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Merge tag 'for-5.5/dm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device...
[mirror_ubuntu-jammy-kernel.git] / tools / perf / builtin-stat.c
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * builtin-stat.c
4 *
5 * Builtin stat command: Give a precise performance counters summary
6 * overview about any workload, CPU or specific PID.
7 *
8 * Sample output:
9
10 $ perf stat ./hackbench 10
11
12 Time: 0.118
13
14 Performance counter stats for './hackbench 10':
15
16 1708.761321 task-clock # 11.037 CPUs utilized
17 41,190 context-switches # 0.024 M/sec
18 6,735 CPU-migrations # 0.004 M/sec
19 17,318 page-faults # 0.010 M/sec
20 5,205,202,243 cycles # 3.046 GHz
21 3,856,436,920 stalled-cycles-frontend # 74.09% frontend cycles idle
22 1,600,790,871 stalled-cycles-backend # 30.75% backend cycles idle
23 2,603,501,247 instructions # 0.50 insns per cycle
24 # 1.48 stalled cycles per insn
25 484,357,498 branches # 283.455 M/sec
26 6,388,934 branch-misses # 1.32% of all branches
27
28 0.154822978 seconds time elapsed
29
30 *
31 * Copyright (C) 2008-2011, Red Hat Inc, Ingo Molnar <mingo@redhat.com>
32 *
33 * Improvements and fixes by:
34 *
35 * Arjan van de Ven <arjan@linux.intel.com>
36 * Yanmin Zhang <yanmin.zhang@intel.com>
37 * Wu Fengguang <fengguang.wu@intel.com>
38 * Mike Galbraith <efault@gmx.de>
39 * Paul Mackerras <paulus@samba.org>
40 * Jaswinder Singh Rajput <jaswinder@kernel.org>
41 */
42
43 #include "builtin.h"
44 #include "perf.h"
45 #include "util/cgroup.h"
46 #include <subcmd/parse-options.h>
47 #include "util/parse-events.h"
48 #include "util/pmu.h"
49 #include "util/event.h"
50 #include "util/evlist.h"
51 #include "util/evsel.h"
52 #include "util/debug.h"
53 #include "util/color.h"
54 #include "util/stat.h"
55 #include "util/header.h"
56 #include "util/cpumap.h"
57 #include "util/thread_map.h"
58 #include "util/counts.h"
59 #include "util/group.h"
60 #include "util/session.h"
61 #include "util/tool.h"
62 #include "util/string2.h"
63 #include "util/metricgroup.h"
64 #include "util/synthetic-events.h"
65 #include "util/target.h"
66 #include "util/time-utils.h"
67 #include "util/top.h"
68 #include "asm/bug.h"
69
70 #include <linux/time64.h>
71 #include <linux/zalloc.h>
72 #include <api/fs/fs.h>
73 #include <errno.h>
74 #include <signal.h>
75 #include <stdlib.h>
76 #include <sys/prctl.h>
77 #include <inttypes.h>
78 #include <locale.h>
79 #include <math.h>
80 #include <sys/types.h>
81 #include <sys/stat.h>
82 #include <sys/wait.h>
83 #include <unistd.h>
84 #include <sys/time.h>
85 #include <sys/resource.h>
86 #include <linux/err.h>
87
88 #include <linux/ctype.h>
89 #include <perf/evlist.h>
90
91 #define DEFAULT_SEPARATOR " "
92 #define FREEZE_ON_SMI_PATH "devices/cpu/freeze_on_smi"
93
94 static void print_counters(struct timespec *ts, int argc, const char **argv);
95
96 /* Default events used for perf stat -T */
97 static const char *transaction_attrs = {
98 "task-clock,"
99 "{"
100 "instructions,"
101 "cycles,"
102 "cpu/cycles-t/,"
103 "cpu/tx-start/,"
104 "cpu/el-start/,"
105 "cpu/cycles-ct/"
106 "}"
107 };
108
109 /* More limited version when the CPU does not have all events. */
110 static const char * transaction_limited_attrs = {
111 "task-clock,"
112 "{"
113 "instructions,"
114 "cycles,"
115 "cpu/cycles-t/,"
116 "cpu/tx-start/"
117 "}"
118 };
119
120 static const char * topdown_attrs[] = {
121 "topdown-total-slots",
122 "topdown-slots-retired",
123 "topdown-recovery-bubbles",
124 "topdown-fetch-bubbles",
125 "topdown-slots-issued",
126 NULL,
127 };
128
129 static const char *smi_cost_attrs = {
130 "{"
131 "msr/aperf/,"
132 "msr/smi/,"
133 "cycles"
134 "}"
135 };
136
137 static struct evlist *evsel_list;
138
139 static struct target target = {
140 .uid = UINT_MAX,
141 };
142
143 #define METRIC_ONLY_LEN 20
144
145 static volatile pid_t child_pid = -1;
146 static int detailed_run = 0;
147 static bool transaction_run;
148 static bool topdown_run = false;
149 static bool smi_cost = false;
150 static bool smi_reset = false;
151 static int big_num_opt = -1;
152 static bool group = false;
153 static const char *pre_cmd = NULL;
154 static const char *post_cmd = NULL;
155 static bool sync_run = false;
156 static bool forever = false;
157 static bool force_metric_only = false;
158 static struct timespec ref_time;
159 static bool append_file;
160 static bool interval_count;
161 static const char *output_name;
162 static int output_fd;
163
164 struct perf_stat {
165 bool record;
166 struct perf_data data;
167 struct perf_session *session;
168 u64 bytes_written;
169 struct perf_tool tool;
170 bool maps_allocated;
171 struct perf_cpu_map *cpus;
172 struct perf_thread_map *threads;
173 enum aggr_mode aggr_mode;
174 };
175
176 static struct perf_stat perf_stat;
177 #define STAT_RECORD perf_stat.record
178
179 static volatile int done = 0;
180
181 static struct perf_stat_config stat_config = {
182 .aggr_mode = AGGR_GLOBAL,
183 .scale = true,
184 .unit_width = 4, /* strlen("unit") */
185 .run_count = 1,
186 .metric_only_len = METRIC_ONLY_LEN,
187 .walltime_nsecs_stats = &walltime_nsecs_stats,
188 .big_num = true,
189 };
190
191 static inline void diff_timespec(struct timespec *r, struct timespec *a,
192 struct timespec *b)
193 {
194 r->tv_sec = a->tv_sec - b->tv_sec;
195 if (a->tv_nsec < b->tv_nsec) {
196 r->tv_nsec = a->tv_nsec + NSEC_PER_SEC - b->tv_nsec;
197 r->tv_sec--;
198 } else {
199 r->tv_nsec = a->tv_nsec - b->tv_nsec ;
200 }
201 }
202
203 static void perf_stat__reset_stats(void)
204 {
205 int i;
206
207 perf_evlist__reset_stats(evsel_list);
208 perf_stat__reset_shadow_stats();
209
210 for (i = 0; i < stat_config.stats_num; i++)
211 perf_stat__reset_shadow_per_stat(&stat_config.stats[i]);
212 }
213
214 static int process_synthesized_event(struct perf_tool *tool __maybe_unused,
215 union perf_event *event,
216 struct perf_sample *sample __maybe_unused,
217 struct machine *machine __maybe_unused)
218 {
219 if (perf_data__write(&perf_stat.data, event, event->header.size) < 0) {
220 pr_err("failed to write perf data, error: %m\n");
221 return -1;
222 }
223
224 perf_stat.bytes_written += event->header.size;
225 return 0;
226 }
227
228 static int write_stat_round_event(u64 tm, u64 type)
229 {
230 return perf_event__synthesize_stat_round(NULL, tm, type,
231 process_synthesized_event,
232 NULL);
233 }
234
235 #define WRITE_STAT_ROUND_EVENT(time, interval) \
236 write_stat_round_event(time, PERF_STAT_ROUND_TYPE__ ## interval)
237
238 #define SID(e, x, y) xyarray__entry(e->core.sample_id, x, y)
239
240 static int
241 perf_evsel__write_stat_event(struct evsel *counter, u32 cpu, u32 thread,
242 struct perf_counts_values *count)
243 {
244 struct perf_sample_id *sid = SID(counter, cpu, thread);
245
246 return perf_event__synthesize_stat(NULL, cpu, thread, sid->id, count,
247 process_synthesized_event, NULL);
248 }
249
250 static int read_single_counter(struct evsel *counter, int cpu,
251 int thread, struct timespec *rs)
252 {
253 if (counter->tool_event == PERF_TOOL_DURATION_TIME) {
254 u64 val = rs->tv_nsec + rs->tv_sec*1000000000ULL;
255 struct perf_counts_values *count =
256 perf_counts(counter->counts, cpu, thread);
257 count->ena = count->run = val;
258 count->val = val;
259 return 0;
260 }
261 return perf_evsel__read_counter(counter, cpu, thread);
262 }
263
264 /*
265 * Read out the results of a single counter:
266 * do not aggregate counts across CPUs in system-wide mode
267 */
268 static int read_counter(struct evsel *counter, struct timespec *rs)
269 {
270 int nthreads = perf_thread_map__nr(evsel_list->core.threads);
271 int ncpus, cpu, thread;
272
273 if (target__has_cpu(&target) && !target__has_per_thread(&target))
274 ncpus = perf_evsel__nr_cpus(counter);
275 else
276 ncpus = 1;
277
278 if (!counter->supported)
279 return -ENOENT;
280
281 if (counter->core.system_wide)
282 nthreads = 1;
283
284 for (thread = 0; thread < nthreads; thread++) {
285 for (cpu = 0; cpu < ncpus; cpu++) {
286 struct perf_counts_values *count;
287
288 count = perf_counts(counter->counts, cpu, thread);
289
290 /*
291 * The leader's group read loads data into its group members
292 * (via perf_evsel__read_counter) and sets threir count->loaded.
293 */
294 if (!perf_counts__is_loaded(counter->counts, cpu, thread) &&
295 read_single_counter(counter, cpu, thread, rs)) {
296 counter->counts->scaled = -1;
297 perf_counts(counter->counts, cpu, thread)->ena = 0;
298 perf_counts(counter->counts, cpu, thread)->run = 0;
299 return -1;
300 }
301
302 perf_counts__set_loaded(counter->counts, cpu, thread, false);
303
304 if (STAT_RECORD) {
305 if (perf_evsel__write_stat_event(counter, cpu, thread, count)) {
306 pr_err("failed to write stat event\n");
307 return -1;
308 }
309 }
310
311 if (verbose > 1) {
312 fprintf(stat_config.output,
313 "%s: %d: %" PRIu64 " %" PRIu64 " %" PRIu64 "\n",
314 perf_evsel__name(counter),
315 cpu,
316 count->val, count->ena, count->run);
317 }
318 }
319 }
320
321 return 0;
322 }
323
324 static void read_counters(struct timespec *rs)
325 {
326 struct evsel *counter;
327 int ret;
328
329 evlist__for_each_entry(evsel_list, counter) {
330 ret = read_counter(counter, rs);
331 if (ret)
332 pr_debug("failed to read counter %s\n", counter->name);
333
334 if (ret == 0 && perf_stat_process_counter(&stat_config, counter))
335 pr_warning("failed to process counter %s\n", counter->name);
336 }
337 }
338
339 static void process_interval(void)
340 {
341 struct timespec ts, rs;
342
343 clock_gettime(CLOCK_MONOTONIC, &ts);
344 diff_timespec(&rs, &ts, &ref_time);
345
346 read_counters(&rs);
347
348 if (STAT_RECORD) {
349 if (WRITE_STAT_ROUND_EVENT(rs.tv_sec * NSEC_PER_SEC + rs.tv_nsec, INTERVAL))
350 pr_err("failed to write stat round event\n");
351 }
352
353 init_stats(&walltime_nsecs_stats);
354 update_stats(&walltime_nsecs_stats, stat_config.interval * 1000000);
355 print_counters(&rs, 0, NULL);
356 }
357
358 static void enable_counters(void)
359 {
360 if (stat_config.initial_delay)
361 usleep(stat_config.initial_delay * USEC_PER_MSEC);
362
363 /*
364 * We need to enable counters only if:
365 * - we don't have tracee (attaching to task or cpu)
366 * - we have initial delay configured
367 */
368 if (!target__none(&target) || stat_config.initial_delay)
369 evlist__enable(evsel_list);
370 }
371
372 static void disable_counters(void)
373 {
374 /*
375 * If we don't have tracee (attaching to task or cpu), counters may
376 * still be running. To get accurate group ratios, we must stop groups
377 * from counting before reading their constituent counters.
378 */
379 if (!target__none(&target))
380 evlist__disable(evsel_list);
381 }
382
383 static volatile int workload_exec_errno;
384
385 /*
386 * perf_evlist__prepare_workload will send a SIGUSR1
387 * if the fork fails, since we asked by setting its
388 * want_signal to true.
389 */
390 static void workload_exec_failed_signal(int signo __maybe_unused, siginfo_t *info,
391 void *ucontext __maybe_unused)
392 {
393 workload_exec_errno = info->si_value.sival_int;
394 }
395
396 static bool perf_evsel__should_store_id(struct evsel *counter)
397 {
398 return STAT_RECORD || counter->core.attr.read_format & PERF_FORMAT_ID;
399 }
400
401 static bool is_target_alive(struct target *_target,
402 struct perf_thread_map *threads)
403 {
404 struct stat st;
405 int i;
406
407 if (!target__has_task(_target))
408 return true;
409
410 for (i = 0; i < threads->nr; i++) {
411 char path[PATH_MAX];
412
413 scnprintf(path, PATH_MAX, "%s/%d", procfs__mountpoint(),
414 threads->map[i].pid);
415
416 if (!stat(path, &st))
417 return true;
418 }
419
420 return false;
421 }
422
423 static int __run_perf_stat(int argc, const char **argv, int run_idx)
424 {
425 int interval = stat_config.interval;
426 int times = stat_config.times;
427 int timeout = stat_config.timeout;
428 char msg[BUFSIZ];
429 unsigned long long t0, t1;
430 struct evsel *counter;
431 struct timespec ts;
432 size_t l;
433 int status = 0;
434 const bool forks = (argc > 0);
435 bool is_pipe = STAT_RECORD ? perf_stat.data.is_pipe : false;
436
437 if (interval) {
438 ts.tv_sec = interval / USEC_PER_MSEC;
439 ts.tv_nsec = (interval % USEC_PER_MSEC) * NSEC_PER_MSEC;
440 } else if (timeout) {
441 ts.tv_sec = timeout / USEC_PER_MSEC;
442 ts.tv_nsec = (timeout % USEC_PER_MSEC) * NSEC_PER_MSEC;
443 } else {
444 ts.tv_sec = 1;
445 ts.tv_nsec = 0;
446 }
447
448 if (forks) {
449 if (perf_evlist__prepare_workload(evsel_list, &target, argv, is_pipe,
450 workload_exec_failed_signal) < 0) {
451 perror("failed to prepare workload");
452 return -1;
453 }
454 child_pid = evsel_list->workload.pid;
455 }
456
457 if (group)
458 perf_evlist__set_leader(evsel_list);
459
460 evlist__for_each_entry(evsel_list, counter) {
461 try_again:
462 if (create_perf_stat_counter(counter, &stat_config, &target) < 0) {
463
464 /* Weak group failed. Reset the group. */
465 if ((errno == EINVAL || errno == EBADF) &&
466 counter->leader != counter &&
467 counter->weak_group) {
468 counter = perf_evlist__reset_weak_group(evsel_list, counter);
469 goto try_again;
470 }
471
472 /*
473 * PPC returns ENXIO for HW counters until 2.6.37
474 * (behavior changed with commit b0a873e).
475 */
476 if (errno == EINVAL || errno == ENOSYS ||
477 errno == ENOENT || errno == EOPNOTSUPP ||
478 errno == ENXIO) {
479 if (verbose > 0)
480 ui__warning("%s event is not supported by the kernel.\n",
481 perf_evsel__name(counter));
482 counter->supported = false;
483
484 if ((counter->leader != counter) ||
485 !(counter->leader->core.nr_members > 1))
486 continue;
487 } else if (perf_evsel__fallback(counter, errno, msg, sizeof(msg))) {
488 if (verbose > 0)
489 ui__warning("%s\n", msg);
490 goto try_again;
491 } else if (target__has_per_thread(&target) &&
492 evsel_list->core.threads &&
493 evsel_list->core.threads->err_thread != -1) {
494 /*
495 * For global --per-thread case, skip current
496 * error thread.
497 */
498 if (!thread_map__remove(evsel_list->core.threads,
499 evsel_list->core.threads->err_thread)) {
500 evsel_list->core.threads->err_thread = -1;
501 goto try_again;
502 }
503 }
504
505 perf_evsel__open_strerror(counter, &target,
506 errno, msg, sizeof(msg));
507 ui__error("%s\n", msg);
508
509 if (child_pid != -1)
510 kill(child_pid, SIGTERM);
511
512 return -1;
513 }
514 counter->supported = true;
515
516 l = strlen(counter->unit);
517 if (l > stat_config.unit_width)
518 stat_config.unit_width = l;
519
520 if (perf_evsel__should_store_id(counter) &&
521 perf_evsel__store_ids(counter, evsel_list))
522 return -1;
523 }
524
525 if (perf_evlist__apply_filters(evsel_list, &counter)) {
526 pr_err("failed to set filter \"%s\" on event %s with %d (%s)\n",
527 counter->filter, perf_evsel__name(counter), errno,
528 str_error_r(errno, msg, sizeof(msg)));
529 return -1;
530 }
531
532 if (STAT_RECORD) {
533 int err, fd = perf_data__fd(&perf_stat.data);
534
535 if (is_pipe) {
536 err = perf_header__write_pipe(perf_data__fd(&perf_stat.data));
537 } else {
538 err = perf_session__write_header(perf_stat.session, evsel_list,
539 fd, false);
540 }
541
542 if (err < 0)
543 return err;
544
545 err = perf_event__synthesize_stat_events(&stat_config, NULL, evsel_list,
546 process_synthesized_event, is_pipe);
547 if (err < 0)
548 return err;
549 }
550
551 /*
552 * Enable counters and exec the command:
553 */
554 t0 = rdclock();
555 clock_gettime(CLOCK_MONOTONIC, &ref_time);
556
557 if (forks) {
558 perf_evlist__start_workload(evsel_list);
559 enable_counters();
560
561 if (interval || timeout) {
562 while (!waitpid(child_pid, &status, WNOHANG)) {
563 nanosleep(&ts, NULL);
564 if (timeout)
565 break;
566 process_interval();
567 if (interval_count && !(--times))
568 break;
569 }
570 }
571 if (child_pid != -1)
572 wait4(child_pid, &status, 0, &stat_config.ru_data);
573
574 if (workload_exec_errno) {
575 const char *emsg = str_error_r(workload_exec_errno, msg, sizeof(msg));
576 pr_err("Workload failed: %s\n", emsg);
577 return -1;
578 }
579
580 if (WIFSIGNALED(status))
581 psignal(WTERMSIG(status), argv[0]);
582 } else {
583 enable_counters();
584 while (!done) {
585 nanosleep(&ts, NULL);
586 if (!is_target_alive(&target, evsel_list->core.threads))
587 break;
588 if (timeout)
589 break;
590 if (interval) {
591 process_interval();
592 if (interval_count && !(--times))
593 break;
594 }
595 }
596 }
597
598 disable_counters();
599
600 t1 = rdclock();
601
602 if (stat_config.walltime_run_table)
603 stat_config.walltime_run[run_idx] = t1 - t0;
604
605 update_stats(&walltime_nsecs_stats, t1 - t0);
606
607 /*
608 * Closing a group leader splits the group, and as we only disable
609 * group leaders, results in remaining events becoming enabled. To
610 * avoid arbitrary skew, we must read all counters before closing any
611 * group leaders.
612 */
613 read_counters(&(struct timespec) { .tv_nsec = t1-t0 });
614
615 /*
616 * We need to keep evsel_list alive, because it's processed
617 * later the evsel_list will be closed after.
618 */
619 if (!STAT_RECORD)
620 evlist__close(evsel_list);
621
622 return WEXITSTATUS(status);
623 }
624
625 static int run_perf_stat(int argc, const char **argv, int run_idx)
626 {
627 int ret;
628
629 if (pre_cmd) {
630 ret = system(pre_cmd);
631 if (ret)
632 return ret;
633 }
634
635 if (sync_run)
636 sync();
637
638 ret = __run_perf_stat(argc, argv, run_idx);
639 if (ret)
640 return ret;
641
642 if (post_cmd) {
643 ret = system(post_cmd);
644 if (ret)
645 return ret;
646 }
647
648 return ret;
649 }
650
651 static void print_counters(struct timespec *ts, int argc, const char **argv)
652 {
653 /* Do not print anything if we record to the pipe. */
654 if (STAT_RECORD && perf_stat.data.is_pipe)
655 return;
656
657 perf_evlist__print_counters(evsel_list, &stat_config, &target,
658 ts, argc, argv);
659 }
660
661 static volatile int signr = -1;
662
663 static void skip_signal(int signo)
664 {
665 if ((child_pid == -1) || stat_config.interval)
666 done = 1;
667
668 signr = signo;
669 /*
670 * render child_pid harmless
671 * won't send SIGTERM to a random
672 * process in case of race condition
673 * and fast PID recycling
674 */
675 child_pid = -1;
676 }
677
678 static void sig_atexit(void)
679 {
680 sigset_t set, oset;
681
682 /*
683 * avoid race condition with SIGCHLD handler
684 * in skip_signal() which is modifying child_pid
685 * goal is to avoid send SIGTERM to a random
686 * process
687 */
688 sigemptyset(&set);
689 sigaddset(&set, SIGCHLD);
690 sigprocmask(SIG_BLOCK, &set, &oset);
691
692 if (child_pid != -1)
693 kill(child_pid, SIGTERM);
694
695 sigprocmask(SIG_SETMASK, &oset, NULL);
696
697 if (signr == -1)
698 return;
699
700 signal(signr, SIG_DFL);
701 kill(getpid(), signr);
702 }
703
704 static int stat__set_big_num(const struct option *opt __maybe_unused,
705 const char *s __maybe_unused, int unset)
706 {
707 big_num_opt = unset ? 0 : 1;
708 return 0;
709 }
710
711 static int enable_metric_only(const struct option *opt __maybe_unused,
712 const char *s __maybe_unused, int unset)
713 {
714 force_metric_only = true;
715 stat_config.metric_only = !unset;
716 return 0;
717 }
718
719 static int parse_metric_groups(const struct option *opt,
720 const char *str,
721 int unset __maybe_unused)
722 {
723 return metricgroup__parse_groups(opt, str, &stat_config.metric_events);
724 }
725
726 static struct option stat_options[] = {
727 OPT_BOOLEAN('T', "transaction", &transaction_run,
728 "hardware transaction statistics"),
729 OPT_CALLBACK('e', "event", &evsel_list, "event",
730 "event selector. use 'perf list' to list available events",
731 parse_events_option),
732 OPT_CALLBACK(0, "filter", &evsel_list, "filter",
733 "event filter", parse_filter),
734 OPT_BOOLEAN('i', "no-inherit", &stat_config.no_inherit,
735 "child tasks do not inherit counters"),
736 OPT_STRING('p', "pid", &target.pid, "pid",
737 "stat events on existing process id"),
738 OPT_STRING('t', "tid", &target.tid, "tid",
739 "stat events on existing thread id"),
740 OPT_BOOLEAN('a', "all-cpus", &target.system_wide,
741 "system-wide collection from all CPUs"),
742 OPT_BOOLEAN('g', "group", &group,
743 "put the counters into a counter group"),
744 OPT_BOOLEAN(0, "scale", &stat_config.scale,
745 "Use --no-scale to disable counter scaling for multiplexing"),
746 OPT_INCR('v', "verbose", &verbose,
747 "be more verbose (show counter open errors, etc)"),
748 OPT_INTEGER('r', "repeat", &stat_config.run_count,
749 "repeat command and print average + stddev (max: 100, forever: 0)"),
750 OPT_BOOLEAN(0, "table", &stat_config.walltime_run_table,
751 "display details about each run (only with -r option)"),
752 OPT_BOOLEAN('n', "null", &stat_config.null_run,
753 "null run - dont start any counters"),
754 OPT_INCR('d', "detailed", &detailed_run,
755 "detailed run - start a lot of events"),
756 OPT_BOOLEAN('S', "sync", &sync_run,
757 "call sync() before starting a run"),
758 OPT_CALLBACK_NOOPT('B', "big-num", NULL, NULL,
759 "print large numbers with thousands\' separators",
760 stat__set_big_num),
761 OPT_STRING('C', "cpu", &target.cpu_list, "cpu",
762 "list of cpus to monitor in system-wide"),
763 OPT_SET_UINT('A', "no-aggr", &stat_config.aggr_mode,
764 "disable CPU count aggregation", AGGR_NONE),
765 OPT_BOOLEAN(0, "no-merge", &stat_config.no_merge, "Do not merge identical named events"),
766 OPT_STRING('x', "field-separator", &stat_config.csv_sep, "separator",
767 "print counts with custom separator"),
768 OPT_CALLBACK('G', "cgroup", &evsel_list, "name",
769 "monitor event in cgroup name only", parse_cgroups),
770 OPT_STRING('o', "output", &output_name, "file", "output file name"),
771 OPT_BOOLEAN(0, "append", &append_file, "append to the output file"),
772 OPT_INTEGER(0, "log-fd", &output_fd,
773 "log output to fd, instead of stderr"),
774 OPT_STRING(0, "pre", &pre_cmd, "command",
775 "command to run prior to the measured command"),
776 OPT_STRING(0, "post", &post_cmd, "command",
777 "command to run after to the measured command"),
778 OPT_UINTEGER('I', "interval-print", &stat_config.interval,
779 "print counts at regular interval in ms "
780 "(overhead is possible for values <= 100ms)"),
781 OPT_INTEGER(0, "interval-count", &stat_config.times,
782 "print counts for fixed number of times"),
783 OPT_BOOLEAN(0, "interval-clear", &stat_config.interval_clear,
784 "clear screen in between new interval"),
785 OPT_UINTEGER(0, "timeout", &stat_config.timeout,
786 "stop workload and print counts after a timeout period in ms (>= 10ms)"),
787 OPT_SET_UINT(0, "per-socket", &stat_config.aggr_mode,
788 "aggregate counts per processor socket", AGGR_SOCKET),
789 OPT_SET_UINT(0, "per-die", &stat_config.aggr_mode,
790 "aggregate counts per processor die", AGGR_DIE),
791 OPT_SET_UINT(0, "per-core", &stat_config.aggr_mode,
792 "aggregate counts per physical processor core", AGGR_CORE),
793 OPT_SET_UINT(0, "per-thread", &stat_config.aggr_mode,
794 "aggregate counts per thread", AGGR_THREAD),
795 OPT_SET_UINT(0, "per-node", &stat_config.aggr_mode,
796 "aggregate counts per numa node", AGGR_NODE),
797 OPT_UINTEGER('D', "delay", &stat_config.initial_delay,
798 "ms to wait before starting measurement after program start"),
799 OPT_CALLBACK_NOOPT(0, "metric-only", &stat_config.metric_only, NULL,
800 "Only print computed metrics. No raw values", enable_metric_only),
801 OPT_BOOLEAN(0, "topdown", &topdown_run,
802 "measure topdown level 1 statistics"),
803 OPT_BOOLEAN(0, "smi-cost", &smi_cost,
804 "measure SMI cost"),
805 OPT_CALLBACK('M', "metrics", &evsel_list, "metric/metric group list",
806 "monitor specified metrics or metric groups (separated by ,)",
807 parse_metric_groups),
808 OPT_BOOLEAN_FLAG(0, "all-kernel", &stat_config.all_kernel,
809 "Configure all used events to run in kernel space.",
810 PARSE_OPT_EXCLUSIVE),
811 OPT_BOOLEAN_FLAG(0, "all-user", &stat_config.all_user,
812 "Configure all used events to run in user space.",
813 PARSE_OPT_EXCLUSIVE),
814 OPT_END()
815 };
816
817 static int perf_stat__get_socket(struct perf_stat_config *config __maybe_unused,
818 struct perf_cpu_map *map, int cpu)
819 {
820 return cpu_map__get_socket(map, cpu, NULL);
821 }
822
823 static int perf_stat__get_die(struct perf_stat_config *config __maybe_unused,
824 struct perf_cpu_map *map, int cpu)
825 {
826 return cpu_map__get_die(map, cpu, NULL);
827 }
828
829 static int perf_stat__get_core(struct perf_stat_config *config __maybe_unused,
830 struct perf_cpu_map *map, int cpu)
831 {
832 return cpu_map__get_core(map, cpu, NULL);
833 }
834
835 static int perf_stat__get_node(struct perf_stat_config *config __maybe_unused,
836 struct perf_cpu_map *map, int cpu)
837 {
838 return cpu_map__get_node(map, cpu, NULL);
839 }
840
841 static int perf_stat__get_aggr(struct perf_stat_config *config,
842 aggr_get_id_t get_id, struct perf_cpu_map *map, int idx)
843 {
844 int cpu;
845
846 if (idx >= map->nr)
847 return -1;
848
849 cpu = map->map[idx];
850
851 if (config->cpus_aggr_map->map[cpu] == -1)
852 config->cpus_aggr_map->map[cpu] = get_id(config, map, idx);
853
854 return config->cpus_aggr_map->map[cpu];
855 }
856
857 static int perf_stat__get_socket_cached(struct perf_stat_config *config,
858 struct perf_cpu_map *map, int idx)
859 {
860 return perf_stat__get_aggr(config, perf_stat__get_socket, map, idx);
861 }
862
863 static int perf_stat__get_die_cached(struct perf_stat_config *config,
864 struct perf_cpu_map *map, int idx)
865 {
866 return perf_stat__get_aggr(config, perf_stat__get_die, map, idx);
867 }
868
869 static int perf_stat__get_core_cached(struct perf_stat_config *config,
870 struct perf_cpu_map *map, int idx)
871 {
872 return perf_stat__get_aggr(config, perf_stat__get_core, map, idx);
873 }
874
875 static int perf_stat__get_node_cached(struct perf_stat_config *config,
876 struct perf_cpu_map *map, int idx)
877 {
878 return perf_stat__get_aggr(config, perf_stat__get_node, map, idx);
879 }
880
881 static bool term_percore_set(void)
882 {
883 struct evsel *counter;
884
885 evlist__for_each_entry(evsel_list, counter) {
886 if (counter->percore)
887 return true;
888 }
889
890 return false;
891 }
892
893 static int perf_stat_init_aggr_mode(void)
894 {
895 int nr;
896
897 switch (stat_config.aggr_mode) {
898 case AGGR_SOCKET:
899 if (cpu_map__build_socket_map(evsel_list->core.cpus, &stat_config.aggr_map)) {
900 perror("cannot build socket map");
901 return -1;
902 }
903 stat_config.aggr_get_id = perf_stat__get_socket_cached;
904 break;
905 case AGGR_DIE:
906 if (cpu_map__build_die_map(evsel_list->core.cpus, &stat_config.aggr_map)) {
907 perror("cannot build die map");
908 return -1;
909 }
910 stat_config.aggr_get_id = perf_stat__get_die_cached;
911 break;
912 case AGGR_CORE:
913 if (cpu_map__build_core_map(evsel_list->core.cpus, &stat_config.aggr_map)) {
914 perror("cannot build core map");
915 return -1;
916 }
917 stat_config.aggr_get_id = perf_stat__get_core_cached;
918 break;
919 case AGGR_NODE:
920 if (cpu_map__build_node_map(evsel_list->core.cpus, &stat_config.aggr_map)) {
921 perror("cannot build core map");
922 return -1;
923 }
924 stat_config.aggr_get_id = perf_stat__get_node_cached;
925 break;
926 case AGGR_NONE:
927 if (term_percore_set()) {
928 if (cpu_map__build_core_map(evsel_list->core.cpus,
929 &stat_config.aggr_map)) {
930 perror("cannot build core map");
931 return -1;
932 }
933 stat_config.aggr_get_id = perf_stat__get_core_cached;
934 }
935 break;
936 case AGGR_GLOBAL:
937 case AGGR_THREAD:
938 case AGGR_UNSET:
939 default:
940 break;
941 }
942
943 /*
944 * The evsel_list->cpus is the base we operate on,
945 * taking the highest cpu number to be the size of
946 * the aggregation translate cpumap.
947 */
948 nr = perf_cpu_map__max(evsel_list->core.cpus);
949 stat_config.cpus_aggr_map = perf_cpu_map__empty_new(nr + 1);
950 return stat_config.cpus_aggr_map ? 0 : -ENOMEM;
951 }
952
953 static void perf_stat__exit_aggr_mode(void)
954 {
955 perf_cpu_map__put(stat_config.aggr_map);
956 perf_cpu_map__put(stat_config.cpus_aggr_map);
957 stat_config.aggr_map = NULL;
958 stat_config.cpus_aggr_map = NULL;
959 }
960
961 static inline int perf_env__get_cpu(struct perf_env *env, struct perf_cpu_map *map, int idx)
962 {
963 int cpu;
964
965 if (idx > map->nr)
966 return -1;
967
968 cpu = map->map[idx];
969
970 if (cpu >= env->nr_cpus_avail)
971 return -1;
972
973 return cpu;
974 }
975
976 static int perf_env__get_socket(struct perf_cpu_map *map, int idx, void *data)
977 {
978 struct perf_env *env = data;
979 int cpu = perf_env__get_cpu(env, map, idx);
980
981 return cpu == -1 ? -1 : env->cpu[cpu].socket_id;
982 }
983
984 static int perf_env__get_die(struct perf_cpu_map *map, int idx, void *data)
985 {
986 struct perf_env *env = data;
987 int die_id = -1, cpu = perf_env__get_cpu(env, map, idx);
988
989 if (cpu != -1) {
990 /*
991 * Encode socket in bit range 15:8
992 * die_id is relative to socket,
993 * we need a global id. So we combine
994 * socket + die id
995 */
996 if (WARN_ONCE(env->cpu[cpu].socket_id >> 8, "The socket id number is too big.\n"))
997 return -1;
998
999 if (WARN_ONCE(env->cpu[cpu].die_id >> 8, "The die id number is too big.\n"))
1000 return -1;
1001
1002 die_id = (env->cpu[cpu].socket_id << 8) | (env->cpu[cpu].die_id & 0xff);
1003 }
1004
1005 return die_id;
1006 }
1007
1008 static int perf_env__get_core(struct perf_cpu_map *map, int idx, void *data)
1009 {
1010 struct perf_env *env = data;
1011 int core = -1, cpu = perf_env__get_cpu(env, map, idx);
1012
1013 if (cpu != -1) {
1014 /*
1015 * Encode socket in bit range 31:24
1016 * encode die id in bit range 23:16
1017 * core_id is relative to socket and die,
1018 * we need a global id. So we combine
1019 * socket + die id + core id
1020 */
1021 if (WARN_ONCE(env->cpu[cpu].socket_id >> 8, "The socket id number is too big.\n"))
1022 return -1;
1023
1024 if (WARN_ONCE(env->cpu[cpu].die_id >> 8, "The die id number is too big.\n"))
1025 return -1;
1026
1027 if (WARN_ONCE(env->cpu[cpu].core_id >> 16, "The core id number is too big.\n"))
1028 return -1;
1029
1030 core = (env->cpu[cpu].socket_id << 24) |
1031 (env->cpu[cpu].die_id << 16) |
1032 (env->cpu[cpu].core_id & 0xffff);
1033 }
1034
1035 return core;
1036 }
1037
1038 static int perf_env__get_node(struct perf_cpu_map *map, int idx, void *data)
1039 {
1040 int cpu = perf_env__get_cpu(data, map, idx);
1041
1042 return perf_env__numa_node(data, cpu);
1043 }
1044
1045 static int perf_env__build_socket_map(struct perf_env *env, struct perf_cpu_map *cpus,
1046 struct perf_cpu_map **sockp)
1047 {
1048 return cpu_map__build_map(cpus, sockp, perf_env__get_socket, env);
1049 }
1050
1051 static int perf_env__build_die_map(struct perf_env *env, struct perf_cpu_map *cpus,
1052 struct perf_cpu_map **diep)
1053 {
1054 return cpu_map__build_map(cpus, diep, perf_env__get_die, env);
1055 }
1056
1057 static int perf_env__build_core_map(struct perf_env *env, struct perf_cpu_map *cpus,
1058 struct perf_cpu_map **corep)
1059 {
1060 return cpu_map__build_map(cpus, corep, perf_env__get_core, env);
1061 }
1062
1063 static int perf_env__build_node_map(struct perf_env *env, struct perf_cpu_map *cpus,
1064 struct perf_cpu_map **nodep)
1065 {
1066 return cpu_map__build_map(cpus, nodep, perf_env__get_node, env);
1067 }
1068
1069 static int perf_stat__get_socket_file(struct perf_stat_config *config __maybe_unused,
1070 struct perf_cpu_map *map, int idx)
1071 {
1072 return perf_env__get_socket(map, idx, &perf_stat.session->header.env);
1073 }
1074 static int perf_stat__get_die_file(struct perf_stat_config *config __maybe_unused,
1075 struct perf_cpu_map *map, int idx)
1076 {
1077 return perf_env__get_die(map, idx, &perf_stat.session->header.env);
1078 }
1079
1080 static int perf_stat__get_core_file(struct perf_stat_config *config __maybe_unused,
1081 struct perf_cpu_map *map, int idx)
1082 {
1083 return perf_env__get_core(map, idx, &perf_stat.session->header.env);
1084 }
1085
1086 static int perf_stat__get_node_file(struct perf_stat_config *config __maybe_unused,
1087 struct perf_cpu_map *map, int idx)
1088 {
1089 return perf_env__get_node(map, idx, &perf_stat.session->header.env);
1090 }
1091
1092 static int perf_stat_init_aggr_mode_file(struct perf_stat *st)
1093 {
1094 struct perf_env *env = &st->session->header.env;
1095
1096 switch (stat_config.aggr_mode) {
1097 case AGGR_SOCKET:
1098 if (perf_env__build_socket_map(env, evsel_list->core.cpus, &stat_config.aggr_map)) {
1099 perror("cannot build socket map");
1100 return -1;
1101 }
1102 stat_config.aggr_get_id = perf_stat__get_socket_file;
1103 break;
1104 case AGGR_DIE:
1105 if (perf_env__build_die_map(env, evsel_list->core.cpus, &stat_config.aggr_map)) {
1106 perror("cannot build die map");
1107 return -1;
1108 }
1109 stat_config.aggr_get_id = perf_stat__get_die_file;
1110 break;
1111 case AGGR_CORE:
1112 if (perf_env__build_core_map(env, evsel_list->core.cpus, &stat_config.aggr_map)) {
1113 perror("cannot build core map");
1114 return -1;
1115 }
1116 stat_config.aggr_get_id = perf_stat__get_core_file;
1117 break;
1118 case AGGR_NODE:
1119 if (perf_env__build_node_map(env, evsel_list->core.cpus, &stat_config.aggr_map)) {
1120 perror("cannot build core map");
1121 return -1;
1122 }
1123 stat_config.aggr_get_id = perf_stat__get_node_file;
1124 break;
1125 case AGGR_NONE:
1126 case AGGR_GLOBAL:
1127 case AGGR_THREAD:
1128 case AGGR_UNSET:
1129 default:
1130 break;
1131 }
1132
1133 return 0;
1134 }
1135
1136 static int topdown_filter_events(const char **attr, char **str, bool use_group)
1137 {
1138 int off = 0;
1139 int i;
1140 int len = 0;
1141 char *s;
1142
1143 for (i = 0; attr[i]; i++) {
1144 if (pmu_have_event("cpu", attr[i])) {
1145 len += strlen(attr[i]) + 1;
1146 attr[i - off] = attr[i];
1147 } else
1148 off++;
1149 }
1150 attr[i - off] = NULL;
1151
1152 *str = malloc(len + 1 + 2);
1153 if (!*str)
1154 return -1;
1155 s = *str;
1156 if (i - off == 0) {
1157 *s = 0;
1158 return 0;
1159 }
1160 if (use_group)
1161 *s++ = '{';
1162 for (i = 0; attr[i]; i++) {
1163 strcpy(s, attr[i]);
1164 s += strlen(s);
1165 *s++ = ',';
1166 }
1167 if (use_group) {
1168 s[-1] = '}';
1169 *s = 0;
1170 } else
1171 s[-1] = 0;
1172 return 0;
1173 }
1174
1175 __weak bool arch_topdown_check_group(bool *warn)
1176 {
1177 *warn = false;
1178 return false;
1179 }
1180
1181 __weak void arch_topdown_group_warn(void)
1182 {
1183 }
1184
1185 /*
1186 * Add default attributes, if there were no attributes specified or
1187 * if -d/--detailed, -d -d or -d -d -d is used:
1188 */
1189 static int add_default_attributes(void)
1190 {
1191 int err;
1192 struct perf_event_attr default_attrs0[] = {
1193
1194 { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_TASK_CLOCK },
1195 { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_CONTEXT_SWITCHES },
1196 { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_CPU_MIGRATIONS },
1197 { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_PAGE_FAULTS },
1198
1199 { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_CPU_CYCLES },
1200 };
1201 struct perf_event_attr frontend_attrs[] = {
1202 { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_STALLED_CYCLES_FRONTEND },
1203 };
1204 struct perf_event_attr backend_attrs[] = {
1205 { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_STALLED_CYCLES_BACKEND },
1206 };
1207 struct perf_event_attr default_attrs1[] = {
1208 { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_INSTRUCTIONS },
1209 { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_BRANCH_INSTRUCTIONS },
1210 { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_BRANCH_MISSES },
1211
1212 };
1213
1214 /*
1215 * Detailed stats (-d), covering the L1 and last level data caches:
1216 */
1217 struct perf_event_attr detailed_attrs[] = {
1218
1219 { .type = PERF_TYPE_HW_CACHE,
1220 .config =
1221 PERF_COUNT_HW_CACHE_L1D << 0 |
1222 (PERF_COUNT_HW_CACHE_OP_READ << 8) |
1223 (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) },
1224
1225 { .type = PERF_TYPE_HW_CACHE,
1226 .config =
1227 PERF_COUNT_HW_CACHE_L1D << 0 |
1228 (PERF_COUNT_HW_CACHE_OP_READ << 8) |
1229 (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) },
1230
1231 { .type = PERF_TYPE_HW_CACHE,
1232 .config =
1233 PERF_COUNT_HW_CACHE_LL << 0 |
1234 (PERF_COUNT_HW_CACHE_OP_READ << 8) |
1235 (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) },
1236
1237 { .type = PERF_TYPE_HW_CACHE,
1238 .config =
1239 PERF_COUNT_HW_CACHE_LL << 0 |
1240 (PERF_COUNT_HW_CACHE_OP_READ << 8) |
1241 (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) },
1242 };
1243
1244 /*
1245 * Very detailed stats (-d -d), covering the instruction cache and the TLB caches:
1246 */
1247 struct perf_event_attr very_detailed_attrs[] = {
1248
1249 { .type = PERF_TYPE_HW_CACHE,
1250 .config =
1251 PERF_COUNT_HW_CACHE_L1I << 0 |
1252 (PERF_COUNT_HW_CACHE_OP_READ << 8) |
1253 (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) },
1254
1255 { .type = PERF_TYPE_HW_CACHE,
1256 .config =
1257 PERF_COUNT_HW_CACHE_L1I << 0 |
1258 (PERF_COUNT_HW_CACHE_OP_READ << 8) |
1259 (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) },
1260
1261 { .type = PERF_TYPE_HW_CACHE,
1262 .config =
1263 PERF_COUNT_HW_CACHE_DTLB << 0 |
1264 (PERF_COUNT_HW_CACHE_OP_READ << 8) |
1265 (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) },
1266
1267 { .type = PERF_TYPE_HW_CACHE,
1268 .config =
1269 PERF_COUNT_HW_CACHE_DTLB << 0 |
1270 (PERF_COUNT_HW_CACHE_OP_READ << 8) |
1271 (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) },
1272
1273 { .type = PERF_TYPE_HW_CACHE,
1274 .config =
1275 PERF_COUNT_HW_CACHE_ITLB << 0 |
1276 (PERF_COUNT_HW_CACHE_OP_READ << 8) |
1277 (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) },
1278
1279 { .type = PERF_TYPE_HW_CACHE,
1280 .config =
1281 PERF_COUNT_HW_CACHE_ITLB << 0 |
1282 (PERF_COUNT_HW_CACHE_OP_READ << 8) |
1283 (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) },
1284
1285 };
1286
1287 /*
1288 * Very, very detailed stats (-d -d -d), adding prefetch events:
1289 */
1290 struct perf_event_attr very_very_detailed_attrs[] = {
1291
1292 { .type = PERF_TYPE_HW_CACHE,
1293 .config =
1294 PERF_COUNT_HW_CACHE_L1D << 0 |
1295 (PERF_COUNT_HW_CACHE_OP_PREFETCH << 8) |
1296 (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) },
1297
1298 { .type = PERF_TYPE_HW_CACHE,
1299 .config =
1300 PERF_COUNT_HW_CACHE_L1D << 0 |
1301 (PERF_COUNT_HW_CACHE_OP_PREFETCH << 8) |
1302 (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) },
1303 };
1304 struct parse_events_error errinfo;
1305
1306 /* Set attrs if no event is selected and !null_run: */
1307 if (stat_config.null_run)
1308 return 0;
1309
1310 bzero(&errinfo, sizeof(errinfo));
1311 if (transaction_run) {
1312 /* Handle -T as -M transaction. Once platform specific metrics
1313 * support has been added to the json files, all archictures
1314 * will use this approach. To determine transaction support
1315 * on an architecture test for such a metric name.
1316 */
1317 if (metricgroup__has_metric("transaction")) {
1318 struct option opt = { .value = &evsel_list };
1319
1320 return metricgroup__parse_groups(&opt, "transaction",
1321 &stat_config.metric_events);
1322 }
1323
1324 if (pmu_have_event("cpu", "cycles-ct") &&
1325 pmu_have_event("cpu", "el-start"))
1326 err = parse_events(evsel_list, transaction_attrs,
1327 &errinfo);
1328 else
1329 err = parse_events(evsel_list,
1330 transaction_limited_attrs,
1331 &errinfo);
1332 if (err) {
1333 fprintf(stderr, "Cannot set up transaction events\n");
1334 parse_events_print_error(&errinfo, transaction_attrs);
1335 return -1;
1336 }
1337 return 0;
1338 }
1339
1340 if (smi_cost) {
1341 int smi;
1342
1343 if (sysfs__read_int(FREEZE_ON_SMI_PATH, &smi) < 0) {
1344 fprintf(stderr, "freeze_on_smi is not supported.\n");
1345 return -1;
1346 }
1347
1348 if (!smi) {
1349 if (sysfs__write_int(FREEZE_ON_SMI_PATH, 1) < 0) {
1350 fprintf(stderr, "Failed to set freeze_on_smi.\n");
1351 return -1;
1352 }
1353 smi_reset = true;
1354 }
1355
1356 if (pmu_have_event("msr", "aperf") &&
1357 pmu_have_event("msr", "smi")) {
1358 if (!force_metric_only)
1359 stat_config.metric_only = true;
1360 err = parse_events(evsel_list, smi_cost_attrs, &errinfo);
1361 } else {
1362 fprintf(stderr, "To measure SMI cost, it needs "
1363 "msr/aperf/, msr/smi/ and cpu/cycles/ support\n");
1364 parse_events_print_error(&errinfo, smi_cost_attrs);
1365 return -1;
1366 }
1367 if (err) {
1368 parse_events_print_error(&errinfo, smi_cost_attrs);
1369 fprintf(stderr, "Cannot set up SMI cost events\n");
1370 return -1;
1371 }
1372 return 0;
1373 }
1374
1375 if (topdown_run) {
1376 char *str = NULL;
1377 bool warn = false;
1378
1379 if (stat_config.aggr_mode != AGGR_GLOBAL &&
1380 stat_config.aggr_mode != AGGR_CORE) {
1381 pr_err("top down event configuration requires --per-core mode\n");
1382 return -1;
1383 }
1384 stat_config.aggr_mode = AGGR_CORE;
1385 if (nr_cgroups || !target__has_cpu(&target)) {
1386 pr_err("top down event configuration requires system-wide mode (-a)\n");
1387 return -1;
1388 }
1389
1390 if (!force_metric_only)
1391 stat_config.metric_only = true;
1392 if (topdown_filter_events(topdown_attrs, &str,
1393 arch_topdown_check_group(&warn)) < 0) {
1394 pr_err("Out of memory\n");
1395 return -1;
1396 }
1397 if (topdown_attrs[0] && str) {
1398 if (warn)
1399 arch_topdown_group_warn();
1400 err = parse_events(evsel_list, str, &errinfo);
1401 if (err) {
1402 fprintf(stderr,
1403 "Cannot set up top down events %s: %d\n",
1404 str, err);
1405 parse_events_print_error(&errinfo, str);
1406 free(str);
1407 return -1;
1408 }
1409 } else {
1410 fprintf(stderr, "System does not support topdown\n");
1411 return -1;
1412 }
1413 free(str);
1414 }
1415
1416 if (!evsel_list->core.nr_entries) {
1417 if (target__has_cpu(&target))
1418 default_attrs0[0].config = PERF_COUNT_SW_CPU_CLOCK;
1419
1420 if (perf_evlist__add_default_attrs(evsel_list, default_attrs0) < 0)
1421 return -1;
1422 if (pmu_have_event("cpu", "stalled-cycles-frontend")) {
1423 if (perf_evlist__add_default_attrs(evsel_list,
1424 frontend_attrs) < 0)
1425 return -1;
1426 }
1427 if (pmu_have_event("cpu", "stalled-cycles-backend")) {
1428 if (perf_evlist__add_default_attrs(evsel_list,
1429 backend_attrs) < 0)
1430 return -1;
1431 }
1432 if (perf_evlist__add_default_attrs(evsel_list, default_attrs1) < 0)
1433 return -1;
1434 }
1435
1436 /* Detailed events get appended to the event list: */
1437
1438 if (detailed_run < 1)
1439 return 0;
1440
1441 /* Append detailed run extra attributes: */
1442 if (perf_evlist__add_default_attrs(evsel_list, detailed_attrs) < 0)
1443 return -1;
1444
1445 if (detailed_run < 2)
1446 return 0;
1447
1448 /* Append very detailed run extra attributes: */
1449 if (perf_evlist__add_default_attrs(evsel_list, very_detailed_attrs) < 0)
1450 return -1;
1451
1452 if (detailed_run < 3)
1453 return 0;
1454
1455 /* Append very, very detailed run extra attributes: */
1456 return perf_evlist__add_default_attrs(evsel_list, very_very_detailed_attrs);
1457 }
1458
1459 static const char * const stat_record_usage[] = {
1460 "perf stat record [<options>]",
1461 NULL,
1462 };
1463
1464 static void init_features(struct perf_session *session)
1465 {
1466 int feat;
1467
1468 for (feat = HEADER_FIRST_FEATURE; feat < HEADER_LAST_FEATURE; feat++)
1469 perf_header__set_feat(&session->header, feat);
1470
1471 perf_header__clear_feat(&session->header, HEADER_DIR_FORMAT);
1472 perf_header__clear_feat(&session->header, HEADER_BUILD_ID);
1473 perf_header__clear_feat(&session->header, HEADER_TRACING_DATA);
1474 perf_header__clear_feat(&session->header, HEADER_BRANCH_STACK);
1475 perf_header__clear_feat(&session->header, HEADER_AUXTRACE);
1476 }
1477
1478 static int __cmd_record(int argc, const char **argv)
1479 {
1480 struct perf_session *session;
1481 struct perf_data *data = &perf_stat.data;
1482
1483 argc = parse_options(argc, argv, stat_options, stat_record_usage,
1484 PARSE_OPT_STOP_AT_NON_OPTION);
1485
1486 if (output_name)
1487 data->path = output_name;
1488
1489 if (stat_config.run_count != 1 || forever) {
1490 pr_err("Cannot use -r option with perf stat record.\n");
1491 return -1;
1492 }
1493
1494 session = perf_session__new(data, false, NULL);
1495 if (IS_ERR(session)) {
1496 pr_err("Perf session creation failed\n");
1497 return PTR_ERR(session);
1498 }
1499
1500 init_features(session);
1501
1502 session->evlist = evsel_list;
1503 perf_stat.session = session;
1504 perf_stat.record = true;
1505 return argc;
1506 }
1507
1508 static int process_stat_round_event(struct perf_session *session,
1509 union perf_event *event)
1510 {
1511 struct perf_record_stat_round *stat_round = &event->stat_round;
1512 struct evsel *counter;
1513 struct timespec tsh, *ts = NULL;
1514 const char **argv = session->header.env.cmdline_argv;
1515 int argc = session->header.env.nr_cmdline;
1516
1517 evlist__for_each_entry(evsel_list, counter)
1518 perf_stat_process_counter(&stat_config, counter);
1519
1520 if (stat_round->type == PERF_STAT_ROUND_TYPE__FINAL)
1521 update_stats(&walltime_nsecs_stats, stat_round->time);
1522
1523 if (stat_config.interval && stat_round->time) {
1524 tsh.tv_sec = stat_round->time / NSEC_PER_SEC;
1525 tsh.tv_nsec = stat_round->time % NSEC_PER_SEC;
1526 ts = &tsh;
1527 }
1528
1529 print_counters(ts, argc, argv);
1530 return 0;
1531 }
1532
1533 static
1534 int process_stat_config_event(struct perf_session *session,
1535 union perf_event *event)
1536 {
1537 struct perf_tool *tool = session->tool;
1538 struct perf_stat *st = container_of(tool, struct perf_stat, tool);
1539
1540 perf_event__read_stat_config(&stat_config, &event->stat_config);
1541
1542 if (perf_cpu_map__empty(st->cpus)) {
1543 if (st->aggr_mode != AGGR_UNSET)
1544 pr_warning("warning: processing task data, aggregation mode not set\n");
1545 return 0;
1546 }
1547
1548 if (st->aggr_mode != AGGR_UNSET)
1549 stat_config.aggr_mode = st->aggr_mode;
1550
1551 if (perf_stat.data.is_pipe)
1552 perf_stat_init_aggr_mode();
1553 else
1554 perf_stat_init_aggr_mode_file(st);
1555
1556 return 0;
1557 }
1558
1559 static int set_maps(struct perf_stat *st)
1560 {
1561 if (!st->cpus || !st->threads)
1562 return 0;
1563
1564 if (WARN_ONCE(st->maps_allocated, "stats double allocation\n"))
1565 return -EINVAL;
1566
1567 perf_evlist__set_maps(&evsel_list->core, st->cpus, st->threads);
1568
1569 if (perf_evlist__alloc_stats(evsel_list, true))
1570 return -ENOMEM;
1571
1572 st->maps_allocated = true;
1573 return 0;
1574 }
1575
1576 static
1577 int process_thread_map_event(struct perf_session *session,
1578 union perf_event *event)
1579 {
1580 struct perf_tool *tool = session->tool;
1581 struct perf_stat *st = container_of(tool, struct perf_stat, tool);
1582
1583 if (st->threads) {
1584 pr_warning("Extra thread map event, ignoring.\n");
1585 return 0;
1586 }
1587
1588 st->threads = thread_map__new_event(&event->thread_map);
1589 if (!st->threads)
1590 return -ENOMEM;
1591
1592 return set_maps(st);
1593 }
1594
1595 static
1596 int process_cpu_map_event(struct perf_session *session,
1597 union perf_event *event)
1598 {
1599 struct perf_tool *tool = session->tool;
1600 struct perf_stat *st = container_of(tool, struct perf_stat, tool);
1601 struct perf_cpu_map *cpus;
1602
1603 if (st->cpus) {
1604 pr_warning("Extra cpu map event, ignoring.\n");
1605 return 0;
1606 }
1607
1608 cpus = cpu_map__new_data(&event->cpu_map.data);
1609 if (!cpus)
1610 return -ENOMEM;
1611
1612 st->cpus = cpus;
1613 return set_maps(st);
1614 }
1615
1616 static int runtime_stat_new(struct perf_stat_config *config, int nthreads)
1617 {
1618 int i;
1619
1620 config->stats = calloc(nthreads, sizeof(struct runtime_stat));
1621 if (!config->stats)
1622 return -1;
1623
1624 config->stats_num = nthreads;
1625
1626 for (i = 0; i < nthreads; i++)
1627 runtime_stat__init(&config->stats[i]);
1628
1629 return 0;
1630 }
1631
1632 static void runtime_stat_delete(struct perf_stat_config *config)
1633 {
1634 int i;
1635
1636 if (!config->stats)
1637 return;
1638
1639 for (i = 0; i < config->stats_num; i++)
1640 runtime_stat__exit(&config->stats[i]);
1641
1642 zfree(&config->stats);
1643 }
1644
1645 static const char * const stat_report_usage[] = {
1646 "perf stat report [<options>]",
1647 NULL,
1648 };
1649
1650 static struct perf_stat perf_stat = {
1651 .tool = {
1652 .attr = perf_event__process_attr,
1653 .event_update = perf_event__process_event_update,
1654 .thread_map = process_thread_map_event,
1655 .cpu_map = process_cpu_map_event,
1656 .stat_config = process_stat_config_event,
1657 .stat = perf_event__process_stat_event,
1658 .stat_round = process_stat_round_event,
1659 },
1660 .aggr_mode = AGGR_UNSET,
1661 };
1662
1663 static int __cmd_report(int argc, const char **argv)
1664 {
1665 struct perf_session *session;
1666 const struct option options[] = {
1667 OPT_STRING('i', "input", &input_name, "file", "input file name"),
1668 OPT_SET_UINT(0, "per-socket", &perf_stat.aggr_mode,
1669 "aggregate counts per processor socket", AGGR_SOCKET),
1670 OPT_SET_UINT(0, "per-die", &perf_stat.aggr_mode,
1671 "aggregate counts per processor die", AGGR_DIE),
1672 OPT_SET_UINT(0, "per-core", &perf_stat.aggr_mode,
1673 "aggregate counts per physical processor core", AGGR_CORE),
1674 OPT_SET_UINT(0, "per-node", &perf_stat.aggr_mode,
1675 "aggregate counts per numa node", AGGR_NODE),
1676 OPT_SET_UINT('A', "no-aggr", &perf_stat.aggr_mode,
1677 "disable CPU count aggregation", AGGR_NONE),
1678 OPT_END()
1679 };
1680 struct stat st;
1681 int ret;
1682
1683 argc = parse_options(argc, argv, options, stat_report_usage, 0);
1684
1685 if (!input_name || !strlen(input_name)) {
1686 if (!fstat(STDIN_FILENO, &st) && S_ISFIFO(st.st_mode))
1687 input_name = "-";
1688 else
1689 input_name = "perf.data";
1690 }
1691
1692 perf_stat.data.path = input_name;
1693 perf_stat.data.mode = PERF_DATA_MODE_READ;
1694
1695 session = perf_session__new(&perf_stat.data, false, &perf_stat.tool);
1696 if (IS_ERR(session))
1697 return PTR_ERR(session);
1698
1699 perf_stat.session = session;
1700 stat_config.output = stderr;
1701 evsel_list = session->evlist;
1702
1703 ret = perf_session__process_events(session);
1704 if (ret)
1705 return ret;
1706
1707 perf_session__delete(session);
1708 return 0;
1709 }
1710
1711 static void setup_system_wide(int forks)
1712 {
1713 /*
1714 * Make system wide (-a) the default target if
1715 * no target was specified and one of following
1716 * conditions is met:
1717 *
1718 * - there's no workload specified
1719 * - there is workload specified but all requested
1720 * events are system wide events
1721 */
1722 if (!target__none(&target))
1723 return;
1724
1725 if (!forks)
1726 target.system_wide = true;
1727 else {
1728 struct evsel *counter;
1729
1730 evlist__for_each_entry(evsel_list, counter) {
1731 if (!counter->core.system_wide)
1732 return;
1733 }
1734
1735 if (evsel_list->core.nr_entries)
1736 target.system_wide = true;
1737 }
1738 }
1739
1740 int cmd_stat(int argc, const char **argv)
1741 {
1742 const char * const stat_usage[] = {
1743 "perf stat [<options>] [<command>]",
1744 NULL
1745 };
1746 int status = -EINVAL, run_idx;
1747 const char *mode;
1748 FILE *output = stderr;
1749 unsigned int interval, timeout;
1750 const char * const stat_subcommands[] = { "record", "report" };
1751
1752 setlocale(LC_ALL, "");
1753
1754 evsel_list = evlist__new();
1755 if (evsel_list == NULL)
1756 return -ENOMEM;
1757
1758 parse_events__shrink_config_terms();
1759
1760 /* String-parsing callback-based options would segfault when negated */
1761 set_option_flag(stat_options, 'e', "event", PARSE_OPT_NONEG);
1762 set_option_flag(stat_options, 'M', "metrics", PARSE_OPT_NONEG);
1763 set_option_flag(stat_options, 'G', "cgroup", PARSE_OPT_NONEG);
1764
1765 argc = parse_options_subcommand(argc, argv, stat_options, stat_subcommands,
1766 (const char **) stat_usage,
1767 PARSE_OPT_STOP_AT_NON_OPTION);
1768 perf_stat__collect_metric_expr(evsel_list);
1769 perf_stat__init_shadow_stats();
1770
1771 if (stat_config.csv_sep) {
1772 stat_config.csv_output = true;
1773 if (!strcmp(stat_config.csv_sep, "\\t"))
1774 stat_config.csv_sep = "\t";
1775 } else
1776 stat_config.csv_sep = DEFAULT_SEPARATOR;
1777
1778 if (argc && !strncmp(argv[0], "rec", 3)) {
1779 argc = __cmd_record(argc, argv);
1780 if (argc < 0)
1781 return -1;
1782 } else if (argc && !strncmp(argv[0], "rep", 3))
1783 return __cmd_report(argc, argv);
1784
1785 interval = stat_config.interval;
1786 timeout = stat_config.timeout;
1787
1788 /*
1789 * For record command the -o is already taken care of.
1790 */
1791 if (!STAT_RECORD && output_name && strcmp(output_name, "-"))
1792 output = NULL;
1793
1794 if (output_name && output_fd) {
1795 fprintf(stderr, "cannot use both --output and --log-fd\n");
1796 parse_options_usage(stat_usage, stat_options, "o", 1);
1797 parse_options_usage(NULL, stat_options, "log-fd", 0);
1798 goto out;
1799 }
1800
1801 if (stat_config.metric_only && stat_config.aggr_mode == AGGR_THREAD) {
1802 fprintf(stderr, "--metric-only is not supported with --per-thread\n");
1803 goto out;
1804 }
1805
1806 if (stat_config.metric_only && stat_config.run_count > 1) {
1807 fprintf(stderr, "--metric-only is not supported with -r\n");
1808 goto out;
1809 }
1810
1811 if (stat_config.walltime_run_table && stat_config.run_count <= 1) {
1812 fprintf(stderr, "--table is only supported with -r\n");
1813 parse_options_usage(stat_usage, stat_options, "r", 1);
1814 parse_options_usage(NULL, stat_options, "table", 0);
1815 goto out;
1816 }
1817
1818 if (output_fd < 0) {
1819 fprintf(stderr, "argument to --log-fd must be a > 0\n");
1820 parse_options_usage(stat_usage, stat_options, "log-fd", 0);
1821 goto out;
1822 }
1823
1824 if (!output) {
1825 struct timespec tm;
1826 mode = append_file ? "a" : "w";
1827
1828 output = fopen(output_name, mode);
1829 if (!output) {
1830 perror("failed to create output file");
1831 return -1;
1832 }
1833 clock_gettime(CLOCK_REALTIME, &tm);
1834 fprintf(output, "# started on %s\n", ctime(&tm.tv_sec));
1835 } else if (output_fd > 0) {
1836 mode = append_file ? "a" : "w";
1837 output = fdopen(output_fd, mode);
1838 if (!output) {
1839 perror("Failed opening logfd");
1840 return -errno;
1841 }
1842 }
1843
1844 stat_config.output = output;
1845
1846 /*
1847 * let the spreadsheet do the pretty-printing
1848 */
1849 if (stat_config.csv_output) {
1850 /* User explicitly passed -B? */
1851 if (big_num_opt == 1) {
1852 fprintf(stderr, "-B option not supported with -x\n");
1853 parse_options_usage(stat_usage, stat_options, "B", 1);
1854 parse_options_usage(NULL, stat_options, "x", 1);
1855 goto out;
1856 } else /* Nope, so disable big number formatting */
1857 stat_config.big_num = false;
1858 } else if (big_num_opt == 0) /* User passed --no-big-num */
1859 stat_config.big_num = false;
1860
1861 setup_system_wide(argc);
1862
1863 /*
1864 * Display user/system times only for single
1865 * run and when there's specified tracee.
1866 */
1867 if ((stat_config.run_count == 1) && target__none(&target))
1868 stat_config.ru_display = true;
1869
1870 if (stat_config.run_count < 0) {
1871 pr_err("Run count must be a positive number\n");
1872 parse_options_usage(stat_usage, stat_options, "r", 1);
1873 goto out;
1874 } else if (stat_config.run_count == 0) {
1875 forever = true;
1876 stat_config.run_count = 1;
1877 }
1878
1879 if (stat_config.walltime_run_table) {
1880 stat_config.walltime_run = zalloc(stat_config.run_count * sizeof(stat_config.walltime_run[0]));
1881 if (!stat_config.walltime_run) {
1882 pr_err("failed to setup -r option");
1883 goto out;
1884 }
1885 }
1886
1887 if ((stat_config.aggr_mode == AGGR_THREAD) &&
1888 !target__has_task(&target)) {
1889 if (!target.system_wide || target.cpu_list) {
1890 fprintf(stderr, "The --per-thread option is only "
1891 "available when monitoring via -p -t -a "
1892 "options or only --per-thread.\n");
1893 parse_options_usage(NULL, stat_options, "p", 1);
1894 parse_options_usage(NULL, stat_options, "t", 1);
1895 goto out;
1896 }
1897 }
1898
1899 /*
1900 * no_aggr, cgroup are for system-wide only
1901 * --per-thread is aggregated per thread, we dont mix it with cpu mode
1902 */
1903 if (((stat_config.aggr_mode != AGGR_GLOBAL &&
1904 stat_config.aggr_mode != AGGR_THREAD) || nr_cgroups) &&
1905 !target__has_cpu(&target)) {
1906 fprintf(stderr, "both cgroup and no-aggregation "
1907 "modes only available in system-wide mode\n");
1908
1909 parse_options_usage(stat_usage, stat_options, "G", 1);
1910 parse_options_usage(NULL, stat_options, "A", 1);
1911 parse_options_usage(NULL, stat_options, "a", 1);
1912 goto out;
1913 }
1914
1915 if (add_default_attributes())
1916 goto out;
1917
1918 target__validate(&target);
1919
1920 if ((stat_config.aggr_mode == AGGR_THREAD) && (target.system_wide))
1921 target.per_thread = true;
1922
1923 if (perf_evlist__create_maps(evsel_list, &target) < 0) {
1924 if (target__has_task(&target)) {
1925 pr_err("Problems finding threads of monitor\n");
1926 parse_options_usage(stat_usage, stat_options, "p", 1);
1927 parse_options_usage(NULL, stat_options, "t", 1);
1928 } else if (target__has_cpu(&target)) {
1929 perror("failed to parse CPUs map");
1930 parse_options_usage(stat_usage, stat_options, "C", 1);
1931 parse_options_usage(NULL, stat_options, "a", 1);
1932 }
1933 goto out;
1934 }
1935
1936 /*
1937 * Initialize thread_map with comm names,
1938 * so we could print it out on output.
1939 */
1940 if (stat_config.aggr_mode == AGGR_THREAD) {
1941 thread_map__read_comms(evsel_list->core.threads);
1942 if (target.system_wide) {
1943 if (runtime_stat_new(&stat_config,
1944 perf_thread_map__nr(evsel_list->core.threads))) {
1945 goto out;
1946 }
1947 }
1948 }
1949
1950 if (stat_config.aggr_mode == AGGR_NODE)
1951 cpu__setup_cpunode_map();
1952
1953 if (stat_config.times && interval)
1954 interval_count = true;
1955 else if (stat_config.times && !interval) {
1956 pr_err("interval-count option should be used together with "
1957 "interval-print.\n");
1958 parse_options_usage(stat_usage, stat_options, "interval-count", 0);
1959 parse_options_usage(stat_usage, stat_options, "I", 1);
1960 goto out;
1961 }
1962
1963 if (timeout && timeout < 100) {
1964 if (timeout < 10) {
1965 pr_err("timeout must be >= 10ms.\n");
1966 parse_options_usage(stat_usage, stat_options, "timeout", 0);
1967 goto out;
1968 } else
1969 pr_warning("timeout < 100ms. "
1970 "The overhead percentage could be high in some cases. "
1971 "Please proceed with caution.\n");
1972 }
1973 if (timeout && interval) {
1974 pr_err("timeout option is not supported with interval-print.\n");
1975 parse_options_usage(stat_usage, stat_options, "timeout", 0);
1976 parse_options_usage(stat_usage, stat_options, "I", 1);
1977 goto out;
1978 }
1979
1980 if (perf_evlist__alloc_stats(evsel_list, interval))
1981 goto out;
1982
1983 if (perf_stat_init_aggr_mode())
1984 goto out;
1985
1986 /*
1987 * Set sample_type to PERF_SAMPLE_IDENTIFIER, which should be harmless
1988 * while avoiding that older tools show confusing messages.
1989 *
1990 * However for pipe sessions we need to keep it zero,
1991 * because script's perf_evsel__check_attr is triggered
1992 * by attr->sample_type != 0, and we can't run it on
1993 * stat sessions.
1994 */
1995 stat_config.identifier = !(STAT_RECORD && perf_stat.data.is_pipe);
1996
1997 /*
1998 * We dont want to block the signals - that would cause
1999 * child tasks to inherit that and Ctrl-C would not work.
2000 * What we want is for Ctrl-C to work in the exec()-ed
2001 * task, but being ignored by perf stat itself:
2002 */
2003 atexit(sig_atexit);
2004 if (!forever)
2005 signal(SIGINT, skip_signal);
2006 signal(SIGCHLD, skip_signal);
2007 signal(SIGALRM, skip_signal);
2008 signal(SIGABRT, skip_signal);
2009
2010 status = 0;
2011 for (run_idx = 0; forever || run_idx < stat_config.run_count; run_idx++) {
2012 if (stat_config.run_count != 1 && verbose > 0)
2013 fprintf(output, "[ perf stat: executing run #%d ... ]\n",
2014 run_idx + 1);
2015
2016 if (run_idx != 0)
2017 perf_evlist__reset_prev_raw_counts(evsel_list);
2018
2019 status = run_perf_stat(argc, argv, run_idx);
2020 if (forever && status != -1 && !interval) {
2021 print_counters(NULL, argc, argv);
2022 perf_stat__reset_stats();
2023 }
2024 }
2025
2026 if (!forever && status != -1 && !interval)
2027 print_counters(NULL, argc, argv);
2028
2029 if (STAT_RECORD) {
2030 /*
2031 * We synthesize the kernel mmap record just so that older tools
2032 * don't emit warnings about not being able to resolve symbols
2033 * due to /proc/sys/kernel/kptr_restrict settings and instear provide
2034 * a saner message about no samples being in the perf.data file.
2035 *
2036 * This also serves to suppress a warning about f_header.data.size == 0
2037 * in header.c at the moment 'perf stat record' gets introduced, which
2038 * is not really needed once we start adding the stat specific PERF_RECORD_
2039 * records, but the need to suppress the kptr_restrict messages in older
2040 * tools remain -acme
2041 */
2042 int fd = perf_data__fd(&perf_stat.data);
2043 int err = perf_event__synthesize_kernel_mmap((void *)&perf_stat,
2044 process_synthesized_event,
2045 &perf_stat.session->machines.host);
2046 if (err) {
2047 pr_warning("Couldn't synthesize the kernel mmap record, harmless, "
2048 "older tools may produce warnings about this file\n.");
2049 }
2050
2051 if (!interval) {
2052 if (WRITE_STAT_ROUND_EVENT(walltime_nsecs_stats.max, FINAL))
2053 pr_err("failed to write stat round event\n");
2054 }
2055
2056 if (!perf_stat.data.is_pipe) {
2057 perf_stat.session->header.data_size += perf_stat.bytes_written;
2058 perf_session__write_header(perf_stat.session, evsel_list, fd, true);
2059 }
2060
2061 evlist__close(evsel_list);
2062 perf_session__delete(perf_stat.session);
2063 }
2064
2065 perf_stat__exit_aggr_mode();
2066 perf_evlist__free_stats(evsel_list);
2067 out:
2068 zfree(&stat_config.walltime_run);
2069
2070 if (smi_cost && smi_reset)
2071 sysfs__write_int(FREEZE_ON_SMI_PATH, 0);
2072
2073 evlist__delete(evsel_list);
2074
2075 runtime_stat_delete(&stat_config);
2076
2077 return status;
2078 }
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