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Commit | Line | Data |
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0a02ad93 | 1 | #include "builtin.h" |
b1ffe8f3 | 2 | #include "perf.h" |
0a02ad93 IM |
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" | |
b1ffe8f3 | 11 | #include "util/trace-event.h" |
0a02ad93 | 12 | |
0a02ad93 IM |
13 | #include "util/debug.h" |
14 | ||
ec156764 | 15 | #include <sys/types.h> |
b1ffe8f3 | 16 | #include <sys/prctl.h> |
0a02ad93 | 17 | |
b1ffe8f3 IM |
18 | #include <semaphore.h> |
19 | #include <pthread.h> | |
20 | #include <math.h> | |
419ab0d6 | 21 | |
ec156764 IM |
22 | static char const *input_name = "perf.data"; |
23 | static int input; | |
24 | static unsigned long page_size; | |
25 | static unsigned long mmap_window = 32; | |
0a02ad93 | 26 | |
ec156764 | 27 | static unsigned long total_comm = 0; |
0a02ad93 | 28 | |
ec156764 IM |
29 | static struct rb_root threads; |
30 | static struct thread *last_match; | |
0a02ad93 | 31 | |
ec156764 IM |
32 | static struct perf_header *header; |
33 | static u64 sample_type; | |
0a02ad93 | 34 | |
daa1d7a5 FW |
35 | static char default_sort_order[] = "avg, max, switch, runtime"; |
36 | static char *sort_order = default_sort_order; | |
37 | ||
b1ffe8f3 IM |
38 | #define PR_SET_NAME 15 /* Set process name */ |
39 | #define MAX_CPUS 4096 | |
0a02ad93 | 40 | |
b1ffe8f3 | 41 | #define BUG_ON(x) assert(!(x)) |
ec156764 | 42 | |
b1ffe8f3 IM |
43 | static u64 run_measurement_overhead; |
44 | static u64 sleep_measurement_overhead; | |
ec156764 | 45 | |
b1ffe8f3 IM |
46 | #define COMM_LEN 20 |
47 | #define SYM_LEN 129 | |
ec156764 | 48 | |
b1ffe8f3 | 49 | #define MAX_PID 65536 |
ec156764 | 50 | |
b1ffe8f3 | 51 | static unsigned long nr_tasks; |
ec156764 | 52 | |
b1ffe8f3 | 53 | struct sched_event; |
ec156764 | 54 | |
b1ffe8f3 IM |
55 | struct task_desc { |
56 | unsigned long nr; | |
57 | unsigned long pid; | |
58 | char comm[COMM_LEN]; | |
ec156764 | 59 | |
b1ffe8f3 IM |
60 | unsigned long nr_events; |
61 | unsigned long curr_event; | |
62 | struct sched_event **events; | |
63 | ||
64 | pthread_t thread; | |
65 | sem_t sleep_sem; | |
ec156764 | 66 | |
b1ffe8f3 IM |
67 | sem_t ready_for_work; |
68 | sem_t work_done_sem; | |
69 | ||
70 | u64 cpu_usage; | |
71 | }; | |
72 | ||
73 | enum sched_event_type { | |
74 | SCHED_EVENT_RUN, | |
75 | SCHED_EVENT_SLEEP, | |
76 | SCHED_EVENT_WAKEUP, | |
77 | }; | |
78 | ||
79 | struct sched_event { | |
80 | enum sched_event_type type; | |
81 | u64 timestamp; | |
82 | u64 duration; | |
83 | unsigned long nr; | |
84 | int specific_wait; | |
85 | sem_t *wait_sem; | |
86 | struct task_desc *wakee; | |
87 | }; | |
88 | ||
89 | static struct task_desc *pid_to_task[MAX_PID]; | |
90 | ||
91 | static struct task_desc **tasks; | |
92 | ||
93 | static pthread_mutex_t start_work_mutex = PTHREAD_MUTEX_INITIALIZER; | |
94 | static u64 start_time; | |
95 | ||
96 | static pthread_mutex_t work_done_wait_mutex = PTHREAD_MUTEX_INITIALIZER; | |
ec156764 | 97 | |
b1ffe8f3 IM |
98 | static unsigned long nr_run_events; |
99 | static unsigned long nr_sleep_events; | |
100 | static unsigned long nr_wakeup_events; | |
101 | ||
102 | static unsigned long nr_sleep_corrections; | |
103 | static unsigned long nr_run_events_optimized; | |
104 | ||
105 | static unsigned long targetless_wakeups; | |
106 | static unsigned long multitarget_wakeups; | |
107 | ||
108 | static u64 cpu_usage; | |
109 | static u64 runavg_cpu_usage; | |
110 | static u64 parent_cpu_usage; | |
111 | static u64 runavg_parent_cpu_usage; | |
112 | ||
113 | static unsigned long nr_runs; | |
114 | static u64 sum_runtime; | |
115 | static u64 sum_fluct; | |
116 | static u64 run_avg; | |
117 | ||
118 | static unsigned long replay_repeat = 10; | |
ea57c4f5 IM |
119 | static unsigned long nr_timestamps; |
120 | static unsigned long unordered_timestamps; | |
b1ffe8f3 IM |
121 | |
122 | #define TASK_STATE_TO_CHAR_STR "RSDTtZX" | |
123 | ||
124 | enum thread_state { | |
125 | THREAD_SLEEPING = 0, | |
126 | THREAD_WAIT_CPU, | |
127 | THREAD_SCHED_IN, | |
128 | THREAD_IGNORE | |
129 | }; | |
130 | ||
131 | struct work_atom { | |
132 | struct list_head list; | |
133 | enum thread_state state; | |
aa1ab9d2 | 134 | u64 sched_out_time; |
b1ffe8f3 IM |
135 | u64 wake_up_time; |
136 | u64 sched_in_time; | |
137 | u64 runtime; | |
138 | }; | |
139 | ||
140 | struct task_atoms { | |
141 | struct list_head atom_list; | |
142 | struct thread *thread; | |
143 | struct rb_node node; | |
144 | u64 max_lat; | |
145 | u64 total_lat; | |
146 | u64 nb_atoms; | |
147 | u64 total_runtime; | |
148 | }; | |
149 | ||
b5fae128 | 150 | typedef int (*sort_fn_t)(struct task_atoms *, struct task_atoms *); |
b1ffe8f3 IM |
151 | |
152 | static struct rb_root atom_root, sorted_atom_root; | |
153 | ||
154 | static u64 all_runtime; | |
155 | static u64 all_count; | |
156 | ||
157 | static int read_events(void); | |
158 | ||
159 | ||
160 | static u64 get_nsecs(void) | |
ec156764 IM |
161 | { |
162 | struct timespec ts; | |
163 | ||
164 | clock_gettime(CLOCK_MONOTONIC, &ts); | |
165 | ||
166 | return ts.tv_sec * 1000000000ULL + ts.tv_nsec; | |
167 | } | |
168 | ||
b1ffe8f3 | 169 | static void burn_nsecs(u64 nsecs) |
ec156764 | 170 | { |
b1ffe8f3 | 171 | u64 T0 = get_nsecs(), T1; |
ec156764 IM |
172 | |
173 | do { | |
174 | T1 = get_nsecs(); | |
175 | } while (T1 + run_measurement_overhead < T0 + nsecs); | |
176 | } | |
177 | ||
b1ffe8f3 | 178 | static void sleep_nsecs(u64 nsecs) |
ec156764 IM |
179 | { |
180 | struct timespec ts; | |
181 | ||
182 | ts.tv_nsec = nsecs % 999999999; | |
183 | ts.tv_sec = nsecs / 999999999; | |
184 | ||
185 | nanosleep(&ts, NULL); | |
186 | } | |
187 | ||
188 | static void calibrate_run_measurement_overhead(void) | |
189 | { | |
b1ffe8f3 | 190 | u64 T0, T1, delta, min_delta = 1000000000ULL; |
ec156764 IM |
191 | int i; |
192 | ||
193 | for (i = 0; i < 10; i++) { | |
194 | T0 = get_nsecs(); | |
195 | burn_nsecs(0); | |
196 | T1 = get_nsecs(); | |
197 | delta = T1-T0; | |
198 | min_delta = min(min_delta, delta); | |
199 | } | |
200 | run_measurement_overhead = min_delta; | |
201 | ||
ad236fd2 | 202 | printf("run measurement overhead: %Ld nsecs\n", min_delta); |
ec156764 IM |
203 | } |
204 | ||
205 | static void calibrate_sleep_measurement_overhead(void) | |
206 | { | |
b1ffe8f3 | 207 | u64 T0, T1, delta, min_delta = 1000000000ULL; |
ec156764 IM |
208 | int i; |
209 | ||
210 | for (i = 0; i < 10; i++) { | |
211 | T0 = get_nsecs(); | |
212 | sleep_nsecs(10000); | |
213 | T1 = get_nsecs(); | |
214 | delta = T1-T0; | |
215 | min_delta = min(min_delta, delta); | |
216 | } | |
217 | min_delta -= 10000; | |
218 | sleep_measurement_overhead = min_delta; | |
219 | ||
ad236fd2 | 220 | printf("sleep measurement overhead: %Ld nsecs\n", min_delta); |
ec156764 IM |
221 | } |
222 | ||
ec156764 | 223 | static struct sched_event * |
b1ffe8f3 | 224 | get_new_event(struct task_desc *task, u64 timestamp) |
ec156764 IM |
225 | { |
226 | struct sched_event *event = calloc(1, sizeof(*event)); | |
227 | unsigned long idx = task->nr_events; | |
228 | size_t size; | |
229 | ||
230 | event->timestamp = timestamp; | |
231 | event->nr = idx; | |
232 | ||
233 | task->nr_events++; | |
234 | size = sizeof(struct sched_event *) * task->nr_events; | |
235 | task->events = realloc(task->events, size); | |
236 | BUG_ON(!task->events); | |
237 | ||
238 | task->events[idx] = event; | |
239 | ||
240 | return event; | |
241 | } | |
242 | ||
243 | static struct sched_event *last_event(struct task_desc *task) | |
244 | { | |
245 | if (!task->nr_events) | |
246 | return NULL; | |
247 | ||
248 | return task->events[task->nr_events - 1]; | |
249 | } | |
250 | ||
251 | static void | |
b1ffe8f3 | 252 | add_sched_event_run(struct task_desc *task, u64 timestamp, u64 duration) |
ec156764 IM |
253 | { |
254 | struct sched_event *event, *curr_event = last_event(task); | |
255 | ||
256 | /* | |
fbf94829 IM |
257 | * optimize an existing RUN event by merging this one |
258 | * to it: | |
259 | */ | |
ec156764 IM |
260 | if (curr_event && curr_event->type == SCHED_EVENT_RUN) { |
261 | nr_run_events_optimized++; | |
262 | curr_event->duration += duration; | |
263 | return; | |
264 | } | |
265 | ||
266 | event = get_new_event(task, timestamp); | |
267 | ||
268 | event->type = SCHED_EVENT_RUN; | |
269 | event->duration = duration; | |
270 | ||
271 | nr_run_events++; | |
272 | } | |
273 | ||
ec156764 | 274 | static void |
b1ffe8f3 | 275 | add_sched_event_wakeup(struct task_desc *task, u64 timestamp, |
ec156764 IM |
276 | struct task_desc *wakee) |
277 | { | |
278 | struct sched_event *event, *wakee_event; | |
279 | ||
280 | event = get_new_event(task, timestamp); | |
281 | event->type = SCHED_EVENT_WAKEUP; | |
282 | event->wakee = wakee; | |
283 | ||
284 | wakee_event = last_event(wakee); | |
285 | if (!wakee_event || wakee_event->type != SCHED_EVENT_SLEEP) { | |
286 | targetless_wakeups++; | |
287 | return; | |
288 | } | |
289 | if (wakee_event->wait_sem) { | |
290 | multitarget_wakeups++; | |
291 | return; | |
292 | } | |
293 | ||
294 | wakee_event->wait_sem = calloc(1, sizeof(*wakee_event->wait_sem)); | |
295 | sem_init(wakee_event->wait_sem, 0, 0); | |
296 | wakee_event->specific_wait = 1; | |
297 | event->wait_sem = wakee_event->wait_sem; | |
298 | ||
299 | nr_wakeup_events++; | |
300 | } | |
301 | ||
302 | static void | |
b1ffe8f3 | 303 | add_sched_event_sleep(struct task_desc *task, u64 timestamp, |
ad236fd2 | 304 | u64 task_state __used) |
ec156764 IM |
305 | { |
306 | struct sched_event *event = get_new_event(task, timestamp); | |
307 | ||
308 | event->type = SCHED_EVENT_SLEEP; | |
309 | ||
310 | nr_sleep_events++; | |
311 | } | |
312 | ||
313 | static struct task_desc *register_pid(unsigned long pid, const char *comm) | |
314 | { | |
315 | struct task_desc *task; | |
316 | ||
317 | BUG_ON(pid >= MAX_PID); | |
318 | ||
319 | task = pid_to_task[pid]; | |
320 | ||
321 | if (task) | |
322 | return task; | |
323 | ||
324 | task = calloc(1, sizeof(*task)); | |
325 | task->pid = pid; | |
326 | task->nr = nr_tasks; | |
327 | strcpy(task->comm, comm); | |
328 | /* | |
329 | * every task starts in sleeping state - this gets ignored | |
330 | * if there's no wakeup pointing to this sleep state: | |
331 | */ | |
332 | add_sched_event_sleep(task, 0, 0); | |
333 | ||
334 | pid_to_task[pid] = task; | |
335 | nr_tasks++; | |
336 | tasks = realloc(tasks, nr_tasks*sizeof(struct task_task *)); | |
337 | BUG_ON(!tasks); | |
338 | tasks[task->nr] = task; | |
339 | ||
ad236fd2 IM |
340 | if (verbose) |
341 | printf("registered task #%ld, PID %ld (%s)\n", nr_tasks, pid, comm); | |
ec156764 IM |
342 | |
343 | return task; | |
344 | } | |
345 | ||
346 | ||
ec156764 IM |
347 | static void print_task_traces(void) |
348 | { | |
349 | struct task_desc *task; | |
350 | unsigned long i; | |
351 | ||
352 | for (i = 0; i < nr_tasks; i++) { | |
353 | task = tasks[i]; | |
ad236fd2 | 354 | printf("task %6ld (%20s:%10ld), nr_events: %ld\n", |
ec156764 IM |
355 | task->nr, task->comm, task->pid, task->nr_events); |
356 | } | |
357 | } | |
358 | ||
359 | static void add_cross_task_wakeups(void) | |
360 | { | |
361 | struct task_desc *task1, *task2; | |
362 | unsigned long i, j; | |
363 | ||
364 | for (i = 0; i < nr_tasks; i++) { | |
365 | task1 = tasks[i]; | |
366 | j = i + 1; | |
367 | if (j == nr_tasks) | |
368 | j = 0; | |
369 | task2 = tasks[j]; | |
370 | add_sched_event_wakeup(task1, 0, task2); | |
371 | } | |
372 | } | |
373 | ||
374 | static void | |
fbf94829 | 375 | process_sched_event(struct task_desc *this_task __used, struct sched_event *event) |
ec156764 IM |
376 | { |
377 | int ret = 0; | |
b1ffe8f3 | 378 | u64 now; |
ec156764 IM |
379 | long long delta; |
380 | ||
381 | now = get_nsecs(); | |
382 | delta = start_time + event->timestamp - now; | |
383 | ||
ec156764 IM |
384 | switch (event->type) { |
385 | case SCHED_EVENT_RUN: | |
ec156764 IM |
386 | burn_nsecs(event->duration); |
387 | break; | |
388 | case SCHED_EVENT_SLEEP: | |
ec156764 IM |
389 | if (event->wait_sem) |
390 | ret = sem_wait(event->wait_sem); | |
391 | BUG_ON(ret); | |
392 | break; | |
393 | case SCHED_EVENT_WAKEUP: | |
ec156764 IM |
394 | if (event->wait_sem) |
395 | ret = sem_post(event->wait_sem); | |
396 | BUG_ON(ret); | |
397 | break; | |
398 | default: | |
399 | BUG_ON(1); | |
400 | } | |
401 | } | |
402 | ||
b1ffe8f3 | 403 | static u64 get_cpu_usage_nsec_parent(void) |
ec156764 IM |
404 | { |
405 | struct rusage ru; | |
b1ffe8f3 | 406 | u64 sum; |
ec156764 IM |
407 | int err; |
408 | ||
409 | err = getrusage(RUSAGE_SELF, &ru); | |
410 | BUG_ON(err); | |
411 | ||
412 | sum = ru.ru_utime.tv_sec*1e9 + ru.ru_utime.tv_usec*1e3; | |
413 | sum += ru.ru_stime.tv_sec*1e9 + ru.ru_stime.tv_usec*1e3; | |
414 | ||
415 | return sum; | |
416 | } | |
417 | ||
b1ffe8f3 | 418 | static u64 get_cpu_usage_nsec_self(void) |
ec156764 IM |
419 | { |
420 | char filename [] = "/proc/1234567890/sched"; | |
421 | unsigned long msecs, nsecs; | |
422 | char *line = NULL; | |
b1ffe8f3 | 423 | u64 total = 0; |
ec156764 IM |
424 | size_t len = 0; |
425 | ssize_t chars; | |
426 | FILE *file; | |
427 | int ret; | |
428 | ||
429 | sprintf(filename, "/proc/%d/sched", getpid()); | |
430 | file = fopen(filename, "r"); | |
431 | BUG_ON(!file); | |
432 | ||
433 | while ((chars = getline(&line, &len, file)) != -1) { | |
ec156764 IM |
434 | ret = sscanf(line, "se.sum_exec_runtime : %ld.%06ld\n", |
435 | &msecs, &nsecs); | |
436 | if (ret == 2) { | |
437 | total = msecs*1e6 + nsecs; | |
ec156764 IM |
438 | break; |
439 | } | |
440 | } | |
441 | if (line) | |
442 | free(line); | |
443 | fclose(file); | |
444 | ||
445 | return total; | |
446 | } | |
447 | ||
448 | static void *thread_func(void *ctx) | |
449 | { | |
450 | struct task_desc *this_task = ctx; | |
b1ffe8f3 | 451 | u64 cpu_usage_0, cpu_usage_1; |
ec156764 IM |
452 | unsigned long i, ret; |
453 | char comm2[22]; | |
454 | ||
ec156764 IM |
455 | sprintf(comm2, ":%s", this_task->comm); |
456 | prctl(PR_SET_NAME, comm2); | |
457 | ||
458 | again: | |
459 | ret = sem_post(&this_task->ready_for_work); | |
460 | BUG_ON(ret); | |
ec156764 IM |
461 | ret = pthread_mutex_lock(&start_work_mutex); |
462 | BUG_ON(ret); | |
463 | ret = pthread_mutex_unlock(&start_work_mutex); | |
464 | BUG_ON(ret); | |
ec156764 IM |
465 | |
466 | cpu_usage_0 = get_cpu_usage_nsec_self(); | |
467 | ||
468 | for (i = 0; i < this_task->nr_events; i++) { | |
469 | this_task->curr_event = i; | |
470 | process_sched_event(this_task, this_task->events[i]); | |
471 | } | |
472 | ||
473 | cpu_usage_1 = get_cpu_usage_nsec_self(); | |
474 | this_task->cpu_usage = cpu_usage_1 - cpu_usage_0; | |
475 | ||
ec156764 IM |
476 | ret = sem_post(&this_task->work_done_sem); |
477 | BUG_ON(ret); | |
ec156764 IM |
478 | |
479 | ret = pthread_mutex_lock(&work_done_wait_mutex); | |
480 | BUG_ON(ret); | |
481 | ret = pthread_mutex_unlock(&work_done_wait_mutex); | |
482 | BUG_ON(ret); | |
ec156764 IM |
483 | |
484 | goto again; | |
485 | } | |
486 | ||
487 | static void create_tasks(void) | |
488 | { | |
489 | struct task_desc *task; | |
490 | pthread_attr_t attr; | |
491 | unsigned long i; | |
492 | int err; | |
493 | ||
494 | err = pthread_attr_init(&attr); | |
495 | BUG_ON(err); | |
496 | err = pthread_attr_setstacksize(&attr, (size_t)(16*1024)); | |
497 | BUG_ON(err); | |
498 | err = pthread_mutex_lock(&start_work_mutex); | |
499 | BUG_ON(err); | |
500 | err = pthread_mutex_lock(&work_done_wait_mutex); | |
501 | BUG_ON(err); | |
502 | for (i = 0; i < nr_tasks; i++) { | |
503 | task = tasks[i]; | |
504 | sem_init(&task->sleep_sem, 0, 0); | |
505 | sem_init(&task->ready_for_work, 0, 0); | |
506 | sem_init(&task->work_done_sem, 0, 0); | |
507 | task->curr_event = 0; | |
508 | err = pthread_create(&task->thread, &attr, thread_func, task); | |
509 | BUG_ON(err); | |
510 | } | |
511 | } | |
512 | ||
ec156764 IM |
513 | static void wait_for_tasks(void) |
514 | { | |
b1ffe8f3 | 515 | u64 cpu_usage_0, cpu_usage_1; |
ec156764 IM |
516 | struct task_desc *task; |
517 | unsigned long i, ret; | |
518 | ||
ec156764 | 519 | start_time = get_nsecs(); |
ec156764 IM |
520 | cpu_usage = 0; |
521 | pthread_mutex_unlock(&work_done_wait_mutex); | |
522 | ||
523 | for (i = 0; i < nr_tasks; i++) { | |
524 | task = tasks[i]; | |
525 | ret = sem_wait(&task->ready_for_work); | |
526 | BUG_ON(ret); | |
527 | sem_init(&task->ready_for_work, 0, 0); | |
528 | } | |
529 | ret = pthread_mutex_lock(&work_done_wait_mutex); | |
530 | BUG_ON(ret); | |
531 | ||
532 | cpu_usage_0 = get_cpu_usage_nsec_parent(); | |
533 | ||
534 | pthread_mutex_unlock(&start_work_mutex); | |
535 | ||
ec156764 IM |
536 | for (i = 0; i < nr_tasks; i++) { |
537 | task = tasks[i]; | |
538 | ret = sem_wait(&task->work_done_sem); | |
539 | BUG_ON(ret); | |
540 | sem_init(&task->work_done_sem, 0, 0); | |
541 | cpu_usage += task->cpu_usage; | |
542 | task->cpu_usage = 0; | |
543 | } | |
544 | ||
545 | cpu_usage_1 = get_cpu_usage_nsec_parent(); | |
546 | if (!runavg_cpu_usage) | |
547 | runavg_cpu_usage = cpu_usage; | |
548 | runavg_cpu_usage = (runavg_cpu_usage*9 + cpu_usage)/10; | |
549 | ||
550 | parent_cpu_usage = cpu_usage_1 - cpu_usage_0; | |
551 | if (!runavg_parent_cpu_usage) | |
552 | runavg_parent_cpu_usage = parent_cpu_usage; | |
553 | runavg_parent_cpu_usage = (runavg_parent_cpu_usage*9 + | |
554 | parent_cpu_usage)/10; | |
555 | ||
556 | ret = pthread_mutex_lock(&start_work_mutex); | |
557 | BUG_ON(ret); | |
558 | ||
559 | for (i = 0; i < nr_tasks; i++) { | |
560 | task = tasks[i]; | |
561 | sem_init(&task->sleep_sem, 0, 0); | |
562 | task->curr_event = 0; | |
563 | } | |
564 | } | |
565 | ||
ec156764 IM |
566 | static void run_one_test(void) |
567 | { | |
b1ffe8f3 | 568 | u64 T0, T1, delta, avg_delta, fluct, std_dev; |
ec156764 IM |
569 | |
570 | T0 = get_nsecs(); | |
571 | wait_for_tasks(); | |
572 | T1 = get_nsecs(); | |
573 | ||
574 | delta = T1 - T0; | |
575 | sum_runtime += delta; | |
576 | nr_runs++; | |
577 | ||
578 | avg_delta = sum_runtime / nr_runs; | |
579 | if (delta < avg_delta) | |
580 | fluct = avg_delta - delta; | |
581 | else | |
582 | fluct = delta - avg_delta; | |
583 | sum_fluct += fluct; | |
584 | std_dev = sum_fluct / nr_runs / sqrt(nr_runs); | |
585 | if (!run_avg) | |
586 | run_avg = delta; | |
587 | run_avg = (run_avg*9 + delta)/10; | |
588 | ||
ad236fd2 | 589 | printf("#%-3ld: %0.3f, ", |
ec156764 IM |
590 | nr_runs, (double)delta/1000000.0); |
591 | ||
ad236fd2 | 592 | printf("ravg: %0.2f, ", |
ec156764 IM |
593 | (double)run_avg/1e6); |
594 | ||
ad236fd2 | 595 | printf("cpu: %0.2f / %0.2f", |
ec156764 IM |
596 | (double)cpu_usage/1e6, (double)runavg_cpu_usage/1e6); |
597 | ||
598 | #if 0 | |
599 | /* | |
fbf94829 IM |
600 | * rusage statistics done by the parent, these are less |
601 | * accurate than the sum_exec_runtime based statistics: | |
602 | */ | |
ad236fd2 | 603 | printf(" [%0.2f / %0.2f]", |
ec156764 IM |
604 | (double)parent_cpu_usage/1e6, |
605 | (double)runavg_parent_cpu_usage/1e6); | |
606 | #endif | |
607 | ||
ad236fd2 | 608 | printf("\n"); |
ec156764 IM |
609 | |
610 | if (nr_sleep_corrections) | |
ad236fd2 | 611 | printf(" (%ld sleep corrections)\n", nr_sleep_corrections); |
ec156764 IM |
612 | nr_sleep_corrections = 0; |
613 | } | |
614 | ||
615 | static void test_calibrations(void) | |
616 | { | |
b1ffe8f3 | 617 | u64 T0, T1; |
ec156764 IM |
618 | |
619 | T0 = get_nsecs(); | |
620 | burn_nsecs(1e6); | |
621 | T1 = get_nsecs(); | |
622 | ||
ad236fd2 | 623 | printf("the run test took %Ld nsecs\n", T1-T0); |
ec156764 IM |
624 | |
625 | T0 = get_nsecs(); | |
626 | sleep_nsecs(1e6); | |
627 | T1 = get_nsecs(); | |
628 | ||
ad236fd2 | 629 | printf("the sleep test took %Ld nsecs\n", T1-T0); |
ec156764 IM |
630 | } |
631 | ||
46f392c9 IM |
632 | static void __cmd_replay(void) |
633 | { | |
f2858d8a | 634 | unsigned long i; |
46f392c9 IM |
635 | |
636 | calibrate_run_measurement_overhead(); | |
637 | calibrate_sleep_measurement_overhead(); | |
638 | ||
639 | test_calibrations(); | |
640 | ||
641 | read_events(); | |
642 | ||
643 | printf("nr_run_events: %ld\n", nr_run_events); | |
644 | printf("nr_sleep_events: %ld\n", nr_sleep_events); | |
645 | printf("nr_wakeup_events: %ld\n", nr_wakeup_events); | |
646 | ||
647 | if (targetless_wakeups) | |
648 | printf("target-less wakeups: %ld\n", targetless_wakeups); | |
649 | if (multitarget_wakeups) | |
650 | printf("multi-target wakeups: %ld\n", multitarget_wakeups); | |
651 | if (nr_run_events_optimized) | |
652 | printf("run events optimized: %ld\n", | |
653 | nr_run_events_optimized); | |
654 | ||
655 | print_task_traces(); | |
656 | add_cross_task_wakeups(); | |
657 | ||
658 | create_tasks(); | |
659 | printf("------------------------------------------------------------\n"); | |
f2858d8a | 660 | for (i = 0; i < replay_repeat; i++) |
46f392c9 IM |
661 | run_one_test(); |
662 | } | |
663 | ||
0a02ad93 IM |
664 | static int |
665 | process_comm_event(event_t *event, unsigned long offset, unsigned long head) | |
666 | { | |
667 | struct thread *thread; | |
668 | ||
669 | thread = threads__findnew(event->comm.pid, &threads, &last_match); | |
670 | ||
671 | dump_printf("%p [%p]: PERF_EVENT_COMM: %s:%d\n", | |
672 | (void *)(offset + head), | |
673 | (void *)(long)(event->header.size), | |
674 | event->comm.comm, event->comm.pid); | |
675 | ||
676 | if (thread == NULL || | |
677 | thread__set_comm(thread, event->comm.comm)) { | |
678 | dump_printf("problem processing PERF_EVENT_COMM, skipping event.\n"); | |
679 | return -1; | |
680 | } | |
681 | total_comm++; | |
682 | ||
683 | return 0; | |
684 | } | |
685 | ||
46538818 FW |
686 | |
687 | struct raw_event_sample { | |
688 | u32 size; | |
689 | char data[0]; | |
690 | }; | |
691 | ||
692 | #define FILL_FIELD(ptr, field, event, data) \ | |
693 | ptr.field = (typeof(ptr.field)) raw_field_value(event, #field, data) | |
694 | ||
695 | #define FILL_ARRAY(ptr, array, event, data) \ | |
696 | do { \ | |
697 | void *__array = raw_field_ptr(event, #array, data); \ | |
698 | memcpy(ptr.array, __array, sizeof(ptr.array)); \ | |
699 | } while(0) | |
700 | ||
701 | #define FILL_COMMON_FIELDS(ptr, event, data) \ | |
702 | do { \ | |
703 | FILL_FIELD(ptr, common_type, event, data); \ | |
704 | FILL_FIELD(ptr, common_flags, event, data); \ | |
705 | FILL_FIELD(ptr, common_preempt_count, event, data); \ | |
706 | FILL_FIELD(ptr, common_pid, event, data); \ | |
707 | FILL_FIELD(ptr, common_tgid, event, data); \ | |
708 | } while (0) | |
709 | ||
419ab0d6 FW |
710 | |
711 | ||
712 | struct trace_switch_event { | |
713 | u32 size; | |
714 | ||
715 | u16 common_type; | |
716 | u8 common_flags; | |
717 | u8 common_preempt_count; | |
718 | u32 common_pid; | |
719 | u32 common_tgid; | |
720 | ||
721 | char prev_comm[16]; | |
722 | u32 prev_pid; | |
723 | u32 prev_prio; | |
724 | u64 prev_state; | |
725 | char next_comm[16]; | |
726 | u32 next_pid; | |
727 | u32 next_prio; | |
728 | }; | |
729 | ||
730 | ||
fbf94829 IM |
731 | struct trace_wakeup_event { |
732 | u32 size; | |
733 | ||
734 | u16 common_type; | |
735 | u8 common_flags; | |
736 | u8 common_preempt_count; | |
737 | u32 common_pid; | |
738 | u32 common_tgid; | |
739 | ||
740 | char comm[16]; | |
741 | u32 pid; | |
742 | ||
743 | u32 prio; | |
744 | u32 success; | |
745 | u32 cpu; | |
746 | }; | |
747 | ||
419ab0d6 FW |
748 | struct trace_fork_event { |
749 | u32 size; | |
46538818 | 750 | |
419ab0d6 FW |
751 | u16 common_type; |
752 | u8 common_flags; | |
753 | u8 common_preempt_count; | |
754 | u32 common_pid; | |
755 | u32 common_tgid; | |
756 | ||
757 | char parent_comm[16]; | |
758 | u32 parent_pid; | |
759 | char child_comm[16]; | |
760 | u32 child_pid; | |
761 | }; | |
762 | ||
763 | struct trace_sched_handler { | |
764 | void (*switch_event)(struct trace_switch_event *, | |
765 | struct event *, | |
766 | int cpu, | |
767 | u64 timestamp, | |
768 | struct thread *thread); | |
769 | ||
770 | void (*wakeup_event)(struct trace_wakeup_event *, | |
771 | struct event *, | |
772 | int cpu, | |
773 | u64 timestamp, | |
774 | struct thread *thread); | |
775 | ||
776 | void (*fork_event)(struct trace_fork_event *, | |
777 | struct event *, | |
778 | int cpu, | |
779 | u64 timestamp, | |
780 | struct thread *thread); | |
781 | }; | |
46538818 | 782 | |
46538818 | 783 | |
419ab0d6 FW |
784 | static void |
785 | replay_wakeup_event(struct trace_wakeup_event *wakeup_event, | |
786 | struct event *event, | |
787 | int cpu __used, | |
788 | u64 timestamp __used, | |
789 | struct thread *thread __used) | |
790 | { | |
791 | struct task_desc *waker, *wakee; | |
fbf94829 | 792 | |
ad236fd2 IM |
793 | if (verbose) { |
794 | printf("sched_wakeup event %p\n", event); | |
fbf94829 | 795 | |
ad236fd2 | 796 | printf(" ... pid %d woke up %s/%d\n", |
419ab0d6 FW |
797 | wakeup_event->common_pid, |
798 | wakeup_event->comm, | |
799 | wakeup_event->pid); | |
ad236fd2 | 800 | } |
fbf94829 | 801 | |
419ab0d6 FW |
802 | waker = register_pid(wakeup_event->common_pid, "<unknown>"); |
803 | wakee = register_pid(wakeup_event->pid, wakeup_event->comm); | |
fbf94829 IM |
804 | |
805 | add_sched_event_wakeup(waker, timestamp, wakee); | |
ec156764 IM |
806 | } |
807 | ||
419ab0d6 | 808 | static unsigned long cpu_last_switched[MAX_CPUS]; |
fbf94829 IM |
809 | |
810 | static void | |
419ab0d6 FW |
811 | replay_switch_event(struct trace_switch_event *switch_event, |
812 | struct event *event, | |
813 | int cpu, | |
814 | u64 timestamp, | |
815 | struct thread *thread __used) | |
ec156764 | 816 | { |
fbf94829 IM |
817 | struct task_desc *prev, *next; |
818 | u64 timestamp0; | |
819 | s64 delta; | |
820 | ||
ad236fd2 IM |
821 | if (verbose) |
822 | printf("sched_switch event %p\n", event); | |
823 | ||
fbf94829 IM |
824 | if (cpu >= MAX_CPUS || cpu < 0) |
825 | return; | |
826 | ||
827 | timestamp0 = cpu_last_switched[cpu]; | |
828 | if (timestamp0) | |
829 | delta = timestamp - timestamp0; | |
830 | else | |
831 | delta = 0; | |
832 | ||
833 | if (delta < 0) | |
834 | die("hm, delta: %Ld < 0 ?\n", delta); | |
835 | ||
ad236fd2 IM |
836 | if (verbose) { |
837 | printf(" ... switch from %s/%d to %s/%d [ran %Ld nsecs]\n", | |
419ab0d6 FW |
838 | switch_event->prev_comm, switch_event->prev_pid, |
839 | switch_event->next_comm, switch_event->next_pid, | |
ad236fd2 IM |
840 | delta); |
841 | } | |
fbf94829 | 842 | |
419ab0d6 FW |
843 | prev = register_pid(switch_event->prev_pid, switch_event->prev_comm); |
844 | next = register_pid(switch_event->next_pid, switch_event->next_comm); | |
fbf94829 IM |
845 | |
846 | cpu_last_switched[cpu] = timestamp; | |
847 | ||
848 | add_sched_event_run(prev, timestamp, delta); | |
419ab0d6 | 849 | add_sched_event_sleep(prev, timestamp, switch_event->prev_state); |
fbf94829 IM |
850 | } |
851 | ||
fbf94829 | 852 | |
419ab0d6 FW |
853 | static void |
854 | replay_fork_event(struct trace_fork_event *fork_event, | |
855 | struct event *event, | |
856 | int cpu __used, | |
857 | u64 timestamp __used, | |
858 | struct thread *thread __used) | |
859 | { | |
860 | if (verbose) { | |
861 | printf("sched_fork event %p\n", event); | |
862 | printf("... parent: %s/%d\n", fork_event->parent_comm, fork_event->parent_pid); | |
863 | printf("... child: %s/%d\n", fork_event->child_comm, fork_event->child_pid); | |
864 | } | |
865 | register_pid(fork_event->parent_pid, fork_event->parent_comm); | |
866 | register_pid(fork_event->child_pid, fork_event->child_comm); | |
867 | } | |
fbf94829 | 868 | |
419ab0d6 | 869 | static struct trace_sched_handler replay_ops = { |
ea92ed5a IM |
870 | .wakeup_event = replay_wakeup_event, |
871 | .switch_event = replay_switch_event, | |
872 | .fork_event = replay_fork_event, | |
fbf94829 IM |
873 | }; |
874 | ||
b1ffe8f3 IM |
875 | struct sort_dimension { |
876 | const char *name; | |
b5fae128 | 877 | sort_fn_t cmp; |
b1ffe8f3 IM |
878 | struct list_head list; |
879 | }; | |
880 | ||
881 | static LIST_HEAD(cmp_pid); | |
882 | ||
daa1d7a5 | 883 | static int |
b5fae128 | 884 | thread_lat_cmp(struct list_head *list, struct task_atoms *l, struct task_atoms *r) |
daa1d7a5 FW |
885 | { |
886 | struct sort_dimension *sort; | |
887 | int ret = 0; | |
888 | ||
b5fae128 IM |
889 | BUG_ON(list_empty(list)); |
890 | ||
daa1d7a5 FW |
891 | list_for_each_entry(sort, list, list) { |
892 | ret = sort->cmp(l, r); | |
893 | if (ret) | |
894 | return ret; | |
895 | } | |
896 | ||
897 | return ret; | |
898 | } | |
899 | ||
b5fae128 IM |
900 | static struct task_atoms * |
901 | thread_atoms_search(struct rb_root *root, struct thread *thread, | |
902 | struct list_head *sort_list) | |
903 | { | |
904 | struct rb_node *node = root->rb_node; | |
905 | struct task_atoms key = { .thread = thread }; | |
906 | ||
907 | while (node) { | |
908 | struct task_atoms *atoms; | |
909 | int cmp; | |
910 | ||
911 | atoms = container_of(node, struct task_atoms, node); | |
912 | ||
913 | cmp = thread_lat_cmp(sort_list, &key, atoms); | |
914 | if (cmp > 0) | |
915 | node = node->rb_left; | |
916 | else if (cmp < 0) | |
917 | node = node->rb_right; | |
918 | else { | |
919 | BUG_ON(thread != atoms->thread); | |
920 | return atoms; | |
921 | } | |
922 | } | |
923 | return NULL; | |
924 | } | |
925 | ||
cdce9d73 | 926 | static void |
daa1d7a5 FW |
927 | __thread_latency_insert(struct rb_root *root, struct task_atoms *data, |
928 | struct list_head *sort_list) | |
cdce9d73 FW |
929 | { |
930 | struct rb_node **new = &(root->rb_node), *parent = NULL; | |
931 | ||
932 | while (*new) { | |
17562205 | 933 | struct task_atoms *this; |
daa1d7a5 | 934 | int cmp; |
cdce9d73 | 935 | |
17562205 | 936 | this = container_of(*new, struct task_atoms, node); |
cdce9d73 | 937 | parent = *new; |
daa1d7a5 FW |
938 | |
939 | cmp = thread_lat_cmp(sort_list, data, this); | |
940 | ||
941 | if (cmp > 0) | |
cdce9d73 | 942 | new = &((*new)->rb_left); |
cdce9d73 | 943 | else |
daa1d7a5 | 944 | new = &((*new)->rb_right); |
cdce9d73 FW |
945 | } |
946 | ||
947 | rb_link_node(&data->node, parent, new); | |
948 | rb_insert_color(&data->node, root); | |
949 | } | |
950 | ||
b1ffe8f3 | 951 | static void thread_atoms_insert(struct thread *thread) |
cdce9d73 | 952 | { |
17562205 | 953 | struct task_atoms *atoms; |
b1ffe8f3 | 954 | |
17562205 FW |
955 | atoms = calloc(sizeof(*atoms), 1); |
956 | if (!atoms) | |
cdce9d73 FW |
957 | die("No memory"); |
958 | ||
17562205 | 959 | atoms->thread = thread; |
b1ffe8f3 IM |
960 | INIT_LIST_HEAD(&atoms->atom_list); |
961 | __thread_latency_insert(&atom_root, atoms, &cmp_pid); | |
cdce9d73 FW |
962 | } |
963 | ||
964 | static void | |
965 | latency_fork_event(struct trace_fork_event *fork_event __used, | |
966 | struct event *event __used, | |
967 | int cpu __used, | |
968 | u64 timestamp __used, | |
969 | struct thread *thread __used) | |
970 | { | |
971 | /* should insert the newcomer */ | |
972 | } | |
973 | ||
ea92ed5a | 974 | __used |
cdce9d73 FW |
975 | static char sched_out_state(struct trace_switch_event *switch_event) |
976 | { | |
977 | const char *str = TASK_STATE_TO_CHAR_STR; | |
978 | ||
979 | return str[switch_event->prev_state]; | |
980 | } | |
981 | ||
982 | static void | |
17562205 | 983 | lat_sched_out(struct task_atoms *atoms, |
c6ced611 FW |
984 | struct trace_switch_event *switch_event __used, |
985 | u64 delta, | |
986 | u64 timestamp) | |
cdce9d73 | 987 | { |
b1ffe8f3 | 988 | struct work_atom *atom; |
cdce9d73 | 989 | |
b1ffe8f3 IM |
990 | atom = calloc(sizeof(*atom), 1); |
991 | if (!atom) | |
cdce9d73 FW |
992 | die("Non memory"); |
993 | ||
aa1ab9d2 FW |
994 | atom->sched_out_time = timestamp; |
995 | ||
c6ced611 | 996 | if (sched_out_state(switch_event) == 'R') { |
b1ffe8f3 | 997 | atom->state = THREAD_WAIT_CPU; |
aa1ab9d2 | 998 | atom->wake_up_time = atom->sched_out_time; |
c6ced611 FW |
999 | } |
1000 | ||
b1ffe8f3 IM |
1001 | atom->runtime = delta; |
1002 | list_add_tail(&atom->list, &atoms->atom_list); | |
cdce9d73 FW |
1003 | } |
1004 | ||
1005 | static void | |
17562205 | 1006 | lat_sched_in(struct task_atoms *atoms, u64 timestamp) |
cdce9d73 | 1007 | { |
b1ffe8f3 | 1008 | struct work_atom *atom; |
66685678 | 1009 | u64 delta; |
cdce9d73 | 1010 | |
b1ffe8f3 | 1011 | if (list_empty(&atoms->atom_list)) |
cdce9d73 FW |
1012 | return; |
1013 | ||
b1ffe8f3 | 1014 | atom = list_entry(atoms->atom_list.prev, struct work_atom, list); |
cdce9d73 | 1015 | |
b1ffe8f3 | 1016 | if (atom->state != THREAD_WAIT_CPU) |
cdce9d73 FW |
1017 | return; |
1018 | ||
b1ffe8f3 IM |
1019 | if (timestamp < atom->wake_up_time) { |
1020 | atom->state = THREAD_IGNORE; | |
cdce9d73 FW |
1021 | return; |
1022 | } | |
1023 | ||
b1ffe8f3 IM |
1024 | atom->state = THREAD_SCHED_IN; |
1025 | atom->sched_in_time = timestamp; | |
66685678 | 1026 | |
b1ffe8f3 | 1027 | delta = atom->sched_in_time - atom->wake_up_time; |
66685678 FW |
1028 | atoms->total_lat += delta; |
1029 | if (delta > atoms->max_lat) | |
1030 | atoms->max_lat = delta; | |
1031 | atoms->nb_atoms++; | |
b1ffe8f3 | 1032 | atoms->total_runtime += atom->runtime; |
cdce9d73 FW |
1033 | } |
1034 | ||
cdce9d73 FW |
1035 | static void |
1036 | latency_switch_event(struct trace_switch_event *switch_event, | |
1037 | struct event *event __used, | |
ea92ed5a | 1038 | int cpu, |
cdce9d73 FW |
1039 | u64 timestamp, |
1040 | struct thread *thread __used) | |
1041 | { | |
17562205 | 1042 | struct task_atoms *out_atoms, *in_atoms; |
cdce9d73 | 1043 | struct thread *sched_out, *sched_in; |
ea92ed5a IM |
1044 | u64 timestamp0; |
1045 | s64 delta; | |
1046 | ||
1047 | if (cpu >= MAX_CPUS || cpu < 0) | |
1048 | return; | |
1049 | ||
1050 | timestamp0 = cpu_last_switched[cpu]; | |
1051 | cpu_last_switched[cpu] = timestamp; | |
1052 | if (timestamp0) | |
1053 | delta = timestamp - timestamp0; | |
1054 | else | |
1055 | delta = 0; | |
1056 | ||
1057 | if (delta < 0) | |
1058 | die("hm, delta: %Ld < 0 ?\n", delta); | |
1059 | ||
cdce9d73 FW |
1060 | |
1061 | sched_out = threads__findnew(switch_event->prev_pid, &threads, &last_match); | |
1062 | sched_in = threads__findnew(switch_event->next_pid, &threads, &last_match); | |
1063 | ||
b5fae128 | 1064 | in_atoms = thread_atoms_search(&atom_root, sched_in, &cmp_pid); |
17562205 | 1065 | if (!in_atoms) { |
b1ffe8f3 | 1066 | thread_atoms_insert(sched_in); |
b5fae128 | 1067 | in_atoms = thread_atoms_search(&atom_root, sched_in, &cmp_pid); |
17562205 | 1068 | if (!in_atoms) |
b1ffe8f3 | 1069 | die("in-atom: Internal tree error"); |
cdce9d73 FW |
1070 | } |
1071 | ||
b5fae128 | 1072 | out_atoms = thread_atoms_search(&atom_root, sched_out, &cmp_pid); |
17562205 | 1073 | if (!out_atoms) { |
b1ffe8f3 | 1074 | thread_atoms_insert(sched_out); |
b5fae128 | 1075 | out_atoms = thread_atoms_search(&atom_root, sched_out, &cmp_pid); |
17562205 | 1076 | if (!out_atoms) |
b1ffe8f3 | 1077 | die("out-atom: Internal tree error"); |
cdce9d73 FW |
1078 | } |
1079 | ||
17562205 | 1080 | lat_sched_in(in_atoms, timestamp); |
c6ced611 | 1081 | lat_sched_out(out_atoms, switch_event, delta, timestamp); |
cdce9d73 FW |
1082 | } |
1083 | ||
1084 | static void | |
1085 | latency_wakeup_event(struct trace_wakeup_event *wakeup_event, | |
1086 | struct event *event __used, | |
1087 | int cpu __used, | |
1088 | u64 timestamp, | |
1089 | struct thread *thread __used) | |
1090 | { | |
17562205 | 1091 | struct task_atoms *atoms; |
b1ffe8f3 | 1092 | struct work_atom *atom; |
cdce9d73 FW |
1093 | struct thread *wakee; |
1094 | ||
1095 | /* Note for later, it may be interesting to observe the failing cases */ | |
1096 | if (!wakeup_event->success) | |
1097 | return; | |
1098 | ||
1099 | wakee = threads__findnew(wakeup_event->pid, &threads, &last_match); | |
b5fae128 | 1100 | atoms = thread_atoms_search(&atom_root, wakee, &cmp_pid); |
17562205 | 1101 | if (!atoms) { |
b1ffe8f3 | 1102 | thread_atoms_insert(wakee); |
cdce9d73 FW |
1103 | return; |
1104 | } | |
1105 | ||
b1ffe8f3 | 1106 | if (list_empty(&atoms->atom_list)) |
cdce9d73 FW |
1107 | return; |
1108 | ||
b1ffe8f3 | 1109 | atom = list_entry(atoms->atom_list.prev, struct work_atom, list); |
cdce9d73 | 1110 | |
b1ffe8f3 | 1111 | if (atom->state != THREAD_SLEEPING) |
cdce9d73 FW |
1112 | return; |
1113 | ||
ea57c4f5 IM |
1114 | nr_timestamps++; |
1115 | if (atom->sched_out_time > timestamp) { | |
1116 | unordered_timestamps++; | |
aa1ab9d2 | 1117 | return; |
ea57c4f5 | 1118 | } |
aa1ab9d2 | 1119 | |
b1ffe8f3 IM |
1120 | atom->state = THREAD_WAIT_CPU; |
1121 | atom->wake_up_time = timestamp; | |
cdce9d73 FW |
1122 | } |
1123 | ||
1124 | static struct trace_sched_handler lat_ops = { | |
ea92ed5a IM |
1125 | .wakeup_event = latency_wakeup_event, |
1126 | .switch_event = latency_switch_event, | |
1127 | .fork_event = latency_fork_event, | |
cdce9d73 FW |
1128 | }; |
1129 | ||
17562205 | 1130 | static void output_lat_thread(struct task_atoms *atom_list) |
cdce9d73 | 1131 | { |
cdce9d73 FW |
1132 | int i; |
1133 | int ret; | |
66685678 | 1134 | u64 avg; |
cdce9d73 | 1135 | |
66685678 | 1136 | if (!atom_list->nb_atoms) |
cdce9d73 | 1137 | return; |
ea57c4f5 IM |
1138 | /* |
1139 | * Ignore idle threads: | |
1140 | */ | |
1141 | if (!atom_list->thread->pid) | |
1142 | return; | |
cdce9d73 | 1143 | |
66685678 FW |
1144 | all_runtime += atom_list->total_runtime; |
1145 | all_count += atom_list->nb_atoms; | |
1146 | ||
17562205 | 1147 | ret = printf(" %s ", atom_list->thread->comm); |
cdce9d73 | 1148 | |
d9340c1d | 1149 | for (i = 0; i < 19 - ret; i++) |
cdce9d73 FW |
1150 | printf(" "); |
1151 | ||
66685678 | 1152 | avg = atom_list->total_lat / atom_list->nb_atoms; |
cdce9d73 | 1153 | |
66685678 | 1154 | printf("|%9.3f ms |%9llu | avg:%9.3f ms | max:%9.3f ms |\n", |
73622626 FW |
1155 | (double)atom_list->total_runtime / 1e6, |
1156 | atom_list->nb_atoms, (double)avg / 1e6, | |
1157 | (double)atom_list->max_lat / 1e6); | |
cdce9d73 FW |
1158 | } |
1159 | ||
daa1d7a5 FW |
1160 | static int pid_cmp(struct task_atoms *l, struct task_atoms *r) |
1161 | { | |
daa1d7a5 FW |
1162 | if (l->thread->pid < r->thread->pid) |
1163 | return -1; | |
1164 | if (l->thread->pid > r->thread->pid) | |
1165 | return 1; | |
1166 | ||
1167 | return 0; | |
1168 | } | |
1169 | ||
1170 | static struct sort_dimension pid_sort_dimension = { | |
b5fae128 IM |
1171 | .name = "pid", |
1172 | .cmp = pid_cmp, | |
daa1d7a5 FW |
1173 | }; |
1174 | ||
1175 | static int avg_cmp(struct task_atoms *l, struct task_atoms *r) | |
1176 | { | |
1177 | u64 avgl, avgr; | |
1178 | ||
1179 | if (!l->nb_atoms) | |
1180 | return -1; | |
1181 | ||
1182 | if (!r->nb_atoms) | |
1183 | return 1; | |
1184 | ||
1185 | avgl = l->total_lat / l->nb_atoms; | |
1186 | avgr = r->total_lat / r->nb_atoms; | |
1187 | ||
1188 | if (avgl < avgr) | |
1189 | return -1; | |
1190 | if (avgl > avgr) | |
1191 | return 1; | |
1192 | ||
1193 | return 0; | |
1194 | } | |
1195 | ||
1196 | static struct sort_dimension avg_sort_dimension = { | |
b5fae128 IM |
1197 | .name = "avg", |
1198 | .cmp = avg_cmp, | |
daa1d7a5 FW |
1199 | }; |
1200 | ||
1201 | static int max_cmp(struct task_atoms *l, struct task_atoms *r) | |
1202 | { | |
1203 | if (l->max_lat < r->max_lat) | |
1204 | return -1; | |
1205 | if (l->max_lat > r->max_lat) | |
1206 | return 1; | |
1207 | ||
1208 | return 0; | |
1209 | } | |
1210 | ||
1211 | static struct sort_dimension max_sort_dimension = { | |
b5fae128 IM |
1212 | .name = "max", |
1213 | .cmp = max_cmp, | |
daa1d7a5 FW |
1214 | }; |
1215 | ||
1216 | static int switch_cmp(struct task_atoms *l, struct task_atoms *r) | |
1217 | { | |
1218 | if (l->nb_atoms < r->nb_atoms) | |
1219 | return -1; | |
1220 | if (l->nb_atoms > r->nb_atoms) | |
1221 | return 1; | |
1222 | ||
1223 | return 0; | |
1224 | } | |
1225 | ||
1226 | static struct sort_dimension switch_sort_dimension = { | |
b5fae128 IM |
1227 | .name = "switch", |
1228 | .cmp = switch_cmp, | |
daa1d7a5 FW |
1229 | }; |
1230 | ||
1231 | static int runtime_cmp(struct task_atoms *l, struct task_atoms *r) | |
1232 | { | |
1233 | if (l->total_runtime < r->total_runtime) | |
1234 | return -1; | |
1235 | if (l->total_runtime > r->total_runtime) | |
1236 | return 1; | |
1237 | ||
1238 | return 0; | |
1239 | } | |
1240 | ||
1241 | static struct sort_dimension runtime_sort_dimension = { | |
b5fae128 IM |
1242 | .name = "runtime", |
1243 | .cmp = runtime_cmp, | |
daa1d7a5 FW |
1244 | }; |
1245 | ||
1246 | static struct sort_dimension *available_sorts[] = { | |
1247 | &pid_sort_dimension, | |
1248 | &avg_sort_dimension, | |
1249 | &max_sort_dimension, | |
1250 | &switch_sort_dimension, | |
1251 | &runtime_sort_dimension, | |
1252 | }; | |
1253 | ||
1254 | #define NB_AVAILABLE_SORTS (int)(sizeof(available_sorts) / sizeof(struct sort_dimension *)) | |
1255 | ||
1256 | static LIST_HEAD(sort_list); | |
1257 | ||
1258 | static int sort_dimension__add(char *tok, struct list_head *list) | |
1259 | { | |
1260 | int i; | |
1261 | ||
1262 | for (i = 0; i < NB_AVAILABLE_SORTS; i++) { | |
1263 | if (!strcmp(available_sorts[i]->name, tok)) { | |
1264 | list_add_tail(&available_sorts[i]->list, list); | |
1265 | ||
1266 | return 0; | |
1267 | } | |
1268 | } | |
1269 | ||
1270 | return -1; | |
1271 | } | |
1272 | ||
1273 | static void setup_sorting(void); | |
1274 | ||
1275 | static void sort_lat(void) | |
1276 | { | |
1277 | struct rb_node *node; | |
1278 | ||
1279 | for (;;) { | |
1280 | struct task_atoms *data; | |
b1ffe8f3 | 1281 | node = rb_first(&atom_root); |
daa1d7a5 FW |
1282 | if (!node) |
1283 | break; | |
1284 | ||
b1ffe8f3 | 1285 | rb_erase(node, &atom_root); |
daa1d7a5 | 1286 | data = rb_entry(node, struct task_atoms, node); |
b1ffe8f3 | 1287 | __thread_latency_insert(&sorted_atom_root, data, &sort_list); |
daa1d7a5 FW |
1288 | } |
1289 | } | |
1290 | ||
46f392c9 | 1291 | static void __cmd_lat(void) |
cdce9d73 FW |
1292 | { |
1293 | struct rb_node *next; | |
1294 | ||
46f392c9 IM |
1295 | setup_pager(); |
1296 | read_events(); | |
daa1d7a5 | 1297 | sort_lat(); |
46f392c9 | 1298 | |
d9340c1d | 1299 | printf("-----------------------------------------------------------------------------------\n"); |
3e304147 | 1300 | printf(" Task | Runtime ms | Switches | Average delay ms | Maximum delay ms |\n"); |
d9340c1d | 1301 | printf("-----------------------------------------------------------------------------------\n"); |
cdce9d73 | 1302 | |
b1ffe8f3 | 1303 | next = rb_first(&sorted_atom_root); |
cdce9d73 FW |
1304 | |
1305 | while (next) { | |
17562205 | 1306 | struct task_atoms *atom_list; |
cdce9d73 | 1307 | |
17562205 FW |
1308 | atom_list = rb_entry(next, struct task_atoms, node); |
1309 | output_lat_thread(atom_list); | |
cdce9d73 FW |
1310 | next = rb_next(next); |
1311 | } | |
d9340c1d IM |
1312 | |
1313 | printf("-----------------------------------------------------------------------------------\n"); | |
ea57c4f5 | 1314 | printf(" TOTAL: |%9.3f ms |%9Ld |", |
73622626 | 1315 | (double)all_runtime/1e6, all_count); |
ea57c4f5 IM |
1316 | |
1317 | if (unordered_timestamps && nr_timestamps) { | |
1318 | printf(" INFO: %.2f%% unordered events.\n", | |
1319 | (double)unordered_timestamps/(double)nr_timestamps*100.0); | |
1320 | } else { | |
1321 | printf("\n"); | |
1322 | } | |
1323 | ||
3e304147 | 1324 | printf("---------------------------------------------\n"); |
cdce9d73 | 1325 | } |
419ab0d6 FW |
1326 | |
1327 | static struct trace_sched_handler *trace_handler; | |
1328 | ||
fbf94829 | 1329 | static void |
419ab0d6 FW |
1330 | process_sched_wakeup_event(struct raw_event_sample *raw, |
1331 | struct event *event, | |
1332 | int cpu __used, | |
1333 | u64 timestamp __used, | |
1334 | struct thread *thread __used) | |
1335 | { | |
1336 | struct trace_wakeup_event wakeup_event; | |
1337 | ||
1338 | FILL_COMMON_FIELDS(wakeup_event, event, raw->data); | |
1339 | ||
1340 | FILL_ARRAY(wakeup_event, comm, event, raw->data); | |
1341 | FILL_FIELD(wakeup_event, pid, event, raw->data); | |
1342 | FILL_FIELD(wakeup_event, prio, event, raw->data); | |
1343 | FILL_FIELD(wakeup_event, success, event, raw->data); | |
1344 | FILL_FIELD(wakeup_event, cpu, event, raw->data); | |
1345 | ||
1346 | trace_handler->wakeup_event(&wakeup_event, event, cpu, timestamp, thread); | |
1347 | } | |
1348 | ||
1349 | static void | |
1350 | process_sched_switch_event(struct raw_event_sample *raw, | |
1351 | struct event *event, | |
1352 | int cpu __used, | |
1353 | u64 timestamp __used, | |
1354 | struct thread *thread __used) | |
1355 | { | |
1356 | struct trace_switch_event switch_event; | |
1357 | ||
1358 | FILL_COMMON_FIELDS(switch_event, event, raw->data); | |
1359 | ||
1360 | FILL_ARRAY(switch_event, prev_comm, event, raw->data); | |
1361 | FILL_FIELD(switch_event, prev_pid, event, raw->data); | |
1362 | FILL_FIELD(switch_event, prev_prio, event, raw->data); | |
1363 | FILL_FIELD(switch_event, prev_state, event, raw->data); | |
1364 | FILL_ARRAY(switch_event, next_comm, event, raw->data); | |
1365 | FILL_FIELD(switch_event, next_pid, event, raw->data); | |
1366 | FILL_FIELD(switch_event, next_prio, event, raw->data); | |
1367 | ||
1368 | trace_handler->switch_event(&switch_event, event, cpu, timestamp, thread); | |
1369 | } | |
1370 | ||
1371 | static void | |
1372 | process_sched_fork_event(struct raw_event_sample *raw, | |
1373 | struct event *event, | |
1374 | int cpu __used, | |
1375 | u64 timestamp __used, | |
1376 | struct thread *thread __used) | |
fbf94829 | 1377 | { |
46538818 FW |
1378 | struct trace_fork_event fork_event; |
1379 | ||
1380 | FILL_COMMON_FIELDS(fork_event, event, raw->data); | |
1381 | ||
1382 | FILL_ARRAY(fork_event, parent_comm, event, raw->data); | |
1383 | FILL_FIELD(fork_event, parent_pid, event, raw->data); | |
1384 | FILL_ARRAY(fork_event, child_comm, event, raw->data); | |
1385 | FILL_FIELD(fork_event, child_pid, event, raw->data); | |
1386 | ||
419ab0d6 | 1387 | trace_handler->fork_event(&fork_event, event, cpu, timestamp, thread); |
fbf94829 IM |
1388 | } |
1389 | ||
419ab0d6 FW |
1390 | static void |
1391 | process_sched_exit_event(struct event *event, | |
1392 | int cpu __used, | |
1393 | u64 timestamp __used, | |
1394 | struct thread *thread __used) | |
fbf94829 | 1395 | { |
ad236fd2 IM |
1396 | if (verbose) |
1397 | printf("sched_exit event %p\n", event); | |
ec156764 IM |
1398 | } |
1399 | ||
1400 | static void | |
ad236fd2 | 1401 | process_raw_event(event_t *raw_event __used, void *more_data, |
ec156764 IM |
1402 | int cpu, u64 timestamp, struct thread *thread) |
1403 | { | |
46538818 | 1404 | struct raw_event_sample *raw = more_data; |
ec156764 IM |
1405 | struct event *event; |
1406 | int type; | |
1407 | ||
1408 | type = trace_parse_common_type(raw->data); | |
1409 | event = trace_find_event(type); | |
1410 | ||
ec156764 | 1411 | if (!strcmp(event->name, "sched_switch")) |
46538818 | 1412 | process_sched_switch_event(raw, event, cpu, timestamp, thread); |
ec156764 | 1413 | if (!strcmp(event->name, "sched_wakeup")) |
46538818 | 1414 | process_sched_wakeup_event(raw, event, cpu, timestamp, thread); |
fbf94829 | 1415 | if (!strcmp(event->name, "sched_wakeup_new")) |
46538818 | 1416 | process_sched_wakeup_event(raw, event, cpu, timestamp, thread); |
fbf94829 | 1417 | if (!strcmp(event->name, "sched_process_fork")) |
46538818 | 1418 | process_sched_fork_event(raw, event, cpu, timestamp, thread); |
fbf94829 IM |
1419 | if (!strcmp(event->name, "sched_process_exit")) |
1420 | process_sched_exit_event(event, cpu, timestamp, thread); | |
ec156764 IM |
1421 | } |
1422 | ||
0a02ad93 IM |
1423 | static int |
1424 | process_sample_event(event_t *event, unsigned long offset, unsigned long head) | |
1425 | { | |
1426 | char level; | |
1427 | int show = 0; | |
1428 | struct dso *dso = NULL; | |
1429 | struct thread *thread; | |
1430 | u64 ip = event->ip.ip; | |
1431 | u64 timestamp = -1; | |
1432 | u32 cpu = -1; | |
1433 | u64 period = 1; | |
1434 | void *more_data = event->ip.__more_data; | |
1435 | int cpumode; | |
1436 | ||
1437 | thread = threads__findnew(event->ip.pid, &threads, &last_match); | |
1438 | ||
1439 | if (sample_type & PERF_SAMPLE_TIME) { | |
1440 | timestamp = *(u64 *)more_data; | |
1441 | more_data += sizeof(u64); | |
1442 | } | |
1443 | ||
1444 | if (sample_type & PERF_SAMPLE_CPU) { | |
1445 | cpu = *(u32 *)more_data; | |
1446 | more_data += sizeof(u32); | |
1447 | more_data += sizeof(u32); /* reserved */ | |
1448 | } | |
1449 | ||
1450 | if (sample_type & PERF_SAMPLE_PERIOD) { | |
1451 | period = *(u64 *)more_data; | |
1452 | more_data += sizeof(u64); | |
1453 | } | |
1454 | ||
1455 | dump_printf("%p [%p]: PERF_EVENT_SAMPLE (IP, %d): %d/%d: %p period: %Ld\n", | |
1456 | (void *)(offset + head), | |
1457 | (void *)(long)(event->header.size), | |
1458 | event->header.misc, | |
1459 | event->ip.pid, event->ip.tid, | |
1460 | (void *)(long)ip, | |
1461 | (long long)period); | |
1462 | ||
1463 | dump_printf(" ... thread: %s:%d\n", thread->comm, thread->pid); | |
1464 | ||
1465 | if (thread == NULL) { | |
1466 | eprintf("problem processing %d event, skipping it.\n", | |
1467 | event->header.type); | |
1468 | return -1; | |
1469 | } | |
1470 | ||
1471 | cpumode = event->header.misc & PERF_EVENT_MISC_CPUMODE_MASK; | |
1472 | ||
1473 | if (cpumode == PERF_EVENT_MISC_KERNEL) { | |
1474 | show = SHOW_KERNEL; | |
1475 | level = 'k'; | |
1476 | ||
1477 | dso = kernel_dso; | |
1478 | ||
1479 | dump_printf(" ...... dso: %s\n", dso->name); | |
1480 | ||
1481 | } else if (cpumode == PERF_EVENT_MISC_USER) { | |
1482 | ||
1483 | show = SHOW_USER; | |
1484 | level = '.'; | |
1485 | ||
1486 | } else { | |
1487 | show = SHOW_HV; | |
1488 | level = 'H'; | |
1489 | ||
1490 | dso = hypervisor_dso; | |
1491 | ||
1492 | dump_printf(" ...... dso: [hypervisor]\n"); | |
1493 | } | |
1494 | ||
ec156764 IM |
1495 | if (sample_type & PERF_SAMPLE_RAW) |
1496 | process_raw_event(event, more_data, cpu, timestamp, thread); | |
0a02ad93 IM |
1497 | |
1498 | return 0; | |
1499 | } | |
1500 | ||
1501 | static int | |
1502 | process_event(event_t *event, unsigned long offset, unsigned long head) | |
1503 | { | |
1504 | trace_event(event); | |
1505 | ||
1506 | switch (event->header.type) { | |
1507 | case PERF_EVENT_MMAP ... PERF_EVENT_LOST: | |
1508 | return 0; | |
1509 | ||
1510 | case PERF_EVENT_COMM: | |
1511 | return process_comm_event(event, offset, head); | |
1512 | ||
1513 | case PERF_EVENT_EXIT ... PERF_EVENT_READ: | |
1514 | return 0; | |
1515 | ||
1516 | case PERF_EVENT_SAMPLE: | |
1517 | return process_sample_event(event, offset, head); | |
1518 | ||
1519 | case PERF_EVENT_MAX: | |
1520 | default: | |
1521 | return -1; | |
1522 | } | |
1523 | ||
1524 | return 0; | |
1525 | } | |
1526 | ||
46f392c9 | 1527 | static int read_events(void) |
0a02ad93 IM |
1528 | { |
1529 | int ret, rc = EXIT_FAILURE; | |
1530 | unsigned long offset = 0; | |
1531 | unsigned long head = 0; | |
1532 | struct stat perf_stat; | |
1533 | event_t *event; | |
1534 | uint32_t size; | |
1535 | char *buf; | |
1536 | ||
1537 | trace_report(); | |
1538 | register_idle_thread(&threads, &last_match); | |
1539 | ||
1540 | input = open(input_name, O_RDONLY); | |
1541 | if (input < 0) { | |
1542 | perror("failed to open file"); | |
1543 | exit(-1); | |
1544 | } | |
1545 | ||
1546 | ret = fstat(input, &perf_stat); | |
1547 | if (ret < 0) { | |
1548 | perror("failed to stat file"); | |
1549 | exit(-1); | |
1550 | } | |
1551 | ||
1552 | if (!perf_stat.st_size) { | |
1553 | fprintf(stderr, "zero-sized file, nothing to do!\n"); | |
1554 | exit(0); | |
1555 | } | |
1556 | header = perf_header__read(input); | |
1557 | head = header->data_offset; | |
1558 | sample_type = perf_header__sample_type(header); | |
1559 | ||
1560 | if (!(sample_type & PERF_SAMPLE_RAW)) | |
1561 | die("No trace sample to read. Did you call perf record " | |
1562 | "without -R?"); | |
1563 | ||
1564 | if (load_kernel() < 0) { | |
1565 | perror("failed to load kernel symbols"); | |
1566 | return EXIT_FAILURE; | |
1567 | } | |
1568 | ||
1569 | remap: | |
1570 | buf = (char *)mmap(NULL, page_size * mmap_window, PROT_READ, | |
1571 | MAP_SHARED, input, offset); | |
1572 | if (buf == MAP_FAILED) { | |
1573 | perror("failed to mmap file"); | |
1574 | exit(-1); | |
1575 | } | |
1576 | ||
1577 | more: | |
1578 | event = (event_t *)(buf + head); | |
1579 | ||
1580 | size = event->header.size; | |
1581 | if (!size) | |
1582 | size = 8; | |
1583 | ||
1584 | if (head + event->header.size >= page_size * mmap_window) { | |
1585 | unsigned long shift = page_size * (head / page_size); | |
1586 | int res; | |
1587 | ||
1588 | res = munmap(buf, page_size * mmap_window); | |
1589 | assert(res == 0); | |
1590 | ||
1591 | offset += shift; | |
1592 | head -= shift; | |
1593 | goto remap; | |
1594 | } | |
1595 | ||
1596 | size = event->header.size; | |
1597 | ||
1598 | ||
1599 | if (!size || process_event(event, offset, head) < 0) { | |
1600 | ||
1601 | /* | |
1602 | * assume we lost track of the stream, check alignment, and | |
1603 | * increment a single u64 in the hope to catch on again 'soon'. | |
1604 | */ | |
1605 | ||
1606 | if (unlikely(head & 7)) | |
1607 | head &= ~7ULL; | |
1608 | ||
1609 | size = 8; | |
1610 | } | |
1611 | ||
1612 | head += size; | |
1613 | ||
1614 | if (offset + head < (unsigned long)perf_stat.st_size) | |
1615 | goto more; | |
1616 | ||
1617 | rc = EXIT_SUCCESS; | |
1618 | close(input); | |
1619 | ||
1620 | return rc; | |
1621 | } | |
1622 | ||
46f392c9 | 1623 | static const char * const sched_usage[] = { |
c13f0d3c | 1624 | "perf sched [<options>] {record|latency|replay|trace}", |
0a02ad93 IM |
1625 | NULL |
1626 | }; | |
1627 | ||
f2858d8a IM |
1628 | static const struct option sched_options[] = { |
1629 | OPT_BOOLEAN('v', "verbose", &verbose, | |
1630 | "be more verbose (show symbol address, etc)"), | |
0a02ad93 IM |
1631 | OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, |
1632 | "dump raw trace in ASCII"), | |
f2858d8a IM |
1633 | OPT_END() |
1634 | }; | |
1635 | ||
1636 | static const char * const latency_usage[] = { | |
1637 | "perf sched latency [<options>]", | |
1638 | NULL | |
1639 | }; | |
1640 | ||
1641 | static const struct option latency_options[] = { | |
daa1d7a5 FW |
1642 | OPT_STRING('s', "sort", &sort_order, "key[,key2...]", |
1643 | "sort by key(s): runtime, switch, avg, max"), | |
0a02ad93 IM |
1644 | OPT_BOOLEAN('v', "verbose", &verbose, |
1645 | "be more verbose (show symbol address, etc)"), | |
f2858d8a IM |
1646 | OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, |
1647 | "dump raw trace in ASCII"), | |
1648 | OPT_END() | |
1649 | }; | |
1650 | ||
1651 | static const char * const replay_usage[] = { | |
1652 | "perf sched replay [<options>]", | |
1653 | NULL | |
1654 | }; | |
1655 | ||
1656 | static const struct option replay_options[] = { | |
1657 | OPT_INTEGER('r', "repeat", &replay_repeat, | |
1658 | "repeat the workload replay N times (-1: infinite)"), | |
1659 | OPT_BOOLEAN('v', "verbose", &verbose, | |
1660 | "be more verbose (show symbol address, etc)"), | |
1661 | OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, | |
1662 | "dump raw trace in ASCII"), | |
0a02ad93 IM |
1663 | OPT_END() |
1664 | }; | |
1665 | ||
daa1d7a5 FW |
1666 | static void setup_sorting(void) |
1667 | { | |
1668 | char *tmp, *tok, *str = strdup(sort_order); | |
1669 | ||
1670 | for (tok = strtok_r(str, ", ", &tmp); | |
1671 | tok; tok = strtok_r(NULL, ", ", &tmp)) { | |
1672 | if (sort_dimension__add(tok, &sort_list) < 0) { | |
1673 | error("Unknown --sort key: `%s'", tok); | |
f2858d8a | 1674 | usage_with_options(latency_usage, latency_options); |
daa1d7a5 FW |
1675 | } |
1676 | } | |
1677 | ||
1678 | free(str); | |
1679 | ||
1680 | sort_dimension__add((char *)"pid", &cmp_pid); | |
1681 | } | |
1682 | ||
1fc35b29 IM |
1683 | static const char *record_args[] = { |
1684 | "record", | |
1685 | "-a", | |
1686 | "-R", | |
d1302522 | 1687 | "-M", |
ea57c4f5 | 1688 | "-f", |
1fc35b29 IM |
1689 | "-c", "1", |
1690 | "-e", "sched:sched_switch:r", | |
1691 | "-e", "sched:sched_stat_wait:r", | |
1692 | "-e", "sched:sched_stat_sleep:r", | |
1693 | "-e", "sched:sched_stat_iowait:r", | |
ea57c4f5 | 1694 | "-e", "sched:sched_stat_runtime:r", |
1fc35b29 IM |
1695 | "-e", "sched:sched_process_exit:r", |
1696 | "-e", "sched:sched_process_fork:r", | |
1697 | "-e", "sched:sched_wakeup:r", | |
1698 | "-e", "sched:sched_migrate_task:r", | |
1699 | }; | |
1700 | ||
1701 | static int __cmd_record(int argc, const char **argv) | |
1702 | { | |
1703 | unsigned int rec_argc, i, j; | |
1704 | const char **rec_argv; | |
1705 | ||
1706 | rec_argc = ARRAY_SIZE(record_args) + argc - 1; | |
1707 | rec_argv = calloc(rec_argc + 1, sizeof(char *)); | |
1708 | ||
1709 | for (i = 0; i < ARRAY_SIZE(record_args); i++) | |
1710 | rec_argv[i] = strdup(record_args[i]); | |
1711 | ||
1712 | for (j = 1; j < (unsigned int)argc; j++, i++) | |
1713 | rec_argv[i] = argv[j]; | |
1714 | ||
1715 | BUG_ON(i != rec_argc); | |
1716 | ||
1717 | return cmd_record(i, rec_argv, NULL); | |
1718 | } | |
1719 | ||
0a02ad93 IM |
1720 | int cmd_sched(int argc, const char **argv, const char *prefix __used) |
1721 | { | |
1722 | symbol__init(); | |
1723 | page_size = getpagesize(); | |
1724 | ||
f2858d8a IM |
1725 | argc = parse_options(argc, argv, sched_options, sched_usage, |
1726 | PARSE_OPT_STOP_AT_NON_OPTION); | |
1727 | if (!argc) | |
1728 | usage_with_options(sched_usage, sched_options); | |
0a02ad93 | 1729 | |
1fc35b29 IM |
1730 | if (!strncmp(argv[0], "rec", 3)) { |
1731 | return __cmd_record(argc, argv); | |
1732 | } else if (!strncmp(argv[0], "lat", 3)) { | |
cdce9d73 | 1733 | trace_handler = &lat_ops; |
f2858d8a IM |
1734 | if (argc > 1) { |
1735 | argc = parse_options(argc, argv, latency_options, latency_usage, 0); | |
1736 | if (argc) | |
1737 | usage_with_options(latency_usage, latency_options); | |
f2858d8a | 1738 | } |
b5fae128 | 1739 | setup_sorting(); |
46f392c9 | 1740 | __cmd_lat(); |
f2858d8a IM |
1741 | } else if (!strncmp(argv[0], "rep", 3)) { |
1742 | trace_handler = &replay_ops; | |
1743 | if (argc) { | |
1744 | argc = parse_options(argc, argv, replay_options, replay_usage, 0); | |
1745 | if (argc) | |
1746 | usage_with_options(replay_usage, replay_options); | |
1747 | } | |
1748 | __cmd_replay(); | |
c13f0d3c IM |
1749 | } else if (!strcmp(argv[0], "trace")) { |
1750 | /* | |
1751 | * Aliased to 'perf trace' for now: | |
1752 | */ | |
1753 | return cmd_trace(argc, argv, prefix); | |
f2858d8a IM |
1754 | } else { |
1755 | usage_with_options(sched_usage, sched_options); | |
1756 | } | |
1757 | ||
ec156764 | 1758 | return 0; |
0a02ad93 | 1759 | } |