | struct work_atoms *atoms; |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1112 | struct work_atom *atom; |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 1113 | struct thread *wakee; |
| 1114 | |
| 1115 | /* Note for later, it may be interesting to observe the failing cases */ |
| 1116 | if (!wakeup_event->success) |
| 1117 | return; |
| 1118 | |
Arnaldo Carvalho de Melo | b3165f4 | 2009-12-13 19:50:28 -0200 | [diff] [blame] | 1119 | wakee = perf_session__findnew(session, wakeup_event->pid); |
Ingo Molnar | b5fae12 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1120 | atoms = thread_atoms_search(&atom_root, wakee, &cmp_pid); |
Frederic Weisbecker | 1756220 | 2009-09-12 23:11:32 +0200 | [diff] [blame] | 1121 | if (!atoms) { |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1122 | thread_atoms_insert(wakee); |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1123 | atoms = thread_atoms_search(&atom_root, wakee, &cmp_pid); |
| 1124 | if (!atoms) |
| 1125 | die("wakeup-event: Internal tree error"); |
| 1126 | add_sched_out_event(atoms, 'S', timestamp); |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 1127 | } |
| 1128 | |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1129 | BUG_ON(list_empty(&atoms->work_list)); |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 1130 | |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1131 | atom = list_entry(atoms->work_list.prev, struct work_atom, list); |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 1132 | |
Mike Galbraith | 55ffb7a | 2009-10-10 14:46:04 +0200 | [diff] [blame] | 1133 | /* |
| 1134 | * You WILL be missing events if you've recorded only |
| 1135 | * one CPU, or are only looking at only one, so don't |
| 1136 | * make useless noise. |
| 1137 | */ |
| 1138 | if (profile_cpu == -1 && atom->state != THREAD_SLEEPING) |
Ingo Molnar | dc02bf7 | 2009-09-16 13:45:00 +0200 | [diff] [blame] | 1139 | nr_state_machine_bugs++; |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 1140 | |
Ingo Molnar | ea57c4f | 2009-09-13 18:15:54 +0200 | [diff] [blame] | 1141 | nr_timestamps++; |
| 1142 | if (atom->sched_out_time > timestamp) { |
Ingo Molnar | dc02bf7 | 2009-09-16 13:45:00 +0200 | [diff] [blame] | 1143 | nr_unordered_timestamps++; |
Frederic Weisbecker | aa1ab9d | 2009-09-14 03:01:12 +0200 | [diff] [blame] | 1144 | return; |
Ingo Molnar | ea57c4f | 2009-09-13 18:15:54 +0200 | [diff] [blame] | 1145 | } |
Frederic Weisbecker | aa1ab9d | 2009-09-14 03:01:12 +0200 | [diff] [blame] | 1146 | |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1147 | atom->state = THREAD_WAIT_CPU; |
| 1148 | atom->wake_up_time = timestamp; |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 1149 | } |
| 1150 | |
Mike Galbraith | 55ffb7a | 2009-10-10 14:46:04 +0200 | [diff] [blame] | 1151 | static void |
| 1152 | latency_migrate_task_event(struct trace_migrate_task_event *migrate_task_event, |
Arnaldo Carvalho de Melo | b3165f4 | 2009-12-13 19:50:28 -0200 | [diff] [blame] | 1153 | struct perf_session *session, |
Mike Galbraith | 55ffb7a | 2009-10-10 14:46:04 +0200 | [diff] [blame] | 1154 | struct event *__event __used, |
| 1155 | int cpu __used, |
| 1156 | u64 timestamp, |
| 1157 | struct thread *thread __used) |
| 1158 | { |
| 1159 | struct work_atoms *atoms; |
| 1160 | struct work_atom *atom; |
| 1161 | struct thread *migrant; |
| 1162 | |
| 1163 | /* |
| 1164 | * Only need to worry about migration when profiling one CPU. |
| 1165 | */ |
| 1166 | if (profile_cpu == -1) |
| 1167 | return; |
| 1168 | |
Arnaldo Carvalho de Melo | b3165f4 | 2009-12-13 19:50:28 -0200 | [diff] [blame] | 1169 | migrant = perf_session__findnew(session, migrate_task_event->pid); |
Mike Galbraith | 55ffb7a | 2009-10-10 14:46:04 +0200 | [diff] [blame] | 1170 | atoms = thread_atoms_search(&atom_root, migrant, &cmp_pid); |
| 1171 | if (!atoms) { |
| 1172 | thread_atoms_insert(migrant); |
| 1173 | register_pid(migrant->pid, migrant->comm); |
| 1174 | atoms = thread_atoms_search(&atom_root, migrant, &cmp_pid); |
| 1175 | if (!atoms) |
| 1176 | die("migration-event: Internal tree error"); |
| 1177 | add_sched_out_event(atoms, 'R', timestamp); |
| 1178 | } |
| 1179 | |
| 1180 | BUG_ON(list_empty(&atoms->work_list)); |
| 1181 | |
| 1182 | atom = list_entry(atoms->work_list.prev, struct work_atom, list); |
| 1183 | atom->sched_in_time = atom->sched_out_time = atom->wake_up_time = timestamp; |
| 1184 | |
| 1185 | nr_timestamps++; |
| 1186 | |
| 1187 | if (atom->sched_out_time > timestamp) |
| 1188 | nr_unordered_timestamps++; |
| 1189 | } |
| 1190 | |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 1191 | static struct trace_sched_handler lat_ops = { |
Ingo Molnar | ea92ed5 | 2009-09-12 10:08:34 +0200 | [diff] [blame] | 1192 | .wakeup_event = latency_wakeup_event, |
| 1193 | .switch_event = latency_switch_event, |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1194 | .runtime_event = latency_runtime_event, |
Ingo Molnar | ea92ed5 | 2009-09-12 10:08:34 +0200 | [diff] [blame] | 1195 | .fork_event = latency_fork_event, |
Mike Galbraith | 55ffb7a | 2009-10-10 14:46:04 +0200 | [diff] [blame] | 1196 | .migrate_task_event = latency_migrate_task_event, |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 1197 | }; |
| 1198 | |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1199 | static void output_lat_thread(struct work_atoms *work_list) |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 1200 | { |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 1201 | int i; |
| 1202 | int ret; |
Frederic Weisbecker | 6668567 | 2009-09-13 01:56:25 +0200 | [diff] [blame] | 1203 | u64 avg; |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 1204 | |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1205 | if (!work_list->nb_atoms) |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 1206 | return; |
Ingo Molnar | ea57c4f | 2009-09-13 18:15:54 +0200 | [diff] [blame] | 1207 | /* |
| 1208 | * Ignore idle threads: |
| 1209 | */ |
Ingo Molnar | 80ed098 | 2009-09-16 14:12:36 +0200 | [diff] [blame] | 1210 | if (!strcmp(work_list->thread->comm, "swapper")) |
Ingo Molnar | ea57c4f | 2009-09-13 18:15:54 +0200 | [diff] [blame] | 1211 | return; |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 1212 | |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1213 | all_runtime += work_list->total_runtime; |
| 1214 | all_count += work_list->nb_atoms; |
Frederic Weisbecker | 6668567 | 2009-09-13 01:56:25 +0200 | [diff] [blame] | 1215 | |
Ingo Molnar | 80ed098 | 2009-09-16 14:12:36 +0200 | [diff] [blame] | 1216 | ret = printf(" %s:%d ", work_list->thread->comm, work_list->thread->pid); |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 1217 | |
mingo | 08f69e6 | 2009-09-14 18:30:44 +0200 | [diff] [blame] | 1218 | for (i = 0; i < 24 - ret; i++) |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 1219 | printf(" "); |
| 1220 | |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1221 | avg = work_list->total_lat / work_list->nb_atoms; |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 1222 | |
Frederic Weisbecker | 3786310a | 2009-12-09 21:40:08 +0100 | [diff] [blame] | 1223 | printf("|%11.3f ms |%9llu | 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] | 1224 | (double)work_list->total_runtime / 1e6, |
| 1225 | work_list->nb_atoms, (double)avg / 1e6, |
Frederic Weisbecker | 3786310a | 2009-12-09 21:40:08 +0100 | [diff] [blame] | 1226 | (double)work_list->max_lat / 1e6, |
| 1227 | (double)work_list->max_lat_at / 1e9); |
Frederic Weisbecker | cdce9d7 | 2009-09-12 08:06:14 +0200 | [diff] [blame] | 1228 | } |
| 1229 | |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1230 | static int pid_cmp(struct work_atoms *l, struct work_atoms *r) |
Frederic Weisbecker | daa1d7a | 2009-09-13 03:36:29 +0200 | [diff] [blame] | 1231 | { |
Frederic Weisbecker | daa1d7a | 2009-09-13 03:36:29 +0200 | [diff] [blame] | 1232 | if (l->thread->pid < r->thread->pid) |
| 1233 | return -1; |
| 1234 | if (l->thread->pid > r->thread->pid) |
| 1235 | return 1; |
| 1236 | |
| 1237 | return 0; |
| 1238 | } |
| 1239 | |
| 1240 | static struct sort_dimension pid_sort_dimension = { |
Ingo Molnar | b5fae12 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1241 | .name = "pid", |
| 1242 | .cmp = pid_cmp, |
Frederic Weisbecker | daa1d7a | 2009-09-13 03:36:29 +0200 | [diff] [blame] | 1243 | }; |
| 1244 | |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1245 | static int avg_cmp(struct work_atoms *l, struct work_atoms *r) |
Frederic Weisbecker | daa1d7a | 2009-09-13 03:36:29 +0200 | [diff] [blame] | 1246 | { |
| 1247 | u64 avgl, avgr; |
| 1248 | |
| 1249 | if (!l->nb_atoms) |
| 1250 | return -1; |
| 1251 | |
| 1252 | if (!r->nb_atoms) |
| 1253 | return 1; |
| 1254 | |
| 1255 | avgl = l->total_lat / l->nb_atoms; |
| 1256 | avgr = r->total_lat / r->nb_atoms; |
| 1257 | |
| 1258 | if (avgl < avgr) |
| 1259 | return -1; |
| 1260 | if (avgl > avgr) |
| 1261 | return 1; |
| 1262 | |
| 1263 | return 0; |
| 1264 | } |
| 1265 | |
| 1266 | static struct sort_dimension avg_sort_dimension = { |
Ingo Molnar | b5fae12 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1267 | .name = "avg", |
| 1268 | .cmp = avg_cmp, |
Frederic Weisbecker | daa1d7a | 2009-09-13 03:36:29 +0200 | [diff] [blame] | 1269 | }; |
| 1270 | |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1271 | static int max_cmp(struct work_atoms *l, struct work_atoms *r) |
Frederic Weisbecker | daa1d7a | 2009-09-13 03:36:29 +0200 | [diff] [blame] | 1272 | { |
| 1273 | if (l->max_lat < r->max_lat) |
| 1274 | return -1; |
| 1275 | if (l->max_lat > r->max_lat) |
| 1276 | return 1; |
| 1277 | |
| 1278 | return 0; |
| 1279 | } |
| 1280 | |
| 1281 | static struct sort_dimension max_sort_dimension = { |
Ingo Molnar | b5fae12 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1282 | .name = "max", |
| 1283 | .cmp = max_cmp, |
Frederic Weisbecker | daa1d7a | 2009-09-13 03:36:29 +0200 | [diff] [blame] | 1284 | }; |
| 1285 | |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1286 | static int switch_cmp(struct work_atoms *l, struct work_atoms *r) |
Frederic Weisbecker | daa1d7a | 2009-09-13 03:36:29 +0200 | [diff] [blame] | 1287 | { |
| 1288 | if (l->nb_atoms < r->nb_atoms) |
| 1289 | return -1; |
| 1290 | if (l->nb_atoms > r->nb_atoms) |
| 1291 | return 1; |
| 1292 | |
| 1293 | return 0; |
| 1294 | } |
| 1295 | |
| 1296 | static struct sort_dimension switch_sort_dimension = { |
Ingo Molnar | b5fae12 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1297 | .name = "switch", |
| 1298 | .cmp = switch_cmp, |
Frederic Weisbecker | daa1d7a | 2009-09-13 03:36:29 +0200 | [diff] [blame] | 1299 | }; |
| 1300 | |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1301 | static int runtime_cmp(struct work_atoms *l, struct work_atoms *r) |
Frederic Weisbecker | daa1d7a | 2009-09-13 03:36:29 +0200 | [diff] [blame] | 1302 | { |
| 1303 | if (l->total_runtime < r->total_runtime) |
| 1304 | return -1; |
| 1305 | if (l->total_runtime > r->total_runtime) |
| 1306 | return 1; |
| 1307 | |
| 1308 | return 0; |
| 1309 | } |
| 1310 | |
| 1311 | static struct sort_dimension runtime_sort_dimension = { |
Ingo Molnar | b5fae12 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1312 | .name = "runtime", |
| 1313 | .cmp = runtime_cmp, |
Frederic Weisbecker | daa1d7a | 2009-09-13 03:36:29 +0200 | [diff] [blame] | 1314 | }; |
| 1315 | |
| 1316 | static struct sort_dimension *available_sorts[] = { |
| 1317 | &pid_sort_dimension, |
| 1318 | &avg_sort_dimension, |
| 1319 | &max_sort_dimension, |
| 1320 | &switch_sort_dimension, |
| 1321 | &runtime_sort_dimension, |
| 1322 | }; |
| 1323 | |
| 1324 | #define NB_AVAILABLE_SORTS (int)(sizeof(available_sorts) / sizeof(struct sort_dimension *)) |
| 1325 | |
| 1326 | static LIST_HEAD(sort_list); |
| 1327 | |
Randy Dunlap | cbef79a | 2009-10-05 13:17:29 -0700 | [diff] [blame] | 1328 | static int sort_dimension__add(const char *tok, struct list_head *list) |
Frederic Weisbecker | daa1d7a | 2009-09-13 03:36:29 +0200 | [diff] [blame] | 1329 | { |
| 1330 | int i; |
| 1331 | |
| 1332 | for (i = 0; i < NB_AVAILABLE_SORTS; i++) { |
| 1333 | if (!strcmp(available_sorts[i]->name, tok)) { |
| 1334 | list_add_tail(&available_sorts[i]->list, list); |
| 1335 | |
| 1336 | return 0; |
| 1337 | } |
| 1338 | } |
| 1339 | |
| 1340 | return -1; |
| 1341 | } |
| 1342 | |
| 1343 | static void setup_sorting(void); |
| 1344 | |
| 1345 | static void sort_lat(void) |
| 1346 | { |
| 1347 | struct rb_node *node; |
| 1348 | |
| 1349 | for (;;) { |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1350 | struct work_atoms *data; |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1351 | node = rb_first(&atom_root); |
Frederic Weisbecker | daa1d7a | 2009-09-13 03:36:29 +0200 | [diff] [blame] | 1352 | if (!node) |
| 1353 | break; |
| 1354 | |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1355 | rb_erase(node, &atom_root); |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1356 | data = rb_entry(node, struct work_atoms, node); |
Ingo Molnar | b1ffe8f | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1357 | __thread_latency_insert(&sorted_atom_root, data, &sort_list); |
Frederic Weisbecker | daa1d7a | 2009-09-13 03:36:29 +0200 | [diff] [blame] | 1358 | } |
| 1359 | } |
| 1360 | |
Frederic Weisbecker | 419ab0d | 2009-09-12 03:59:01 +0200 | [diff] [blame] | 1361 | static struct trace_sched_handler *trace_handler; |
| 1362 | |
| 1363 | static void |
Arnaldo Carvalho de Melo | b3165f4 | 2009-12-13 19:50:28 -0200 | [diff] [blame] | 1364 | process_sched_wakeup_event(void *data, struct perf_session *session, |
Frederic Weisbecker | 419ab0d | 2009-09-12 03:59:01 +0200 | [diff] [blame] | 1365 | struct event *event, |
| 1366 | int cpu __used, |
| 1367 | u64 timestamp __used, |
| 1368 | struct thread *thread __used) |
| 1369 | { |
| 1370 | struct trace_wakeup_event wakeup_event; |
| 1371 | |
Xiao Guangrong | f48f669 | 2009-12-07 13:04:04 +0800 | [diff] [blame] | 1372 | FILL_COMMON_FIELDS(wakeup_event, event, data); |
Frederic Weisbecker | 419ab0d | 2009-09-12 03:59:01 +0200 | [diff] [blame] | 1373 | |
Xiao Guangrong | f48f669 | 2009-12-07 13:04:04 +0800 | [diff] [blame] | 1374 | FILL_ARRAY(wakeup_event, comm, event, data); |
| 1375 | FILL_FIELD(wakeup_event, pid, event, data); |
| 1376 | FILL_FIELD(wakeup_event, prio, event, data); |
| 1377 | FILL_FIELD(wakeup_event, success, event, data); |
| 1378 | FILL_FIELD(wakeup_event, cpu, event, data); |
Frederic Weisbecker | 419ab0d | 2009-09-12 03:59:01 +0200 | [diff] [blame] | 1379 | |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1380 | if (trace_handler->wakeup_event) |
Arnaldo Carvalho de Melo | b3165f4 | 2009-12-13 19:50:28 -0200 | [diff] [blame] | 1381 | trace_handler->wakeup_event(&wakeup_event, session, event, |
| 1382 | cpu, timestamp, thread); |
Frederic Weisbecker | 419ab0d | 2009-09-12 03:59:01 +0200 | [diff] [blame] | 1383 | } |
| 1384 | |
Ingo Molnar | c8a3775 | 2009-09-16 14:07:00 +0200 | [diff] [blame] | 1385 | /* |
| 1386 | * Track the current task - that way we can know whether there's any |
| 1387 | * weird events, such as a task being switched away that is not current. |
| 1388 | */ |
Ingo Molnar | 40749d0 | 2009-09-17 18:24:55 +0200 | [diff] [blame] | 1389 | static int max_cpu; |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1390 | |
Ingo Molnar | c8a3775 | 2009-09-16 14:07:00 +0200 | [diff] [blame] | 1391 | static u32 curr_pid[MAX_CPUS] = { [0 ... MAX_CPUS-1] = -1 }; |
| 1392 | |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1393 | static struct thread *curr_thread[MAX_CPUS]; |
| 1394 | |
| 1395 | static char next_shortname1 = 'A'; |
| 1396 | static char next_shortname2 = '0'; |
| 1397 | |
| 1398 | static void |
| 1399 | map_switch_event(struct trace_switch_event *switch_event, |
Arnaldo Carvalho de Melo | b3165f4 | 2009-12-13 19:50:28 -0200 | [diff] [blame] | 1400 | struct perf_session *session, |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1401 | struct event *event __used, |
| 1402 | int this_cpu, |
| 1403 | u64 timestamp, |
| 1404 | struct thread *thread __used) |
| 1405 | { |
| 1406 | struct thread *sched_out, *sched_in; |
| 1407 | int new_shortname; |
| 1408 | u64 timestamp0; |
| 1409 | s64 delta; |
| 1410 | int cpu; |
| 1411 | |
| 1412 | BUG_ON(this_cpu >= MAX_CPUS || this_cpu < 0); |
| 1413 | |
| 1414 | if (this_cpu > max_cpu) |
| 1415 | max_cpu = this_cpu; |
| 1416 | |
| 1417 | timestamp0 = cpu_last_switched[this_cpu]; |
| 1418 | cpu_last_switched[this_cpu] = timestamp; |
| 1419 | if (timestamp0) |
| 1420 | delta = timestamp - timestamp0; |
| 1421 | else |
| 1422 | delta = 0; |
| 1423 | |
| 1424 | if (delta < 0) |
| 1425 | die("hm, delta: %Ld < 0 ?\n", delta); |
| 1426 | |
| 1427 | |
Arnaldo Carvalho de Melo | b3165f4 | 2009-12-13 19:50:28 -0200 | [diff] [blame] | 1428 | sched_out = perf_session__findnew(session, switch_event->prev_pid); |
| 1429 | sched_in = perf_session__findnew(session, switch_event->next_pid); |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1430 | |
| 1431 | curr_thread[this_cpu] = sched_in; |
| 1432 | |
| 1433 | printf(" "); |
| 1434 | |
| 1435 | new_shortname = 0; |
| 1436 | if (!sched_in->shortname[0]) { |
| 1437 | sched_in->shortname[0] = next_shortname1; |
| 1438 | sched_in->shortname[1] = next_shortname2; |
| 1439 | |
| 1440 | if (next_shortname1 < 'Z') { |
| 1441 | next_shortname1++; |
| 1442 | } else { |
| 1443 | next_shortname1='A'; |
| 1444 | if (next_shortname2 < '9') { |
| 1445 | next_shortname2++; |
| 1446 | } else { |
| 1447 | next_shortname2='0'; |
| 1448 | } |
| 1449 | } |
| 1450 | new_shortname = 1; |
| 1451 | } |
| 1452 | |
| 1453 | for (cpu = 0; cpu <= max_cpu; cpu++) { |
| 1454 | if (cpu != this_cpu) |
| 1455 | printf(" "); |
| 1456 | else |
| 1457 | printf("*"); |
| 1458 | |
| 1459 | if (curr_thread[cpu]) { |
| 1460 | if (curr_thread[cpu]->pid) |
| 1461 | printf("%2s ", curr_thread[cpu]->shortname); |
| 1462 | else |
| 1463 | printf(". "); |
| 1464 | } else |
| 1465 | printf(" "); |
| 1466 | } |
| 1467 | |
| 1468 | printf(" %12.6f secs ", (double)timestamp/1e9); |
| 1469 | if (new_shortname) { |
| 1470 | printf("%s => %s:%d\n", |
| 1471 | sched_in->shortname, sched_in->comm, sched_in->pid); |
| 1472 | } else { |
| 1473 | printf("\n"); |
| 1474 | } |
| 1475 | } |
| 1476 | |
| 1477 | |
Frederic Weisbecker | 419ab0d | 2009-09-12 03:59:01 +0200 | [diff] [blame] | 1478 | static void |
Arnaldo Carvalho de Melo | b3165f4 | 2009-12-13 19:50:28 -0200 | [diff] [blame] | 1479 | process_sched_switch_event(void *data, struct perf_session *session, |
Frederic Weisbecker | 419ab0d | 2009-09-12 03:59:01 +0200 | [diff] [blame] | 1480 | struct event *event, |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1481 | int this_cpu, |
Frederic Weisbecker | 419ab0d | 2009-09-12 03:59:01 +0200 | [diff] [blame] | 1482 | u64 timestamp __used, |
| 1483 | struct thread *thread __used) |
| 1484 | { |
| 1485 | struct trace_switch_event switch_event; |
| 1486 | |
Xiao Guangrong | f48f669 | 2009-12-07 13:04:04 +0800 | [diff] [blame] | 1487 | FILL_COMMON_FIELDS(switch_event, event, data); |
Frederic Weisbecker | 419ab0d | 2009-09-12 03:59:01 +0200 | [diff] [blame] | 1488 | |
Xiao Guangrong | f48f669 | 2009-12-07 13:04:04 +0800 | [diff] [blame] | 1489 | FILL_ARRAY(switch_event, prev_comm, event, data); |
| 1490 | FILL_FIELD(switch_event, prev_pid, event, data); |
| 1491 | FILL_FIELD(switch_event, prev_prio, event, data); |
| 1492 | FILL_FIELD(switch_event, prev_state, event, data); |
| 1493 | FILL_ARRAY(switch_event, next_comm, event, data); |
| 1494 | FILL_FIELD(switch_event, next_pid, event, data); |
| 1495 | FILL_FIELD(switch_event, next_prio, event, data); |
Frederic Weisbecker | 419ab0d | 2009-09-12 03:59:01 +0200 | [diff] [blame] | 1496 | |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1497 | if (curr_pid[this_cpu] != (u32)-1) { |
Ingo Molnar | c8a3775 | 2009-09-16 14:07:00 +0200 | [diff] [blame] | 1498 | /* |
| 1499 | * Are we trying to switch away a PID that is |
| 1500 | * not current? |
| 1501 | */ |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1502 | if (curr_pid[this_cpu] != switch_event.prev_pid) |
Ingo Molnar | c8a3775 | 2009-09-16 14:07:00 +0200 | [diff] [blame] | 1503 | nr_context_switch_bugs++; |
| 1504 | } |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1505 | if (trace_handler->switch_event) |
Arnaldo Carvalho de Melo | b3165f4 | 2009-12-13 19:50:28 -0200 | [diff] [blame] | 1506 | trace_handler->switch_event(&switch_event, session, event, |
| 1507 | this_cpu, timestamp, thread); |
Ingo Molnar | c8a3775 | 2009-09-16 14:07:00 +0200 | [diff] [blame] | 1508 | |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1509 | curr_pid[this_cpu] = switch_event.next_pid; |
Frederic Weisbecker | 419ab0d | 2009-09-12 03:59:01 +0200 | [diff] [blame] | 1510 | } |
| 1511 | |
| 1512 | static void |
Arnaldo Carvalho de Melo | b3165f4 | 2009-12-13 19:50:28 -0200 | [diff] [blame] | 1513 | process_sched_runtime_event(void *data, struct perf_session *session, |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1514 | struct event *event, |
| 1515 | int cpu __used, |
| 1516 | u64 timestamp __used, |
| 1517 | struct thread *thread __used) |
| 1518 | { |
| 1519 | struct trace_runtime_event runtime_event; |
| 1520 | |
Xiao Guangrong | f48f669 | 2009-12-07 13:04:04 +0800 | [diff] [blame] | 1521 | FILL_ARRAY(runtime_event, comm, event, data); |
| 1522 | FILL_FIELD(runtime_event, pid, event, data); |
| 1523 | FILL_FIELD(runtime_event, runtime, event, data); |
| 1524 | FILL_FIELD(runtime_event, vruntime, event, data); |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1525 | |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1526 | if (trace_handler->runtime_event) |
Arnaldo Carvalho de Melo | b3165f4 | 2009-12-13 19:50:28 -0200 | [diff] [blame] | 1527 | trace_handler->runtime_event(&runtime_event, session, event, cpu, timestamp, thread); |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1528 | } |
| 1529 | |
| 1530 | static void |
Xiao Guangrong | f48f669 | 2009-12-07 13:04:04 +0800 | [diff] [blame] | 1531 | process_sched_fork_event(void *data, |
Frederic Weisbecker | 419ab0d | 2009-09-12 03:59:01 +0200 | [diff] [blame] | 1532 | struct event *event, |
| 1533 | int cpu __used, |
| 1534 | u64 timestamp __used, |
| 1535 | struct thread *thread __used) |
Ingo Molnar | fbf9482 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1536 | { |
Frederic Weisbecker | 4653881 | 2009-09-12 02:43:45 +0200 | [diff] [blame] | 1537 | struct trace_fork_event fork_event; |
| 1538 | |
Xiao Guangrong | f48f669 | 2009-12-07 13:04:04 +0800 | [diff] [blame] | 1539 | FILL_COMMON_FIELDS(fork_event, event, data); |
Frederic Weisbecker | 4653881 | 2009-09-12 02:43:45 +0200 | [diff] [blame] | 1540 | |
Xiao Guangrong | f48f669 | 2009-12-07 13:04:04 +0800 | [diff] [blame] | 1541 | FILL_ARRAY(fork_event, parent_comm, event, data); |
| 1542 | FILL_FIELD(fork_event, parent_pid, event, data); |
| 1543 | FILL_ARRAY(fork_event, child_comm, event, data); |
| 1544 | FILL_FIELD(fork_event, child_pid, event, data); |
Frederic Weisbecker | 4653881 | 2009-09-12 02:43:45 +0200 | [diff] [blame] | 1545 | |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1546 | if (trace_handler->fork_event) |
Arnaldo Carvalho de Melo | b3165f4 | 2009-12-13 19:50:28 -0200 | [diff] [blame] | 1547 | trace_handler->fork_event(&fork_event, event, |
| 1548 | cpu, timestamp, thread); |
Ingo Molnar | fbf9482 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1549 | } |
| 1550 | |
Frederic Weisbecker | 419ab0d | 2009-09-12 03:59:01 +0200 | [diff] [blame] | 1551 | static void |
| 1552 | process_sched_exit_event(struct event *event, |
| 1553 | int cpu __used, |
| 1554 | u64 timestamp __used, |
| 1555 | struct thread *thread __used) |
Ingo Molnar | fbf9482 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1556 | { |
Ingo Molnar | ad236fd | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1557 | if (verbose) |
| 1558 | printf("sched_exit event %p\n", event); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1559 | } |
| 1560 | |
| 1561 | static void |
Arnaldo Carvalho de Melo | b3165f4 | 2009-12-13 19:50:28 -0200 | [diff] [blame] | 1562 | process_sched_migrate_task_event(void *data, struct perf_session *session, |
Mike Galbraith | 55ffb7a | 2009-10-10 14:46:04 +0200 | [diff] [blame] | 1563 | struct event *event, |
| 1564 | int cpu __used, |
| 1565 | u64 timestamp __used, |
| 1566 | struct thread *thread __used) |
| 1567 | { |
| 1568 | struct trace_migrate_task_event migrate_task_event; |
| 1569 | |
Xiao Guangrong | f48f669 | 2009-12-07 13:04:04 +0800 | [diff] [blame] | 1570 | FILL_COMMON_FIELDS(migrate_task_event, event, data); |
Mike Galbraith | 55ffb7a | 2009-10-10 14:46:04 +0200 | [diff] [blame] | 1571 | |
Xiao Guangrong | f48f669 | 2009-12-07 13:04:04 +0800 | [diff] [blame] | 1572 | FILL_ARRAY(migrate_task_event, comm, event, data); |
| 1573 | FILL_FIELD(migrate_task_event, pid, event, data); |
| 1574 | FILL_FIELD(migrate_task_event, prio, event, data); |
| 1575 | FILL_FIELD(migrate_task_event, cpu, event, data); |
Mike Galbraith | 55ffb7a | 2009-10-10 14:46:04 +0200 | [diff] [blame] | 1576 | |
| 1577 | if (trace_handler->migrate_task_event) |
Arnaldo Carvalho de Melo | b3165f4 | 2009-12-13 19:50:28 -0200 | [diff] [blame] | 1578 | trace_handler->migrate_task_event(&migrate_task_event, session, |
| 1579 | event, cpu, timestamp, thread); |
Mike Galbraith | 55ffb7a | 2009-10-10 14:46:04 +0200 | [diff] [blame] | 1580 | } |
| 1581 | |
| 1582 | static void |
Arnaldo Carvalho de Melo | b3165f4 | 2009-12-13 19:50:28 -0200 | [diff] [blame] | 1583 | process_raw_event(event_t *raw_event __used, struct perf_session *session, |
| 1584 | void *data, int cpu, u64 timestamp, struct thread *thread) |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1585 | { |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1586 | struct event *event; |
| 1587 | int type; |
| 1588 | |
Xiao Guangrong | d8bd9e0 | 2009-12-07 12:06:29 +0800 | [diff] [blame] | 1589 | |
Xiao Guangrong | f48f669 | 2009-12-07 13:04:04 +0800 | [diff] [blame] | 1590 | type = trace_parse_common_type(data); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1591 | event = trace_find_event(type); |
| 1592 | |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1593 | if (!strcmp(event->name, "sched_switch")) |
Arnaldo Carvalho de Melo | b3165f4 | 2009-12-13 19:50:28 -0200 | [diff] [blame] | 1594 | process_sched_switch_event(data, session, event, cpu, timestamp, thread); |
mingo | 39aeb52 | 2009-09-14 20:04:48 +0200 | [diff] [blame] | 1595 | if (!strcmp(event->name, "sched_stat_runtime")) |
Arnaldo Carvalho de Melo | b3165f4 | 2009-12-13 19:50:28 -0200 | [diff] [blame] | 1596 | process_sched_runtime_event(data, session, event, cpu, timestamp, thread); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1597 | if (!strcmp(event->name, "sched_wakeup")) |
Arnaldo Carvalho de Melo | b3165f4 | 2009-12-13 19:50:28 -0200 | [diff] [blame] | 1598 | process_sched_wakeup_event(data, session, event, cpu, timestamp, thread); |
Ingo Molnar | fbf9482 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1599 | if (!strcmp(event->name, "sched_wakeup_new")) |
Arnaldo Carvalho de Melo | b3165f4 | 2009-12-13 19:50:28 -0200 | [diff] [blame] | 1600 | process_sched_wakeup_event(data, session, event, cpu, timestamp, thread); |
Ingo Molnar | fbf9482 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1601 | if (!strcmp(event->name, "sched_process_fork")) |
Xiao Guangrong | f48f669 | 2009-12-07 13:04:04 +0800 | [diff] [blame] | 1602 | process_sched_fork_event(data, event, cpu, timestamp, thread); |
Ingo Molnar | fbf9482 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1603 | if (!strcmp(event->name, "sched_process_exit")) |
| 1604 | process_sched_exit_event(event, cpu, timestamp, thread); |
Mike Galbraith | 55ffb7a | 2009-10-10 14:46:04 +0200 | [diff] [blame] | 1605 | if (!strcmp(event->name, "sched_migrate_task")) |
Arnaldo Carvalho de Melo | b3165f4 | 2009-12-13 19:50:28 -0200 | [diff] [blame] | 1606 | process_sched_migrate_task_event(data, session, event, cpu, timestamp, thread); |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1607 | } |
| 1608 | |
Arnaldo Carvalho de Melo | b3165f4 | 2009-12-13 19:50:28 -0200 | [diff] [blame] | 1609 | static int process_sample_event(event_t *event, struct perf_session *session) |
Ingo Molnar | 0a02ad9 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1610 | { |
OGAWA Hirofumi | 180f95e | 2009-12-06 20:08:24 +0900 | [diff] [blame] | 1611 | struct sample_data data; |
Ingo Molnar | 0a02ad9 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1612 | struct thread *thread; |
Arnaldo Carvalho de Melo | a80deb6 | 2009-09-28 15:23:51 -0300 | [diff] [blame] | 1613 | |
Arnaldo Carvalho de Melo | c019879 | 2009-12-14 14:23:00 -0200 | [diff] [blame] | 1614 | if (!(session->sample_type & PERF_SAMPLE_RAW)) |
Arnaldo Carvalho de Melo | a80deb6 | 2009-09-28 15:23:51 -0300 | [diff] [blame] | 1615 | return 0; |
Ingo Molnar | 0a02ad9 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1616 | |
OGAWA Hirofumi | 180f95e | 2009-12-06 20:08:24 +0900 | [diff] [blame] | 1617 | memset(&data, 0, sizeof(data)); |
| 1618 | data.time = -1; |
| 1619 | data.cpu = -1; |
| 1620 | data.period = -1; |
Ingo Molnar | 0a02ad9 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1621 | |
Arnaldo Carvalho de Melo | c019879 | 2009-12-14 14:23:00 -0200 | [diff] [blame] | 1622 | event__parse_sample(event, session->sample_type, &data); |
Ingo Molnar | 0a02ad9 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1623 | |
Arnaldo Carvalho de Melo | 0d75503 | 2010-01-14 12:23:09 -0200 | [diff] [blame] | 1624 | dump_printf("(IP, %d): %d/%d: %#Lx period: %Ld\n", event->header.misc, |
| 1625 | data.pid, data.tid, data.ip, data.period); |
Ingo Molnar | 0a02ad9 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1626 | |
Arnaldo Carvalho de Melo | b3165f4 | 2009-12-13 19:50:28 -0200 | [diff] [blame] | 1627 | thread = perf_session__findnew(session, data.pid); |
Ingo Molnar | 0a02ad9 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1628 | if (thread == NULL) { |
Arnaldo Carvalho de Melo | 6beba7a | 2009-10-21 17:34:06 -0200 | [diff] [blame] | 1629 | pr_debug("problem processing %d event, skipping it.\n", |
| 1630 | event->header.type); |
Ingo Molnar | 0a02ad9 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1631 | return -1; |
| 1632 | } |
| 1633 | |
Julia Lawall | f39cdf2 | 2009-10-17 08:43:17 +0200 | [diff] [blame] | 1634 | dump_printf(" ... thread: %s:%d\n", thread->comm, thread->pid); |
| 1635 | |
OGAWA Hirofumi | 180f95e | 2009-12-06 20:08:24 +0900 | [diff] [blame] | 1636 | if (profile_cpu != -1 && profile_cpu != (int)data.cpu) |
Mike Galbraith | 55ffb7a | 2009-10-10 14:46:04 +0200 | [diff] [blame] | 1637 | return 0; |
| 1638 | |
Arnaldo Carvalho de Melo | b3165f4 | 2009-12-13 19:50:28 -0200 | [diff] [blame] | 1639 | process_raw_event(event, session, data.raw_data, data.cpu, data.time, thread); |
Ingo Molnar | 0a02ad9 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1640 | |
| 1641 | return 0; |
| 1642 | } |
| 1643 | |
Arnaldo Carvalho de Melo | 301a0b0 | 2009-12-13 19:50:25 -0200 | [diff] [blame] | 1644 | static struct perf_event_ops event_ops = { |
Frederic Weisbecker | a64eae7 | 2010-04-24 00:29:40 +0200 | [diff] [blame] | 1645 | .sample = process_sample_event, |
| 1646 | .comm = event__process_comm, |
Arnaldo Carvalho de Melo | cee75ac | 2010-05-14 13:16:55 -0300 | [diff] [blame] | 1647 | .lost = event__process_lost, |
Frederic Weisbecker | a64eae7 | 2010-04-24 00:29:40 +0200 | [diff] [blame] | 1648 | .ordered_samples = true, |
Frederic Weisbecker | 016e92f | 2009-10-07 12:47:31 +0200 | [diff] [blame] | 1649 | }; |
| 1650 | |
Ingo Molnar | 46f392c | 2009-09-12 10:08:34 +0200 | [diff] [blame] | 1651 | static int read_events(void) |
Ingo Molnar | 0a02ad9 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1652 | { |
Arnaldo Carvalho de Melo | d549c769 | 2009-12-27 21:37:02 -0200 | [diff] [blame] | 1653 | int err = -EINVAL; |
Tom Zanussi | 454c407 | 2010-05-01 01:41:20 -0500 | [diff] [blame] | 1654 | struct perf_session *session = perf_session__new(input_name, O_RDONLY, 0, false); |
Arnaldo Carvalho de Melo | 94c744b | 2009-12-11 21:24:02 -0200 | [diff] [blame] | 1655 | if (session == NULL) |
| 1656 | return -ENOMEM; |
| 1657 | |
Arnaldo Carvalho de Melo | cee75ac | 2010-05-14 13:16:55 -0300 | [diff] [blame] | 1658 | if (perf_session__has_traces(session, "record -R")) { |
Arnaldo Carvalho de Melo | d549c769 | 2009-12-27 21:37:02 -0200 | [diff] [blame] | 1659 | err = perf_session__process_events(session, &event_ops); |
Arnaldo Carvalho de Melo | cee75ac | 2010-05-14 13:16:55 -0300 | [diff] [blame] | 1660 | nr_events = session->hists.stats.nr_events[0]; |
| 1661 | nr_lost_events = session->hists.stats.total_lost; |
| 1662 | nr_lost_chunks = session->hists.stats.nr_events[PERF_RECORD_LOST]; |
| 1663 | } |
Arnaldo Carvalho de Melo | d549c769 | 2009-12-27 21:37:02 -0200 | [diff] [blame] | 1664 | |
Arnaldo Carvalho de Melo | 94c744b | 2009-12-11 21:24:02 -0200 | [diff] [blame] | 1665 | perf_session__delete(session); |
| 1666 | return err; |
Ingo Molnar | 0a02ad9 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1667 | } |
| 1668 | |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1669 | static void print_bad_events(void) |
| 1670 | { |
| 1671 | if (nr_unordered_timestamps && nr_timestamps) { |
| 1672 | printf(" INFO: %.3f%% unordered timestamps (%ld out of %ld)\n", |
| 1673 | (double)nr_unordered_timestamps/(double)nr_timestamps*100.0, |
| 1674 | nr_unordered_timestamps, nr_timestamps); |
| 1675 | } |
| 1676 | if (nr_lost_events && nr_events) { |
| 1677 | printf(" INFO: %.3f%% lost events (%ld out of %ld, in %ld chunks)\n", |
| 1678 | (double)nr_lost_events/(double)nr_events*100.0, |
| 1679 | nr_lost_events, nr_events, nr_lost_chunks); |
| 1680 | } |
| 1681 | if (nr_state_machine_bugs && nr_timestamps) { |
| 1682 | printf(" INFO: %.3f%% state machine bugs (%ld out of %ld)", |
| 1683 | (double)nr_state_machine_bugs/(double)nr_timestamps*100.0, |
| 1684 | nr_state_machine_bugs, nr_timestamps); |
| 1685 | if (nr_lost_events) |
| 1686 | printf(" (due to lost events?)"); |
| 1687 | printf("\n"); |
| 1688 | } |
| 1689 | if (nr_context_switch_bugs && nr_timestamps) { |
| 1690 | printf(" INFO: %.3f%% context switch bugs (%ld out of %ld)", |
| 1691 | (double)nr_context_switch_bugs/(double)nr_timestamps*100.0, |
| 1692 | nr_context_switch_bugs, nr_timestamps); |
| 1693 | if (nr_lost_events) |
| 1694 | printf(" (due to lost events?)"); |
| 1695 | printf("\n"); |
| 1696 | } |
| 1697 | } |
| 1698 | |
| 1699 | static void __cmd_lat(void) |
| 1700 | { |
| 1701 | struct rb_node *next; |
| 1702 | |
| 1703 | setup_pager(); |
| 1704 | read_events(); |
| 1705 | sort_lat(); |
| 1706 | |
Frederic Weisbecker | 3786310a | 2009-12-09 21:40:08 +0100 | [diff] [blame] | 1707 | printf("\n ---------------------------------------------------------------------------------------------------------------\n"); |
| 1708 | printf(" Task | Runtime ms | Switches | Average delay ms | Maximum delay ms | Maximum delay at |\n"); |
| 1709 | printf(" ---------------------------------------------------------------------------------------------------------------\n"); |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1710 | |
| 1711 | next = rb_first(&sorted_atom_root); |
| 1712 | |
| 1713 | while (next) { |
| 1714 | struct work_atoms *work_list; |
| 1715 | |
| 1716 | work_list = rb_entry(next, struct work_atoms, node); |
| 1717 | output_lat_thread(work_list); |
| 1718 | next = rb_next(next); |
| 1719 | } |
| 1720 | |
| 1721 | printf(" -----------------------------------------------------------------------------------------\n"); |
| 1722 | printf(" TOTAL: |%11.3f ms |%9Ld |\n", |
| 1723 | (double)all_runtime/1e6, all_count); |
| 1724 | |
| 1725 | printf(" ---------------------------------------------------\n"); |
| 1726 | |
| 1727 | print_bad_events(); |
| 1728 | printf("\n"); |
| 1729 | |
| 1730 | } |
| 1731 | |
| 1732 | static struct trace_sched_handler map_ops = { |
| 1733 | .wakeup_event = NULL, |
| 1734 | .switch_event = map_switch_event, |
| 1735 | .runtime_event = NULL, |
| 1736 | .fork_event = NULL, |
| 1737 | }; |
| 1738 | |
| 1739 | static void __cmd_map(void) |
| 1740 | { |
Ingo Molnar | 40749d0 | 2009-09-17 18:24:55 +0200 | [diff] [blame] | 1741 | max_cpu = sysconf(_SC_NPROCESSORS_CONF); |
| 1742 | |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1743 | setup_pager(); |
| 1744 | read_events(); |
| 1745 | print_bad_events(); |
| 1746 | } |
| 1747 | |
| 1748 | static void __cmd_replay(void) |
| 1749 | { |
| 1750 | unsigned long i; |
| 1751 | |
| 1752 | calibrate_run_measurement_overhead(); |
| 1753 | calibrate_sleep_measurement_overhead(); |
| 1754 | |
| 1755 | test_calibrations(); |
| 1756 | |
| 1757 | read_events(); |
| 1758 | |
| 1759 | printf("nr_run_events: %ld\n", nr_run_events); |
| 1760 | printf("nr_sleep_events: %ld\n", nr_sleep_events); |
| 1761 | printf("nr_wakeup_events: %ld\n", nr_wakeup_events); |
| 1762 | |
| 1763 | if (targetless_wakeups) |
| 1764 | printf("target-less wakeups: %ld\n", targetless_wakeups); |
| 1765 | if (multitarget_wakeups) |
| 1766 | printf("multi-target wakeups: %ld\n", multitarget_wakeups); |
| 1767 | if (nr_run_events_optimized) |
| 1768 | printf("run atoms optimized: %ld\n", |
| 1769 | nr_run_events_optimized); |
| 1770 | |
| 1771 | print_task_traces(); |
| 1772 | add_cross_task_wakeups(); |
| 1773 | |
| 1774 | create_tasks(); |
| 1775 | printf("------------------------------------------------------------\n"); |
| 1776 | for (i = 0; i < replay_repeat; i++) |
| 1777 | run_one_test(); |
| 1778 | } |
| 1779 | |
| 1780 | |
Ingo Molnar | 46f392c | 2009-09-12 10:08:34 +0200 | [diff] [blame] | 1781 | static const char * const sched_usage[] = { |
Mike Galbraith | 4b77a72 | 2009-09-18 08:22:24 +0200 | [diff] [blame] | 1782 | "perf sched [<options>] {record|latency|map|replay|trace}", |
Ingo Molnar | 0a02ad9 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1783 | NULL |
| 1784 | }; |
| 1785 | |
Ingo Molnar | f2858d8 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1786 | static const struct option sched_options[] = { |
Mike Galbraith | 4b77a72 | 2009-09-18 08:22:24 +0200 | [diff] [blame] | 1787 | OPT_STRING('i', "input", &input_name, "file", |
| 1788 | "input file name"), |
Ian Munsie | c055564 | 2010-04-13 18:37:33 +1000 | [diff] [blame] | 1789 | OPT_INCR('v', "verbose", &verbose, |
Ingo Molnar | f2858d8 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1790 | "be more verbose (show symbol address, etc)"), |
Ingo Molnar | 0a02ad9 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1791 | OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, |
| 1792 | "dump raw trace in ASCII"), |
Ingo Molnar | f2858d8 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1793 | OPT_END() |
| 1794 | }; |
| 1795 | |
| 1796 | static const char * const latency_usage[] = { |
| 1797 | "perf sched latency [<options>]", |
| 1798 | NULL |
| 1799 | }; |
| 1800 | |
| 1801 | static const struct option latency_options[] = { |
Frederic Weisbecker | daa1d7a | 2009-09-13 03:36:29 +0200 | [diff] [blame] | 1802 | OPT_STRING('s', "sort", &sort_order, "key[,key2...]", |
| 1803 | "sort by key(s): runtime, switch, avg, max"), |
Ian Munsie | c055564 | 2010-04-13 18:37:33 +1000 | [diff] [blame] | 1804 | OPT_INCR('v', "verbose", &verbose, |
Ingo Molnar | 0a02ad9 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1805 | "be more verbose (show symbol address, etc)"), |
Mike Galbraith | 55ffb7a | 2009-10-10 14:46:04 +0200 | [diff] [blame] | 1806 | OPT_INTEGER('C', "CPU", &profile_cpu, |
| 1807 | "CPU to profile on"), |
Ingo Molnar | f2858d8 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1808 | OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, |
| 1809 | "dump raw trace in ASCII"), |
| 1810 | OPT_END() |
| 1811 | }; |
| 1812 | |
| 1813 | static const char * const replay_usage[] = { |
| 1814 | "perf sched replay [<options>]", |
| 1815 | NULL |
| 1816 | }; |
| 1817 | |
| 1818 | static const struct option replay_options[] = { |
Arnaldo Carvalho de Melo | 1967936 | 2010-05-17 15:39:16 -0300 | [diff] [blame] | 1819 | OPT_UINTEGER('r', "repeat", &replay_repeat, |
| 1820 | "repeat the workload replay N times (-1: infinite)"), |
Ian Munsie | c055564 | 2010-04-13 18:37:33 +1000 | [diff] [blame] | 1821 | OPT_INCR('v', "verbose", &verbose, |
Ingo Molnar | f2858d8 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1822 | "be more verbose (show symbol address, etc)"), |
| 1823 | OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, |
| 1824 | "dump raw trace in ASCII"), |
Ingo Molnar | 0a02ad9 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1825 | OPT_END() |
| 1826 | }; |
| 1827 | |
Frederic Weisbecker | daa1d7a | 2009-09-13 03:36:29 +0200 | [diff] [blame] | 1828 | static void setup_sorting(void) |
| 1829 | { |
| 1830 | char *tmp, *tok, *str = strdup(sort_order); |
| 1831 | |
| 1832 | for (tok = strtok_r(str, ", ", &tmp); |
| 1833 | tok; tok = strtok_r(NULL, ", ", &tmp)) { |
| 1834 | if (sort_dimension__add(tok, &sort_list) < 0) { |
| 1835 | error("Unknown --sort key: `%s'", tok); |
Ingo Molnar | f2858d8 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1836 | usage_with_options(latency_usage, latency_options); |
Frederic Weisbecker | daa1d7a | 2009-09-13 03:36:29 +0200 | [diff] [blame] | 1837 | } |
| 1838 | } |
| 1839 | |
| 1840 | free(str); |
| 1841 | |
Randy Dunlap | cbef79a | 2009-10-05 13:17:29 -0700 | [diff] [blame] | 1842 | sort_dimension__add("pid", &cmp_pid); |
Frederic Weisbecker | daa1d7a | 2009-09-13 03:36:29 +0200 | [diff] [blame] | 1843 | } |
| 1844 | |
Ingo Molnar | 1fc35b2 | 2009-09-13 09:44:29 +0200 | [diff] [blame] | 1845 | static const char *record_args[] = { |
| 1846 | "record", |
| 1847 | "-a", |
| 1848 | "-R", |
Ingo Molnar | ea57c4f | 2009-09-13 18:15:54 +0200 | [diff] [blame] | 1849 | "-f", |
Ingo Molnar | dc02bf7 | 2009-09-16 13:45:00 +0200 | [diff] [blame] | 1850 | "-m", "1024", |
Ingo Molnar | 1fc35b2 | 2009-09-13 09:44:29 +0200 | [diff] [blame] | 1851 | "-c", "1", |
| 1852 | "-e", "sched:sched_switch:r", |
| 1853 | "-e", "sched:sched_stat_wait:r", |
| 1854 | "-e", "sched:sched_stat_sleep:r", |
| 1855 | "-e", "sched:sched_stat_iowait:r", |
Ingo Molnar | ea57c4f | 2009-09-13 18:15:54 +0200 | [diff] [blame] | 1856 | "-e", "sched:sched_stat_runtime:r", |
Ingo Molnar | 1fc35b2 | 2009-09-13 09:44:29 +0200 | [diff] [blame] | 1857 | "-e", "sched:sched_process_exit:r", |
| 1858 | "-e", "sched:sched_process_fork:r", |
| 1859 | "-e", "sched:sched_wakeup:r", |
| 1860 | "-e", "sched:sched_migrate_task:r", |
| 1861 | }; |
| 1862 | |
| 1863 | static int __cmd_record(int argc, const char **argv) |
| 1864 | { |
| 1865 | unsigned int rec_argc, i, j; |
| 1866 | const char **rec_argv; |
| 1867 | |
| 1868 | rec_argc = ARRAY_SIZE(record_args) + argc - 1; |
| 1869 | rec_argv = calloc(rec_argc + 1, sizeof(char *)); |
| 1870 | |
| 1871 | for (i = 0; i < ARRAY_SIZE(record_args); i++) |
| 1872 | rec_argv[i] = strdup(record_args[i]); |
| 1873 | |
| 1874 | for (j = 1; j < (unsigned int)argc; j++, i++) |
| 1875 | rec_argv[i] = argv[j]; |
| 1876 | |
| 1877 | BUG_ON(i != rec_argc); |
| 1878 | |
| 1879 | return cmd_record(i, rec_argv, NULL); |
| 1880 | } |
| 1881 | |
Ingo Molnar | 0a02ad9 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1882 | int cmd_sched(int argc, const char **argv, const char *prefix __used) |
| 1883 | { |
Ingo Molnar | f2858d8 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1884 | argc = parse_options(argc, argv, sched_options, sched_usage, |
| 1885 | PARSE_OPT_STOP_AT_NON_OPTION); |
| 1886 | if (!argc) |
| 1887 | usage_with_options(sched_usage, sched_options); |
| 1888 | |
Xiao Guangrong | c0777c5 | 2009-12-07 12:04:49 +0800 | [diff] [blame] | 1889 | /* |
| 1890 | * Aliased to 'perf trace' for now: |
| 1891 | */ |
| 1892 | if (!strcmp(argv[0], "trace")) |
| 1893 | return cmd_trace(argc, argv, prefix); |
| 1894 | |
Arnaldo Carvalho de Melo | 75be6cf | 2009-12-15 20:04:39 -0200 | [diff] [blame] | 1895 | symbol__init(); |
Ingo Molnar | 1fc35b2 | 2009-09-13 09:44:29 +0200 | [diff] [blame] | 1896 | if (!strncmp(argv[0], "rec", 3)) { |
| 1897 | return __cmd_record(argc, argv); |
| 1898 | } else if (!strncmp(argv[0], "lat", 3)) { |
Ingo Molnar | f2858d8 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1899 | trace_handler = &lat_ops; |
| 1900 | if (argc > 1) { |
| 1901 | argc = parse_options(argc, argv, latency_options, latency_usage, 0); |
| 1902 | if (argc) |
| 1903 | usage_with_options(latency_usage, latency_options); |
Ingo Molnar | f2858d8 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1904 | } |
Ingo Molnar | b5fae12 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1905 | setup_sorting(); |
Ingo Molnar | f2858d8 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1906 | __cmd_lat(); |
Ingo Molnar | 0ec04e1 | 2009-09-16 17:40:48 +0200 | [diff] [blame] | 1907 | } else if (!strcmp(argv[0], "map")) { |
| 1908 | trace_handler = &map_ops; |
| 1909 | setup_sorting(); |
| 1910 | __cmd_map(); |
Ingo Molnar | f2858d8 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1911 | } else if (!strncmp(argv[0], "rep", 3)) { |
| 1912 | trace_handler = &replay_ops; |
| 1913 | if (argc) { |
| 1914 | argc = parse_options(argc, argv, replay_options, replay_usage, 0); |
| 1915 | if (argc) |
| 1916 | usage_with_options(replay_usage, replay_options); |
| 1917 | } |
| 1918 | __cmd_replay(); |
| 1919 | } else { |
| 1920 | usage_with_options(sched_usage, sched_options); |
Ingo Molnar | 0a02ad9 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1921 | } |
| 1922 | |
Ingo Molnar | ec15676 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1923 | return 0; |
Ingo Molnar | 0a02ad9 | 2009-09-11 12:12:54 +0200 | [diff] [blame] | 1924 | } |