Commit | Line | Data |
---|---|---|
ddcacfa0 | 1 | /* |
bf9e1876 IM |
2 | * builtin-stat.c |
3 | * | |
4 | * Builtin stat command: Give a precise performance counters summary | |
5 | * overview about any workload, CPU or specific PID. | |
6 | * | |
7 | * Sample output: | |
ddcacfa0 | 8 | |
2cba3ffb | 9 | $ perf stat ./hackbench 10 |
ddcacfa0 | 10 | |
2cba3ffb | 11 | Time: 0.118 |
ddcacfa0 | 12 | |
2cba3ffb | 13 | Performance counter stats for './hackbench 10': |
ddcacfa0 | 14 | |
2cba3ffb IM |
15 | 1708.761321 task-clock # 11.037 CPUs utilized |
16 | 41,190 context-switches # 0.024 M/sec | |
17 | 6,735 CPU-migrations # 0.004 M/sec | |
18 | 17,318 page-faults # 0.010 M/sec | |
19 | 5,205,202,243 cycles # 3.046 GHz | |
20 | 3,856,436,920 stalled-cycles-frontend # 74.09% frontend cycles idle | |
21 | 1,600,790,871 stalled-cycles-backend # 30.75% backend cycles idle | |
22 | 2,603,501,247 instructions # 0.50 insns per cycle | |
23 | # 1.48 stalled cycles per insn | |
24 | 484,357,498 branches # 283.455 M/sec | |
25 | 6,388,934 branch-misses # 1.32% of all branches | |
26 | ||
27 | 0.154822978 seconds time elapsed | |
ddcacfa0 | 28 | |
5242519b | 29 | * |
2cba3ffb | 30 | * Copyright (C) 2008-2011, Red Hat Inc, Ingo Molnar <mingo@redhat.com> |
5242519b IM |
31 | * |
32 | * Improvements and fixes by: | |
33 | * | |
34 | * Arjan van de Ven <arjan@linux.intel.com> | |
35 | * Yanmin Zhang <yanmin.zhang@intel.com> | |
36 | * Wu Fengguang <fengguang.wu@intel.com> | |
37 | * Mike Galbraith <efault@gmx.de> | |
38 | * Paul Mackerras <paulus@samba.org> | |
6e750a8f | 39 | * Jaswinder Singh Rajput <jaswinder@kernel.org> |
5242519b IM |
40 | * |
41 | * Released under the GPL v2. (and only v2, not any later version) | |
ddcacfa0 IM |
42 | */ |
43 | ||
1a482f38 | 44 | #include "perf.h" |
16f762a2 | 45 | #include "builtin.h" |
f14d5707 | 46 | #include "util/cgroup.h" |
148be2c1 | 47 | #include "util/util.h" |
4b6ab94e | 48 | #include <subcmd/parse-options.h> |
5242519b | 49 | #include "util/parse-events.h" |
4cabc3d1 | 50 | #include "util/pmu.h" |
8f28827a | 51 | #include "util/event.h" |
361c99a6 | 52 | #include "util/evlist.h" |
69aad6f1 | 53 | #include "util/evsel.h" |
8f28827a | 54 | #include "util/debug.h" |
a5d243d0 | 55 | #include "util/color.h" |
0007ecea | 56 | #include "util/stat.h" |
60666c63 | 57 | #include "util/header.h" |
a12b51c4 | 58 | #include "util/cpumap.h" |
d6d901c2 | 59 | #include "util/thread.h" |
fd78260b | 60 | #include "util/thread_map.h" |
d809560b | 61 | #include "util/counts.h" |
4979d0c7 | 62 | #include "util/session.h" |
ddcacfa0 | 63 | |
1f16c575 | 64 | #include <stdlib.h> |
ddcacfa0 | 65 | #include <sys/prctl.h> |
5af52b51 | 66 | #include <locale.h> |
16c8a109 | 67 | |
d7470b6a | 68 | #define DEFAULT_SEPARATOR " " |
2cee77c4 DA |
69 | #define CNTR_NOT_SUPPORTED "<not supported>" |
70 | #define CNTR_NOT_COUNTED "<not counted>" | |
d7470b6a | 71 | |
d4f63a47 | 72 | static void print_counters(struct timespec *ts, int argc, const char **argv); |
13370a9b | 73 | |
4cabc3d1 | 74 | /* Default events used for perf stat -T */ |
a454742c JO |
75 | static const char *transaction_attrs = { |
76 | "task-clock," | |
4cabc3d1 AK |
77 | "{" |
78 | "instructions," | |
79 | "cycles," | |
80 | "cpu/cycles-t/," | |
81 | "cpu/tx-start/," | |
82 | "cpu/el-start/," | |
83 | "cpu/cycles-ct/" | |
84 | "}" | |
85 | }; | |
86 | ||
87 | /* More limited version when the CPU does not have all events. */ | |
a454742c JO |
88 | static const char * transaction_limited_attrs = { |
89 | "task-clock," | |
4cabc3d1 AK |
90 | "{" |
91 | "instructions," | |
92 | "cycles," | |
93 | "cpu/cycles-t/," | |
94 | "cpu/tx-start/" | |
95 | "}" | |
96 | }; | |
97 | ||
666e6d48 | 98 | static struct perf_evlist *evsel_list; |
361c99a6 | 99 | |
602ad878 | 100 | static struct target target = { |
77a6f014 NK |
101 | .uid = UINT_MAX, |
102 | }; | |
ddcacfa0 | 103 | |
1e5a2931 JO |
104 | typedef int (*aggr_get_id_t)(struct cpu_map *m, int cpu); |
105 | ||
3d632595 | 106 | static int run_count = 1; |
2e6cdf99 | 107 | static bool no_inherit = false; |
d07f0b12 | 108 | static volatile pid_t child_pid = -1; |
c0555642 | 109 | static bool null_run = false; |
2cba3ffb | 110 | static int detailed_run = 0; |
4cabc3d1 | 111 | static bool transaction_run; |
201e0b06 | 112 | static bool big_num = true; |
d7470b6a | 113 | static int big_num_opt = -1; |
d7470b6a SE |
114 | static const char *csv_sep = NULL; |
115 | static bool csv_output = false; | |
43bece79 | 116 | static bool group = false; |
1f16c575 PZ |
117 | static const char *pre_cmd = NULL; |
118 | static const char *post_cmd = NULL; | |
119 | static bool sync_run = false; | |
41191688 | 120 | static unsigned int initial_delay = 0; |
410136f5 | 121 | static unsigned int unit_width = 4; /* strlen("unit") */ |
a7e191c3 | 122 | static bool forever = false; |
13370a9b | 123 | static struct timespec ref_time; |
86ee6e18 | 124 | static struct cpu_map *aggr_map; |
1e5a2931 | 125 | static aggr_get_id_t aggr_get_id; |
e0547311 JO |
126 | static bool append_file; |
127 | static const char *output_name; | |
128 | static int output_fd; | |
5af52b51 | 129 | |
4979d0c7 JO |
130 | struct perf_stat { |
131 | bool record; | |
132 | struct perf_data_file file; | |
133 | struct perf_session *session; | |
134 | u64 bytes_written; | |
135 | }; | |
136 | ||
137 | static struct perf_stat perf_stat; | |
138 | #define STAT_RECORD perf_stat.record | |
139 | ||
60666c63 LW |
140 | static volatile int done = 0; |
141 | ||
421a50f3 JO |
142 | static struct perf_stat_config stat_config = { |
143 | .aggr_mode = AGGR_GLOBAL, | |
711a572e | 144 | .scale = true, |
421a50f3 JO |
145 | }; |
146 | ||
13370a9b SE |
147 | static inline void diff_timespec(struct timespec *r, struct timespec *a, |
148 | struct timespec *b) | |
149 | { | |
150 | r->tv_sec = a->tv_sec - b->tv_sec; | |
151 | if (a->tv_nsec < b->tv_nsec) { | |
152 | r->tv_nsec = a->tv_nsec + 1000000000L - b->tv_nsec; | |
153 | r->tv_sec--; | |
154 | } else { | |
155 | r->tv_nsec = a->tv_nsec - b->tv_nsec ; | |
156 | } | |
157 | } | |
158 | ||
254ecbc7 JO |
159 | static void perf_stat__reset_stats(void) |
160 | { | |
161 | perf_evlist__reset_stats(evsel_list); | |
f87027b9 | 162 | perf_stat__reset_shadow_stats(); |
1eda3b21 JO |
163 | } |
164 | ||
cac21425 | 165 | static int create_perf_stat_counter(struct perf_evsel *evsel) |
ddcacfa0 | 166 | { |
69aad6f1 | 167 | struct perf_event_attr *attr = &evsel->attr; |
727ab04e | 168 | |
711a572e | 169 | if (stat_config.scale) |
a21ca2ca IM |
170 | attr->read_format = PERF_FORMAT_TOTAL_TIME_ENABLED | |
171 | PERF_FORMAT_TOTAL_TIME_RUNNING; | |
ddcacfa0 | 172 | |
5d2cd909 ACM |
173 | attr->inherit = !no_inherit; |
174 | ||
6acd8e92 JO |
175 | /* |
176 | * Some events get initialized with sample_(period/type) set, | |
177 | * like tracepoints. Clear it up for counting. | |
178 | */ | |
179 | attr->sample_period = 0; | |
4979d0c7 JO |
180 | /* |
181 | * But set sample_type to PERF_SAMPLE_IDENTIFIER, which should be harmless | |
182 | * while avoiding that older tools show confusing messages. | |
183 | */ | |
184 | attr->sample_type = PERF_SAMPLE_IDENTIFIER; | |
6acd8e92 | 185 | |
67ccdecd JO |
186 | /* |
187 | * Disabling all counters initially, they will be enabled | |
188 | * either manually by us or by kernel via enable_on_exec | |
189 | * set later. | |
190 | */ | |
c8280cec | 191 | if (perf_evsel__is_group_leader(evsel)) { |
67ccdecd JO |
192 | attr->disabled = 1; |
193 | ||
c8280cec JO |
194 | /* |
195 | * In case of initial_delay we enable tracee | |
196 | * events manually. | |
197 | */ | |
198 | if (target__none(&target) && !initial_delay) | |
41191688 | 199 | attr->enable_on_exec = 1; |
ddcacfa0 | 200 | } |
084ab9f8 | 201 | |
c8280cec JO |
202 | if (target__has_cpu(&target)) |
203 | return perf_evsel__open_per_cpu(evsel, perf_evsel__cpus(evsel)); | |
204 | ||
594ac61a | 205 | return perf_evsel__open_per_thread(evsel, evsel_list->threads); |
ddcacfa0 IM |
206 | } |
207 | ||
c04f5e5d IM |
208 | /* |
209 | * Does the counter have nsecs as a unit? | |
210 | */ | |
daec78a0 | 211 | static inline int nsec_counter(struct perf_evsel *evsel) |
c04f5e5d | 212 | { |
daec78a0 ACM |
213 | if (perf_evsel__match(evsel, SOFTWARE, SW_CPU_CLOCK) || |
214 | perf_evsel__match(evsel, SOFTWARE, SW_TASK_CLOCK)) | |
c04f5e5d IM |
215 | return 1; |
216 | ||
217 | return 0; | |
218 | } | |
219 | ||
8b99b1a4 JO |
220 | static int process_synthesized_event(struct perf_tool *tool __maybe_unused, |
221 | union perf_event *event, | |
222 | struct perf_sample *sample __maybe_unused, | |
223 | struct machine *machine __maybe_unused) | |
4979d0c7 | 224 | { |
8b99b1a4 | 225 | if (perf_data_file__write(&perf_stat.file, event, event->header.size) < 0) { |
4979d0c7 JO |
226 | pr_err("failed to write perf data, error: %m\n"); |
227 | return -1; | |
228 | } | |
229 | ||
8b99b1a4 | 230 | perf_stat.bytes_written += event->header.size; |
4979d0c7 JO |
231 | return 0; |
232 | } | |
233 | ||
7aad0c32 JO |
234 | static int write_stat_round_event(u64 time, u64 type) |
235 | { | |
236 | return perf_event__synthesize_stat_round(NULL, time, type, | |
237 | process_synthesized_event, | |
238 | NULL); | |
239 | } | |
240 | ||
241 | #define WRITE_STAT_ROUND_EVENT(time, interval) \ | |
242 | write_stat_round_event(time, PERF_STAT_ROUND_TYPE__ ## interval) | |
243 | ||
5a6ea81b JO |
244 | #define SID(e, x, y) xyarray__entry(e->sample_id, x, y) |
245 | ||
246 | static int | |
247 | perf_evsel__write_stat_event(struct perf_evsel *counter, u32 cpu, u32 thread, | |
248 | struct perf_counts_values *count) | |
249 | { | |
250 | struct perf_sample_id *sid = SID(counter, cpu, thread); | |
251 | ||
252 | return perf_event__synthesize_stat(NULL, cpu, thread, sid->id, count, | |
253 | process_synthesized_event, NULL); | |
254 | } | |
255 | ||
f5b4a9c3 SE |
256 | /* |
257 | * Read out the results of a single counter: | |
258 | * do not aggregate counts across CPUs in system-wide mode | |
259 | */ | |
c52b12ed | 260 | static int read_counter(struct perf_evsel *counter) |
f5b4a9c3 | 261 | { |
9bf1a529 JO |
262 | int nthreads = thread_map__nr(evsel_list->threads); |
263 | int ncpus = perf_evsel__nr_cpus(counter); | |
264 | int cpu, thread; | |
f5b4a9c3 | 265 | |
3b4331d9 SP |
266 | if (!counter->supported) |
267 | return -ENOENT; | |
268 | ||
9bf1a529 JO |
269 | if (counter->system_wide) |
270 | nthreads = 1; | |
271 | ||
272 | for (thread = 0; thread < nthreads; thread++) { | |
273 | for (cpu = 0; cpu < ncpus; cpu++) { | |
3b3eb044 JO |
274 | struct perf_counts_values *count; |
275 | ||
276 | count = perf_counts(counter->counts, cpu, thread); | |
277 | if (perf_evsel__read(counter, cpu, thread, count)) | |
9bf1a529 | 278 | return -1; |
5a6ea81b JO |
279 | |
280 | if (STAT_RECORD) { | |
281 | if (perf_evsel__write_stat_event(counter, cpu, thread, count)) { | |
282 | pr_err("failed to write stat event\n"); | |
283 | return -1; | |
284 | } | |
285 | } | |
9bf1a529 | 286 | } |
f5b4a9c3 | 287 | } |
c52b12ed ACM |
288 | |
289 | return 0; | |
2996f5dd IM |
290 | } |
291 | ||
5fc472a6 | 292 | static void read_counters(bool close_counters) |
13370a9b | 293 | { |
13370a9b | 294 | struct perf_evsel *counter; |
13370a9b | 295 | |
106a94a0 | 296 | evlist__for_each(evsel_list, counter) { |
3b3eb044 | 297 | if (read_counter(counter)) |
245bad8e | 298 | pr_debug("failed to read counter %s\n", counter->name); |
3b3eb044 | 299 | |
f80010eb | 300 | if (perf_stat_process_counter(&stat_config, counter)) |
3b3eb044 | 301 | pr_warning("failed to process counter %s\n", counter->name); |
106a94a0 | 302 | |
5fc472a6 | 303 | if (close_counters) { |
106a94a0 JO |
304 | perf_evsel__close_fd(counter, perf_evsel__nr_cpus(counter), |
305 | thread_map__nr(evsel_list->threads)); | |
13370a9b SE |
306 | } |
307 | } | |
106a94a0 JO |
308 | } |
309 | ||
ba411a95 | 310 | static void process_interval(void) |
106a94a0 | 311 | { |
106a94a0 | 312 | struct timespec ts, rs; |
106a94a0 JO |
313 | |
314 | read_counters(false); | |
86ee6e18 | 315 | |
13370a9b SE |
316 | clock_gettime(CLOCK_MONOTONIC, &ts); |
317 | diff_timespec(&rs, &ts, &ref_time); | |
13370a9b | 318 | |
7aad0c32 JO |
319 | if (STAT_RECORD) { |
320 | if (WRITE_STAT_ROUND_EVENT(rs.tv_sec * NSECS_PER_SEC + rs.tv_nsec, INTERVAL)) | |
321 | pr_err("failed to write stat round event\n"); | |
322 | } | |
323 | ||
d4f63a47 | 324 | print_counters(&rs, 0, NULL); |
13370a9b SE |
325 | } |
326 | ||
67ccdecd | 327 | static void enable_counters(void) |
41191688 | 328 | { |
67ccdecd | 329 | if (initial_delay) |
41191688 | 330 | usleep(initial_delay * 1000); |
67ccdecd JO |
331 | |
332 | /* | |
333 | * We need to enable counters only if: | |
334 | * - we don't have tracee (attaching to task or cpu) | |
335 | * - we have initial delay configured | |
336 | */ | |
337 | if (!target__none(&target) || initial_delay) | |
ab46db0a | 338 | perf_evlist__enable(evsel_list); |
41191688 AK |
339 | } |
340 | ||
f33cbe72 | 341 | static volatile int workload_exec_errno; |
6af206fd ACM |
342 | |
343 | /* | |
344 | * perf_evlist__prepare_workload will send a SIGUSR1 | |
345 | * if the fork fails, since we asked by setting its | |
346 | * want_signal to true. | |
347 | */ | |
f33cbe72 ACM |
348 | static void workload_exec_failed_signal(int signo __maybe_unused, siginfo_t *info, |
349 | void *ucontext __maybe_unused) | |
6af206fd | 350 | { |
f33cbe72 | 351 | workload_exec_errno = info->si_value.sival_int; |
6af206fd ACM |
352 | } |
353 | ||
664c98d4 | 354 | static int perf_stat_synthesize_config(bool is_pipe) |
8b99b1a4 JO |
355 | { |
356 | int err; | |
357 | ||
664c98d4 JO |
358 | if (is_pipe) { |
359 | err = perf_event__synthesize_attrs(NULL, perf_stat.session, | |
360 | process_synthesized_event); | |
361 | if (err < 0) { | |
362 | pr_err("Couldn't synthesize attrs.\n"); | |
363 | return err; | |
364 | } | |
365 | } | |
366 | ||
8b99b1a4 JO |
367 | err = perf_event__synthesize_thread_map2(NULL, evsel_list->threads, |
368 | process_synthesized_event, | |
369 | NULL); | |
370 | if (err < 0) { | |
371 | pr_err("Couldn't synthesize thread map.\n"); | |
372 | return err; | |
373 | } | |
374 | ||
375 | err = perf_event__synthesize_cpu_map(NULL, evsel_list->cpus, | |
376 | process_synthesized_event, NULL); | |
377 | if (err < 0) { | |
378 | pr_err("Couldn't synthesize thread map.\n"); | |
379 | return err; | |
380 | } | |
381 | ||
382 | err = perf_event__synthesize_stat_config(NULL, &stat_config, | |
383 | process_synthesized_event, NULL); | |
384 | if (err < 0) { | |
385 | pr_err("Couldn't synthesize config.\n"); | |
386 | return err; | |
387 | } | |
388 | ||
389 | return 0; | |
390 | } | |
391 | ||
2af4646d JO |
392 | #define FD(e, x, y) (*(int *)xyarray__entry(e->fd, x, y)) |
393 | ||
394 | static int __store_counter_ids(struct perf_evsel *counter, | |
395 | struct cpu_map *cpus, | |
396 | struct thread_map *threads) | |
397 | { | |
398 | int cpu, thread; | |
399 | ||
400 | for (cpu = 0; cpu < cpus->nr; cpu++) { | |
401 | for (thread = 0; thread < threads->nr; thread++) { | |
402 | int fd = FD(counter, cpu, thread); | |
403 | ||
404 | if (perf_evlist__id_add_fd(evsel_list, counter, | |
405 | cpu, thread, fd) < 0) | |
406 | return -1; | |
407 | } | |
408 | } | |
409 | ||
410 | return 0; | |
411 | } | |
412 | ||
413 | static int store_counter_ids(struct perf_evsel *counter) | |
414 | { | |
415 | struct cpu_map *cpus = counter->cpus; | |
416 | struct thread_map *threads = counter->threads; | |
417 | ||
418 | if (perf_evsel__alloc_id(counter, cpus->nr, threads->nr)) | |
419 | return -ENOMEM; | |
420 | ||
421 | return __store_counter_ids(counter, cpus, threads); | |
422 | } | |
423 | ||
acf28922 | 424 | static int __run_perf_stat(int argc, const char **argv) |
42202dd5 | 425 | { |
ec0d3d1f | 426 | int interval = stat_config.interval; |
56e52e85 | 427 | char msg[512]; |
42202dd5 | 428 | unsigned long long t0, t1; |
cac21425 | 429 | struct perf_evsel *counter; |
13370a9b | 430 | struct timespec ts; |
410136f5 | 431 | size_t l; |
42202dd5 | 432 | int status = 0; |
6be2850e | 433 | const bool forks = (argc > 0); |
664c98d4 | 434 | bool is_pipe = STAT_RECORD ? perf_stat.file.is_pipe : false; |
42202dd5 | 435 | |
13370a9b SE |
436 | if (interval) { |
437 | ts.tv_sec = interval / 1000; | |
438 | ts.tv_nsec = (interval % 1000) * 1000000; | |
439 | } else { | |
440 | ts.tv_sec = 1; | |
441 | ts.tv_nsec = 0; | |
442 | } | |
443 | ||
60666c63 | 444 | if (forks) { |
664c98d4 | 445 | if (perf_evlist__prepare_workload(evsel_list, &target, argv, is_pipe, |
735f7e0b | 446 | workload_exec_failed_signal) < 0) { |
acf28922 NK |
447 | perror("failed to prepare workload"); |
448 | return -1; | |
60666c63 | 449 | } |
d20a47e7 | 450 | child_pid = evsel_list->workload.pid; |
051ae7f7 PM |
451 | } |
452 | ||
6a4bb04c | 453 | if (group) |
63dab225 | 454 | perf_evlist__set_leader(evsel_list); |
6a4bb04c | 455 | |
0050f7aa | 456 | evlist__for_each(evsel_list, counter) { |
cac21425 | 457 | if (create_perf_stat_counter(counter) < 0) { |
979987a5 DA |
458 | /* |
459 | * PPC returns ENXIO for HW counters until 2.6.37 | |
460 | * (behavior changed with commit b0a873e). | |
461 | */ | |
38f6ae1e | 462 | if (errno == EINVAL || errno == ENOSYS || |
979987a5 DA |
463 | errno == ENOENT || errno == EOPNOTSUPP || |
464 | errno == ENXIO) { | |
c63ca0c0 DA |
465 | if (verbose) |
466 | ui__warning("%s event is not supported by the kernel.\n", | |
7289f83c | 467 | perf_evsel__name(counter)); |
2cee77c4 | 468 | counter->supported = false; |
cb5ef600 KL |
469 | |
470 | if ((counter->leader != counter) || | |
471 | !(counter->leader->nr_members > 1)) | |
472 | continue; | |
c63ca0c0 | 473 | } |
ede70290 | 474 | |
56e52e85 ACM |
475 | perf_evsel__open_strerror(counter, &target, |
476 | errno, msg, sizeof(msg)); | |
477 | ui__error("%s\n", msg); | |
478 | ||
48290609 ACM |
479 | if (child_pid != -1) |
480 | kill(child_pid, SIGTERM); | |
fceda7fe | 481 | |
48290609 ACM |
482 | return -1; |
483 | } | |
2cee77c4 | 484 | counter->supported = true; |
410136f5 SE |
485 | |
486 | l = strlen(counter->unit); | |
487 | if (l > unit_width) | |
488 | unit_width = l; | |
2af4646d JO |
489 | |
490 | if (STAT_RECORD && store_counter_ids(counter)) | |
491 | return -1; | |
084ab9f8 | 492 | } |
42202dd5 | 493 | |
23d4aad4 ACM |
494 | if (perf_evlist__apply_filters(evsel_list, &counter)) { |
495 | error("failed to set filter \"%s\" on event %s with %d (%s)\n", | |
496 | counter->filter, perf_evsel__name(counter), errno, | |
759e612b | 497 | strerror_r(errno, msg, sizeof(msg))); |
cfd748ae FW |
498 | return -1; |
499 | } | |
500 | ||
4979d0c7 JO |
501 | if (STAT_RECORD) { |
502 | int err, fd = perf_data_file__fd(&perf_stat.file); | |
503 | ||
664c98d4 JO |
504 | if (is_pipe) { |
505 | err = perf_header__write_pipe(perf_data_file__fd(&perf_stat.file)); | |
506 | } else { | |
507 | err = perf_session__write_header(perf_stat.session, evsel_list, | |
508 | fd, false); | |
509 | } | |
510 | ||
4979d0c7 JO |
511 | if (err < 0) |
512 | return err; | |
8b99b1a4 | 513 | |
664c98d4 | 514 | err = perf_stat_synthesize_config(is_pipe); |
8b99b1a4 JO |
515 | if (err < 0) |
516 | return err; | |
4979d0c7 JO |
517 | } |
518 | ||
42202dd5 IM |
519 | /* |
520 | * Enable counters and exec the command: | |
521 | */ | |
522 | t0 = rdclock(); | |
13370a9b | 523 | clock_gettime(CLOCK_MONOTONIC, &ref_time); |
42202dd5 | 524 | |
60666c63 | 525 | if (forks) { |
acf28922 | 526 | perf_evlist__start_workload(evsel_list); |
67ccdecd | 527 | enable_counters(); |
acf28922 | 528 | |
13370a9b SE |
529 | if (interval) { |
530 | while (!waitpid(child_pid, &status, WNOHANG)) { | |
531 | nanosleep(&ts, NULL); | |
ba411a95 | 532 | process_interval(); |
13370a9b SE |
533 | } |
534 | } | |
60666c63 | 535 | wait(&status); |
6af206fd | 536 | |
f33cbe72 ACM |
537 | if (workload_exec_errno) { |
538 | const char *emsg = strerror_r(workload_exec_errno, msg, sizeof(msg)); | |
539 | pr_err("Workload failed: %s\n", emsg); | |
6af206fd | 540 | return -1; |
f33cbe72 | 541 | } |
6af206fd | 542 | |
33e49ea7 AK |
543 | if (WIFSIGNALED(status)) |
544 | psignal(WTERMSIG(status), argv[0]); | |
60666c63 | 545 | } else { |
67ccdecd | 546 | enable_counters(); |
13370a9b SE |
547 | while (!done) { |
548 | nanosleep(&ts, NULL); | |
549 | if (interval) | |
ba411a95 | 550 | process_interval(); |
13370a9b | 551 | } |
60666c63 | 552 | } |
42202dd5 | 553 | |
42202dd5 IM |
554 | t1 = rdclock(); |
555 | ||
9e9772c4 | 556 | update_stats(&walltime_nsecs_stats, t1 - t0); |
42202dd5 | 557 | |
106a94a0 | 558 | read_counters(true); |
c52b12ed | 559 | |
42202dd5 IM |
560 | return WEXITSTATUS(status); |
561 | } | |
562 | ||
41cde476 | 563 | static int run_perf_stat(int argc, const char **argv) |
1f16c575 PZ |
564 | { |
565 | int ret; | |
566 | ||
567 | if (pre_cmd) { | |
568 | ret = system(pre_cmd); | |
569 | if (ret) | |
570 | return ret; | |
571 | } | |
572 | ||
573 | if (sync_run) | |
574 | sync(); | |
575 | ||
576 | ret = __run_perf_stat(argc, argv); | |
577 | if (ret) | |
578 | return ret; | |
579 | ||
580 | if (post_cmd) { | |
581 | ret = system(post_cmd); | |
582 | if (ret) | |
583 | return ret; | |
584 | } | |
585 | ||
586 | return ret; | |
587 | } | |
588 | ||
d73515c0 AK |
589 | static void print_running(u64 run, u64 ena) |
590 | { | |
591 | if (csv_output) { | |
5821522e | 592 | fprintf(stat_config.output, "%s%" PRIu64 "%s%.2f", |
d73515c0 AK |
593 | csv_sep, |
594 | run, | |
595 | csv_sep, | |
596 | ena ? 100.0 * run / ena : 100.0); | |
597 | } else if (run != ena) { | |
5821522e | 598 | fprintf(stat_config.output, " (%.2f%%)", 100.0 * run / ena); |
d73515c0 AK |
599 | } |
600 | } | |
601 | ||
f99844cb IM |
602 | static void print_noise_pct(double total, double avg) |
603 | { | |
0007ecea | 604 | double pct = rel_stddev_stats(total, avg); |
f99844cb | 605 | |
3ae9a34d | 606 | if (csv_output) |
5821522e | 607 | fprintf(stat_config.output, "%s%.2f%%", csv_sep, pct); |
a1bca6cc | 608 | else if (pct) |
5821522e | 609 | fprintf(stat_config.output, " ( +-%6.2f%% )", pct); |
f99844cb IM |
610 | } |
611 | ||
69aad6f1 | 612 | static void print_noise(struct perf_evsel *evsel, double avg) |
42202dd5 | 613 | { |
581cc8a2 | 614 | struct perf_stat_evsel *ps; |
69aad6f1 | 615 | |
849abde9 PZ |
616 | if (run_count == 1) |
617 | return; | |
618 | ||
69aad6f1 | 619 | ps = evsel->priv; |
f99844cb | 620 | print_noise_pct(stddev_stats(&ps->res_stats[0]), avg); |
42202dd5 IM |
621 | } |
622 | ||
12c08a9f | 623 | static void aggr_printout(struct perf_evsel *evsel, int id, int nr) |
44175b6f | 624 | { |
421a50f3 | 625 | switch (stat_config.aggr_mode) { |
12c08a9f | 626 | case AGGR_CORE: |
5821522e | 627 | fprintf(stat_config.output, "S%d-C%*d%s%*d%s", |
12c08a9f SE |
628 | cpu_map__id_to_socket(id), |
629 | csv_output ? 0 : -8, | |
630 | cpu_map__id_to_cpu(id), | |
631 | csv_sep, | |
632 | csv_output ? 0 : 4, | |
633 | nr, | |
634 | csv_sep); | |
635 | break; | |
86ee6e18 | 636 | case AGGR_SOCKET: |
5821522e | 637 | fprintf(stat_config.output, "S%*d%s%*d%s", |
d7e7a451 | 638 | csv_output ? 0 : -5, |
12c08a9f | 639 | id, |
d7e7a451 SE |
640 | csv_sep, |
641 | csv_output ? 0 : 4, | |
642 | nr, | |
643 | csv_sep); | |
86ee6e18 SE |
644 | break; |
645 | case AGGR_NONE: | |
5821522e | 646 | fprintf(stat_config.output, "CPU%*d%s", |
d7470b6a | 647 | csv_output ? 0 : -4, |
12c08a9f | 648 | perf_evsel__cpus(evsel)->map[id], csv_sep); |
86ee6e18 | 649 | break; |
32b8af82 | 650 | case AGGR_THREAD: |
5821522e | 651 | fprintf(stat_config.output, "%*s-%*d%s", |
32b8af82 JO |
652 | csv_output ? 0 : 16, |
653 | thread_map__comm(evsel->threads, id), | |
654 | csv_output ? 0 : -8, | |
655 | thread_map__pid(evsel->threads, id), | |
656 | csv_sep); | |
657 | break; | |
86ee6e18 | 658 | case AGGR_GLOBAL: |
208df99e | 659 | case AGGR_UNSET: |
86ee6e18 SE |
660 | default: |
661 | break; | |
662 | } | |
663 | } | |
664 | ||
da88c7f7 | 665 | static void nsec_printout(int id, int nr, struct perf_evsel *evsel, double avg) |
86ee6e18 | 666 | { |
5821522e | 667 | FILE *output = stat_config.output; |
86ee6e18 | 668 | double msecs = avg / 1e6; |
410136f5 | 669 | const char *fmt_v, *fmt_n; |
4bbe5a61 | 670 | char name[25]; |
86ee6e18 | 671 | |
410136f5 SE |
672 | fmt_v = csv_output ? "%.6f%s" : "%18.6f%s"; |
673 | fmt_n = csv_output ? "%s" : "%-25s"; | |
674 | ||
da88c7f7 | 675 | aggr_printout(evsel, id, nr); |
d7470b6a | 676 | |
4bbe5a61 DA |
677 | scnprintf(name, sizeof(name), "%s%s", |
678 | perf_evsel__name(evsel), csv_output ? "" : " (msec)"); | |
410136f5 SE |
679 | |
680 | fprintf(output, fmt_v, msecs, csv_sep); | |
681 | ||
682 | if (csv_output) | |
683 | fprintf(output, "%s%s", evsel->unit, csv_sep); | |
684 | else | |
685 | fprintf(output, "%-*s%s", unit_width, evsel->unit, csv_sep); | |
686 | ||
687 | fprintf(output, fmt_n, name); | |
d7470b6a | 688 | |
023695d9 | 689 | if (evsel->cgrp) |
4aa9015f | 690 | fprintf(output, "%s%s", csv_sep, evsel->cgrp->name); |
44175b6f IM |
691 | } |
692 | ||
556b1fb7 JO |
693 | static void abs_printout(int id, int nr, struct perf_evsel *evsel, double avg) |
694 | { | |
5821522e | 695 | FILE *output = stat_config.output; |
556b1fb7 JO |
696 | double sc = evsel->scale; |
697 | const char *fmt; | |
556b1fb7 JO |
698 | |
699 | if (csv_output) { | |
700 | fmt = sc != 1.0 ? "%.2f%s" : "%.0f%s"; | |
701 | } else { | |
702 | if (big_num) | |
703 | fmt = sc != 1.0 ? "%'18.2f%s" : "%'18.0f%s"; | |
704 | else | |
705 | fmt = sc != 1.0 ? "%18.2f%s" : "%18.0f%s"; | |
706 | } | |
707 | ||
708 | aggr_printout(evsel, id, nr); | |
709 | ||
556b1fb7 JO |
710 | fprintf(output, fmt, avg, csv_sep); |
711 | ||
712 | if (evsel->unit) | |
713 | fprintf(output, "%-*s%s", | |
714 | csv_output ? 0 : unit_width, | |
715 | evsel->unit, csv_sep); | |
716 | ||
717 | fprintf(output, "%-*s", csv_output ? 0 : 25, perf_evsel__name(evsel)); | |
718 | ||
719 | if (evsel->cgrp) | |
720 | fprintf(output, "%s%s", csv_sep, evsel->cgrp->name); | |
eedfcb4b | 721 | } |
556b1fb7 | 722 | |
eedfcb4b AK |
723 | static void printout(int id, int nr, struct perf_evsel *counter, double uval) |
724 | { | |
725 | int cpu = cpu_map__id_to_cpu(id); | |
726 | ||
727 | if (stat_config.aggr_mode == AGGR_GLOBAL) | |
728 | cpu = 0; | |
729 | ||
730 | if (nsec_counter(counter)) | |
731 | nsec_printout(id, nr, counter, uval); | |
732 | else | |
733 | abs_printout(id, nr, counter, uval); | |
556b1fb7 | 734 | |
eedfcb4b AK |
735 | if (!csv_output && !stat_config.interval) |
736 | perf_stat__print_shadow_stats(stat_config.output, counter, | |
737 | uval, cpu, | |
738 | stat_config.aggr_mode); | |
556b1fb7 JO |
739 | } |
740 | ||
86ee6e18 | 741 | static void print_aggr(char *prefix) |
d7e7a451 | 742 | { |
5821522e | 743 | FILE *output = stat_config.output; |
d7e7a451 | 744 | struct perf_evsel *counter; |
601083cf | 745 | int cpu, s, s2, id, nr; |
410136f5 | 746 | double uval; |
d7e7a451 | 747 | u64 ena, run, val; |
d7e7a451 | 748 | |
86ee6e18 | 749 | if (!(aggr_map || aggr_get_id)) |
d7e7a451 SE |
750 | return; |
751 | ||
86ee6e18 SE |
752 | for (s = 0; s < aggr_map->nr; s++) { |
753 | id = aggr_map->map[s]; | |
0050f7aa | 754 | evlist__for_each(evsel_list, counter) { |
d7e7a451 SE |
755 | val = ena = run = 0; |
756 | nr = 0; | |
757 | for (cpu = 0; cpu < perf_evsel__nr_cpus(counter); cpu++) { | |
601083cf | 758 | s2 = aggr_get_id(perf_evsel__cpus(counter), cpu); |
86ee6e18 | 759 | if (s2 != id) |
d7e7a451 | 760 | continue; |
a6fa0038 JO |
761 | val += perf_counts(counter->counts, cpu, 0)->val; |
762 | ena += perf_counts(counter->counts, cpu, 0)->ena; | |
763 | run += perf_counts(counter->counts, cpu, 0)->run; | |
d7e7a451 SE |
764 | nr++; |
765 | } | |
766 | if (prefix) | |
767 | fprintf(output, "%s", prefix); | |
768 | ||
769 | if (run == 0 || ena == 0) { | |
582ec082 | 770 | aggr_printout(counter, id, nr); |
86ee6e18 | 771 | |
410136f5 | 772 | fprintf(output, "%*s%s", |
d7e7a451 SE |
773 | csv_output ? 0 : 18, |
774 | counter->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED, | |
410136f5 SE |
775 | csv_sep); |
776 | ||
777 | fprintf(output, "%-*s%s", | |
778 | csv_output ? 0 : unit_width, | |
779 | counter->unit, csv_sep); | |
780 | ||
781 | fprintf(output, "%*s", | |
782 | csv_output ? 0 : -25, | |
d7e7a451 | 783 | perf_evsel__name(counter)); |
86ee6e18 | 784 | |
d7e7a451 SE |
785 | if (counter->cgrp) |
786 | fprintf(output, "%s%s", | |
787 | csv_sep, counter->cgrp->name); | |
788 | ||
d73515c0 | 789 | print_running(run, ena); |
d7e7a451 SE |
790 | fputc('\n', output); |
791 | continue; | |
792 | } | |
410136f5 | 793 | uval = val * counter->scale; |
eedfcb4b | 794 | printout(id, nr, counter, uval); |
d73515c0 | 795 | if (!csv_output) |
d7e7a451 SE |
796 | print_noise(counter, 1.0); |
797 | ||
d73515c0 | 798 | print_running(run, ena); |
d7e7a451 SE |
799 | fputc('\n', output); |
800 | } | |
801 | } | |
802 | } | |
803 | ||
32b8af82 JO |
804 | static void print_aggr_thread(struct perf_evsel *counter, char *prefix) |
805 | { | |
5821522e | 806 | FILE *output = stat_config.output; |
32b8af82 JO |
807 | int nthreads = thread_map__nr(counter->threads); |
808 | int ncpus = cpu_map__nr(counter->cpus); | |
809 | int cpu, thread; | |
810 | double uval; | |
811 | ||
812 | for (thread = 0; thread < nthreads; thread++) { | |
813 | u64 ena = 0, run = 0, val = 0; | |
814 | ||
815 | for (cpu = 0; cpu < ncpus; cpu++) { | |
816 | val += perf_counts(counter->counts, cpu, thread)->val; | |
817 | ena += perf_counts(counter->counts, cpu, thread)->ena; | |
818 | run += perf_counts(counter->counts, cpu, thread)->run; | |
819 | } | |
820 | ||
821 | if (prefix) | |
822 | fprintf(output, "%s", prefix); | |
823 | ||
824 | uval = val * counter->scale; | |
eedfcb4b | 825 | printout(thread, 0, counter, uval); |
32b8af82 JO |
826 | |
827 | if (!csv_output) | |
828 | print_noise(counter, 1.0); | |
829 | ||
830 | print_running(run, ena); | |
831 | fputc('\n', output); | |
832 | } | |
833 | } | |
834 | ||
2996f5dd IM |
835 | /* |
836 | * Print out the results of a single counter: | |
f5b4a9c3 | 837 | * aggregated counts in system-wide mode |
2996f5dd | 838 | */ |
13370a9b | 839 | static void print_counter_aggr(struct perf_evsel *counter, char *prefix) |
2996f5dd | 840 | { |
5821522e | 841 | FILE *output = stat_config.output; |
581cc8a2 | 842 | struct perf_stat_evsel *ps = counter->priv; |
69aad6f1 | 843 | double avg = avg_stats(&ps->res_stats[0]); |
c52b12ed | 844 | int scaled = counter->counts->scaled; |
410136f5 | 845 | double uval; |
d73515c0 AK |
846 | double avg_enabled, avg_running; |
847 | ||
848 | avg_enabled = avg_stats(&ps->res_stats[1]); | |
849 | avg_running = avg_stats(&ps->res_stats[2]); | |
2996f5dd | 850 | |
13370a9b SE |
851 | if (prefix) |
852 | fprintf(output, "%s", prefix); | |
853 | ||
3b4331d9 | 854 | if (scaled == -1 || !counter->supported) { |
410136f5 | 855 | fprintf(output, "%*s%s", |
d7470b6a | 856 | csv_output ? 0 : 18, |
2cee77c4 | 857 | counter->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED, |
410136f5 SE |
858 | csv_sep); |
859 | fprintf(output, "%-*s%s", | |
860 | csv_output ? 0 : unit_width, | |
861 | counter->unit, csv_sep); | |
862 | fprintf(output, "%*s", | |
863 | csv_output ? 0 : -25, | |
7289f83c | 864 | perf_evsel__name(counter)); |
023695d9 SE |
865 | |
866 | if (counter->cgrp) | |
4aa9015f | 867 | fprintf(output, "%s%s", csv_sep, counter->cgrp->name); |
023695d9 | 868 | |
d73515c0 | 869 | print_running(avg_running, avg_enabled); |
4aa9015f | 870 | fputc('\n', output); |
2996f5dd IM |
871 | return; |
872 | } | |
c04f5e5d | 873 | |
410136f5 | 874 | uval = avg * counter->scale; |
eedfcb4b | 875 | printout(-1, 0, counter, uval); |
849abde9 | 876 | |
3ae9a34d ZH |
877 | print_noise(counter, avg); |
878 | ||
d73515c0 | 879 | print_running(avg_running, avg_enabled); |
4aa9015f | 880 | fprintf(output, "\n"); |
c04f5e5d IM |
881 | } |
882 | ||
f5b4a9c3 SE |
883 | /* |
884 | * Print out the results of a single counter: | |
885 | * does not use aggregated count in system-wide | |
886 | */ | |
13370a9b | 887 | static void print_counter(struct perf_evsel *counter, char *prefix) |
f5b4a9c3 | 888 | { |
5821522e | 889 | FILE *output = stat_config.output; |
f5b4a9c3 | 890 | u64 ena, run, val; |
410136f5 | 891 | double uval; |
f5b4a9c3 SE |
892 | int cpu; |
893 | ||
7ae92e74 | 894 | for (cpu = 0; cpu < perf_evsel__nr_cpus(counter); cpu++) { |
a6fa0038 JO |
895 | val = perf_counts(counter->counts, cpu, 0)->val; |
896 | ena = perf_counts(counter->counts, cpu, 0)->ena; | |
897 | run = perf_counts(counter->counts, cpu, 0)->run; | |
13370a9b SE |
898 | |
899 | if (prefix) | |
900 | fprintf(output, "%s", prefix); | |
901 | ||
f5b4a9c3 | 902 | if (run == 0 || ena == 0) { |
410136f5 | 903 | fprintf(output, "CPU%*d%s%*s%s", |
d7470b6a | 904 | csv_output ? 0 : -4, |
7ae92e74 | 905 | perf_evsel__cpus(counter)->map[cpu], csv_sep, |
d7470b6a | 906 | csv_output ? 0 : 18, |
2cee77c4 | 907 | counter->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED, |
410136f5 SE |
908 | csv_sep); |
909 | ||
910 | fprintf(output, "%-*s%s", | |
911 | csv_output ? 0 : unit_width, | |
912 | counter->unit, csv_sep); | |
913 | ||
914 | fprintf(output, "%*s", | |
915 | csv_output ? 0 : -25, | |
916 | perf_evsel__name(counter)); | |
f5b4a9c3 | 917 | |
023695d9 | 918 | if (counter->cgrp) |
4aa9015f SE |
919 | fprintf(output, "%s%s", |
920 | csv_sep, counter->cgrp->name); | |
023695d9 | 921 | |
d73515c0 | 922 | print_running(run, ena); |
4aa9015f | 923 | fputc('\n', output); |
f5b4a9c3 SE |
924 | continue; |
925 | } | |
926 | ||
410136f5 | 927 | uval = val * counter->scale; |
eedfcb4b | 928 | printout(cpu, 0, counter, uval); |
d73515c0 | 929 | if (!csv_output) |
d7470b6a | 930 | print_noise(counter, 1.0); |
d73515c0 | 931 | print_running(run, ena); |
f5b4a9c3 | 932 | |
4aa9015f | 933 | fputc('\n', output); |
f5b4a9c3 SE |
934 | } |
935 | } | |
936 | ||
d4f63a47 JO |
937 | static void print_interval(char *prefix, struct timespec *ts) |
938 | { | |
5821522e | 939 | FILE *output = stat_config.output; |
d4f63a47 JO |
940 | static int num_print_interval; |
941 | ||
942 | sprintf(prefix, "%6lu.%09lu%s", ts->tv_sec, ts->tv_nsec, csv_sep); | |
943 | ||
944 | if (num_print_interval == 0 && !csv_output) { | |
421a50f3 | 945 | switch (stat_config.aggr_mode) { |
d4f63a47 JO |
946 | case AGGR_SOCKET: |
947 | fprintf(output, "# time socket cpus counts %*s events\n", unit_width, "unit"); | |
948 | break; | |
949 | case AGGR_CORE: | |
950 | fprintf(output, "# time core cpus counts %*s events\n", unit_width, "unit"); | |
951 | break; | |
952 | case AGGR_NONE: | |
953 | fprintf(output, "# time CPU counts %*s events\n", unit_width, "unit"); | |
954 | break; | |
32b8af82 JO |
955 | case AGGR_THREAD: |
956 | fprintf(output, "# time comm-pid counts %*s events\n", unit_width, "unit"); | |
957 | break; | |
d4f63a47 JO |
958 | case AGGR_GLOBAL: |
959 | default: | |
960 | fprintf(output, "# time counts %*s events\n", unit_width, "unit"); | |
208df99e JO |
961 | case AGGR_UNSET: |
962 | break; | |
d4f63a47 JO |
963 | } |
964 | } | |
965 | ||
966 | if (++num_print_interval == 25) | |
967 | num_print_interval = 0; | |
968 | } | |
969 | ||
970 | static void print_header(int argc, const char **argv) | |
42202dd5 | 971 | { |
5821522e | 972 | FILE *output = stat_config.output; |
69aad6f1 | 973 | int i; |
42202dd5 | 974 | |
ddcacfa0 IM |
975 | fflush(stdout); |
976 | ||
d7470b6a | 977 | if (!csv_output) { |
4aa9015f SE |
978 | fprintf(output, "\n"); |
979 | fprintf(output, " Performance counter stats for "); | |
62d3b617 DA |
980 | if (target.system_wide) |
981 | fprintf(output, "\'system wide"); | |
982 | else if (target.cpu_list) | |
983 | fprintf(output, "\'CPU(s) %s", target.cpu_list); | |
602ad878 | 984 | else if (!target__has_task(&target)) { |
4aa9015f | 985 | fprintf(output, "\'%s", argv[0]); |
d7470b6a | 986 | for (i = 1; i < argc; i++) |
4aa9015f | 987 | fprintf(output, " %s", argv[i]); |
20f946b4 NK |
988 | } else if (target.pid) |
989 | fprintf(output, "process id \'%s", target.pid); | |
d7470b6a | 990 | else |
20f946b4 | 991 | fprintf(output, "thread id \'%s", target.tid); |
44db76c8 | 992 | |
4aa9015f | 993 | fprintf(output, "\'"); |
d7470b6a | 994 | if (run_count > 1) |
4aa9015f SE |
995 | fprintf(output, " (%d runs)", run_count); |
996 | fprintf(output, ":\n\n"); | |
d7470b6a | 997 | } |
d4f63a47 JO |
998 | } |
999 | ||
1000 | static void print_footer(void) | |
1001 | { | |
5821522e JO |
1002 | FILE *output = stat_config.output; |
1003 | ||
d4f63a47 JO |
1004 | if (!null_run) |
1005 | fprintf(output, "\n"); | |
1006 | fprintf(output, " %17.9f seconds time elapsed", | |
1007 | avg_stats(&walltime_nsecs_stats)/1e9); | |
1008 | if (run_count > 1) { | |
1009 | fprintf(output, " "); | |
1010 | print_noise_pct(stddev_stats(&walltime_nsecs_stats), | |
1011 | avg_stats(&walltime_nsecs_stats)); | |
1012 | } | |
1013 | fprintf(output, "\n\n"); | |
1014 | } | |
1015 | ||
1016 | static void print_counters(struct timespec *ts, int argc, const char **argv) | |
1017 | { | |
ec0d3d1f | 1018 | int interval = stat_config.interval; |
d4f63a47 JO |
1019 | struct perf_evsel *counter; |
1020 | char buf[64], *prefix = NULL; | |
1021 | ||
664c98d4 JO |
1022 | /* Do not print anything if we record to the pipe. */ |
1023 | if (STAT_RECORD && perf_stat.file.is_pipe) | |
1024 | return; | |
1025 | ||
d4f63a47 JO |
1026 | if (interval) |
1027 | print_interval(prefix = buf, ts); | |
1028 | else | |
1029 | print_header(argc, argv); | |
2996f5dd | 1030 | |
421a50f3 | 1031 | switch (stat_config.aggr_mode) { |
12c08a9f | 1032 | case AGGR_CORE: |
86ee6e18 | 1033 | case AGGR_SOCKET: |
d4f63a47 | 1034 | print_aggr(prefix); |
86ee6e18 | 1035 | break; |
32b8af82 JO |
1036 | case AGGR_THREAD: |
1037 | evlist__for_each(evsel_list, counter) | |
1038 | print_aggr_thread(counter, prefix); | |
1039 | break; | |
86ee6e18 | 1040 | case AGGR_GLOBAL: |
0050f7aa | 1041 | evlist__for_each(evsel_list, counter) |
d4f63a47 | 1042 | print_counter_aggr(counter, prefix); |
86ee6e18 SE |
1043 | break; |
1044 | case AGGR_NONE: | |
0050f7aa | 1045 | evlist__for_each(evsel_list, counter) |
d4f63a47 | 1046 | print_counter(counter, prefix); |
86ee6e18 | 1047 | break; |
208df99e | 1048 | case AGGR_UNSET: |
86ee6e18 SE |
1049 | default: |
1050 | break; | |
f5b4a9c3 | 1051 | } |
ddcacfa0 | 1052 | |
d4f63a47 JO |
1053 | if (!interval && !csv_output) |
1054 | print_footer(); | |
1055 | ||
5821522e | 1056 | fflush(stat_config.output); |
ddcacfa0 IM |
1057 | } |
1058 | ||
f7b7c26e PZ |
1059 | static volatile int signr = -1; |
1060 | ||
5242519b | 1061 | static void skip_signal(int signo) |
ddcacfa0 | 1062 | { |
ec0d3d1f | 1063 | if ((child_pid == -1) || stat_config.interval) |
60666c63 LW |
1064 | done = 1; |
1065 | ||
f7b7c26e | 1066 | signr = signo; |
d07f0b12 SE |
1067 | /* |
1068 | * render child_pid harmless | |
1069 | * won't send SIGTERM to a random | |
1070 | * process in case of race condition | |
1071 | * and fast PID recycling | |
1072 | */ | |
1073 | child_pid = -1; | |
f7b7c26e PZ |
1074 | } |
1075 | ||
1076 | static void sig_atexit(void) | |
1077 | { | |
d07f0b12 SE |
1078 | sigset_t set, oset; |
1079 | ||
1080 | /* | |
1081 | * avoid race condition with SIGCHLD handler | |
1082 | * in skip_signal() which is modifying child_pid | |
1083 | * goal is to avoid send SIGTERM to a random | |
1084 | * process | |
1085 | */ | |
1086 | sigemptyset(&set); | |
1087 | sigaddset(&set, SIGCHLD); | |
1088 | sigprocmask(SIG_BLOCK, &set, &oset); | |
1089 | ||
933da83a CW |
1090 | if (child_pid != -1) |
1091 | kill(child_pid, SIGTERM); | |
1092 | ||
d07f0b12 SE |
1093 | sigprocmask(SIG_SETMASK, &oset, NULL); |
1094 | ||
f7b7c26e PZ |
1095 | if (signr == -1) |
1096 | return; | |
1097 | ||
1098 | signal(signr, SIG_DFL); | |
1099 | kill(getpid(), signr); | |
5242519b IM |
1100 | } |
1101 | ||
1d037ca1 IT |
1102 | static int stat__set_big_num(const struct option *opt __maybe_unused, |
1103 | const char *s __maybe_unused, int unset) | |
d7470b6a SE |
1104 | { |
1105 | big_num_opt = unset ? 0 : 1; | |
1106 | return 0; | |
1107 | } | |
1108 | ||
e0547311 JO |
1109 | static const struct option stat_options[] = { |
1110 | OPT_BOOLEAN('T', "transaction", &transaction_run, | |
1111 | "hardware transaction statistics"), | |
1112 | OPT_CALLBACK('e', "event", &evsel_list, "event", | |
1113 | "event selector. use 'perf list' to list available events", | |
1114 | parse_events_option), | |
1115 | OPT_CALLBACK(0, "filter", &evsel_list, "filter", | |
1116 | "event filter", parse_filter), | |
1117 | OPT_BOOLEAN('i', "no-inherit", &no_inherit, | |
1118 | "child tasks do not inherit counters"), | |
1119 | OPT_STRING('p', "pid", &target.pid, "pid", | |
1120 | "stat events on existing process id"), | |
1121 | OPT_STRING('t', "tid", &target.tid, "tid", | |
1122 | "stat events on existing thread id"), | |
1123 | OPT_BOOLEAN('a', "all-cpus", &target.system_wide, | |
1124 | "system-wide collection from all CPUs"), | |
1125 | OPT_BOOLEAN('g', "group", &group, | |
1126 | "put the counters into a counter group"), | |
1127 | OPT_BOOLEAN('c', "scale", &stat_config.scale, "scale/normalize counters"), | |
1128 | OPT_INCR('v', "verbose", &verbose, | |
1129 | "be more verbose (show counter open errors, etc)"), | |
1130 | OPT_INTEGER('r', "repeat", &run_count, | |
1131 | "repeat command and print average + stddev (max: 100, forever: 0)"), | |
1132 | OPT_BOOLEAN('n', "null", &null_run, | |
1133 | "null run - dont start any counters"), | |
1134 | OPT_INCR('d', "detailed", &detailed_run, | |
1135 | "detailed run - start a lot of events"), | |
1136 | OPT_BOOLEAN('S', "sync", &sync_run, | |
1137 | "call sync() before starting a run"), | |
1138 | OPT_CALLBACK_NOOPT('B', "big-num", NULL, NULL, | |
1139 | "print large numbers with thousands\' separators", | |
1140 | stat__set_big_num), | |
1141 | OPT_STRING('C', "cpu", &target.cpu_list, "cpu", | |
1142 | "list of cpus to monitor in system-wide"), | |
1143 | OPT_SET_UINT('A', "no-aggr", &stat_config.aggr_mode, | |
1144 | "disable CPU count aggregation", AGGR_NONE), | |
1145 | OPT_STRING('x', "field-separator", &csv_sep, "separator", | |
1146 | "print counts with custom separator"), | |
1147 | OPT_CALLBACK('G', "cgroup", &evsel_list, "name", | |
1148 | "monitor event in cgroup name only", parse_cgroups), | |
1149 | OPT_STRING('o', "output", &output_name, "file", "output file name"), | |
1150 | OPT_BOOLEAN(0, "append", &append_file, "append to the output file"), | |
1151 | OPT_INTEGER(0, "log-fd", &output_fd, | |
1152 | "log output to fd, instead of stderr"), | |
1153 | OPT_STRING(0, "pre", &pre_cmd, "command", | |
1154 | "command to run prior to the measured command"), | |
1155 | OPT_STRING(0, "post", &post_cmd, "command", | |
1156 | "command to run after to the measured command"), | |
1157 | OPT_UINTEGER('I', "interval-print", &stat_config.interval, | |
1158 | "print counts at regular interval in ms (>= 10)"), | |
1159 | OPT_SET_UINT(0, "per-socket", &stat_config.aggr_mode, | |
1160 | "aggregate counts per processor socket", AGGR_SOCKET), | |
1161 | OPT_SET_UINT(0, "per-core", &stat_config.aggr_mode, | |
1162 | "aggregate counts per physical processor core", AGGR_CORE), | |
1163 | OPT_SET_UINT(0, "per-thread", &stat_config.aggr_mode, | |
1164 | "aggregate counts per thread", AGGR_THREAD), | |
1165 | OPT_UINTEGER('D', "delay", &initial_delay, | |
1166 | "ms to wait before starting measurement after program start"), | |
1167 | OPT_END() | |
1168 | }; | |
1169 | ||
1fe7a300 JO |
1170 | static int perf_stat__get_socket(struct cpu_map *map, int cpu) |
1171 | { | |
1172 | return cpu_map__get_socket(map, cpu, NULL); | |
1173 | } | |
1174 | ||
1175 | static int perf_stat__get_core(struct cpu_map *map, int cpu) | |
1176 | { | |
1177 | return cpu_map__get_core(map, cpu, NULL); | |
1178 | } | |
1179 | ||
1e5a2931 JO |
1180 | static int cpu_map__get_max(struct cpu_map *map) |
1181 | { | |
1182 | int i, max = -1; | |
1183 | ||
1184 | for (i = 0; i < map->nr; i++) { | |
1185 | if (map->map[i] > max) | |
1186 | max = map->map[i]; | |
1187 | } | |
1188 | ||
1189 | return max; | |
1190 | } | |
1191 | ||
1192 | static struct cpu_map *cpus_aggr_map; | |
1193 | ||
1194 | static int perf_stat__get_aggr(aggr_get_id_t get_id, struct cpu_map *map, int idx) | |
1195 | { | |
1196 | int cpu; | |
1197 | ||
1198 | if (idx >= map->nr) | |
1199 | return -1; | |
1200 | ||
1201 | cpu = map->map[idx]; | |
1202 | ||
1203 | if (cpus_aggr_map->map[cpu] == -1) | |
1204 | cpus_aggr_map->map[cpu] = get_id(map, idx); | |
1205 | ||
1206 | return cpus_aggr_map->map[cpu]; | |
1207 | } | |
1208 | ||
1209 | static int perf_stat__get_socket_cached(struct cpu_map *map, int idx) | |
1210 | { | |
1211 | return perf_stat__get_aggr(perf_stat__get_socket, map, idx); | |
1212 | } | |
1213 | ||
1214 | static int perf_stat__get_core_cached(struct cpu_map *map, int idx) | |
1215 | { | |
1216 | return perf_stat__get_aggr(perf_stat__get_core, map, idx); | |
1217 | } | |
1218 | ||
86ee6e18 SE |
1219 | static int perf_stat_init_aggr_mode(void) |
1220 | { | |
1e5a2931 JO |
1221 | int nr; |
1222 | ||
421a50f3 | 1223 | switch (stat_config.aggr_mode) { |
86ee6e18 SE |
1224 | case AGGR_SOCKET: |
1225 | if (cpu_map__build_socket_map(evsel_list->cpus, &aggr_map)) { | |
1226 | perror("cannot build socket map"); | |
1227 | return -1; | |
1228 | } | |
1e5a2931 | 1229 | aggr_get_id = perf_stat__get_socket_cached; |
86ee6e18 | 1230 | break; |
12c08a9f SE |
1231 | case AGGR_CORE: |
1232 | if (cpu_map__build_core_map(evsel_list->cpus, &aggr_map)) { | |
1233 | perror("cannot build core map"); | |
1234 | return -1; | |
1235 | } | |
1e5a2931 | 1236 | aggr_get_id = perf_stat__get_core_cached; |
12c08a9f | 1237 | break; |
86ee6e18 SE |
1238 | case AGGR_NONE: |
1239 | case AGGR_GLOBAL: | |
32b8af82 | 1240 | case AGGR_THREAD: |
208df99e | 1241 | case AGGR_UNSET: |
86ee6e18 SE |
1242 | default: |
1243 | break; | |
1244 | } | |
1e5a2931 JO |
1245 | |
1246 | /* | |
1247 | * The evsel_list->cpus is the base we operate on, | |
1248 | * taking the highest cpu number to be the size of | |
1249 | * the aggregation translate cpumap. | |
1250 | */ | |
1251 | nr = cpu_map__get_max(evsel_list->cpus); | |
1252 | cpus_aggr_map = cpu_map__empty_new(nr + 1); | |
1253 | return cpus_aggr_map ? 0 : -ENOMEM; | |
86ee6e18 SE |
1254 | } |
1255 | ||
544c2ae7 MH |
1256 | static void perf_stat__exit_aggr_mode(void) |
1257 | { | |
1258 | cpu_map__put(aggr_map); | |
1259 | cpu_map__put(cpus_aggr_map); | |
1260 | aggr_map = NULL; | |
1261 | cpus_aggr_map = NULL; | |
1262 | } | |
1263 | ||
2cba3ffb IM |
1264 | /* |
1265 | * Add default attributes, if there were no attributes specified or | |
1266 | * if -d/--detailed, -d -d or -d -d -d is used: | |
1267 | */ | |
1268 | static int add_default_attributes(void) | |
1269 | { | |
b070a547 ACM |
1270 | struct perf_event_attr default_attrs[] = { |
1271 | ||
1272 | { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_TASK_CLOCK }, | |
1273 | { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_CONTEXT_SWITCHES }, | |
1274 | { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_CPU_MIGRATIONS }, | |
1275 | { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_PAGE_FAULTS }, | |
1276 | ||
1277 | { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_CPU_CYCLES }, | |
1278 | { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_STALLED_CYCLES_FRONTEND }, | |
1279 | { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_STALLED_CYCLES_BACKEND }, | |
1280 | { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_INSTRUCTIONS }, | |
1281 | { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_BRANCH_INSTRUCTIONS }, | |
1282 | { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_BRANCH_MISSES }, | |
1283 | ||
1284 | }; | |
1285 | ||
1286 | /* | |
1287 | * Detailed stats (-d), covering the L1 and last level data caches: | |
1288 | */ | |
1289 | struct perf_event_attr detailed_attrs[] = { | |
1290 | ||
1291 | { .type = PERF_TYPE_HW_CACHE, | |
1292 | .config = | |
1293 | PERF_COUNT_HW_CACHE_L1D << 0 | | |
1294 | (PERF_COUNT_HW_CACHE_OP_READ << 8) | | |
1295 | (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, | |
1296 | ||
1297 | { .type = PERF_TYPE_HW_CACHE, | |
1298 | .config = | |
1299 | PERF_COUNT_HW_CACHE_L1D << 0 | | |
1300 | (PERF_COUNT_HW_CACHE_OP_READ << 8) | | |
1301 | (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, | |
1302 | ||
1303 | { .type = PERF_TYPE_HW_CACHE, | |
1304 | .config = | |
1305 | PERF_COUNT_HW_CACHE_LL << 0 | | |
1306 | (PERF_COUNT_HW_CACHE_OP_READ << 8) | | |
1307 | (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, | |
1308 | ||
1309 | { .type = PERF_TYPE_HW_CACHE, | |
1310 | .config = | |
1311 | PERF_COUNT_HW_CACHE_LL << 0 | | |
1312 | (PERF_COUNT_HW_CACHE_OP_READ << 8) | | |
1313 | (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, | |
1314 | }; | |
1315 | ||
1316 | /* | |
1317 | * Very detailed stats (-d -d), covering the instruction cache and the TLB caches: | |
1318 | */ | |
1319 | struct perf_event_attr very_detailed_attrs[] = { | |
1320 | ||
1321 | { .type = PERF_TYPE_HW_CACHE, | |
1322 | .config = | |
1323 | PERF_COUNT_HW_CACHE_L1I << 0 | | |
1324 | (PERF_COUNT_HW_CACHE_OP_READ << 8) | | |
1325 | (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, | |
1326 | ||
1327 | { .type = PERF_TYPE_HW_CACHE, | |
1328 | .config = | |
1329 | PERF_COUNT_HW_CACHE_L1I << 0 | | |
1330 | (PERF_COUNT_HW_CACHE_OP_READ << 8) | | |
1331 | (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, | |
1332 | ||
1333 | { .type = PERF_TYPE_HW_CACHE, | |
1334 | .config = | |
1335 | PERF_COUNT_HW_CACHE_DTLB << 0 | | |
1336 | (PERF_COUNT_HW_CACHE_OP_READ << 8) | | |
1337 | (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, | |
1338 | ||
1339 | { .type = PERF_TYPE_HW_CACHE, | |
1340 | .config = | |
1341 | PERF_COUNT_HW_CACHE_DTLB << 0 | | |
1342 | (PERF_COUNT_HW_CACHE_OP_READ << 8) | | |
1343 | (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, | |
1344 | ||
1345 | { .type = PERF_TYPE_HW_CACHE, | |
1346 | .config = | |
1347 | PERF_COUNT_HW_CACHE_ITLB << 0 | | |
1348 | (PERF_COUNT_HW_CACHE_OP_READ << 8) | | |
1349 | (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, | |
1350 | ||
1351 | { .type = PERF_TYPE_HW_CACHE, | |
1352 | .config = | |
1353 | PERF_COUNT_HW_CACHE_ITLB << 0 | | |
1354 | (PERF_COUNT_HW_CACHE_OP_READ << 8) | | |
1355 | (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, | |
1356 | ||
1357 | }; | |
1358 | ||
1359 | /* | |
1360 | * Very, very detailed stats (-d -d -d), adding prefetch events: | |
1361 | */ | |
1362 | struct perf_event_attr very_very_detailed_attrs[] = { | |
1363 | ||
1364 | { .type = PERF_TYPE_HW_CACHE, | |
1365 | .config = | |
1366 | PERF_COUNT_HW_CACHE_L1D << 0 | | |
1367 | (PERF_COUNT_HW_CACHE_OP_PREFETCH << 8) | | |
1368 | (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, | |
1369 | ||
1370 | { .type = PERF_TYPE_HW_CACHE, | |
1371 | .config = | |
1372 | PERF_COUNT_HW_CACHE_L1D << 0 | | |
1373 | (PERF_COUNT_HW_CACHE_OP_PREFETCH << 8) | | |
1374 | (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, | |
1375 | }; | |
1376 | ||
2cba3ffb IM |
1377 | /* Set attrs if no event is selected and !null_run: */ |
1378 | if (null_run) | |
1379 | return 0; | |
1380 | ||
4cabc3d1 AK |
1381 | if (transaction_run) { |
1382 | int err; | |
1383 | if (pmu_have_event("cpu", "cycles-ct") && | |
1384 | pmu_have_event("cpu", "el-start")) | |
a454742c | 1385 | err = parse_events(evsel_list, transaction_attrs, NULL); |
4cabc3d1 | 1386 | else |
a454742c JO |
1387 | err = parse_events(evsel_list, transaction_limited_attrs, NULL); |
1388 | if (err) { | |
4cabc3d1 AK |
1389 | fprintf(stderr, "Cannot set up transaction events\n"); |
1390 | return -1; | |
1391 | } | |
1392 | return 0; | |
1393 | } | |
1394 | ||
2cba3ffb | 1395 | if (!evsel_list->nr_entries) { |
79695e1b | 1396 | if (perf_evlist__add_default_attrs(evsel_list, default_attrs) < 0) |
50d08e47 | 1397 | return -1; |
2cba3ffb IM |
1398 | } |
1399 | ||
1400 | /* Detailed events get appended to the event list: */ | |
1401 | ||
1402 | if (detailed_run < 1) | |
1403 | return 0; | |
1404 | ||
1405 | /* Append detailed run extra attributes: */ | |
79695e1b | 1406 | if (perf_evlist__add_default_attrs(evsel_list, detailed_attrs) < 0) |
50d08e47 | 1407 | return -1; |
2cba3ffb IM |
1408 | |
1409 | if (detailed_run < 2) | |
1410 | return 0; | |
1411 | ||
1412 | /* Append very detailed run extra attributes: */ | |
79695e1b | 1413 | if (perf_evlist__add_default_attrs(evsel_list, very_detailed_attrs) < 0) |
50d08e47 | 1414 | return -1; |
2cba3ffb IM |
1415 | |
1416 | if (detailed_run < 3) | |
1417 | return 0; | |
1418 | ||
1419 | /* Append very, very detailed run extra attributes: */ | |
79695e1b | 1420 | return perf_evlist__add_default_attrs(evsel_list, very_very_detailed_attrs); |
2cba3ffb IM |
1421 | } |
1422 | ||
4979d0c7 JO |
1423 | static const char * const recort_usage[] = { |
1424 | "perf stat record [<options>]", | |
1425 | NULL, | |
1426 | }; | |
1427 | ||
3ba78bd0 JO |
1428 | static void init_features(struct perf_session *session) |
1429 | { | |
1430 | int feat; | |
1431 | ||
1432 | for (feat = HEADER_FIRST_FEATURE; feat < HEADER_LAST_FEATURE; feat++) | |
1433 | perf_header__set_feat(&session->header, feat); | |
1434 | ||
1435 | perf_header__clear_feat(&session->header, HEADER_BUILD_ID); | |
1436 | perf_header__clear_feat(&session->header, HEADER_TRACING_DATA); | |
1437 | perf_header__clear_feat(&session->header, HEADER_BRANCH_STACK); | |
1438 | perf_header__clear_feat(&session->header, HEADER_AUXTRACE); | |
1439 | } | |
1440 | ||
4979d0c7 JO |
1441 | static int __cmd_record(int argc, const char **argv) |
1442 | { | |
1443 | struct perf_session *session; | |
1444 | struct perf_data_file *file = &perf_stat.file; | |
1445 | ||
1446 | argc = parse_options(argc, argv, stat_options, record_usage, | |
1447 | PARSE_OPT_STOP_AT_NON_OPTION); | |
1448 | ||
1449 | if (output_name) | |
1450 | file->path = output_name; | |
1451 | ||
e9d6db8e JO |
1452 | if (run_count != 1 || forever) { |
1453 | pr_err("Cannot use -r option with perf stat record.\n"); | |
1454 | return -1; | |
1455 | } | |
1456 | ||
4979d0c7 JO |
1457 | session = perf_session__new(file, false, NULL); |
1458 | if (session == NULL) { | |
1459 | pr_err("Perf session creation failed.\n"); | |
1460 | return -1; | |
1461 | } | |
1462 | ||
3ba78bd0 JO |
1463 | init_features(session); |
1464 | ||
4979d0c7 JO |
1465 | session->evlist = evsel_list; |
1466 | perf_stat.session = session; | |
1467 | perf_stat.record = true; | |
1468 | return argc; | |
1469 | } | |
1470 | ||
1d037ca1 | 1471 | int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused) |
5242519b | 1472 | { |
b070a547 ACM |
1473 | const char * const stat_usage[] = { |
1474 | "perf stat [<options>] [<command>]", | |
1475 | NULL | |
1476 | }; | |
cc03c542 | 1477 | int status = -EINVAL, run_idx; |
4aa9015f | 1478 | const char *mode; |
5821522e | 1479 | FILE *output = stderr; |
ec0d3d1f | 1480 | unsigned int interval; |
4979d0c7 | 1481 | const char * const stat_subcommands[] = { "record" }; |
42202dd5 | 1482 | |
5af52b51 SE |
1483 | setlocale(LC_ALL, ""); |
1484 | ||
334fe7a3 | 1485 | evsel_list = perf_evlist__new(); |
361c99a6 ACM |
1486 | if (evsel_list == NULL) |
1487 | return -ENOMEM; | |
1488 | ||
4979d0c7 JO |
1489 | argc = parse_options_subcommand(argc, argv, stat_options, stat_subcommands, |
1490 | (const char **) stat_usage, | |
1491 | PARSE_OPT_STOP_AT_NON_OPTION); | |
1492 | ||
1493 | if (argc && !strncmp(argv[0], "rec", 3)) { | |
1494 | argc = __cmd_record(argc, argv); | |
1495 | if (argc < 0) | |
1496 | return -1; | |
1497 | } | |
d7470b6a | 1498 | |
ec0d3d1f JO |
1499 | interval = stat_config.interval; |
1500 | ||
4979d0c7 JO |
1501 | /* |
1502 | * For record command the -o is already taken care of. | |
1503 | */ | |
1504 | if (!STAT_RECORD && output_name && strcmp(output_name, "-")) | |
4aa9015f SE |
1505 | output = NULL; |
1506 | ||
56f3bae7 JC |
1507 | if (output_name && output_fd) { |
1508 | fprintf(stderr, "cannot use both --output and --log-fd\n"); | |
e0547311 JO |
1509 | parse_options_usage(stat_usage, stat_options, "o", 1); |
1510 | parse_options_usage(NULL, stat_options, "log-fd", 0); | |
cc03c542 | 1511 | goto out; |
56f3bae7 | 1512 | } |
fc3e4d07 SE |
1513 | |
1514 | if (output_fd < 0) { | |
1515 | fprintf(stderr, "argument to --log-fd must be a > 0\n"); | |
e0547311 | 1516 | parse_options_usage(stat_usage, stat_options, "log-fd", 0); |
cc03c542 | 1517 | goto out; |
fc3e4d07 SE |
1518 | } |
1519 | ||
4aa9015f SE |
1520 | if (!output) { |
1521 | struct timespec tm; | |
1522 | mode = append_file ? "a" : "w"; | |
1523 | ||
1524 | output = fopen(output_name, mode); | |
1525 | if (!output) { | |
1526 | perror("failed to create output file"); | |
fceda7fe | 1527 | return -1; |
4aa9015f SE |
1528 | } |
1529 | clock_gettime(CLOCK_REALTIME, &tm); | |
1530 | fprintf(output, "# started on %s\n", ctime(&tm.tv_sec)); | |
fc3e4d07 | 1531 | } else if (output_fd > 0) { |
56f3bae7 JC |
1532 | mode = append_file ? "a" : "w"; |
1533 | output = fdopen(output_fd, mode); | |
1534 | if (!output) { | |
1535 | perror("Failed opening logfd"); | |
1536 | return -errno; | |
1537 | } | |
4aa9015f SE |
1538 | } |
1539 | ||
5821522e JO |
1540 | stat_config.output = output; |
1541 | ||
d4ffd04d | 1542 | if (csv_sep) { |
d7470b6a | 1543 | csv_output = true; |
d4ffd04d JC |
1544 | if (!strcmp(csv_sep, "\\t")) |
1545 | csv_sep = "\t"; | |
1546 | } else | |
d7470b6a SE |
1547 | csv_sep = DEFAULT_SEPARATOR; |
1548 | ||
1549 | /* | |
1550 | * let the spreadsheet do the pretty-printing | |
1551 | */ | |
1552 | if (csv_output) { | |
61a9f324 | 1553 | /* User explicitly passed -B? */ |
d7470b6a SE |
1554 | if (big_num_opt == 1) { |
1555 | fprintf(stderr, "-B option not supported with -x\n"); | |
e0547311 JO |
1556 | parse_options_usage(stat_usage, stat_options, "B", 1); |
1557 | parse_options_usage(NULL, stat_options, "x", 1); | |
cc03c542 | 1558 | goto out; |
d7470b6a SE |
1559 | } else /* Nope, so disable big number formatting */ |
1560 | big_num = false; | |
1561 | } else if (big_num_opt == 0) /* User passed --no-big-num */ | |
1562 | big_num = false; | |
1563 | ||
602ad878 | 1564 | if (!argc && target__none(&target)) |
e0547311 | 1565 | usage_with_options(stat_usage, stat_options); |
ac3063bd | 1566 | |
a7e191c3 | 1567 | if (run_count < 0) { |
cc03c542 | 1568 | pr_err("Run count must be a positive number\n"); |
e0547311 | 1569 | parse_options_usage(stat_usage, stat_options, "r", 1); |
cc03c542 | 1570 | goto out; |
a7e191c3 FD |
1571 | } else if (run_count == 0) { |
1572 | forever = true; | |
1573 | run_count = 1; | |
1574 | } | |
ddcacfa0 | 1575 | |
421a50f3 | 1576 | if ((stat_config.aggr_mode == AGGR_THREAD) && !target__has_task(&target)) { |
32b8af82 JO |
1577 | fprintf(stderr, "The --per-thread option is only available " |
1578 | "when monitoring via -p -t options.\n"); | |
e0547311 JO |
1579 | parse_options_usage(NULL, stat_options, "p", 1); |
1580 | parse_options_usage(NULL, stat_options, "t", 1); | |
32b8af82 JO |
1581 | goto out; |
1582 | } | |
1583 | ||
1584 | /* | |
1585 | * no_aggr, cgroup are for system-wide only | |
1586 | * --per-thread is aggregated per thread, we dont mix it with cpu mode | |
1587 | */ | |
421a50f3 JO |
1588 | if (((stat_config.aggr_mode != AGGR_GLOBAL && |
1589 | stat_config.aggr_mode != AGGR_THREAD) || nr_cgroups) && | |
602ad878 | 1590 | !target__has_cpu(&target)) { |
023695d9 SE |
1591 | fprintf(stderr, "both cgroup and no-aggregation " |
1592 | "modes only available in system-wide mode\n"); | |
1593 | ||
e0547311 JO |
1594 | parse_options_usage(stat_usage, stat_options, "G", 1); |
1595 | parse_options_usage(NULL, stat_options, "A", 1); | |
1596 | parse_options_usage(NULL, stat_options, "a", 1); | |
cc03c542 | 1597 | goto out; |
d7e7a451 SE |
1598 | } |
1599 | ||
2cba3ffb IM |
1600 | if (add_default_attributes()) |
1601 | goto out; | |
ddcacfa0 | 1602 | |
602ad878 | 1603 | target__validate(&target); |
5c98d466 | 1604 | |
77a6f014 | 1605 | if (perf_evlist__create_maps(evsel_list, &target) < 0) { |
602ad878 | 1606 | if (target__has_task(&target)) { |
77a6f014 | 1607 | pr_err("Problems finding threads of monitor\n"); |
e0547311 JO |
1608 | parse_options_usage(stat_usage, stat_options, "p", 1); |
1609 | parse_options_usage(NULL, stat_options, "t", 1); | |
602ad878 | 1610 | } else if (target__has_cpu(&target)) { |
77a6f014 | 1611 | perror("failed to parse CPUs map"); |
e0547311 JO |
1612 | parse_options_usage(stat_usage, stat_options, "C", 1); |
1613 | parse_options_usage(NULL, stat_options, "a", 1); | |
cc03c542 NK |
1614 | } |
1615 | goto out; | |
60d567e2 | 1616 | } |
32b8af82 JO |
1617 | |
1618 | /* | |
1619 | * Initialize thread_map with comm names, | |
1620 | * so we could print it out on output. | |
1621 | */ | |
421a50f3 | 1622 | if (stat_config.aggr_mode == AGGR_THREAD) |
32b8af82 JO |
1623 | thread_map__read_comms(evsel_list->threads); |
1624 | ||
13370a9b | 1625 | if (interval && interval < 100) { |
19afd104 KL |
1626 | if (interval < 10) { |
1627 | pr_err("print interval must be >= 10ms\n"); | |
e0547311 | 1628 | parse_options_usage(stat_usage, stat_options, "I", 1); |
19afd104 KL |
1629 | goto out; |
1630 | } else | |
1631 | pr_warning("print interval < 100ms. " | |
1632 | "The overhead percentage could be high in some cases. " | |
1633 | "Please proceed with caution.\n"); | |
13370a9b | 1634 | } |
c45c6ea2 | 1635 | |
d134ffb9 | 1636 | if (perf_evlist__alloc_stats(evsel_list, interval)) |
03ad9747 | 1637 | goto out; |
d6d901c2 | 1638 | |
86ee6e18 | 1639 | if (perf_stat_init_aggr_mode()) |
03ad9747 | 1640 | goto out; |
86ee6e18 | 1641 | |
58d7e993 IM |
1642 | /* |
1643 | * We dont want to block the signals - that would cause | |
1644 | * child tasks to inherit that and Ctrl-C would not work. | |
1645 | * What we want is for Ctrl-C to work in the exec()-ed | |
1646 | * task, but being ignored by perf stat itself: | |
1647 | */ | |
f7b7c26e | 1648 | atexit(sig_atexit); |
a7e191c3 FD |
1649 | if (!forever) |
1650 | signal(SIGINT, skip_signal); | |
13370a9b | 1651 | signal(SIGCHLD, skip_signal); |
58d7e993 IM |
1652 | signal(SIGALRM, skip_signal); |
1653 | signal(SIGABRT, skip_signal); | |
1654 | ||
42202dd5 | 1655 | status = 0; |
a7e191c3 | 1656 | for (run_idx = 0; forever || run_idx < run_count; run_idx++) { |
42202dd5 | 1657 | if (run_count != 1 && verbose) |
4aa9015f SE |
1658 | fprintf(output, "[ perf stat: executing run #%d ... ]\n", |
1659 | run_idx + 1); | |
f9cef0a9 | 1660 | |
42202dd5 | 1661 | status = run_perf_stat(argc, argv); |
a7e191c3 | 1662 | if (forever && status != -1) { |
d4f63a47 | 1663 | print_counters(NULL, argc, argv); |
254ecbc7 | 1664 | perf_stat__reset_stats(); |
a7e191c3 | 1665 | } |
42202dd5 IM |
1666 | } |
1667 | ||
a7e191c3 | 1668 | if (!forever && status != -1 && !interval) |
d4f63a47 | 1669 | print_counters(NULL, argc, argv); |
d134ffb9 | 1670 | |
4979d0c7 JO |
1671 | if (STAT_RECORD) { |
1672 | /* | |
1673 | * We synthesize the kernel mmap record just so that older tools | |
1674 | * don't emit warnings about not being able to resolve symbols | |
1675 | * due to /proc/sys/kernel/kptr_restrict settings and instear provide | |
1676 | * a saner message about no samples being in the perf.data file. | |
1677 | * | |
1678 | * This also serves to suppress a warning about f_header.data.size == 0 | |
8b99b1a4 JO |
1679 | * in header.c at the moment 'perf stat record' gets introduced, which |
1680 | * is not really needed once we start adding the stat specific PERF_RECORD_ | |
1681 | * records, but the need to suppress the kptr_restrict messages in older | |
1682 | * tools remain -acme | |
4979d0c7 JO |
1683 | */ |
1684 | int fd = perf_data_file__fd(&perf_stat.file); | |
1685 | int err = perf_event__synthesize_kernel_mmap((void *)&perf_stat, | |
1686 | process_synthesized_event, | |
1687 | &perf_stat.session->machines.host); | |
1688 | if (err) { | |
1689 | pr_warning("Couldn't synthesize the kernel mmap record, harmless, " | |
1690 | "older tools may produce warnings about this file\n."); | |
1691 | } | |
1692 | ||
7aad0c32 JO |
1693 | if (!interval) { |
1694 | if (WRITE_STAT_ROUND_EVENT(walltime_nsecs_stats.max, FINAL)) | |
1695 | pr_err("failed to write stat round event\n"); | |
1696 | } | |
1697 | ||
664c98d4 JO |
1698 | if (!perf_stat.file.is_pipe) { |
1699 | perf_stat.session->header.data_size += perf_stat.bytes_written; | |
1700 | perf_session__write_header(perf_stat.session, evsel_list, fd, true); | |
1701 | } | |
4979d0c7 JO |
1702 | |
1703 | perf_session__delete(perf_stat.session); | |
1704 | } | |
1705 | ||
544c2ae7 | 1706 | perf_stat__exit_aggr_mode(); |
d134ffb9 | 1707 | perf_evlist__free_stats(evsel_list); |
0015e2e1 ACM |
1708 | out: |
1709 | perf_evlist__delete(evsel_list); | |
42202dd5 | 1710 | return status; |
ddcacfa0 | 1711 | } |