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" |
| 15 | |
| 16 | #include <sys/types.h> |
| 17 | #include <sys/prctl.h> |
| 18 | #include <semaphore.h> |
| 19 | #include <pthread.h> |
| 20 | #include <math.h> |
| 21 | #include <limits.h> |
| 22 | |
| 23 | #include <linux/list.h> |
| 24 | #include <linux/hash.h> |
| 25 | |
| 26 | /* based on kernel/lockdep.c */ |
| 27 | #define LOCKHASH_BITS 12 |
| 28 | #define LOCKHASH_SIZE (1UL << LOCKHASH_BITS) |
| 29 | |
| 30 | static struct list_head lockhash_table[LOCKHASH_SIZE]; |
| 31 | |
| 32 | #define __lockhashfn(key) hash_long((unsigned long)key, LOCKHASH_BITS) |
| 33 | #define lockhashentry(key) (lockhash_table + __lockhashfn((key))) |
| 34 | |
| 35 | #define LOCK_STATE_UNLOCKED 0 /* initial state */ |
| 36 | #define LOCK_STATE_LOCKED 1 |
| 37 | |
| 38 | struct lock_stat { |
| 39 | struct list_head hash_entry; |
| 40 | struct rb_node rb; /* used for sorting */ |
| 41 | |
| 42 | /* FIXME: raw_field_value() returns unsigned long long, |
| 43 | * so address of lockdep_map should be dealed as 64bit. |
| 44 | * Is there more better solution? */ |
| 45 | void *addr; /* address of lockdep_map, used as ID */ |
| 46 | char *name; /* for strcpy(), we cannot use const */ |
| 47 | char *file; |
| 48 | unsigned int line; |
| 49 | |
| 50 | int state; |
| 51 | u64 prev_event_time; /* timestamp of previous event */ |
| 52 | |
| 53 | unsigned int nr_acquired; |
| 54 | unsigned int nr_acquire; |
| 55 | unsigned int nr_contended; |
| 56 | unsigned int nr_release; |
| 57 | |
| 58 | /* these times are in nano sec. */ |
| 59 | u64 wait_time_total; |
| 60 | u64 wait_time_min; |
| 61 | u64 wait_time_max; |
| 62 | }; |
| 63 | |
| 64 | /* build simple key function one is bigger than two */ |
| 65 | #define SINGLE_KEY(member) \ |
| 66 | static int lock_stat_key_ ## member(struct lock_stat *one, \ |
| 67 | struct lock_stat *two) \ |
| 68 | { \ |
| 69 | return one->member > two->member; \ |
| 70 | } |
| 71 | |
| 72 | SINGLE_KEY(nr_acquired) |
| 73 | SINGLE_KEY(nr_contended) |
| 74 | SINGLE_KEY(wait_time_total) |
| 75 | SINGLE_KEY(wait_time_min) |
| 76 | SINGLE_KEY(wait_time_max) |
| 77 | |
| 78 | struct lock_key { |
| 79 | /* |
| 80 | * name: the value for specify by user |
| 81 | * this should be simpler than raw name of member |
| 82 | * e.g. nr_acquired -> acquired, wait_time_total -> wait_total |
| 83 | */ |
| 84 | const char *name; |
| 85 | int (*key)(struct lock_stat*, struct lock_stat*); |
| 86 | }; |
| 87 | |
| 88 | static const char *sort_key = "acquired"; |
| 89 | static int (*compare)(struct lock_stat *, struct lock_stat *); |
| 90 | |
| 91 | #define DEF_KEY_LOCK(name, fn_suffix) \ |
| 92 | { #name, lock_stat_key_ ## fn_suffix } |
| 93 | struct lock_key keys[] = { |
| 94 | DEF_KEY_LOCK(acquired, nr_acquired), |
| 95 | DEF_KEY_LOCK(contended, nr_contended), |
| 96 | DEF_KEY_LOCK(wait_total, wait_time_total), |
| 97 | DEF_KEY_LOCK(wait_min, wait_time_min), |
| 98 | DEF_KEY_LOCK(wait_max, wait_time_max), |
| 99 | |
| 100 | /* extra comparisons much complicated should be here */ |
| 101 | |
| 102 | { NULL, NULL } |
| 103 | }; |
| 104 | |
| 105 | static void select_key(void) |
| 106 | { |
| 107 | int i; |
| 108 | |
| 109 | for (i = 0; keys[i].name; i++) { |
| 110 | if (!strcmp(keys[i].name, sort_key)) { |
| 111 | compare = keys[i].key; |
| 112 | return; |
| 113 | } |
| 114 | } |
| 115 | |
| 116 | die("Unknown compare key:%s\n", sort_key); |
| 117 | } |
| 118 | |
| 119 | static struct rb_root result; /* place to store sorted data */ |
| 120 | |
| 121 | static void insert_to_result(struct lock_stat *st, |
| 122 | int (*bigger)(struct lock_stat *, |
| 123 | struct lock_stat *)) |
| 124 | { |
| 125 | struct rb_node **rb = &result.rb_node; |
| 126 | struct rb_node *parent = NULL; |
| 127 | struct lock_stat *p; |
| 128 | |
| 129 | while (*rb) { |
| 130 | p = container_of(*rb, struct lock_stat, rb); |
| 131 | parent = *rb; |
| 132 | |
| 133 | if (bigger(st, p)) |
| 134 | rb = &(*rb)->rb_left; |
| 135 | else |
| 136 | rb = &(*rb)->rb_right; |
| 137 | } |
| 138 | |
| 139 | rb_link_node(&st->rb, parent, rb); |
| 140 | rb_insert_color(&st->rb, &result); |
| 141 | } |
| 142 | |
| 143 | /* returns left most element of result, and erase it */ |
| 144 | static struct lock_stat *pop_from_result(void) |
| 145 | { |
| 146 | struct rb_node *node = result.rb_node; |
| 147 | |
| 148 | if (!node) |
| 149 | return NULL; |
| 150 | |
| 151 | while (node->rb_left) |
| 152 | node = node->rb_left; |
| 153 | |
| 154 | rb_erase(node, &result); |
| 155 | return container_of(node, struct lock_stat, rb); |
| 156 | } |
| 157 | |
| 158 | static struct lock_stat *lock_stat_findnew(void *addr, const char *name, |
| 159 | const char *file, unsigned int line) |
| 160 | { |
| 161 | struct list_head *entry = lockhashentry(addr); |
| 162 | struct lock_stat *ret, *new; |
| 163 | |
| 164 | list_for_each_entry(ret, entry, hash_entry) { |
| 165 | if (ret->addr == addr) |
| 166 | return ret; |
| 167 | } |
| 168 | |
| 169 | new = zalloc(sizeof(struct lock_stat)); |
| 170 | if (!new) |
| 171 | goto alloc_failed; |
| 172 | |
| 173 | new->addr = addr; |
| 174 | new->name = zalloc(sizeof(char) * strlen(name) + 1); |
| 175 | if (!new->name) |
| 176 | goto alloc_failed; |
| 177 | strcpy(new->name, name); |
| 178 | new->file = zalloc(sizeof(char) * strlen(file) + 1); |
| 179 | if (!new->file) |
| 180 | goto alloc_failed; |
| 181 | strcpy(new->file, file); |
| 182 | new->line = line; |
| 183 | |
| 184 | /* LOCK_STATE_UNLOCKED == 0 isn't guaranteed forever */ |
| 185 | new->state = LOCK_STATE_UNLOCKED; |
| 186 | new->wait_time_min = ULLONG_MAX; |
| 187 | |
| 188 | list_add(&new->hash_entry, entry); |
| 189 | return new; |
| 190 | |
| 191 | alloc_failed: |
| 192 | die("memory allocation failed\n"); |
| 193 | } |
| 194 | |
| 195 | static char const *input_name = "perf.data"; |
| 196 | |
| 197 | static int profile_cpu = -1; |
| 198 | |
| 199 | struct raw_event_sample { |
| 200 | u32 size; |
| 201 | char data[0]; |
| 202 | }; |
| 203 | |
| 204 | struct trace_acquire_event { |
| 205 | void *addr; |
| 206 | const char *name; |
| 207 | const char *file; |
| 208 | unsigned int line; |
| 209 | }; |
| 210 | |
| 211 | struct trace_acquired_event { |
| 212 | void *addr; |
| 213 | const char *name; |
| 214 | const char *file; |
| 215 | unsigned int line; |
| 216 | }; |
| 217 | |
| 218 | struct trace_contended_event { |
| 219 | void *addr; |
| 220 | const char *name; |
| 221 | const char *file; |
| 222 | unsigned int line; |
| 223 | }; |
| 224 | |
| 225 | struct trace_release_event { |
| 226 | void *addr; |
| 227 | const char *name; |
| 228 | const char *file; |
| 229 | unsigned int line; |
| 230 | }; |
| 231 | |
| 232 | struct trace_lock_handler { |
| 233 | void (*acquire_event)(struct trace_acquire_event *, |
| 234 | struct event *, |
| 235 | int cpu, |
| 236 | u64 timestamp, |
| 237 | struct thread *thread); |
| 238 | |
| 239 | void (*acquired_event)(struct trace_acquired_event *, |
| 240 | struct event *, |
| 241 | int cpu, |
| 242 | u64 timestamp, |
| 243 | struct thread *thread); |
| 244 | |
| 245 | void (*contended_event)(struct trace_contended_event *, |
| 246 | struct event *, |
| 247 | int cpu, |
| 248 | u64 timestamp, |
| 249 | struct thread *thread); |
| 250 | |
| 251 | void (*release_event)(struct trace_release_event *, |
| 252 | struct event *, |
| 253 | int cpu, |
| 254 | u64 timestamp, |
| 255 | struct thread *thread); |
| 256 | }; |
| 257 | |
| 258 | static void prof_lock_acquire_event(struct trace_acquire_event *acquire_event, |
| 259 | struct event *__event __used, |
| 260 | int cpu __used, |
| 261 | u64 timestamp, |
| 262 | struct thread *thread __used) |
| 263 | { |
| 264 | struct lock_stat *st; |
| 265 | |
| 266 | st = lock_stat_findnew(acquire_event->addr, acquire_event->name, |
| 267 | acquire_event->file, acquire_event->line); |
| 268 | |
| 269 | switch (st->state) { |
| 270 | case LOCK_STATE_UNLOCKED: |
| 271 | break; |
| 272 | case LOCK_STATE_LOCKED: |
| 273 | break; |
| 274 | default: |
| 275 | BUG_ON(1); |
| 276 | break; |
| 277 | } |
| 278 | |
| 279 | st->prev_event_time = timestamp; |
| 280 | } |
| 281 | |
| 282 | static void prof_lock_acquired_event(struct trace_acquired_event *acquired_event, |
| 283 | struct event *__event __used, |
| 284 | int cpu __used, |
| 285 | u64 timestamp, |
| 286 | struct thread *thread __used) |
| 287 | { |
| 288 | struct lock_stat *st; |
| 289 | |
| 290 | st = lock_stat_findnew(acquired_event->addr, acquired_event->name, |
| 291 | acquired_event->file, acquired_event->line); |
| 292 | |
| 293 | switch (st->state) { |
| 294 | case LOCK_STATE_UNLOCKED: |
| 295 | st->state = LOCK_STATE_LOCKED; |
| 296 | st->nr_acquired++; |
| 297 | break; |
| 298 | case LOCK_STATE_LOCKED: |
| 299 | break; |
| 300 | default: |
| 301 | BUG_ON(1); |
| 302 | break; |
| 303 | } |
| 304 | |
| 305 | st->prev_event_time = timestamp; |
| 306 | } |
| 307 | |
| 308 | static void prof_lock_contended_event(struct trace_contended_event *contended_event, |
| 309 | struct event *__event __used, |
| 310 | int cpu __used, |
| 311 | u64 timestamp, |
| 312 | struct thread *thread __used) |
| 313 | { |
| 314 | struct lock_stat *st; |
| 315 | |
| 316 | st = lock_stat_findnew(contended_event->addr, contended_event->name, |
| 317 | contended_event->file, contended_event->line); |
| 318 | |
| 319 | switch (st->state) { |
| 320 | case LOCK_STATE_UNLOCKED: |
| 321 | break; |
| 322 | case LOCK_STATE_LOCKED: |
| 323 | st->nr_contended++; |
| 324 | break; |
| 325 | default: |
| 326 | BUG_ON(1); |
| 327 | break; |
| 328 | } |
| 329 | |
| 330 | st->prev_event_time = timestamp; |
| 331 | } |
| 332 | |
| 333 | static void prof_lock_release_event(struct trace_release_event *release_event, |
| 334 | struct event *__event __used, |
| 335 | int cpu __used, |
| 336 | u64 timestamp, |
| 337 | struct thread *thread __used) |
| 338 | { |
| 339 | struct lock_stat *st; |
| 340 | u64 hold_time; |
| 341 | |
| 342 | st = lock_stat_findnew(release_event->addr, release_event->name, |
| 343 | release_event->file, release_event->line); |
| 344 | |
| 345 | switch (st->state) { |
| 346 | case LOCK_STATE_UNLOCKED: |
| 347 | break; |
| 348 | case LOCK_STATE_LOCKED: |
| 349 | st->state = LOCK_STATE_UNLOCKED; |
| 350 | hold_time = timestamp - st->prev_event_time; |
| 351 | |
| 352 | if (timestamp < st->prev_event_time) { |
| 353 | /* terribly, this can happen... */ |
| 354 | goto end; |
| 355 | } |
| 356 | |
| 357 | if (st->wait_time_min > hold_time) |
| 358 | st->wait_time_min = hold_time; |
| 359 | if (st->wait_time_max < hold_time) |
| 360 | st->wait_time_max = hold_time; |
| 361 | st->wait_time_total += hold_time; |
| 362 | |
| 363 | st->nr_release++; |
| 364 | break; |
| 365 | default: |
| 366 | BUG_ON(1); |
| 367 | break; |
| 368 | } |
| 369 | |
| 370 | end: |
| 371 | st->prev_event_time = timestamp; |
| 372 | } |
| 373 | |
| 374 | /* lock oriented handlers */ |
| 375 | /* TODO: handlers for CPU oriented, thread oriented */ |
| 376 | static struct trace_lock_handler prof_lock_ops = { |
| 377 | .acquire_event = prof_lock_acquire_event, |
| 378 | .acquired_event = prof_lock_acquired_event, |
| 379 | .contended_event = prof_lock_contended_event, |
| 380 | .release_event = prof_lock_release_event, |
| 381 | }; |
| 382 | |
| 383 | static struct trace_lock_handler *trace_handler; |
| 384 | |
| 385 | static void |
| 386 | process_lock_acquire_event(void *data, |
| 387 | struct event *event __used, |
| 388 | int cpu __used, |
| 389 | u64 timestamp __used, |
| 390 | struct thread *thread __used) |
| 391 | { |
| 392 | struct trace_acquire_event acquire_event; |
| 393 | u64 tmp; /* this is required for casting... */ |
| 394 | |
| 395 | tmp = raw_field_value(event, "lockdep_addr", data); |
| 396 | memcpy(&acquire_event.addr, &tmp, sizeof(void *)); |
| 397 | acquire_event.name = (char *)raw_field_ptr(event, "name", data); |
| 398 | acquire_event.file = (char *)raw_field_ptr(event, "file", data); |
| 399 | acquire_event.line = |
| 400 | (unsigned int)raw_field_value(event, "line", data); |
| 401 | |
| 402 | if (trace_handler->acquire_event) { |
| 403 | trace_handler->acquire_event(&acquire_event, |
| 404 | event, cpu, timestamp, thread); |
| 405 | } |
| 406 | } |
| 407 | |
| 408 | static void |
| 409 | process_lock_acquired_event(void *data, |
| 410 | struct event *event __used, |
| 411 | int cpu __used, |
| 412 | u64 timestamp __used, |
| 413 | struct thread *thread __used) |
| 414 | { |
| 415 | struct trace_acquired_event acquired_event; |
| 416 | u64 tmp; /* this is required for casting... */ |
| 417 | |
| 418 | tmp = raw_field_value(event, "lockdep_addr", data); |
| 419 | memcpy(&acquired_event.addr, &tmp, sizeof(void *)); |
| 420 | acquired_event.name = (char *)raw_field_ptr(event, "name", data); |
| 421 | acquired_event.file = (char *)raw_field_ptr(event, "file", data); |
| 422 | acquired_event.line = |
| 423 | (unsigned int)raw_field_value(event, "line", data); |
| 424 | |
| 425 | if (trace_handler->acquire_event) { |
| 426 | trace_handler->acquired_event(&acquired_event, |
| 427 | event, cpu, timestamp, thread); |
| 428 | } |
| 429 | } |
| 430 | |
| 431 | static void |
| 432 | process_lock_contended_event(void *data, |
| 433 | struct event *event __used, |
| 434 | int cpu __used, |
| 435 | u64 timestamp __used, |
| 436 | struct thread *thread __used) |
| 437 | { |
| 438 | struct trace_contended_event contended_event; |
| 439 | u64 tmp; /* this is required for casting... */ |
| 440 | |
| 441 | tmp = raw_field_value(event, "lockdep_addr", data); |
| 442 | memcpy(&contended_event.addr, &tmp, sizeof(void *)); |
| 443 | contended_event.name = (char *)raw_field_ptr(event, "name", data); |
| 444 | contended_event.file = (char *)raw_field_ptr(event, "file", data); |
| 445 | contended_event.line = |
| 446 | (unsigned int)raw_field_value(event, "line", data); |
| 447 | |
| 448 | if (trace_handler->acquire_event) { |
| 449 | trace_handler->contended_event(&contended_event, |
| 450 | event, cpu, timestamp, thread); |
| 451 | } |
| 452 | } |
| 453 | |
| 454 | static void |
| 455 | process_lock_release_event(void *data, |
| 456 | struct event *event __used, |
| 457 | int cpu __used, |
| 458 | u64 timestamp __used, |
| 459 | struct thread *thread __used) |
| 460 | { |
| 461 | struct trace_release_event release_event; |
| 462 | u64 tmp; /* this is required for casting... */ |
| 463 | |
| 464 | tmp = raw_field_value(event, "lockdep_addr", data); |
| 465 | memcpy(&release_event.addr, &tmp, sizeof(void *)); |
| 466 | release_event.name = (char *)raw_field_ptr(event, "name", data); |
| 467 | release_event.file = (char *)raw_field_ptr(event, "file", data); |
| 468 | release_event.line = |
| 469 | (unsigned int)raw_field_value(event, "line", data); |
| 470 | |
| 471 | if (trace_handler->acquire_event) { |
| 472 | trace_handler->release_event(&release_event, |
| 473 | event, cpu, timestamp, thread); |
| 474 | } |
| 475 | } |
| 476 | |
| 477 | static void |
| 478 | process_raw_event(void *data, int cpu, |
| 479 | u64 timestamp, struct thread *thread) |
| 480 | { |
| 481 | struct event *event; |
| 482 | int type; |
| 483 | |
| 484 | type = trace_parse_common_type(data); |
| 485 | event = trace_find_event(type); |
| 486 | |
| 487 | if (!strcmp(event->name, "lock_acquire")) |
| 488 | process_lock_acquire_event(data, event, cpu, timestamp, thread); |
| 489 | if (!strcmp(event->name, "lock_acquired")) |
| 490 | process_lock_acquired_event(data, event, cpu, timestamp, thread); |
| 491 | if (!strcmp(event->name, "lock_contended")) |
| 492 | process_lock_contended_event(data, event, cpu, timestamp, thread); |
| 493 | if (!strcmp(event->name, "lock_release")) |
| 494 | process_lock_release_event(data, event, cpu, timestamp, thread); |
| 495 | } |
| 496 | |
| 497 | static int process_sample_event(event_t *event, struct perf_session *session) |
| 498 | { |
| 499 | struct thread *thread; |
| 500 | struct sample_data data; |
| 501 | |
| 502 | bzero(&data, sizeof(struct sample_data)); |
| 503 | event__parse_sample(event, session->sample_type, &data); |
| 504 | thread = perf_session__findnew(session, data.pid); |
| 505 | |
| 506 | /* |
| 507 | * FIXME: this causes warn on 32bit environment |
| 508 | * because of (void *)data.ip (type of data.ip is u64) |
| 509 | */ |
| 510 | /* dump_printf("(IP, %d): %d/%d: %p period: %llu\n", */ |
| 511 | /* event->header.misc, */ |
| 512 | /* data.pid, data.tid, (void *)data.ip, data.period); */ |
| 513 | |
| 514 | if (thread == NULL) { |
| 515 | pr_debug("problem processing %d event, skipping it.\n", |
| 516 | event->header.type); |
| 517 | return -1; |
| 518 | } |
| 519 | |
| 520 | dump_printf(" ... thread: %s:%d\n", thread->comm, thread->pid); |
| 521 | |
| 522 | if (profile_cpu != -1 && profile_cpu != (int) data.cpu) |
| 523 | return 0; |
| 524 | |
| 525 | process_raw_event(data.raw_data, data.cpu, data.time, thread); |
| 526 | |
| 527 | return 0; |
| 528 | } |
| 529 | |
| 530 | /* TODO: various way to print, coloring, nano or milli sec */ |
| 531 | static void print_result(void) |
| 532 | { |
| 533 | struct lock_stat *st; |
| 534 | char cut_name[20]; |
| 535 | |
| 536 | printf("%18s ", "ID"); |
| 537 | printf("%20s ", "Name"); |
| 538 | printf("%10s ", "acquired"); |
| 539 | printf("%10s ", "contended"); |
| 540 | |
| 541 | printf("%15s ", "total wait (ns)"); |
| 542 | printf("%15s ", "max wait (ns)"); |
| 543 | printf("%15s ", "min wait (ns)"); |
| 544 | |
| 545 | printf("\n\n"); |
| 546 | |
| 547 | while ((st = pop_from_result())) { |
| 548 | bzero(cut_name, 20); |
| 549 | |
| 550 | printf("%p ", st->addr); |
| 551 | |
| 552 | if (strlen(st->name) < 16) { |
| 553 | /* output raw name */ |
| 554 | printf("%20s ", st->name); |
| 555 | } else { |
| 556 | strncpy(cut_name, st->name, 16); |
| 557 | cut_name[16] = '.'; |
| 558 | cut_name[17] = '.'; |
| 559 | cut_name[18] = '.'; |
| 560 | cut_name[19] = '\0'; |
| 561 | /* cut off name for saving output style */ |
| 562 | printf("%20s ", cut_name); |
| 563 | } |
| 564 | |
| 565 | printf("%10u ", st->nr_acquired); |
| 566 | printf("%10u ", st->nr_contended); |
| 567 | |
| 568 | printf("%15llu ", st->wait_time_total); |
| 569 | printf("%15llu ", st->wait_time_max); |
| 570 | printf("%15llu ", st->wait_time_min == ULLONG_MAX ? |
| 571 | 0 : st->wait_time_min); |
| 572 | printf("\n"); |
| 573 | } |
| 574 | } |
| 575 | |
| 576 | static void dump_map(void) |
| 577 | { |
| 578 | unsigned int i; |
| 579 | struct lock_stat *st; |
| 580 | |
| 581 | for (i = 0; i < LOCKHASH_SIZE; i++) { |
| 582 | list_for_each_entry(st, &lockhash_table[i], hash_entry) { |
| 583 | printf("%p: %s (src: %s, line: %u)\n", |
| 584 | st->addr, st->name, st->file, st->line); |
| 585 | } |
| 586 | } |
| 587 | } |
| 588 | |
| 589 | static struct perf_event_ops eops = { |
| 590 | .sample = process_sample_event, |
| 591 | .comm = event__process_comm, |
| 592 | }; |
| 593 | |
| 594 | static struct perf_session *session; |
| 595 | |
| 596 | static int read_events(void) |
| 597 | { |
| 598 | session = perf_session__new(input_name, O_RDONLY, 0); |
| 599 | if (!session) |
| 600 | die("Initializing perf session failed\n"); |
| 601 | |
| 602 | return perf_session__process_events(session, &eops); |
| 603 | } |
| 604 | |
| 605 | static void sort_result(void) |
| 606 | { |
| 607 | unsigned int i; |
| 608 | struct lock_stat *st; |
| 609 | |
| 610 | for (i = 0; i < LOCKHASH_SIZE; i++) { |
| 611 | list_for_each_entry(st, &lockhash_table[i], hash_entry) { |
| 612 | insert_to_result(st, compare); |
| 613 | } |
| 614 | } |
| 615 | } |
| 616 | |
| 617 | static void __cmd_prof(void) |
| 618 | { |
| 619 | setup_pager(); |
| 620 | select_key(); |
| 621 | read_events(); |
| 622 | sort_result(); |
| 623 | print_result(); |
| 624 | } |
| 625 | |
| 626 | static const char * const prof_usage[] = { |
| 627 | "perf sched prof [<options>]", |
| 628 | NULL |
| 629 | }; |
| 630 | |
| 631 | static const struct option prof_options[] = { |
| 632 | OPT_STRING('k', "key", &sort_key, "acquired", |
| 633 | "key for sorting"), |
| 634 | /* TODO: type */ |
| 635 | OPT_END() |
| 636 | }; |
| 637 | |
| 638 | static const char * const lock_usage[] = { |
| 639 | "perf lock [<options>] {record|trace|prof}", |
| 640 | NULL |
| 641 | }; |
| 642 | |
| 643 | static const struct option lock_options[] = { |
| 644 | OPT_STRING('i', "input", &input_name, "file", |
| 645 | "input file name"), |
| 646 | OPT_BOOLEAN('v', "verbose", &verbose, |
| 647 | "be more verbose (show symbol address, etc)"), |
| 648 | OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, |
| 649 | "dump raw trace in ASCII"), |
| 650 | OPT_END() |
| 651 | }; |
| 652 | |
| 653 | static const char *record_args[] = { |
| 654 | "record", |
| 655 | "-a", |
| 656 | "-R", |
| 657 | "-M", |
| 658 | "-f", |
| 659 | "-m", "1024", |
| 660 | "-c", "1", |
| 661 | "-e", "lock:lock_acquire:r", |
| 662 | "-e", "lock:lock_acquired:r", |
| 663 | "-e", "lock:lock_contended:r", |
| 664 | "-e", "lock:lock_release:r", |
| 665 | }; |
| 666 | |
| 667 | static int __cmd_record(int argc, const char **argv) |
| 668 | { |
| 669 | unsigned int rec_argc, i, j; |
| 670 | const char **rec_argv; |
| 671 | |
| 672 | rec_argc = ARRAY_SIZE(record_args) + argc - 1; |
| 673 | rec_argv = calloc(rec_argc + 1, sizeof(char *)); |
| 674 | |
| 675 | for (i = 0; i < ARRAY_SIZE(record_args); i++) |
| 676 | rec_argv[i] = strdup(record_args[i]); |
| 677 | |
| 678 | for (j = 1; j < (unsigned int)argc; j++, i++) |
| 679 | rec_argv[i] = argv[j]; |
| 680 | |
| 681 | BUG_ON(i != rec_argc); |
| 682 | |
| 683 | return cmd_record(i, rec_argv, NULL); |
| 684 | } |
| 685 | |
| 686 | int cmd_lock(int argc, const char **argv, const char *prefix __used) |
| 687 | { |
| 688 | unsigned int i; |
| 689 | |
| 690 | symbol__init(); |
| 691 | for (i = 0; i < LOCKHASH_SIZE; i++) |
| 692 | INIT_LIST_HEAD(lockhash_table + i); |
| 693 | |
| 694 | argc = parse_options(argc, argv, lock_options, lock_usage, |
| 695 | PARSE_OPT_STOP_AT_NON_OPTION); |
| 696 | if (!argc) |
| 697 | usage_with_options(lock_usage, lock_options); |
| 698 | |
| 699 | if (!strncmp(argv[0], "rec", 3)) { |
| 700 | return __cmd_record(argc, argv); |
| 701 | } else if (!strncmp(argv[0], "prof", 4)) { |
| 702 | trace_handler = &prof_lock_ops; |
| 703 | if (argc) { |
| 704 | argc = parse_options(argc, argv, |
| 705 | prof_options, prof_usage, 0); |
| 706 | if (argc) |
| 707 | usage_with_options(prof_usage, prof_options); |
| 708 | } |
| 709 | __cmd_prof(); |
| 710 | } else if (!strcmp(argv[0], "trace")) { |
| 711 | /* Aliased to 'perf trace' */ |
| 712 | return cmd_trace(argc, argv, prefix); |
| 713 | } else if (!strcmp(argv[0], "map")) { |
| 714 | /* recycling prof_lock_ops */ |
| 715 | trace_handler = &prof_lock_ops; |
| 716 | setup_pager(); |
| 717 | read_events(); |
| 718 | dump_map(); |
| 719 | } else { |
| 720 | usage_with_options(lock_usage, lock_options); |
| 721 | } |
| 722 | |
| 723 | return 0; |
| 724 | } |