Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 1 | #include "builtin.h" |
| 2 | #include "perf.h" |
| 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" |
| 9 | |
| 10 | #include "util/parse-options.h" |
| 11 | #include "util/trace-event.h" |
| 12 | |
| 13 | #include "util/debug.h" |
| 14 | #include "util/session.h" |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 15 | #include "util/tool.h" |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 16 | |
| 17 | #include <sys/types.h> |
| 18 | #include <sys/prctl.h> |
| 19 | #include <semaphore.h> |
| 20 | #include <pthread.h> |
| 21 | #include <math.h> |
| 22 | #include <limits.h> |
| 23 | |
| 24 | #include <linux/list.h> |
| 25 | #include <linux/hash.h> |
| 26 | |
Hitoshi Mitake | e4cef1f | 2010-04-21 21:23:54 +0900 | [diff] [blame] | 27 | static struct perf_session *session; |
| 28 | |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 29 | /* based on kernel/lockdep.c */ |
| 30 | #define LOCKHASH_BITS 12 |
| 31 | #define LOCKHASH_SIZE (1UL << LOCKHASH_BITS) |
| 32 | |
| 33 | static struct list_head lockhash_table[LOCKHASH_SIZE]; |
| 34 | |
| 35 | #define __lockhashfn(key) hash_long((unsigned long)key, LOCKHASH_BITS) |
| 36 | #define lockhashentry(key) (lockhash_table + __lockhashfn((key))) |
| 37 | |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 38 | struct lock_stat { |
Ingo Molnar | 59f411b | 2010-01-31 08:27:58 +0100 | [diff] [blame] | 39 | struct list_head hash_entry; |
| 40 | struct rb_node rb; /* used for sorting */ |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 41 | |
Ingo Molnar | 59f411b | 2010-01-31 08:27:58 +0100 | [diff] [blame] | 42 | /* |
| 43 | * FIXME: raw_field_value() returns unsigned long long, |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 44 | * so address of lockdep_map should be dealed as 64bit. |
Ingo Molnar | 59f411b | 2010-01-31 08:27:58 +0100 | [diff] [blame] | 45 | * Is there more better solution? |
| 46 | */ |
| 47 | void *addr; /* address of lockdep_map, used as ID */ |
| 48 | char *name; /* for strcpy(), we cannot use const */ |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 49 | |
Ingo Molnar | 59f411b | 2010-01-31 08:27:58 +0100 | [diff] [blame] | 50 | unsigned int nr_acquire; |
Hitoshi Mitake | e4cef1f | 2010-04-21 21:23:54 +0900 | [diff] [blame] | 51 | unsigned int nr_acquired; |
Ingo Molnar | 59f411b | 2010-01-31 08:27:58 +0100 | [diff] [blame] | 52 | unsigned int nr_contended; |
| 53 | unsigned int nr_release; |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 54 | |
Hitoshi Mitake | e4cef1f | 2010-04-21 21:23:54 +0900 | [diff] [blame] | 55 | unsigned int nr_readlock; |
| 56 | unsigned int nr_trylock; |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 57 | /* these times are in nano sec. */ |
Ingo Molnar | 59f411b | 2010-01-31 08:27:58 +0100 | [diff] [blame] | 58 | u64 wait_time_total; |
| 59 | u64 wait_time_min; |
| 60 | u64 wait_time_max; |
Hitoshi Mitake | e4cef1f | 2010-04-21 21:23:54 +0900 | [diff] [blame] | 61 | |
| 62 | int discard; /* flag of blacklist */ |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 63 | }; |
| 64 | |
Hitoshi Mitake | e4cef1f | 2010-04-21 21:23:54 +0900 | [diff] [blame] | 65 | /* |
| 66 | * States of lock_seq_stat |
| 67 | * |
| 68 | * UNINITIALIZED is required for detecting first event of acquire. |
| 69 | * As the nature of lock events, there is no guarantee |
| 70 | * that the first event for the locks are acquire, |
| 71 | * it can be acquired, contended or release. |
| 72 | */ |
| 73 | #define SEQ_STATE_UNINITIALIZED 0 /* initial state */ |
| 74 | #define SEQ_STATE_RELEASED 1 |
| 75 | #define SEQ_STATE_ACQUIRING 2 |
| 76 | #define SEQ_STATE_ACQUIRED 3 |
| 77 | #define SEQ_STATE_READ_ACQUIRED 4 |
| 78 | #define SEQ_STATE_CONTENDED 5 |
| 79 | |
| 80 | /* |
| 81 | * MAX_LOCK_DEPTH |
| 82 | * Imported from include/linux/sched.h. |
| 83 | * Should this be synchronized? |
| 84 | */ |
| 85 | #define MAX_LOCK_DEPTH 48 |
| 86 | |
| 87 | /* |
| 88 | * struct lock_seq_stat: |
| 89 | * Place to put on state of one lock sequence |
| 90 | * 1) acquire -> acquired -> release |
| 91 | * 2) acquire -> contended -> acquired -> release |
| 92 | * 3) acquire (with read or try) -> release |
| 93 | * 4) Are there other patterns? |
| 94 | */ |
| 95 | struct lock_seq_stat { |
| 96 | struct list_head list; |
| 97 | int state; |
| 98 | u64 prev_event_time; |
| 99 | void *addr; |
| 100 | |
| 101 | int read_count; |
| 102 | }; |
| 103 | |
| 104 | struct thread_stat { |
| 105 | struct rb_node rb; |
| 106 | |
| 107 | u32 tid; |
| 108 | struct list_head seq_list; |
| 109 | }; |
| 110 | |
| 111 | static struct rb_root thread_stats; |
| 112 | |
| 113 | static struct thread_stat *thread_stat_find(u32 tid) |
| 114 | { |
| 115 | struct rb_node *node; |
| 116 | struct thread_stat *st; |
| 117 | |
| 118 | node = thread_stats.rb_node; |
| 119 | while (node) { |
| 120 | st = container_of(node, struct thread_stat, rb); |
| 121 | if (st->tid == tid) |
| 122 | return st; |
| 123 | else if (tid < st->tid) |
| 124 | node = node->rb_left; |
| 125 | else |
| 126 | node = node->rb_right; |
| 127 | } |
| 128 | |
| 129 | return NULL; |
| 130 | } |
| 131 | |
| 132 | static void thread_stat_insert(struct thread_stat *new) |
| 133 | { |
| 134 | struct rb_node **rb = &thread_stats.rb_node; |
| 135 | struct rb_node *parent = NULL; |
| 136 | struct thread_stat *p; |
| 137 | |
| 138 | while (*rb) { |
| 139 | p = container_of(*rb, struct thread_stat, rb); |
| 140 | parent = *rb; |
| 141 | |
| 142 | if (new->tid < p->tid) |
| 143 | rb = &(*rb)->rb_left; |
| 144 | else if (new->tid > p->tid) |
| 145 | rb = &(*rb)->rb_right; |
| 146 | else |
| 147 | BUG_ON("inserting invalid thread_stat\n"); |
| 148 | } |
| 149 | |
| 150 | rb_link_node(&new->rb, parent, rb); |
| 151 | rb_insert_color(&new->rb, &thread_stats); |
| 152 | } |
| 153 | |
| 154 | static struct thread_stat *thread_stat_findnew_after_first(u32 tid) |
| 155 | { |
| 156 | struct thread_stat *st; |
| 157 | |
| 158 | st = thread_stat_find(tid); |
| 159 | if (st) |
| 160 | return st; |
| 161 | |
| 162 | st = zalloc(sizeof(struct thread_stat)); |
| 163 | if (!st) |
| 164 | die("memory allocation failed\n"); |
| 165 | |
| 166 | st->tid = tid; |
| 167 | INIT_LIST_HEAD(&st->seq_list); |
| 168 | |
| 169 | thread_stat_insert(st); |
| 170 | |
| 171 | return st; |
| 172 | } |
| 173 | |
| 174 | static struct thread_stat *thread_stat_findnew_first(u32 tid); |
| 175 | static struct thread_stat *(*thread_stat_findnew)(u32 tid) = |
| 176 | thread_stat_findnew_first; |
| 177 | |
| 178 | static struct thread_stat *thread_stat_findnew_first(u32 tid) |
| 179 | { |
| 180 | struct thread_stat *st; |
| 181 | |
| 182 | st = zalloc(sizeof(struct thread_stat)); |
| 183 | if (!st) |
| 184 | die("memory allocation failed\n"); |
| 185 | st->tid = tid; |
| 186 | INIT_LIST_HEAD(&st->seq_list); |
| 187 | |
| 188 | rb_link_node(&st->rb, NULL, &thread_stats.rb_node); |
| 189 | rb_insert_color(&st->rb, &thread_stats); |
| 190 | |
| 191 | thread_stat_findnew = thread_stat_findnew_after_first; |
| 192 | return st; |
| 193 | } |
| 194 | |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 195 | /* build simple key function one is bigger than two */ |
Ingo Molnar | 59f411b | 2010-01-31 08:27:58 +0100 | [diff] [blame] | 196 | #define SINGLE_KEY(member) \ |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 197 | static int lock_stat_key_ ## member(struct lock_stat *one, \ |
| 198 | struct lock_stat *two) \ |
| 199 | { \ |
| 200 | return one->member > two->member; \ |
| 201 | } |
| 202 | |
| 203 | SINGLE_KEY(nr_acquired) |
| 204 | SINGLE_KEY(nr_contended) |
| 205 | SINGLE_KEY(wait_time_total) |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 206 | SINGLE_KEY(wait_time_max) |
| 207 | |
Marcin Slusarz | 9df03ab | 2011-02-22 18:47:15 +0100 | [diff] [blame] | 208 | static int lock_stat_key_wait_time_min(struct lock_stat *one, |
| 209 | struct lock_stat *two) |
| 210 | { |
| 211 | u64 s1 = one->wait_time_min; |
| 212 | u64 s2 = two->wait_time_min; |
| 213 | if (s1 == ULLONG_MAX) |
| 214 | s1 = 0; |
| 215 | if (s2 == ULLONG_MAX) |
| 216 | s2 = 0; |
| 217 | return s1 > s2; |
| 218 | } |
| 219 | |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 220 | struct lock_key { |
| 221 | /* |
| 222 | * name: the value for specify by user |
| 223 | * this should be simpler than raw name of member |
| 224 | * e.g. nr_acquired -> acquired, wait_time_total -> wait_total |
| 225 | */ |
Ingo Molnar | 59f411b | 2010-01-31 08:27:58 +0100 | [diff] [blame] | 226 | const char *name; |
| 227 | int (*key)(struct lock_stat*, struct lock_stat*); |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 228 | }; |
| 229 | |
Ingo Molnar | 59f411b | 2010-01-31 08:27:58 +0100 | [diff] [blame] | 230 | static const char *sort_key = "acquired"; |
| 231 | |
| 232 | static int (*compare)(struct lock_stat *, struct lock_stat *); |
| 233 | |
| 234 | static struct rb_root result; /* place to store sorted data */ |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 235 | |
| 236 | #define DEF_KEY_LOCK(name, fn_suffix) \ |
| 237 | { #name, lock_stat_key_ ## fn_suffix } |
| 238 | struct lock_key keys[] = { |
| 239 | DEF_KEY_LOCK(acquired, nr_acquired), |
| 240 | DEF_KEY_LOCK(contended, nr_contended), |
| 241 | DEF_KEY_LOCK(wait_total, wait_time_total), |
| 242 | DEF_KEY_LOCK(wait_min, wait_time_min), |
| 243 | DEF_KEY_LOCK(wait_max, wait_time_max), |
| 244 | |
| 245 | /* extra comparisons much complicated should be here */ |
| 246 | |
| 247 | { NULL, NULL } |
| 248 | }; |
| 249 | |
| 250 | static void select_key(void) |
| 251 | { |
| 252 | int i; |
| 253 | |
| 254 | for (i = 0; keys[i].name; i++) { |
| 255 | if (!strcmp(keys[i].name, sort_key)) { |
| 256 | compare = keys[i].key; |
| 257 | return; |
| 258 | } |
| 259 | } |
| 260 | |
| 261 | die("Unknown compare key:%s\n", sort_key); |
| 262 | } |
| 263 | |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 264 | static void insert_to_result(struct lock_stat *st, |
Ingo Molnar | 59f411b | 2010-01-31 08:27:58 +0100 | [diff] [blame] | 265 | int (*bigger)(struct lock_stat *, struct lock_stat *)) |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 266 | { |
| 267 | struct rb_node **rb = &result.rb_node; |
| 268 | struct rb_node *parent = NULL; |
| 269 | struct lock_stat *p; |
| 270 | |
| 271 | while (*rb) { |
| 272 | p = container_of(*rb, struct lock_stat, rb); |
| 273 | parent = *rb; |
| 274 | |
| 275 | if (bigger(st, p)) |
| 276 | rb = &(*rb)->rb_left; |
| 277 | else |
| 278 | rb = &(*rb)->rb_right; |
| 279 | } |
| 280 | |
| 281 | rb_link_node(&st->rb, parent, rb); |
| 282 | rb_insert_color(&st->rb, &result); |
| 283 | } |
| 284 | |
| 285 | /* returns left most element of result, and erase it */ |
| 286 | static struct lock_stat *pop_from_result(void) |
| 287 | { |
| 288 | struct rb_node *node = result.rb_node; |
| 289 | |
| 290 | if (!node) |
| 291 | return NULL; |
| 292 | |
| 293 | while (node->rb_left) |
| 294 | node = node->rb_left; |
| 295 | |
| 296 | rb_erase(node, &result); |
| 297 | return container_of(node, struct lock_stat, rb); |
| 298 | } |
| 299 | |
Ingo Molnar | 59f411b | 2010-01-31 08:27:58 +0100 | [diff] [blame] | 300 | static struct lock_stat *lock_stat_findnew(void *addr, const char *name) |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 301 | { |
| 302 | struct list_head *entry = lockhashentry(addr); |
| 303 | struct lock_stat *ret, *new; |
| 304 | |
| 305 | list_for_each_entry(ret, entry, hash_entry) { |
| 306 | if (ret->addr == addr) |
| 307 | return ret; |
| 308 | } |
| 309 | |
| 310 | new = zalloc(sizeof(struct lock_stat)); |
| 311 | if (!new) |
| 312 | goto alloc_failed; |
| 313 | |
| 314 | new->addr = addr; |
| 315 | new->name = zalloc(sizeof(char) * strlen(name) + 1); |
| 316 | if (!new->name) |
| 317 | goto alloc_failed; |
| 318 | strcpy(new->name, name); |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 319 | |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 320 | new->wait_time_min = ULLONG_MAX; |
| 321 | |
| 322 | list_add(&new->hash_entry, entry); |
| 323 | return new; |
| 324 | |
| 325 | alloc_failed: |
| 326 | die("memory allocation failed\n"); |
| 327 | } |
| 328 | |
Robert Richter | efad141 | 2011-12-07 10:02:54 +0100 | [diff] [blame] | 329 | static const char *input_name; |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 330 | |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 331 | struct raw_event_sample { |
Ingo Molnar | 59f411b | 2010-01-31 08:27:58 +0100 | [diff] [blame] | 332 | u32 size; |
| 333 | char data[0]; |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 334 | }; |
| 335 | |
| 336 | struct trace_acquire_event { |
Ingo Molnar | 59f411b | 2010-01-31 08:27:58 +0100 | [diff] [blame] | 337 | void *addr; |
| 338 | const char *name; |
Hitoshi Mitake | e4cef1f | 2010-04-21 21:23:54 +0900 | [diff] [blame] | 339 | int flag; |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 340 | }; |
| 341 | |
| 342 | struct trace_acquired_event { |
Ingo Molnar | 59f411b | 2010-01-31 08:27:58 +0100 | [diff] [blame] | 343 | void *addr; |
| 344 | const char *name; |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 345 | }; |
| 346 | |
| 347 | struct trace_contended_event { |
Ingo Molnar | 59f411b | 2010-01-31 08:27:58 +0100 | [diff] [blame] | 348 | void *addr; |
| 349 | const char *name; |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 350 | }; |
| 351 | |
| 352 | struct trace_release_event { |
Ingo Molnar | 59f411b | 2010-01-31 08:27:58 +0100 | [diff] [blame] | 353 | void *addr; |
| 354 | const char *name; |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 355 | }; |
| 356 | |
| 357 | struct trace_lock_handler { |
| 358 | void (*acquire_event)(struct trace_acquire_event *, |
| 359 | struct event *, |
| 360 | int cpu, |
| 361 | u64 timestamp, |
| 362 | struct thread *thread); |
| 363 | |
| 364 | void (*acquired_event)(struct trace_acquired_event *, |
| 365 | struct event *, |
| 366 | int cpu, |
| 367 | u64 timestamp, |
| 368 | struct thread *thread); |
| 369 | |
| 370 | void (*contended_event)(struct trace_contended_event *, |
| 371 | struct event *, |
| 372 | int cpu, |
| 373 | u64 timestamp, |
| 374 | struct thread *thread); |
| 375 | |
| 376 | void (*release_event)(struct trace_release_event *, |
| 377 | struct event *, |
| 378 | int cpu, |
| 379 | u64 timestamp, |
| 380 | struct thread *thread); |
| 381 | }; |
| 382 | |
Hitoshi Mitake | e4cef1f | 2010-04-21 21:23:54 +0900 | [diff] [blame] | 383 | static struct lock_seq_stat *get_seq(struct thread_stat *ts, void *addr) |
| 384 | { |
| 385 | struct lock_seq_stat *seq; |
| 386 | |
| 387 | list_for_each_entry(seq, &ts->seq_list, list) { |
| 388 | if (seq->addr == addr) |
| 389 | return seq; |
| 390 | } |
| 391 | |
| 392 | seq = zalloc(sizeof(struct lock_seq_stat)); |
| 393 | if (!seq) |
| 394 | die("Not enough memory\n"); |
| 395 | seq->state = SEQ_STATE_UNINITIALIZED; |
| 396 | seq->addr = addr; |
| 397 | |
| 398 | list_add(&seq->list, &ts->seq_list); |
| 399 | return seq; |
| 400 | } |
| 401 | |
Frederic Weisbecker | 10350ec | 2010-05-05 23:47:28 +0200 | [diff] [blame] | 402 | enum broken_state { |
| 403 | BROKEN_ACQUIRE, |
| 404 | BROKEN_ACQUIRED, |
| 405 | BROKEN_CONTENDED, |
| 406 | BROKEN_RELEASE, |
| 407 | BROKEN_MAX, |
| 408 | }; |
| 409 | |
| 410 | static int bad_hist[BROKEN_MAX]; |
Hitoshi Mitake | e4cef1f | 2010-04-21 21:23:54 +0900 | [diff] [blame] | 411 | |
Frederic Weisbecker | 84c7a21 | 2010-05-05 23:57:25 +0200 | [diff] [blame] | 412 | enum acquire_flags { |
| 413 | TRY_LOCK = 1, |
| 414 | READ_LOCK = 2, |
| 415 | }; |
| 416 | |
Ingo Molnar | 59f411b | 2010-01-31 08:27:58 +0100 | [diff] [blame] | 417 | static void |
| 418 | report_lock_acquire_event(struct trace_acquire_event *acquire_event, |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 419 | struct event *__event __used, |
| 420 | int cpu __used, |
Hitoshi Mitake | e4cef1f | 2010-04-21 21:23:54 +0900 | [diff] [blame] | 421 | u64 timestamp __used, |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 422 | struct thread *thread __used) |
| 423 | { |
Hitoshi Mitake | e4cef1f | 2010-04-21 21:23:54 +0900 | [diff] [blame] | 424 | struct lock_stat *ls; |
| 425 | struct thread_stat *ts; |
| 426 | struct lock_seq_stat *seq; |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 427 | |
Hitoshi Mitake | e4cef1f | 2010-04-21 21:23:54 +0900 | [diff] [blame] | 428 | ls = lock_stat_findnew(acquire_event->addr, acquire_event->name); |
| 429 | if (ls->discard) |
| 430 | return; |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 431 | |
Hitoshi Mitake | e4cef1f | 2010-04-21 21:23:54 +0900 | [diff] [blame] | 432 | ts = thread_stat_findnew(thread->pid); |
| 433 | seq = get_seq(ts, acquire_event->addr); |
| 434 | |
| 435 | switch (seq->state) { |
| 436 | case SEQ_STATE_UNINITIALIZED: |
| 437 | case SEQ_STATE_RELEASED: |
| 438 | if (!acquire_event->flag) { |
| 439 | seq->state = SEQ_STATE_ACQUIRING; |
| 440 | } else { |
Frederic Weisbecker | 84c7a21 | 2010-05-05 23:57:25 +0200 | [diff] [blame] | 441 | if (acquire_event->flag & TRY_LOCK) |
Hitoshi Mitake | e4cef1f | 2010-04-21 21:23:54 +0900 | [diff] [blame] | 442 | ls->nr_trylock++; |
Frederic Weisbecker | 84c7a21 | 2010-05-05 23:57:25 +0200 | [diff] [blame] | 443 | if (acquire_event->flag & READ_LOCK) |
Hitoshi Mitake | e4cef1f | 2010-04-21 21:23:54 +0900 | [diff] [blame] | 444 | ls->nr_readlock++; |
| 445 | seq->state = SEQ_STATE_READ_ACQUIRED; |
| 446 | seq->read_count = 1; |
| 447 | ls->nr_acquired++; |
| 448 | } |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 449 | break; |
Hitoshi Mitake | e4cef1f | 2010-04-21 21:23:54 +0900 | [diff] [blame] | 450 | case SEQ_STATE_READ_ACQUIRED: |
Frederic Weisbecker | 84c7a21 | 2010-05-05 23:57:25 +0200 | [diff] [blame] | 451 | if (acquire_event->flag & READ_LOCK) { |
Hitoshi Mitake | e4cef1f | 2010-04-21 21:23:54 +0900 | [diff] [blame] | 452 | seq->read_count++; |
| 453 | ls->nr_acquired++; |
| 454 | goto end; |
| 455 | } else { |
| 456 | goto broken; |
| 457 | } |
| 458 | break; |
| 459 | case SEQ_STATE_ACQUIRED: |
| 460 | case SEQ_STATE_ACQUIRING: |
| 461 | case SEQ_STATE_CONTENDED: |
| 462 | broken: |
| 463 | /* broken lock sequence, discard it */ |
| 464 | ls->discard = 1; |
Frederic Weisbecker | 10350ec | 2010-05-05 23:47:28 +0200 | [diff] [blame] | 465 | bad_hist[BROKEN_ACQUIRE]++; |
Hitoshi Mitake | e4cef1f | 2010-04-21 21:23:54 +0900 | [diff] [blame] | 466 | list_del(&seq->list); |
| 467 | free(seq); |
| 468 | goto end; |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 469 | break; |
| 470 | default: |
Hitoshi Mitake | e4cef1f | 2010-04-21 21:23:54 +0900 | [diff] [blame] | 471 | BUG_ON("Unknown state of lock sequence found!\n"); |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 472 | break; |
| 473 | } |
| 474 | |
Hitoshi Mitake | e4cef1f | 2010-04-21 21:23:54 +0900 | [diff] [blame] | 475 | ls->nr_acquire++; |
| 476 | seq->prev_event_time = timestamp; |
| 477 | end: |
| 478 | return; |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 479 | } |
| 480 | |
Ingo Molnar | 59f411b | 2010-01-31 08:27:58 +0100 | [diff] [blame] | 481 | static void |
| 482 | report_lock_acquired_event(struct trace_acquired_event *acquired_event, |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 483 | struct event *__event __used, |
| 484 | int cpu __used, |
Hitoshi Mitake | e4cef1f | 2010-04-21 21:23:54 +0900 | [diff] [blame] | 485 | u64 timestamp __used, |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 486 | struct thread *thread __used) |
| 487 | { |
Hitoshi Mitake | e4cef1f | 2010-04-21 21:23:54 +0900 | [diff] [blame] | 488 | struct lock_stat *ls; |
| 489 | struct thread_stat *ts; |
| 490 | struct lock_seq_stat *seq; |
| 491 | u64 contended_term; |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 492 | |
Hitoshi Mitake | e4cef1f | 2010-04-21 21:23:54 +0900 | [diff] [blame] | 493 | ls = lock_stat_findnew(acquired_event->addr, acquired_event->name); |
| 494 | if (ls->discard) |
| 495 | return; |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 496 | |
Hitoshi Mitake | e4cef1f | 2010-04-21 21:23:54 +0900 | [diff] [blame] | 497 | ts = thread_stat_findnew(thread->pid); |
| 498 | seq = get_seq(ts, acquired_event->addr); |
| 499 | |
| 500 | switch (seq->state) { |
| 501 | case SEQ_STATE_UNINITIALIZED: |
| 502 | /* orphan event, do nothing */ |
| 503 | return; |
| 504 | case SEQ_STATE_ACQUIRING: |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 505 | break; |
Hitoshi Mitake | e4cef1f | 2010-04-21 21:23:54 +0900 | [diff] [blame] | 506 | case SEQ_STATE_CONTENDED: |
| 507 | contended_term = timestamp - seq->prev_event_time; |
| 508 | ls->wait_time_total += contended_term; |
Hitoshi Mitake | e4cef1f | 2010-04-21 21:23:54 +0900 | [diff] [blame] | 509 | if (contended_term < ls->wait_time_min) |
| 510 | ls->wait_time_min = contended_term; |
Frederic Weisbecker | 90c0e5f | 2010-05-07 02:33:42 +0200 | [diff] [blame] | 511 | if (ls->wait_time_max < contended_term) |
Hitoshi Mitake | e4cef1f | 2010-04-21 21:23:54 +0900 | [diff] [blame] | 512 | ls->wait_time_max = contended_term; |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 513 | break; |
Hitoshi Mitake | e4cef1f | 2010-04-21 21:23:54 +0900 | [diff] [blame] | 514 | case SEQ_STATE_RELEASED: |
| 515 | case SEQ_STATE_ACQUIRED: |
| 516 | case SEQ_STATE_READ_ACQUIRED: |
| 517 | /* broken lock sequence, discard it */ |
| 518 | ls->discard = 1; |
Frederic Weisbecker | 10350ec | 2010-05-05 23:47:28 +0200 | [diff] [blame] | 519 | bad_hist[BROKEN_ACQUIRED]++; |
Hitoshi Mitake | e4cef1f | 2010-04-21 21:23:54 +0900 | [diff] [blame] | 520 | list_del(&seq->list); |
| 521 | free(seq); |
| 522 | goto end; |
| 523 | break; |
| 524 | |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 525 | default: |
Hitoshi Mitake | e4cef1f | 2010-04-21 21:23:54 +0900 | [diff] [blame] | 526 | BUG_ON("Unknown state of lock sequence found!\n"); |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 527 | break; |
| 528 | } |
| 529 | |
Hitoshi Mitake | e4cef1f | 2010-04-21 21:23:54 +0900 | [diff] [blame] | 530 | seq->state = SEQ_STATE_ACQUIRED; |
| 531 | ls->nr_acquired++; |
| 532 | seq->prev_event_time = timestamp; |
| 533 | end: |
| 534 | return; |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 535 | } |
| 536 | |
Ingo Molnar | 59f411b | 2010-01-31 08:27:58 +0100 | [diff] [blame] | 537 | static void |
| 538 | report_lock_contended_event(struct trace_contended_event *contended_event, |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 539 | struct event *__event __used, |
| 540 | int cpu __used, |
Hitoshi Mitake | e4cef1f | 2010-04-21 21:23:54 +0900 | [diff] [blame] | 541 | u64 timestamp __used, |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 542 | struct thread *thread __used) |
| 543 | { |
Hitoshi Mitake | e4cef1f | 2010-04-21 21:23:54 +0900 | [diff] [blame] | 544 | struct lock_stat *ls; |
| 545 | struct thread_stat *ts; |
| 546 | struct lock_seq_stat *seq; |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 547 | |
Hitoshi Mitake | e4cef1f | 2010-04-21 21:23:54 +0900 | [diff] [blame] | 548 | ls = lock_stat_findnew(contended_event->addr, contended_event->name); |
| 549 | if (ls->discard) |
| 550 | return; |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 551 | |
Hitoshi Mitake | e4cef1f | 2010-04-21 21:23:54 +0900 | [diff] [blame] | 552 | ts = thread_stat_findnew(thread->pid); |
| 553 | seq = get_seq(ts, contended_event->addr); |
| 554 | |
| 555 | switch (seq->state) { |
| 556 | case SEQ_STATE_UNINITIALIZED: |
| 557 | /* orphan event, do nothing */ |
| 558 | return; |
| 559 | case SEQ_STATE_ACQUIRING: |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 560 | break; |
Hitoshi Mitake | e4cef1f | 2010-04-21 21:23:54 +0900 | [diff] [blame] | 561 | case SEQ_STATE_RELEASED: |
| 562 | case SEQ_STATE_ACQUIRED: |
| 563 | case SEQ_STATE_READ_ACQUIRED: |
| 564 | case SEQ_STATE_CONTENDED: |
| 565 | /* broken lock sequence, discard it */ |
| 566 | ls->discard = 1; |
Frederic Weisbecker | 10350ec | 2010-05-05 23:47:28 +0200 | [diff] [blame] | 567 | bad_hist[BROKEN_CONTENDED]++; |
Hitoshi Mitake | e4cef1f | 2010-04-21 21:23:54 +0900 | [diff] [blame] | 568 | list_del(&seq->list); |
| 569 | free(seq); |
| 570 | goto end; |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 571 | break; |
| 572 | default: |
Hitoshi Mitake | e4cef1f | 2010-04-21 21:23:54 +0900 | [diff] [blame] | 573 | BUG_ON("Unknown state of lock sequence found!\n"); |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 574 | break; |
| 575 | } |
| 576 | |
Hitoshi Mitake | e4cef1f | 2010-04-21 21:23:54 +0900 | [diff] [blame] | 577 | seq->state = SEQ_STATE_CONTENDED; |
| 578 | ls->nr_contended++; |
| 579 | seq->prev_event_time = timestamp; |
| 580 | end: |
| 581 | return; |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 582 | } |
| 583 | |
Ingo Molnar | 59f411b | 2010-01-31 08:27:58 +0100 | [diff] [blame] | 584 | static void |
| 585 | report_lock_release_event(struct trace_release_event *release_event, |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 586 | struct event *__event __used, |
| 587 | int cpu __used, |
Hitoshi Mitake | e4cef1f | 2010-04-21 21:23:54 +0900 | [diff] [blame] | 588 | u64 timestamp __used, |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 589 | struct thread *thread __used) |
| 590 | { |
Hitoshi Mitake | e4cef1f | 2010-04-21 21:23:54 +0900 | [diff] [blame] | 591 | struct lock_stat *ls; |
| 592 | struct thread_stat *ts; |
| 593 | struct lock_seq_stat *seq; |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 594 | |
Hitoshi Mitake | e4cef1f | 2010-04-21 21:23:54 +0900 | [diff] [blame] | 595 | ls = lock_stat_findnew(release_event->addr, release_event->name); |
| 596 | if (ls->discard) |
| 597 | return; |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 598 | |
Hitoshi Mitake | e4cef1f | 2010-04-21 21:23:54 +0900 | [diff] [blame] | 599 | ts = thread_stat_findnew(thread->pid); |
| 600 | seq = get_seq(ts, release_event->addr); |
| 601 | |
| 602 | switch (seq->state) { |
| 603 | case SEQ_STATE_UNINITIALIZED: |
| 604 | goto end; |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 605 | break; |
Hitoshi Mitake | e4cef1f | 2010-04-21 21:23:54 +0900 | [diff] [blame] | 606 | case SEQ_STATE_ACQUIRED: |
| 607 | break; |
| 608 | case SEQ_STATE_READ_ACQUIRED: |
| 609 | seq->read_count--; |
| 610 | BUG_ON(seq->read_count < 0); |
| 611 | if (!seq->read_count) { |
| 612 | ls->nr_release++; |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 613 | goto end; |
| 614 | } |
Hitoshi Mitake | e4cef1f | 2010-04-21 21:23:54 +0900 | [diff] [blame] | 615 | break; |
| 616 | case SEQ_STATE_ACQUIRING: |
| 617 | case SEQ_STATE_CONTENDED: |
| 618 | case SEQ_STATE_RELEASED: |
| 619 | /* broken lock sequence, discard it */ |
| 620 | ls->discard = 1; |
Frederic Weisbecker | 10350ec | 2010-05-05 23:47:28 +0200 | [diff] [blame] | 621 | bad_hist[BROKEN_RELEASE]++; |
Hitoshi Mitake | e4cef1f | 2010-04-21 21:23:54 +0900 | [diff] [blame] | 622 | goto free_seq; |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 623 | break; |
| 624 | default: |
Hitoshi Mitake | e4cef1f | 2010-04-21 21:23:54 +0900 | [diff] [blame] | 625 | BUG_ON("Unknown state of lock sequence found!\n"); |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 626 | break; |
| 627 | } |
| 628 | |
Hitoshi Mitake | e4cef1f | 2010-04-21 21:23:54 +0900 | [diff] [blame] | 629 | ls->nr_release++; |
| 630 | free_seq: |
| 631 | list_del(&seq->list); |
| 632 | free(seq); |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 633 | end: |
Hitoshi Mitake | e4cef1f | 2010-04-21 21:23:54 +0900 | [diff] [blame] | 634 | return; |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 635 | } |
| 636 | |
| 637 | /* lock oriented handlers */ |
| 638 | /* TODO: handlers for CPU oriented, thread oriented */ |
Ingo Molnar | 59f411b | 2010-01-31 08:27:58 +0100 | [diff] [blame] | 639 | static struct trace_lock_handler report_lock_ops = { |
| 640 | .acquire_event = report_lock_acquire_event, |
| 641 | .acquired_event = report_lock_acquired_event, |
| 642 | .contended_event = report_lock_contended_event, |
| 643 | .release_event = report_lock_release_event, |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 644 | }; |
| 645 | |
| 646 | static struct trace_lock_handler *trace_handler; |
| 647 | |
| 648 | static void |
| 649 | process_lock_acquire_event(void *data, |
| 650 | struct event *event __used, |
| 651 | int cpu __used, |
| 652 | u64 timestamp __used, |
| 653 | struct thread *thread __used) |
| 654 | { |
| 655 | struct trace_acquire_event acquire_event; |
| 656 | u64 tmp; /* this is required for casting... */ |
| 657 | |
| 658 | tmp = raw_field_value(event, "lockdep_addr", data); |
| 659 | memcpy(&acquire_event.addr, &tmp, sizeof(void *)); |
| 660 | acquire_event.name = (char *)raw_field_ptr(event, "name", data); |
Hitoshi Mitake | e4cef1f | 2010-04-21 21:23:54 +0900 | [diff] [blame] | 661 | acquire_event.flag = (int)raw_field_value(event, "flag", data); |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 662 | |
Ingo Molnar | 59f411b | 2010-01-31 08:27:58 +0100 | [diff] [blame] | 663 | if (trace_handler->acquire_event) |
| 664 | trace_handler->acquire_event(&acquire_event, event, cpu, timestamp, thread); |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 665 | } |
| 666 | |
| 667 | static void |
| 668 | process_lock_acquired_event(void *data, |
| 669 | struct event *event __used, |
| 670 | int cpu __used, |
| 671 | u64 timestamp __used, |
| 672 | struct thread *thread __used) |
| 673 | { |
| 674 | struct trace_acquired_event acquired_event; |
| 675 | u64 tmp; /* this is required for casting... */ |
| 676 | |
| 677 | tmp = raw_field_value(event, "lockdep_addr", data); |
| 678 | memcpy(&acquired_event.addr, &tmp, sizeof(void *)); |
| 679 | acquired_event.name = (char *)raw_field_ptr(event, "name", data); |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 680 | |
Ingo Molnar | 59f411b | 2010-01-31 08:27:58 +0100 | [diff] [blame] | 681 | if (trace_handler->acquire_event) |
| 682 | trace_handler->acquired_event(&acquired_event, event, cpu, timestamp, thread); |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 683 | } |
| 684 | |
| 685 | static void |
| 686 | process_lock_contended_event(void *data, |
| 687 | struct event *event __used, |
| 688 | int cpu __used, |
| 689 | u64 timestamp __used, |
| 690 | struct thread *thread __used) |
| 691 | { |
| 692 | struct trace_contended_event contended_event; |
| 693 | u64 tmp; /* this is required for casting... */ |
| 694 | |
| 695 | tmp = raw_field_value(event, "lockdep_addr", data); |
| 696 | memcpy(&contended_event.addr, &tmp, sizeof(void *)); |
| 697 | contended_event.name = (char *)raw_field_ptr(event, "name", data); |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 698 | |
Ingo Molnar | 59f411b | 2010-01-31 08:27:58 +0100 | [diff] [blame] | 699 | if (trace_handler->acquire_event) |
| 700 | trace_handler->contended_event(&contended_event, event, cpu, timestamp, thread); |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 701 | } |
| 702 | |
| 703 | static void |
| 704 | process_lock_release_event(void *data, |
| 705 | struct event *event __used, |
| 706 | int cpu __used, |
| 707 | u64 timestamp __used, |
| 708 | struct thread *thread __used) |
| 709 | { |
| 710 | struct trace_release_event release_event; |
| 711 | u64 tmp; /* this is required for casting... */ |
| 712 | |
| 713 | tmp = raw_field_value(event, "lockdep_addr", data); |
| 714 | memcpy(&release_event.addr, &tmp, sizeof(void *)); |
| 715 | release_event.name = (char *)raw_field_ptr(event, "name", data); |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 716 | |
Ingo Molnar | 59f411b | 2010-01-31 08:27:58 +0100 | [diff] [blame] | 717 | if (trace_handler->acquire_event) |
| 718 | trace_handler->release_event(&release_event, event, cpu, timestamp, thread); |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 719 | } |
| 720 | |
| 721 | static void |
Frederic Weisbecker | c61e52e | 2010-04-24 00:04:12 +0200 | [diff] [blame] | 722 | process_raw_event(void *data, int cpu, u64 timestamp, struct thread *thread) |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 723 | { |
| 724 | struct event *event; |
| 725 | int type; |
| 726 | |
| 727 | type = trace_parse_common_type(data); |
| 728 | event = trace_find_event(type); |
| 729 | |
| 730 | if (!strcmp(event->name, "lock_acquire")) |
| 731 | process_lock_acquire_event(data, event, cpu, timestamp, thread); |
| 732 | if (!strcmp(event->name, "lock_acquired")) |
| 733 | process_lock_acquired_event(data, event, cpu, timestamp, thread); |
| 734 | if (!strcmp(event->name, "lock_contended")) |
| 735 | process_lock_contended_event(data, event, cpu, timestamp, thread); |
| 736 | if (!strcmp(event->name, "lock_release")) |
| 737 | process_lock_release_event(data, event, cpu, timestamp, thread); |
| 738 | } |
| 739 | |
Frederic Weisbecker | 10350ec | 2010-05-05 23:47:28 +0200 | [diff] [blame] | 740 | static void print_bad_events(int bad, int total) |
| 741 | { |
| 742 | /* Output for debug, this have to be removed */ |
| 743 | int i; |
| 744 | const char *name[4] = |
| 745 | { "acquire", "acquired", "contended", "release" }; |
| 746 | |
| 747 | pr_info("\n=== output for debug===\n\n"); |
Frederic Weisbecker | 5efe08c | 2010-05-06 04:55:22 +0200 | [diff] [blame] | 748 | pr_info("bad: %d, total: %d\n", bad, total); |
| 749 | pr_info("bad rate: %f %%\n", (double)bad / (double)total * 100); |
Frederic Weisbecker | 10350ec | 2010-05-05 23:47:28 +0200 | [diff] [blame] | 750 | pr_info("histogram of events caused bad sequence\n"); |
| 751 | for (i = 0; i < BROKEN_MAX; i++) |
| 752 | pr_info(" %10s: %d\n", name[i], bad_hist[i]); |
| 753 | } |
| 754 | |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 755 | /* TODO: various way to print, coloring, nano or milli sec */ |
| 756 | static void print_result(void) |
| 757 | { |
| 758 | struct lock_stat *st; |
| 759 | char cut_name[20]; |
Hitoshi Mitake | e4cef1f | 2010-04-21 21:23:54 +0900 | [diff] [blame] | 760 | int bad, total; |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 761 | |
Hitoshi Mitake | 26242d8 | 2010-05-03 14:12:00 +0900 | [diff] [blame] | 762 | pr_info("%20s ", "Name"); |
| 763 | pr_info("%10s ", "acquired"); |
| 764 | pr_info("%10s ", "contended"); |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 765 | |
Hitoshi Mitake | 26242d8 | 2010-05-03 14:12:00 +0900 | [diff] [blame] | 766 | pr_info("%15s ", "total wait (ns)"); |
| 767 | pr_info("%15s ", "max wait (ns)"); |
| 768 | pr_info("%15s ", "min wait (ns)"); |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 769 | |
Hitoshi Mitake | 26242d8 | 2010-05-03 14:12:00 +0900 | [diff] [blame] | 770 | pr_info("\n\n"); |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 771 | |
Hitoshi Mitake | e4cef1f | 2010-04-21 21:23:54 +0900 | [diff] [blame] | 772 | bad = total = 0; |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 773 | while ((st = pop_from_result())) { |
Hitoshi Mitake | e4cef1f | 2010-04-21 21:23:54 +0900 | [diff] [blame] | 774 | total++; |
| 775 | if (st->discard) { |
| 776 | bad++; |
| 777 | continue; |
| 778 | } |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 779 | bzero(cut_name, 20); |
| 780 | |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 781 | if (strlen(st->name) < 16) { |
| 782 | /* output raw name */ |
Hitoshi Mitake | 26242d8 | 2010-05-03 14:12:00 +0900 | [diff] [blame] | 783 | pr_info("%20s ", st->name); |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 784 | } else { |
| 785 | strncpy(cut_name, st->name, 16); |
| 786 | cut_name[16] = '.'; |
| 787 | cut_name[17] = '.'; |
| 788 | cut_name[18] = '.'; |
| 789 | cut_name[19] = '\0'; |
| 790 | /* cut off name for saving output style */ |
Hitoshi Mitake | 26242d8 | 2010-05-03 14:12:00 +0900 | [diff] [blame] | 791 | pr_info("%20s ", cut_name); |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 792 | } |
| 793 | |
Hitoshi Mitake | 26242d8 | 2010-05-03 14:12:00 +0900 | [diff] [blame] | 794 | pr_info("%10u ", st->nr_acquired); |
| 795 | pr_info("%10u ", st->nr_contended); |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 796 | |
Arnaldo Carvalho de Melo | 9486aa3 | 2011-01-22 20:37:02 -0200 | [diff] [blame] | 797 | pr_info("%15" PRIu64 " ", st->wait_time_total); |
| 798 | pr_info("%15" PRIu64 " ", st->wait_time_max); |
| 799 | pr_info("%15" PRIu64 " ", st->wait_time_min == ULLONG_MAX ? |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 800 | 0 : st->wait_time_min); |
Hitoshi Mitake | 26242d8 | 2010-05-03 14:12:00 +0900 | [diff] [blame] | 801 | pr_info("\n"); |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 802 | } |
Hitoshi Mitake | e4cef1f | 2010-04-21 21:23:54 +0900 | [diff] [blame] | 803 | |
Frederic Weisbecker | 10350ec | 2010-05-05 23:47:28 +0200 | [diff] [blame] | 804 | print_bad_events(bad, total); |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 805 | } |
| 806 | |
Arnaldo Carvalho de Melo | 8035458 | 2010-05-17 15:51:10 -0300 | [diff] [blame] | 807 | static bool info_threads, info_map; |
Hitoshi Mitake | 26242d8 | 2010-05-03 14:12:00 +0900 | [diff] [blame] | 808 | |
| 809 | static void dump_threads(void) |
| 810 | { |
| 811 | struct thread_stat *st; |
| 812 | struct rb_node *node; |
| 813 | struct thread *t; |
| 814 | |
| 815 | pr_info("%10s: comm\n", "Thread ID"); |
| 816 | |
| 817 | node = rb_first(&thread_stats); |
| 818 | while (node) { |
| 819 | st = container_of(node, struct thread_stat, rb); |
| 820 | t = perf_session__findnew(session, st->tid); |
| 821 | pr_info("%10d: %s\n", st->tid, t->comm); |
| 822 | node = rb_next(node); |
| 823 | }; |
| 824 | } |
| 825 | |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 826 | static void dump_map(void) |
| 827 | { |
| 828 | unsigned int i; |
| 829 | struct lock_stat *st; |
| 830 | |
Hitoshi Mitake | 26242d8 | 2010-05-03 14:12:00 +0900 | [diff] [blame] | 831 | pr_info("Address of instance: name of class\n"); |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 832 | for (i = 0; i < LOCKHASH_SIZE; i++) { |
| 833 | list_for_each_entry(st, &lockhash_table[i], hash_entry) { |
Hitoshi Mitake | 26242d8 | 2010-05-03 14:12:00 +0900 | [diff] [blame] | 834 | pr_info(" %p: %s\n", st->addr, st->name); |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 835 | } |
| 836 | } |
| 837 | } |
| 838 | |
Hitoshi Mitake | 26242d8 | 2010-05-03 14:12:00 +0900 | [diff] [blame] | 839 | static void dump_info(void) |
| 840 | { |
| 841 | if (info_threads) |
| 842 | dump_threads(); |
| 843 | else if (info_map) |
| 844 | dump_map(); |
| 845 | else |
| 846 | die("Unknown type of information\n"); |
| 847 | } |
| 848 | |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 849 | static int process_sample_event(struct perf_tool *tool __used, |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 850 | union perf_event *event, |
Arnaldo Carvalho de Melo | 9e69c21 | 2011-03-15 15:44:01 -0300 | [diff] [blame] | 851 | struct perf_sample *sample, |
| 852 | struct perf_evsel *evsel __used, |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 853 | struct machine *machine) |
Frederic Weisbecker | c61e52e | 2010-04-24 00:04:12 +0200 | [diff] [blame] | 854 | { |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 855 | struct thread *thread = machine__findnew_thread(machine, sample->tid); |
Frederic Weisbecker | c61e52e | 2010-04-24 00:04:12 +0200 | [diff] [blame] | 856 | |
Frederic Weisbecker | c61e52e | 2010-04-24 00:04:12 +0200 | [diff] [blame] | 857 | if (thread == NULL) { |
| 858 | pr_debug("problem processing %d event, skipping it.\n", |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 859 | event->header.type); |
Frederic Weisbecker | c61e52e | 2010-04-24 00:04:12 +0200 | [diff] [blame] | 860 | return -1; |
| 861 | } |
| 862 | |
Arnaldo Carvalho de Melo | 640c03c | 2010-12-02 14:10:21 -0200 | [diff] [blame] | 863 | process_raw_event(sample->raw_data, sample->cpu, sample->time, thread); |
Frederic Weisbecker | c61e52e | 2010-04-24 00:04:12 +0200 | [diff] [blame] | 864 | |
| 865 | return 0; |
| 866 | } |
| 867 | |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 868 | static struct perf_tool eops = { |
Ingo Molnar | 59f411b | 2010-01-31 08:27:58 +0100 | [diff] [blame] | 869 | .sample = process_sample_event, |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 870 | .comm = perf_event__process_comm, |
Frederic Weisbecker | c61e52e | 2010-04-24 00:04:12 +0200 | [diff] [blame] | 871 | .ordered_samples = true, |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 872 | }; |
| 873 | |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 874 | static int read_events(void) |
| 875 | { |
Ian Munsie | 21ef97f | 2010-12-10 14:09:16 +1100 | [diff] [blame] | 876 | session = perf_session__new(input_name, O_RDONLY, 0, false, &eops); |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 877 | if (!session) |
| 878 | die("Initializing perf session failed\n"); |
| 879 | |
| 880 | return perf_session__process_events(session, &eops); |
| 881 | } |
| 882 | |
| 883 | static void sort_result(void) |
| 884 | { |
| 885 | unsigned int i; |
| 886 | struct lock_stat *st; |
| 887 | |
| 888 | for (i = 0; i < LOCKHASH_SIZE; i++) { |
| 889 | list_for_each_entry(st, &lockhash_table[i], hash_entry) { |
| 890 | insert_to_result(st, compare); |
| 891 | } |
| 892 | } |
| 893 | } |
| 894 | |
Ingo Molnar | 59f411b | 2010-01-31 08:27:58 +0100 | [diff] [blame] | 895 | static void __cmd_report(void) |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 896 | { |
| 897 | setup_pager(); |
| 898 | select_key(); |
| 899 | read_events(); |
| 900 | sort_result(); |
| 901 | print_result(); |
| 902 | } |
| 903 | |
Ingo Molnar | 59f411b | 2010-01-31 08:27:58 +0100 | [diff] [blame] | 904 | static const char * const report_usage[] = { |
| 905 | "perf lock report [<options>]", |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 906 | NULL |
| 907 | }; |
| 908 | |
Ingo Molnar | 59f411b | 2010-01-31 08:27:58 +0100 | [diff] [blame] | 909 | static const struct option report_options[] = { |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 910 | OPT_STRING('k', "key", &sort_key, "acquired", |
Marcin Slusarz | 9826e83 | 2011-02-22 21:53:12 +0100 | [diff] [blame] | 911 | "key for sorting (acquired / contended / wait_total / wait_max / wait_min)"), |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 912 | /* TODO: type */ |
| 913 | OPT_END() |
| 914 | }; |
| 915 | |
Hitoshi Mitake | 26242d8 | 2010-05-03 14:12:00 +0900 | [diff] [blame] | 916 | static const char * const info_usage[] = { |
| 917 | "perf lock info [<options>]", |
| 918 | NULL |
| 919 | }; |
| 920 | |
| 921 | static const struct option info_options[] = { |
| 922 | OPT_BOOLEAN('t', "threads", &info_threads, |
| 923 | "dump thread list in perf.data"), |
| 924 | OPT_BOOLEAN('m', "map", &info_map, |
Namhyung Kim | d1eec3e | 2012-01-29 17:55:56 +0900 | [diff] [blame^] | 925 | "map of lock instances (address:name table)"), |
Hitoshi Mitake | 26242d8 | 2010-05-03 14:12:00 +0900 | [diff] [blame] | 926 | OPT_END() |
| 927 | }; |
| 928 | |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 929 | static const char * const lock_usage[] = { |
Namhyung Kim | d1eec3e | 2012-01-29 17:55:56 +0900 | [diff] [blame^] | 930 | "perf lock [<options>] {record|report|script|info}", |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 931 | NULL |
| 932 | }; |
| 933 | |
| 934 | static const struct option lock_options[] = { |
Ingo Molnar | 59f411b | 2010-01-31 08:27:58 +0100 | [diff] [blame] | 935 | OPT_STRING('i', "input", &input_name, "file", "input file name"), |
Ian Munsie | c055564 | 2010-04-13 18:37:33 +1000 | [diff] [blame] | 936 | OPT_INCR('v', "verbose", &verbose, "be more verbose (show symbol address, etc)"), |
Ingo Molnar | 59f411b | 2010-01-31 08:27:58 +0100 | [diff] [blame] | 937 | OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, "dump raw trace in ASCII"), |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 938 | OPT_END() |
| 939 | }; |
| 940 | |
| 941 | static const char *record_args[] = { |
| 942 | "record", |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 943 | "-R", |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 944 | "-f", |
| 945 | "-m", "1024", |
| 946 | "-c", "1", |
Zhu Yanhai | cf8dc9f | 2011-07-30 22:13:52 +0800 | [diff] [blame] | 947 | "-e", "lock:lock_acquire", |
| 948 | "-e", "lock:lock_acquired", |
| 949 | "-e", "lock:lock_contended", |
| 950 | "-e", "lock:lock_release", |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 951 | }; |
| 952 | |
| 953 | static int __cmd_record(int argc, const char **argv) |
| 954 | { |
| 955 | unsigned int rec_argc, i, j; |
| 956 | const char **rec_argv; |
| 957 | |
| 958 | rec_argc = ARRAY_SIZE(record_args) + argc - 1; |
| 959 | rec_argv = calloc(rec_argc + 1, sizeof(char *)); |
| 960 | |
Chris Samuel | ce47dc5 | 2010-11-13 13:35:06 +1100 | [diff] [blame] | 961 | if (rec_argv == NULL) |
| 962 | return -ENOMEM; |
| 963 | |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 964 | for (i = 0; i < ARRAY_SIZE(record_args); i++) |
| 965 | rec_argv[i] = strdup(record_args[i]); |
| 966 | |
| 967 | for (j = 1; j < (unsigned int)argc; j++, i++) |
| 968 | rec_argv[i] = argv[j]; |
| 969 | |
| 970 | BUG_ON(i != rec_argc); |
| 971 | |
| 972 | return cmd_record(i, rec_argv, NULL); |
| 973 | } |
| 974 | |
| 975 | int cmd_lock(int argc, const char **argv, const char *prefix __used) |
| 976 | { |
| 977 | unsigned int i; |
| 978 | |
| 979 | symbol__init(); |
| 980 | for (i = 0; i < LOCKHASH_SIZE; i++) |
| 981 | INIT_LIST_HEAD(lockhash_table + i); |
| 982 | |
| 983 | argc = parse_options(argc, argv, lock_options, lock_usage, |
| 984 | PARSE_OPT_STOP_AT_NON_OPTION); |
| 985 | if (!argc) |
| 986 | usage_with_options(lock_usage, lock_options); |
| 987 | |
| 988 | if (!strncmp(argv[0], "rec", 3)) { |
| 989 | return __cmd_record(argc, argv); |
Ingo Molnar | 59f411b | 2010-01-31 08:27:58 +0100 | [diff] [blame] | 990 | } else if (!strncmp(argv[0], "report", 6)) { |
| 991 | trace_handler = &report_lock_ops; |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 992 | if (argc) { |
| 993 | argc = parse_options(argc, argv, |
Ingo Molnar | 59f411b | 2010-01-31 08:27:58 +0100 | [diff] [blame] | 994 | report_options, report_usage, 0); |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 995 | if (argc) |
Ingo Molnar | 59f411b | 2010-01-31 08:27:58 +0100 | [diff] [blame] | 996 | usage_with_options(report_usage, report_options); |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 997 | } |
Ingo Molnar | 59f411b | 2010-01-31 08:27:58 +0100 | [diff] [blame] | 998 | __cmd_report(); |
Ingo Molnar | 133dc4c | 2010-11-16 18:45:39 +0100 | [diff] [blame] | 999 | } else if (!strcmp(argv[0], "script")) { |
| 1000 | /* Aliased to 'perf script' */ |
| 1001 | return cmd_script(argc, argv, prefix); |
Hitoshi Mitake | 26242d8 | 2010-05-03 14:12:00 +0900 | [diff] [blame] | 1002 | } else if (!strcmp(argv[0], "info")) { |
| 1003 | if (argc) { |
| 1004 | argc = parse_options(argc, argv, |
| 1005 | info_options, info_usage, 0); |
| 1006 | if (argc) |
| 1007 | usage_with_options(info_usage, info_options); |
| 1008 | } |
Ingo Molnar | 59f411b | 2010-01-31 08:27:58 +0100 | [diff] [blame] | 1009 | /* recycling report_lock_ops */ |
| 1010 | trace_handler = &report_lock_ops; |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 1011 | setup_pager(); |
| 1012 | read_events(); |
Hitoshi Mitake | 26242d8 | 2010-05-03 14:12:00 +0900 | [diff] [blame] | 1013 | dump_info(); |
Hitoshi Mitake | 9b5e350 | 2010-01-30 20:43:33 +0900 | [diff] [blame] | 1014 | } else { |
| 1015 | usage_with_options(lock_usage, lock_options); |
| 1016 | } |
| 1017 | |
| 1018 | return 0; |
| 1019 | } |