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" |
5242519b IM |
48 | #include "util/parse-options.h" |
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" |
ddcacfa0 | 62 | |
1f16c575 | 63 | #include <stdlib.h> |
ddcacfa0 | 64 | #include <sys/prctl.h> |
5af52b51 | 65 | #include <locale.h> |
16c8a109 | 66 | |
d7470b6a | 67 | #define DEFAULT_SEPARATOR " " |
2cee77c4 DA |
68 | #define CNTR_NOT_SUPPORTED "<not supported>" |
69 | #define CNTR_NOT_COUNTED "<not counted>" | |
d7470b6a | 70 | |
d4f63a47 | 71 | static void print_counters(struct timespec *ts, int argc, const char **argv); |
13370a9b | 72 | |
4cabc3d1 | 73 | /* Default events used for perf stat -T */ |
a454742c JO |
74 | static const char *transaction_attrs = { |
75 | "task-clock," | |
4cabc3d1 AK |
76 | "{" |
77 | "instructions," | |
78 | "cycles," | |
79 | "cpu/cycles-t/," | |
80 | "cpu/tx-start/," | |
81 | "cpu/el-start/," | |
82 | "cpu/cycles-ct/" | |
83 | "}" | |
84 | }; | |
85 | ||
86 | /* More limited version when the CPU does not have all events. */ | |
a454742c JO |
87 | static const char * transaction_limited_attrs = { |
88 | "task-clock," | |
4cabc3d1 AK |
89 | "{" |
90 | "instructions," | |
91 | "cycles," | |
92 | "cpu/cycles-t/," | |
93 | "cpu/tx-start/" | |
94 | "}" | |
95 | }; | |
96 | ||
666e6d48 | 97 | static struct perf_evlist *evsel_list; |
361c99a6 | 98 | |
602ad878 | 99 | static struct target target = { |
77a6f014 NK |
100 | .uid = UINT_MAX, |
101 | }; | |
ddcacfa0 | 102 | |
1e5a2931 JO |
103 | typedef int (*aggr_get_id_t)(struct cpu_map *m, int cpu); |
104 | ||
3d632595 | 105 | static int run_count = 1; |
2e6cdf99 | 106 | static bool no_inherit = false; |
d07f0b12 | 107 | static volatile pid_t child_pid = -1; |
c0555642 | 108 | static bool null_run = false; |
2cba3ffb | 109 | static int detailed_run = 0; |
4cabc3d1 | 110 | static bool transaction_run; |
201e0b06 | 111 | static bool big_num = true; |
d7470b6a | 112 | static int big_num_opt = -1; |
d7470b6a SE |
113 | static const char *csv_sep = NULL; |
114 | static bool csv_output = false; | |
43bece79 | 115 | static bool group = false; |
1f16c575 PZ |
116 | static const char *pre_cmd = NULL; |
117 | static const char *post_cmd = NULL; | |
118 | static bool sync_run = false; | |
41191688 | 119 | static unsigned int initial_delay = 0; |
410136f5 | 120 | static unsigned int unit_width = 4; /* strlen("unit") */ |
a7e191c3 | 121 | static bool forever = false; |
13370a9b | 122 | static struct timespec ref_time; |
86ee6e18 | 123 | static struct cpu_map *aggr_map; |
1e5a2931 | 124 | static aggr_get_id_t aggr_get_id; |
5af52b51 | 125 | |
60666c63 LW |
126 | static volatile int done = 0; |
127 | ||
421a50f3 JO |
128 | static struct perf_stat_config stat_config = { |
129 | .aggr_mode = AGGR_GLOBAL, | |
711a572e | 130 | .scale = true, |
421a50f3 JO |
131 | }; |
132 | ||
13370a9b SE |
133 | static inline void diff_timespec(struct timespec *r, struct timespec *a, |
134 | struct timespec *b) | |
135 | { | |
136 | r->tv_sec = a->tv_sec - b->tv_sec; | |
137 | if (a->tv_nsec < b->tv_nsec) { | |
138 | r->tv_nsec = a->tv_nsec + 1000000000L - b->tv_nsec; | |
139 | r->tv_sec--; | |
140 | } else { | |
141 | r->tv_nsec = a->tv_nsec - b->tv_nsec ; | |
142 | } | |
143 | } | |
144 | ||
254ecbc7 JO |
145 | static void perf_stat__reset_stats(void) |
146 | { | |
147 | perf_evlist__reset_stats(evsel_list); | |
f87027b9 | 148 | perf_stat__reset_shadow_stats(); |
1eda3b21 JO |
149 | } |
150 | ||
cac21425 | 151 | static int create_perf_stat_counter(struct perf_evsel *evsel) |
ddcacfa0 | 152 | { |
69aad6f1 | 153 | struct perf_event_attr *attr = &evsel->attr; |
727ab04e | 154 | |
711a572e | 155 | if (stat_config.scale) |
a21ca2ca IM |
156 | attr->read_format = PERF_FORMAT_TOTAL_TIME_ENABLED | |
157 | PERF_FORMAT_TOTAL_TIME_RUNNING; | |
ddcacfa0 | 158 | |
5d2cd909 ACM |
159 | attr->inherit = !no_inherit; |
160 | ||
602ad878 | 161 | if (target__has_cpu(&target)) |
594ac61a | 162 | return perf_evsel__open_per_cpu(evsel, perf_evsel__cpus(evsel)); |
5622c07b | 163 | |
602ad878 | 164 | if (!target__has_task(&target) && perf_evsel__is_group_leader(evsel)) { |
48290609 | 165 | attr->disabled = 1; |
41191688 AK |
166 | if (!initial_delay) |
167 | attr->enable_on_exec = 1; | |
ddcacfa0 | 168 | } |
084ab9f8 | 169 | |
594ac61a | 170 | return perf_evsel__open_per_thread(evsel, evsel_list->threads); |
ddcacfa0 IM |
171 | } |
172 | ||
c04f5e5d IM |
173 | /* |
174 | * Does the counter have nsecs as a unit? | |
175 | */ | |
daec78a0 | 176 | static inline int nsec_counter(struct perf_evsel *evsel) |
c04f5e5d | 177 | { |
daec78a0 ACM |
178 | if (perf_evsel__match(evsel, SOFTWARE, SW_CPU_CLOCK) || |
179 | perf_evsel__match(evsel, SOFTWARE, SW_TASK_CLOCK)) | |
c04f5e5d IM |
180 | return 1; |
181 | ||
182 | return 0; | |
183 | } | |
184 | ||
f5b4a9c3 SE |
185 | /* |
186 | * Read out the results of a single counter: | |
187 | * do not aggregate counts across CPUs in system-wide mode | |
188 | */ | |
c52b12ed | 189 | static int read_counter(struct perf_evsel *counter) |
f5b4a9c3 | 190 | { |
9bf1a529 JO |
191 | int nthreads = thread_map__nr(evsel_list->threads); |
192 | int ncpus = perf_evsel__nr_cpus(counter); | |
193 | int cpu, thread; | |
f5b4a9c3 | 194 | |
3b4331d9 SP |
195 | if (!counter->supported) |
196 | return -ENOENT; | |
197 | ||
9bf1a529 JO |
198 | if (counter->system_wide) |
199 | nthreads = 1; | |
200 | ||
201 | for (thread = 0; thread < nthreads; thread++) { | |
202 | for (cpu = 0; cpu < ncpus; cpu++) { | |
3b3eb044 JO |
203 | struct perf_counts_values *count; |
204 | ||
205 | count = perf_counts(counter->counts, cpu, thread); | |
206 | if (perf_evsel__read(counter, cpu, thread, count)) | |
9bf1a529 JO |
207 | return -1; |
208 | } | |
f5b4a9c3 | 209 | } |
c52b12ed ACM |
210 | |
211 | return 0; | |
2996f5dd IM |
212 | } |
213 | ||
5fc472a6 | 214 | static void read_counters(bool close_counters) |
13370a9b | 215 | { |
13370a9b | 216 | struct perf_evsel *counter; |
13370a9b | 217 | |
106a94a0 | 218 | evlist__for_each(evsel_list, counter) { |
3b3eb044 | 219 | if (read_counter(counter)) |
245bad8e | 220 | pr_debug("failed to read counter %s\n", counter->name); |
3b3eb044 | 221 | |
f80010eb | 222 | if (perf_stat_process_counter(&stat_config, counter)) |
3b3eb044 | 223 | pr_warning("failed to process counter %s\n", counter->name); |
106a94a0 | 224 | |
5fc472a6 | 225 | if (close_counters) { |
106a94a0 JO |
226 | perf_evsel__close_fd(counter, perf_evsel__nr_cpus(counter), |
227 | thread_map__nr(evsel_list->threads)); | |
13370a9b SE |
228 | } |
229 | } | |
106a94a0 JO |
230 | } |
231 | ||
ba411a95 | 232 | static void process_interval(void) |
106a94a0 | 233 | { |
106a94a0 | 234 | struct timespec ts, rs; |
106a94a0 JO |
235 | |
236 | read_counters(false); | |
86ee6e18 | 237 | |
13370a9b SE |
238 | clock_gettime(CLOCK_MONOTONIC, &ts); |
239 | diff_timespec(&rs, &ts, &ref_time); | |
13370a9b | 240 | |
d4f63a47 | 241 | print_counters(&rs, 0, NULL); |
13370a9b SE |
242 | } |
243 | ||
41191688 AK |
244 | static void handle_initial_delay(void) |
245 | { | |
246 | struct perf_evsel *counter; | |
247 | ||
248 | if (initial_delay) { | |
249 | const int ncpus = cpu_map__nr(evsel_list->cpus), | |
250 | nthreads = thread_map__nr(evsel_list->threads); | |
251 | ||
252 | usleep(initial_delay * 1000); | |
0050f7aa | 253 | evlist__for_each(evsel_list, counter) |
41191688 AK |
254 | perf_evsel__enable(counter, ncpus, nthreads); |
255 | } | |
256 | } | |
257 | ||
f33cbe72 | 258 | static volatile int workload_exec_errno; |
6af206fd ACM |
259 | |
260 | /* | |
261 | * perf_evlist__prepare_workload will send a SIGUSR1 | |
262 | * if the fork fails, since we asked by setting its | |
263 | * want_signal to true. | |
264 | */ | |
f33cbe72 ACM |
265 | static void workload_exec_failed_signal(int signo __maybe_unused, siginfo_t *info, |
266 | void *ucontext __maybe_unused) | |
6af206fd | 267 | { |
f33cbe72 | 268 | workload_exec_errno = info->si_value.sival_int; |
6af206fd ACM |
269 | } |
270 | ||
acf28922 | 271 | static int __run_perf_stat(int argc, const char **argv) |
42202dd5 | 272 | { |
ec0d3d1f | 273 | int interval = stat_config.interval; |
56e52e85 | 274 | char msg[512]; |
42202dd5 | 275 | unsigned long long t0, t1; |
cac21425 | 276 | struct perf_evsel *counter; |
13370a9b | 277 | struct timespec ts; |
410136f5 | 278 | size_t l; |
42202dd5 | 279 | int status = 0; |
6be2850e | 280 | const bool forks = (argc > 0); |
42202dd5 | 281 | |
13370a9b SE |
282 | if (interval) { |
283 | ts.tv_sec = interval / 1000; | |
284 | ts.tv_nsec = (interval % 1000) * 1000000; | |
285 | } else { | |
286 | ts.tv_sec = 1; | |
287 | ts.tv_nsec = 0; | |
288 | } | |
289 | ||
60666c63 | 290 | if (forks) { |
735f7e0b ACM |
291 | if (perf_evlist__prepare_workload(evsel_list, &target, argv, false, |
292 | workload_exec_failed_signal) < 0) { | |
acf28922 NK |
293 | perror("failed to prepare workload"); |
294 | return -1; | |
60666c63 | 295 | } |
d20a47e7 | 296 | child_pid = evsel_list->workload.pid; |
051ae7f7 PM |
297 | } |
298 | ||
6a4bb04c | 299 | if (group) |
63dab225 | 300 | perf_evlist__set_leader(evsel_list); |
6a4bb04c | 301 | |
0050f7aa | 302 | evlist__for_each(evsel_list, counter) { |
cac21425 | 303 | if (create_perf_stat_counter(counter) < 0) { |
979987a5 DA |
304 | /* |
305 | * PPC returns ENXIO for HW counters until 2.6.37 | |
306 | * (behavior changed with commit b0a873e). | |
307 | */ | |
38f6ae1e | 308 | if (errno == EINVAL || errno == ENOSYS || |
979987a5 DA |
309 | errno == ENOENT || errno == EOPNOTSUPP || |
310 | errno == ENXIO) { | |
c63ca0c0 DA |
311 | if (verbose) |
312 | ui__warning("%s event is not supported by the kernel.\n", | |
7289f83c | 313 | perf_evsel__name(counter)); |
2cee77c4 | 314 | counter->supported = false; |
cb5ef600 KL |
315 | |
316 | if ((counter->leader != counter) || | |
317 | !(counter->leader->nr_members > 1)) | |
318 | continue; | |
c63ca0c0 | 319 | } |
ede70290 | 320 | |
56e52e85 ACM |
321 | perf_evsel__open_strerror(counter, &target, |
322 | errno, msg, sizeof(msg)); | |
323 | ui__error("%s\n", msg); | |
324 | ||
48290609 ACM |
325 | if (child_pid != -1) |
326 | kill(child_pid, SIGTERM); | |
fceda7fe | 327 | |
48290609 ACM |
328 | return -1; |
329 | } | |
2cee77c4 | 330 | counter->supported = true; |
410136f5 SE |
331 | |
332 | l = strlen(counter->unit); | |
333 | if (l > unit_width) | |
334 | unit_width = l; | |
084ab9f8 | 335 | } |
42202dd5 | 336 | |
23d4aad4 ACM |
337 | if (perf_evlist__apply_filters(evsel_list, &counter)) { |
338 | error("failed to set filter \"%s\" on event %s with %d (%s)\n", | |
339 | counter->filter, perf_evsel__name(counter), errno, | |
759e612b | 340 | strerror_r(errno, msg, sizeof(msg))); |
cfd748ae FW |
341 | return -1; |
342 | } | |
343 | ||
42202dd5 IM |
344 | /* |
345 | * Enable counters and exec the command: | |
346 | */ | |
347 | t0 = rdclock(); | |
13370a9b | 348 | clock_gettime(CLOCK_MONOTONIC, &ref_time); |
42202dd5 | 349 | |
60666c63 | 350 | if (forks) { |
acf28922 | 351 | perf_evlist__start_workload(evsel_list); |
41191688 | 352 | handle_initial_delay(); |
acf28922 | 353 | |
13370a9b SE |
354 | if (interval) { |
355 | while (!waitpid(child_pid, &status, WNOHANG)) { | |
356 | nanosleep(&ts, NULL); | |
ba411a95 | 357 | process_interval(); |
13370a9b SE |
358 | } |
359 | } | |
60666c63 | 360 | wait(&status); |
6af206fd | 361 | |
f33cbe72 ACM |
362 | if (workload_exec_errno) { |
363 | const char *emsg = strerror_r(workload_exec_errno, msg, sizeof(msg)); | |
364 | pr_err("Workload failed: %s\n", emsg); | |
6af206fd | 365 | return -1; |
f33cbe72 | 366 | } |
6af206fd | 367 | |
33e49ea7 AK |
368 | if (WIFSIGNALED(status)) |
369 | psignal(WTERMSIG(status), argv[0]); | |
60666c63 | 370 | } else { |
41191688 | 371 | handle_initial_delay(); |
13370a9b SE |
372 | while (!done) { |
373 | nanosleep(&ts, NULL); | |
374 | if (interval) | |
ba411a95 | 375 | process_interval(); |
13370a9b | 376 | } |
60666c63 | 377 | } |
42202dd5 | 378 | |
42202dd5 IM |
379 | t1 = rdclock(); |
380 | ||
9e9772c4 | 381 | update_stats(&walltime_nsecs_stats, t1 - t0); |
42202dd5 | 382 | |
106a94a0 | 383 | read_counters(true); |
c52b12ed | 384 | |
42202dd5 IM |
385 | return WEXITSTATUS(status); |
386 | } | |
387 | ||
41cde476 | 388 | static int run_perf_stat(int argc, const char **argv) |
1f16c575 PZ |
389 | { |
390 | int ret; | |
391 | ||
392 | if (pre_cmd) { | |
393 | ret = system(pre_cmd); | |
394 | if (ret) | |
395 | return ret; | |
396 | } | |
397 | ||
398 | if (sync_run) | |
399 | sync(); | |
400 | ||
401 | ret = __run_perf_stat(argc, argv); | |
402 | if (ret) | |
403 | return ret; | |
404 | ||
405 | if (post_cmd) { | |
406 | ret = system(post_cmd); | |
407 | if (ret) | |
408 | return ret; | |
409 | } | |
410 | ||
411 | return ret; | |
412 | } | |
413 | ||
d73515c0 AK |
414 | static void print_running(u64 run, u64 ena) |
415 | { | |
416 | if (csv_output) { | |
5821522e | 417 | fprintf(stat_config.output, "%s%" PRIu64 "%s%.2f", |
d73515c0 AK |
418 | csv_sep, |
419 | run, | |
420 | csv_sep, | |
421 | ena ? 100.0 * run / ena : 100.0); | |
422 | } else if (run != ena) { | |
5821522e | 423 | fprintf(stat_config.output, " (%.2f%%)", 100.0 * run / ena); |
d73515c0 AK |
424 | } |
425 | } | |
426 | ||
f99844cb IM |
427 | static void print_noise_pct(double total, double avg) |
428 | { | |
0007ecea | 429 | double pct = rel_stddev_stats(total, avg); |
f99844cb | 430 | |
3ae9a34d | 431 | if (csv_output) |
5821522e | 432 | fprintf(stat_config.output, "%s%.2f%%", csv_sep, pct); |
a1bca6cc | 433 | else if (pct) |
5821522e | 434 | fprintf(stat_config.output, " ( +-%6.2f%% )", pct); |
f99844cb IM |
435 | } |
436 | ||
69aad6f1 | 437 | static void print_noise(struct perf_evsel *evsel, double avg) |
42202dd5 | 438 | { |
581cc8a2 | 439 | struct perf_stat_evsel *ps; |
69aad6f1 | 440 | |
849abde9 PZ |
441 | if (run_count == 1) |
442 | return; | |
443 | ||
69aad6f1 | 444 | ps = evsel->priv; |
f99844cb | 445 | print_noise_pct(stddev_stats(&ps->res_stats[0]), avg); |
42202dd5 IM |
446 | } |
447 | ||
12c08a9f | 448 | static void aggr_printout(struct perf_evsel *evsel, int id, int nr) |
44175b6f | 449 | { |
421a50f3 | 450 | switch (stat_config.aggr_mode) { |
12c08a9f | 451 | case AGGR_CORE: |
5821522e | 452 | fprintf(stat_config.output, "S%d-C%*d%s%*d%s", |
12c08a9f SE |
453 | cpu_map__id_to_socket(id), |
454 | csv_output ? 0 : -8, | |
455 | cpu_map__id_to_cpu(id), | |
456 | csv_sep, | |
457 | csv_output ? 0 : 4, | |
458 | nr, | |
459 | csv_sep); | |
460 | break; | |
86ee6e18 | 461 | case AGGR_SOCKET: |
5821522e | 462 | fprintf(stat_config.output, "S%*d%s%*d%s", |
d7e7a451 | 463 | csv_output ? 0 : -5, |
12c08a9f | 464 | id, |
d7e7a451 SE |
465 | csv_sep, |
466 | csv_output ? 0 : 4, | |
467 | nr, | |
468 | csv_sep); | |
86ee6e18 SE |
469 | break; |
470 | case AGGR_NONE: | |
5821522e | 471 | fprintf(stat_config.output, "CPU%*d%s", |
d7470b6a | 472 | csv_output ? 0 : -4, |
12c08a9f | 473 | perf_evsel__cpus(evsel)->map[id], csv_sep); |
86ee6e18 | 474 | break; |
32b8af82 | 475 | case AGGR_THREAD: |
5821522e | 476 | fprintf(stat_config.output, "%*s-%*d%s", |
32b8af82 JO |
477 | csv_output ? 0 : 16, |
478 | thread_map__comm(evsel->threads, id), | |
479 | csv_output ? 0 : -8, | |
480 | thread_map__pid(evsel->threads, id), | |
481 | csv_sep); | |
482 | break; | |
86ee6e18 | 483 | case AGGR_GLOBAL: |
208df99e | 484 | case AGGR_UNSET: |
86ee6e18 SE |
485 | default: |
486 | break; | |
487 | } | |
488 | } | |
489 | ||
da88c7f7 | 490 | static void nsec_printout(int id, int nr, struct perf_evsel *evsel, double avg) |
86ee6e18 | 491 | { |
5821522e | 492 | FILE *output = stat_config.output; |
86ee6e18 | 493 | double msecs = avg / 1e6; |
410136f5 | 494 | const char *fmt_v, *fmt_n; |
4bbe5a61 | 495 | char name[25]; |
86ee6e18 | 496 | |
410136f5 SE |
497 | fmt_v = csv_output ? "%.6f%s" : "%18.6f%s"; |
498 | fmt_n = csv_output ? "%s" : "%-25s"; | |
499 | ||
da88c7f7 | 500 | aggr_printout(evsel, id, nr); |
d7470b6a | 501 | |
4bbe5a61 DA |
502 | scnprintf(name, sizeof(name), "%s%s", |
503 | perf_evsel__name(evsel), csv_output ? "" : " (msec)"); | |
410136f5 SE |
504 | |
505 | fprintf(output, fmt_v, msecs, csv_sep); | |
506 | ||
507 | if (csv_output) | |
508 | fprintf(output, "%s%s", evsel->unit, csv_sep); | |
509 | else | |
510 | fprintf(output, "%-*s%s", unit_width, evsel->unit, csv_sep); | |
511 | ||
512 | fprintf(output, fmt_n, name); | |
d7470b6a | 513 | |
023695d9 | 514 | if (evsel->cgrp) |
4aa9015f | 515 | fprintf(output, "%s%s", csv_sep, evsel->cgrp->name); |
023695d9 | 516 | |
ec0d3d1f | 517 | if (csv_output || stat_config.interval) |
d7470b6a | 518 | return; |
44175b6f | 519 | |
daec78a0 | 520 | if (perf_evsel__match(evsel, SOFTWARE, SW_TASK_CLOCK)) |
4aa9015f SE |
521 | fprintf(output, " # %8.3f CPUs utilized ", |
522 | avg / avg_stats(&walltime_nsecs_stats)); | |
9dac6a29 NK |
523 | else |
524 | fprintf(output, " "); | |
44175b6f IM |
525 | } |
526 | ||
556b1fb7 JO |
527 | static void abs_printout(int id, int nr, struct perf_evsel *evsel, double avg) |
528 | { | |
5821522e | 529 | FILE *output = stat_config.output; |
556b1fb7 JO |
530 | double sc = evsel->scale; |
531 | const char *fmt; | |
532 | int cpu = cpu_map__id_to_cpu(id); | |
533 | ||
534 | if (csv_output) { | |
535 | fmt = sc != 1.0 ? "%.2f%s" : "%.0f%s"; | |
536 | } else { | |
537 | if (big_num) | |
538 | fmt = sc != 1.0 ? "%'18.2f%s" : "%'18.0f%s"; | |
539 | else | |
540 | fmt = sc != 1.0 ? "%18.2f%s" : "%18.0f%s"; | |
541 | } | |
542 | ||
543 | aggr_printout(evsel, id, nr); | |
544 | ||
421a50f3 | 545 | if (stat_config.aggr_mode == AGGR_GLOBAL) |
556b1fb7 JO |
546 | cpu = 0; |
547 | ||
548 | fprintf(output, fmt, avg, csv_sep); | |
549 | ||
550 | if (evsel->unit) | |
551 | fprintf(output, "%-*s%s", | |
552 | csv_output ? 0 : unit_width, | |
553 | evsel->unit, csv_sep); | |
554 | ||
555 | fprintf(output, "%-*s", csv_output ? 0 : 25, perf_evsel__name(evsel)); | |
556 | ||
557 | if (evsel->cgrp) | |
558 | fprintf(output, "%s%s", csv_sep, evsel->cgrp->name); | |
559 | ||
ec0d3d1f | 560 | if (csv_output || stat_config.interval) |
556b1fb7 JO |
561 | return; |
562 | ||
421a50f3 JO |
563 | perf_stat__print_shadow_stats(output, evsel, avg, cpu, |
564 | stat_config.aggr_mode); | |
556b1fb7 JO |
565 | } |
566 | ||
86ee6e18 | 567 | static void print_aggr(char *prefix) |
d7e7a451 | 568 | { |
5821522e | 569 | FILE *output = stat_config.output; |
d7e7a451 | 570 | struct perf_evsel *counter; |
601083cf | 571 | int cpu, s, s2, id, nr; |
410136f5 | 572 | double uval; |
d7e7a451 | 573 | u64 ena, run, val; |
d7e7a451 | 574 | |
86ee6e18 | 575 | if (!(aggr_map || aggr_get_id)) |
d7e7a451 SE |
576 | return; |
577 | ||
86ee6e18 SE |
578 | for (s = 0; s < aggr_map->nr; s++) { |
579 | id = aggr_map->map[s]; | |
0050f7aa | 580 | evlist__for_each(evsel_list, counter) { |
d7e7a451 SE |
581 | val = ena = run = 0; |
582 | nr = 0; | |
583 | for (cpu = 0; cpu < perf_evsel__nr_cpus(counter); cpu++) { | |
601083cf | 584 | s2 = aggr_get_id(perf_evsel__cpus(counter), cpu); |
86ee6e18 | 585 | if (s2 != id) |
d7e7a451 | 586 | continue; |
a6fa0038 JO |
587 | val += perf_counts(counter->counts, cpu, 0)->val; |
588 | ena += perf_counts(counter->counts, cpu, 0)->ena; | |
589 | run += perf_counts(counter->counts, cpu, 0)->run; | |
d7e7a451 SE |
590 | nr++; |
591 | } | |
592 | if (prefix) | |
593 | fprintf(output, "%s", prefix); | |
594 | ||
595 | if (run == 0 || ena == 0) { | |
582ec082 | 596 | aggr_printout(counter, id, nr); |
86ee6e18 | 597 | |
410136f5 | 598 | fprintf(output, "%*s%s", |
d7e7a451 SE |
599 | csv_output ? 0 : 18, |
600 | counter->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED, | |
410136f5 SE |
601 | csv_sep); |
602 | ||
603 | fprintf(output, "%-*s%s", | |
604 | csv_output ? 0 : unit_width, | |
605 | counter->unit, csv_sep); | |
606 | ||
607 | fprintf(output, "%*s", | |
608 | csv_output ? 0 : -25, | |
d7e7a451 | 609 | perf_evsel__name(counter)); |
86ee6e18 | 610 | |
d7e7a451 SE |
611 | if (counter->cgrp) |
612 | fprintf(output, "%s%s", | |
613 | csv_sep, counter->cgrp->name); | |
614 | ||
d73515c0 | 615 | print_running(run, ena); |
d7e7a451 SE |
616 | fputc('\n', output); |
617 | continue; | |
618 | } | |
410136f5 | 619 | uval = val * counter->scale; |
d7e7a451 SE |
620 | |
621 | if (nsec_counter(counter)) | |
410136f5 | 622 | nsec_printout(id, nr, counter, uval); |
d7e7a451 | 623 | else |
410136f5 | 624 | abs_printout(id, nr, counter, uval); |
d7e7a451 | 625 | |
d73515c0 | 626 | if (!csv_output) |
d7e7a451 SE |
627 | print_noise(counter, 1.0); |
628 | ||
d73515c0 | 629 | print_running(run, ena); |
d7e7a451 SE |
630 | fputc('\n', output); |
631 | } | |
632 | } | |
633 | } | |
634 | ||
32b8af82 JO |
635 | static void print_aggr_thread(struct perf_evsel *counter, char *prefix) |
636 | { | |
5821522e | 637 | FILE *output = stat_config.output; |
32b8af82 JO |
638 | int nthreads = thread_map__nr(counter->threads); |
639 | int ncpus = cpu_map__nr(counter->cpus); | |
640 | int cpu, thread; | |
641 | double uval; | |
642 | ||
643 | for (thread = 0; thread < nthreads; thread++) { | |
644 | u64 ena = 0, run = 0, val = 0; | |
645 | ||
646 | for (cpu = 0; cpu < ncpus; cpu++) { | |
647 | val += perf_counts(counter->counts, cpu, thread)->val; | |
648 | ena += perf_counts(counter->counts, cpu, thread)->ena; | |
649 | run += perf_counts(counter->counts, cpu, thread)->run; | |
650 | } | |
651 | ||
652 | if (prefix) | |
653 | fprintf(output, "%s", prefix); | |
654 | ||
655 | uval = val * counter->scale; | |
656 | ||
657 | if (nsec_counter(counter)) | |
658 | nsec_printout(thread, 0, counter, uval); | |
659 | else | |
660 | abs_printout(thread, 0, counter, uval); | |
661 | ||
662 | if (!csv_output) | |
663 | print_noise(counter, 1.0); | |
664 | ||
665 | print_running(run, ena); | |
666 | fputc('\n', output); | |
667 | } | |
668 | } | |
669 | ||
2996f5dd IM |
670 | /* |
671 | * Print out the results of a single counter: | |
f5b4a9c3 | 672 | * aggregated counts in system-wide mode |
2996f5dd | 673 | */ |
13370a9b | 674 | static void print_counter_aggr(struct perf_evsel *counter, char *prefix) |
2996f5dd | 675 | { |
5821522e | 676 | FILE *output = stat_config.output; |
581cc8a2 | 677 | struct perf_stat_evsel *ps = counter->priv; |
69aad6f1 | 678 | double avg = avg_stats(&ps->res_stats[0]); |
c52b12ed | 679 | int scaled = counter->counts->scaled; |
410136f5 | 680 | double uval; |
d73515c0 AK |
681 | double avg_enabled, avg_running; |
682 | ||
683 | avg_enabled = avg_stats(&ps->res_stats[1]); | |
684 | avg_running = avg_stats(&ps->res_stats[2]); | |
2996f5dd | 685 | |
13370a9b SE |
686 | if (prefix) |
687 | fprintf(output, "%s", prefix); | |
688 | ||
3b4331d9 | 689 | if (scaled == -1 || !counter->supported) { |
410136f5 | 690 | fprintf(output, "%*s%s", |
d7470b6a | 691 | csv_output ? 0 : 18, |
2cee77c4 | 692 | counter->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED, |
410136f5 SE |
693 | csv_sep); |
694 | fprintf(output, "%-*s%s", | |
695 | csv_output ? 0 : unit_width, | |
696 | counter->unit, csv_sep); | |
697 | fprintf(output, "%*s", | |
698 | csv_output ? 0 : -25, | |
7289f83c | 699 | perf_evsel__name(counter)); |
023695d9 SE |
700 | |
701 | if (counter->cgrp) | |
4aa9015f | 702 | fprintf(output, "%s%s", csv_sep, counter->cgrp->name); |
023695d9 | 703 | |
d73515c0 | 704 | print_running(avg_running, avg_enabled); |
4aa9015f | 705 | fputc('\n', output); |
2996f5dd IM |
706 | return; |
707 | } | |
c04f5e5d | 708 | |
410136f5 SE |
709 | uval = avg * counter->scale; |
710 | ||
44175b6f | 711 | if (nsec_counter(counter)) |
410136f5 | 712 | nsec_printout(-1, 0, counter, uval); |
44175b6f | 713 | else |
410136f5 | 714 | abs_printout(-1, 0, counter, uval); |
849abde9 | 715 | |
3ae9a34d ZH |
716 | print_noise(counter, avg); |
717 | ||
d73515c0 | 718 | print_running(avg_running, avg_enabled); |
4aa9015f | 719 | fprintf(output, "\n"); |
c04f5e5d IM |
720 | } |
721 | ||
f5b4a9c3 SE |
722 | /* |
723 | * Print out the results of a single counter: | |
724 | * does not use aggregated count in system-wide | |
725 | */ | |
13370a9b | 726 | static void print_counter(struct perf_evsel *counter, char *prefix) |
f5b4a9c3 | 727 | { |
5821522e | 728 | FILE *output = stat_config.output; |
f5b4a9c3 | 729 | u64 ena, run, val; |
410136f5 | 730 | double uval; |
f5b4a9c3 SE |
731 | int cpu; |
732 | ||
7ae92e74 | 733 | for (cpu = 0; cpu < perf_evsel__nr_cpus(counter); cpu++) { |
a6fa0038 JO |
734 | val = perf_counts(counter->counts, cpu, 0)->val; |
735 | ena = perf_counts(counter->counts, cpu, 0)->ena; | |
736 | run = perf_counts(counter->counts, cpu, 0)->run; | |
13370a9b SE |
737 | |
738 | if (prefix) | |
739 | fprintf(output, "%s", prefix); | |
740 | ||
f5b4a9c3 | 741 | if (run == 0 || ena == 0) { |
410136f5 | 742 | fprintf(output, "CPU%*d%s%*s%s", |
d7470b6a | 743 | csv_output ? 0 : -4, |
7ae92e74 | 744 | perf_evsel__cpus(counter)->map[cpu], csv_sep, |
d7470b6a | 745 | csv_output ? 0 : 18, |
2cee77c4 | 746 | counter->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED, |
410136f5 SE |
747 | csv_sep); |
748 | ||
749 | fprintf(output, "%-*s%s", | |
750 | csv_output ? 0 : unit_width, | |
751 | counter->unit, csv_sep); | |
752 | ||
753 | fprintf(output, "%*s", | |
754 | csv_output ? 0 : -25, | |
755 | perf_evsel__name(counter)); | |
f5b4a9c3 | 756 | |
023695d9 | 757 | if (counter->cgrp) |
4aa9015f SE |
758 | fprintf(output, "%s%s", |
759 | csv_sep, counter->cgrp->name); | |
023695d9 | 760 | |
d73515c0 | 761 | print_running(run, ena); |
4aa9015f | 762 | fputc('\n', output); |
f5b4a9c3 SE |
763 | continue; |
764 | } | |
765 | ||
410136f5 SE |
766 | uval = val * counter->scale; |
767 | ||
f5b4a9c3 | 768 | if (nsec_counter(counter)) |
410136f5 | 769 | nsec_printout(cpu, 0, counter, uval); |
f5b4a9c3 | 770 | else |
410136f5 | 771 | abs_printout(cpu, 0, counter, uval); |
f5b4a9c3 | 772 | |
d73515c0 | 773 | if (!csv_output) |
d7470b6a | 774 | print_noise(counter, 1.0); |
d73515c0 | 775 | print_running(run, ena); |
f5b4a9c3 | 776 | |
4aa9015f | 777 | fputc('\n', output); |
f5b4a9c3 SE |
778 | } |
779 | } | |
780 | ||
d4f63a47 JO |
781 | static void print_interval(char *prefix, struct timespec *ts) |
782 | { | |
5821522e | 783 | FILE *output = stat_config.output; |
d4f63a47 JO |
784 | static int num_print_interval; |
785 | ||
786 | sprintf(prefix, "%6lu.%09lu%s", ts->tv_sec, ts->tv_nsec, csv_sep); | |
787 | ||
788 | if (num_print_interval == 0 && !csv_output) { | |
421a50f3 | 789 | switch (stat_config.aggr_mode) { |
d4f63a47 JO |
790 | case AGGR_SOCKET: |
791 | fprintf(output, "# time socket cpus counts %*s events\n", unit_width, "unit"); | |
792 | break; | |
793 | case AGGR_CORE: | |
794 | fprintf(output, "# time core cpus counts %*s events\n", unit_width, "unit"); | |
795 | break; | |
796 | case AGGR_NONE: | |
797 | fprintf(output, "# time CPU counts %*s events\n", unit_width, "unit"); | |
798 | break; | |
32b8af82 JO |
799 | case AGGR_THREAD: |
800 | fprintf(output, "# time comm-pid counts %*s events\n", unit_width, "unit"); | |
801 | break; | |
d4f63a47 JO |
802 | case AGGR_GLOBAL: |
803 | default: | |
804 | fprintf(output, "# time counts %*s events\n", unit_width, "unit"); | |
208df99e JO |
805 | case AGGR_UNSET: |
806 | break; | |
d4f63a47 JO |
807 | } |
808 | } | |
809 | ||
810 | if (++num_print_interval == 25) | |
811 | num_print_interval = 0; | |
812 | } | |
813 | ||
814 | static void print_header(int argc, const char **argv) | |
42202dd5 | 815 | { |
5821522e | 816 | FILE *output = stat_config.output; |
69aad6f1 | 817 | int i; |
42202dd5 | 818 | |
ddcacfa0 IM |
819 | fflush(stdout); |
820 | ||
d7470b6a | 821 | if (!csv_output) { |
4aa9015f SE |
822 | fprintf(output, "\n"); |
823 | fprintf(output, " Performance counter stats for "); | |
62d3b617 DA |
824 | if (target.system_wide) |
825 | fprintf(output, "\'system wide"); | |
826 | else if (target.cpu_list) | |
827 | fprintf(output, "\'CPU(s) %s", target.cpu_list); | |
602ad878 | 828 | else if (!target__has_task(&target)) { |
4aa9015f | 829 | fprintf(output, "\'%s", argv[0]); |
d7470b6a | 830 | for (i = 1; i < argc; i++) |
4aa9015f | 831 | fprintf(output, " %s", argv[i]); |
20f946b4 NK |
832 | } else if (target.pid) |
833 | fprintf(output, "process id \'%s", target.pid); | |
d7470b6a | 834 | else |
20f946b4 | 835 | fprintf(output, "thread id \'%s", target.tid); |
44db76c8 | 836 | |
4aa9015f | 837 | fprintf(output, "\'"); |
d7470b6a | 838 | if (run_count > 1) |
4aa9015f SE |
839 | fprintf(output, " (%d runs)", run_count); |
840 | fprintf(output, ":\n\n"); | |
d7470b6a | 841 | } |
d4f63a47 JO |
842 | } |
843 | ||
844 | static void print_footer(void) | |
845 | { | |
5821522e JO |
846 | FILE *output = stat_config.output; |
847 | ||
d4f63a47 JO |
848 | if (!null_run) |
849 | fprintf(output, "\n"); | |
850 | fprintf(output, " %17.9f seconds time elapsed", | |
851 | avg_stats(&walltime_nsecs_stats)/1e9); | |
852 | if (run_count > 1) { | |
853 | fprintf(output, " "); | |
854 | print_noise_pct(stddev_stats(&walltime_nsecs_stats), | |
855 | avg_stats(&walltime_nsecs_stats)); | |
856 | } | |
857 | fprintf(output, "\n\n"); | |
858 | } | |
859 | ||
860 | static void print_counters(struct timespec *ts, int argc, const char **argv) | |
861 | { | |
ec0d3d1f | 862 | int interval = stat_config.interval; |
d4f63a47 JO |
863 | struct perf_evsel *counter; |
864 | char buf[64], *prefix = NULL; | |
865 | ||
866 | if (interval) | |
867 | print_interval(prefix = buf, ts); | |
868 | else | |
869 | print_header(argc, argv); | |
2996f5dd | 870 | |
421a50f3 | 871 | switch (stat_config.aggr_mode) { |
12c08a9f | 872 | case AGGR_CORE: |
86ee6e18 | 873 | case AGGR_SOCKET: |
d4f63a47 | 874 | print_aggr(prefix); |
86ee6e18 | 875 | break; |
32b8af82 JO |
876 | case AGGR_THREAD: |
877 | evlist__for_each(evsel_list, counter) | |
878 | print_aggr_thread(counter, prefix); | |
879 | break; | |
86ee6e18 | 880 | case AGGR_GLOBAL: |
0050f7aa | 881 | evlist__for_each(evsel_list, counter) |
d4f63a47 | 882 | print_counter_aggr(counter, prefix); |
86ee6e18 SE |
883 | break; |
884 | case AGGR_NONE: | |
0050f7aa | 885 | evlist__for_each(evsel_list, counter) |
d4f63a47 | 886 | print_counter(counter, prefix); |
86ee6e18 | 887 | break; |
208df99e | 888 | case AGGR_UNSET: |
86ee6e18 SE |
889 | default: |
890 | break; | |
f5b4a9c3 | 891 | } |
ddcacfa0 | 892 | |
d4f63a47 JO |
893 | if (!interval && !csv_output) |
894 | print_footer(); | |
895 | ||
5821522e | 896 | fflush(stat_config.output); |
ddcacfa0 IM |
897 | } |
898 | ||
f7b7c26e PZ |
899 | static volatile int signr = -1; |
900 | ||
5242519b | 901 | static void skip_signal(int signo) |
ddcacfa0 | 902 | { |
ec0d3d1f | 903 | if ((child_pid == -1) || stat_config.interval) |
60666c63 LW |
904 | done = 1; |
905 | ||
f7b7c26e | 906 | signr = signo; |
d07f0b12 SE |
907 | /* |
908 | * render child_pid harmless | |
909 | * won't send SIGTERM to a random | |
910 | * process in case of race condition | |
911 | * and fast PID recycling | |
912 | */ | |
913 | child_pid = -1; | |
f7b7c26e PZ |
914 | } |
915 | ||
916 | static void sig_atexit(void) | |
917 | { | |
d07f0b12 SE |
918 | sigset_t set, oset; |
919 | ||
920 | /* | |
921 | * avoid race condition with SIGCHLD handler | |
922 | * in skip_signal() which is modifying child_pid | |
923 | * goal is to avoid send SIGTERM to a random | |
924 | * process | |
925 | */ | |
926 | sigemptyset(&set); | |
927 | sigaddset(&set, SIGCHLD); | |
928 | sigprocmask(SIG_BLOCK, &set, &oset); | |
929 | ||
933da83a CW |
930 | if (child_pid != -1) |
931 | kill(child_pid, SIGTERM); | |
932 | ||
d07f0b12 SE |
933 | sigprocmask(SIG_SETMASK, &oset, NULL); |
934 | ||
f7b7c26e PZ |
935 | if (signr == -1) |
936 | return; | |
937 | ||
938 | signal(signr, SIG_DFL); | |
939 | kill(getpid(), signr); | |
5242519b IM |
940 | } |
941 | ||
1d037ca1 IT |
942 | static int stat__set_big_num(const struct option *opt __maybe_unused, |
943 | const char *s __maybe_unused, int unset) | |
d7470b6a SE |
944 | { |
945 | big_num_opt = unset ? 0 : 1; | |
946 | return 0; | |
947 | } | |
948 | ||
1fe7a300 JO |
949 | static int perf_stat__get_socket(struct cpu_map *map, int cpu) |
950 | { | |
951 | return cpu_map__get_socket(map, cpu, NULL); | |
952 | } | |
953 | ||
954 | static int perf_stat__get_core(struct cpu_map *map, int cpu) | |
955 | { | |
956 | return cpu_map__get_core(map, cpu, NULL); | |
957 | } | |
958 | ||
1e5a2931 JO |
959 | static int cpu_map__get_max(struct cpu_map *map) |
960 | { | |
961 | int i, max = -1; | |
962 | ||
963 | for (i = 0; i < map->nr; i++) { | |
964 | if (map->map[i] > max) | |
965 | max = map->map[i]; | |
966 | } | |
967 | ||
968 | return max; | |
969 | } | |
970 | ||
971 | static struct cpu_map *cpus_aggr_map; | |
972 | ||
973 | static int perf_stat__get_aggr(aggr_get_id_t get_id, struct cpu_map *map, int idx) | |
974 | { | |
975 | int cpu; | |
976 | ||
977 | if (idx >= map->nr) | |
978 | return -1; | |
979 | ||
980 | cpu = map->map[idx]; | |
981 | ||
982 | if (cpus_aggr_map->map[cpu] == -1) | |
983 | cpus_aggr_map->map[cpu] = get_id(map, idx); | |
984 | ||
985 | return cpus_aggr_map->map[cpu]; | |
986 | } | |
987 | ||
988 | static int perf_stat__get_socket_cached(struct cpu_map *map, int idx) | |
989 | { | |
990 | return perf_stat__get_aggr(perf_stat__get_socket, map, idx); | |
991 | } | |
992 | ||
993 | static int perf_stat__get_core_cached(struct cpu_map *map, int idx) | |
994 | { | |
995 | return perf_stat__get_aggr(perf_stat__get_core, map, idx); | |
996 | } | |
997 | ||
86ee6e18 SE |
998 | static int perf_stat_init_aggr_mode(void) |
999 | { | |
1e5a2931 JO |
1000 | int nr; |
1001 | ||
421a50f3 | 1002 | switch (stat_config.aggr_mode) { |
86ee6e18 SE |
1003 | case AGGR_SOCKET: |
1004 | if (cpu_map__build_socket_map(evsel_list->cpus, &aggr_map)) { | |
1005 | perror("cannot build socket map"); | |
1006 | return -1; | |
1007 | } | |
1e5a2931 | 1008 | aggr_get_id = perf_stat__get_socket_cached; |
86ee6e18 | 1009 | break; |
12c08a9f SE |
1010 | case AGGR_CORE: |
1011 | if (cpu_map__build_core_map(evsel_list->cpus, &aggr_map)) { | |
1012 | perror("cannot build core map"); | |
1013 | return -1; | |
1014 | } | |
1e5a2931 | 1015 | aggr_get_id = perf_stat__get_core_cached; |
12c08a9f | 1016 | break; |
86ee6e18 SE |
1017 | case AGGR_NONE: |
1018 | case AGGR_GLOBAL: | |
32b8af82 | 1019 | case AGGR_THREAD: |
208df99e | 1020 | case AGGR_UNSET: |
86ee6e18 SE |
1021 | default: |
1022 | break; | |
1023 | } | |
1e5a2931 JO |
1024 | |
1025 | /* | |
1026 | * The evsel_list->cpus is the base we operate on, | |
1027 | * taking the highest cpu number to be the size of | |
1028 | * the aggregation translate cpumap. | |
1029 | */ | |
1030 | nr = cpu_map__get_max(evsel_list->cpus); | |
1031 | cpus_aggr_map = cpu_map__empty_new(nr + 1); | |
1032 | return cpus_aggr_map ? 0 : -ENOMEM; | |
86ee6e18 SE |
1033 | } |
1034 | ||
2cba3ffb IM |
1035 | /* |
1036 | * Add default attributes, if there were no attributes specified or | |
1037 | * if -d/--detailed, -d -d or -d -d -d is used: | |
1038 | */ | |
1039 | static int add_default_attributes(void) | |
1040 | { | |
b070a547 ACM |
1041 | struct perf_event_attr default_attrs[] = { |
1042 | ||
1043 | { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_TASK_CLOCK }, | |
1044 | { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_CONTEXT_SWITCHES }, | |
1045 | { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_CPU_MIGRATIONS }, | |
1046 | { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_PAGE_FAULTS }, | |
1047 | ||
1048 | { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_CPU_CYCLES }, | |
1049 | { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_STALLED_CYCLES_FRONTEND }, | |
1050 | { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_STALLED_CYCLES_BACKEND }, | |
1051 | { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_INSTRUCTIONS }, | |
1052 | { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_BRANCH_INSTRUCTIONS }, | |
1053 | { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_BRANCH_MISSES }, | |
1054 | ||
1055 | }; | |
1056 | ||
1057 | /* | |
1058 | * Detailed stats (-d), covering the L1 and last level data caches: | |
1059 | */ | |
1060 | struct perf_event_attr detailed_attrs[] = { | |
1061 | ||
1062 | { .type = PERF_TYPE_HW_CACHE, | |
1063 | .config = | |
1064 | PERF_COUNT_HW_CACHE_L1D << 0 | | |
1065 | (PERF_COUNT_HW_CACHE_OP_READ << 8) | | |
1066 | (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, | |
1067 | ||
1068 | { .type = PERF_TYPE_HW_CACHE, | |
1069 | .config = | |
1070 | PERF_COUNT_HW_CACHE_L1D << 0 | | |
1071 | (PERF_COUNT_HW_CACHE_OP_READ << 8) | | |
1072 | (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, | |
1073 | ||
1074 | { .type = PERF_TYPE_HW_CACHE, | |
1075 | .config = | |
1076 | PERF_COUNT_HW_CACHE_LL << 0 | | |
1077 | (PERF_COUNT_HW_CACHE_OP_READ << 8) | | |
1078 | (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, | |
1079 | ||
1080 | { .type = PERF_TYPE_HW_CACHE, | |
1081 | .config = | |
1082 | PERF_COUNT_HW_CACHE_LL << 0 | | |
1083 | (PERF_COUNT_HW_CACHE_OP_READ << 8) | | |
1084 | (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, | |
1085 | }; | |
1086 | ||
1087 | /* | |
1088 | * Very detailed stats (-d -d), covering the instruction cache and the TLB caches: | |
1089 | */ | |
1090 | struct perf_event_attr very_detailed_attrs[] = { | |
1091 | ||
1092 | { .type = PERF_TYPE_HW_CACHE, | |
1093 | .config = | |
1094 | PERF_COUNT_HW_CACHE_L1I << 0 | | |
1095 | (PERF_COUNT_HW_CACHE_OP_READ << 8) | | |
1096 | (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, | |
1097 | ||
1098 | { .type = PERF_TYPE_HW_CACHE, | |
1099 | .config = | |
1100 | PERF_COUNT_HW_CACHE_L1I << 0 | | |
1101 | (PERF_COUNT_HW_CACHE_OP_READ << 8) | | |
1102 | (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, | |
1103 | ||
1104 | { .type = PERF_TYPE_HW_CACHE, | |
1105 | .config = | |
1106 | PERF_COUNT_HW_CACHE_DTLB << 0 | | |
1107 | (PERF_COUNT_HW_CACHE_OP_READ << 8) | | |
1108 | (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, | |
1109 | ||
1110 | { .type = PERF_TYPE_HW_CACHE, | |
1111 | .config = | |
1112 | PERF_COUNT_HW_CACHE_DTLB << 0 | | |
1113 | (PERF_COUNT_HW_CACHE_OP_READ << 8) | | |
1114 | (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, | |
1115 | ||
1116 | { .type = PERF_TYPE_HW_CACHE, | |
1117 | .config = | |
1118 | PERF_COUNT_HW_CACHE_ITLB << 0 | | |
1119 | (PERF_COUNT_HW_CACHE_OP_READ << 8) | | |
1120 | (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, | |
1121 | ||
1122 | { .type = PERF_TYPE_HW_CACHE, | |
1123 | .config = | |
1124 | PERF_COUNT_HW_CACHE_ITLB << 0 | | |
1125 | (PERF_COUNT_HW_CACHE_OP_READ << 8) | | |
1126 | (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, | |
1127 | ||
1128 | }; | |
1129 | ||
1130 | /* | |
1131 | * Very, very detailed stats (-d -d -d), adding prefetch events: | |
1132 | */ | |
1133 | struct perf_event_attr very_very_detailed_attrs[] = { | |
1134 | ||
1135 | { .type = PERF_TYPE_HW_CACHE, | |
1136 | .config = | |
1137 | PERF_COUNT_HW_CACHE_L1D << 0 | | |
1138 | (PERF_COUNT_HW_CACHE_OP_PREFETCH << 8) | | |
1139 | (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, | |
1140 | ||
1141 | { .type = PERF_TYPE_HW_CACHE, | |
1142 | .config = | |
1143 | PERF_COUNT_HW_CACHE_L1D << 0 | | |
1144 | (PERF_COUNT_HW_CACHE_OP_PREFETCH << 8) | | |
1145 | (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, | |
1146 | }; | |
1147 | ||
2cba3ffb IM |
1148 | /* Set attrs if no event is selected and !null_run: */ |
1149 | if (null_run) | |
1150 | return 0; | |
1151 | ||
4cabc3d1 AK |
1152 | if (transaction_run) { |
1153 | int err; | |
1154 | if (pmu_have_event("cpu", "cycles-ct") && | |
1155 | pmu_have_event("cpu", "el-start")) | |
a454742c | 1156 | err = parse_events(evsel_list, transaction_attrs, NULL); |
4cabc3d1 | 1157 | else |
a454742c JO |
1158 | err = parse_events(evsel_list, transaction_limited_attrs, NULL); |
1159 | if (err) { | |
4cabc3d1 AK |
1160 | fprintf(stderr, "Cannot set up transaction events\n"); |
1161 | return -1; | |
1162 | } | |
1163 | return 0; | |
1164 | } | |
1165 | ||
2cba3ffb | 1166 | if (!evsel_list->nr_entries) { |
79695e1b | 1167 | if (perf_evlist__add_default_attrs(evsel_list, default_attrs) < 0) |
50d08e47 | 1168 | return -1; |
2cba3ffb IM |
1169 | } |
1170 | ||
1171 | /* Detailed events get appended to the event list: */ | |
1172 | ||
1173 | if (detailed_run < 1) | |
1174 | return 0; | |
1175 | ||
1176 | /* Append detailed run extra attributes: */ | |
79695e1b | 1177 | if (perf_evlist__add_default_attrs(evsel_list, detailed_attrs) < 0) |
50d08e47 | 1178 | return -1; |
2cba3ffb IM |
1179 | |
1180 | if (detailed_run < 2) | |
1181 | return 0; | |
1182 | ||
1183 | /* Append very detailed run extra attributes: */ | |
79695e1b | 1184 | if (perf_evlist__add_default_attrs(evsel_list, very_detailed_attrs) < 0) |
50d08e47 | 1185 | return -1; |
2cba3ffb IM |
1186 | |
1187 | if (detailed_run < 3) | |
1188 | return 0; | |
1189 | ||
1190 | /* Append very, very detailed run extra attributes: */ | |
79695e1b | 1191 | return perf_evlist__add_default_attrs(evsel_list, very_very_detailed_attrs); |
2cba3ffb IM |
1192 | } |
1193 | ||
1d037ca1 | 1194 | int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused) |
5242519b | 1195 | { |
1f16c575 | 1196 | bool append_file = false; |
b070a547 ACM |
1197 | int output_fd = 0; |
1198 | const char *output_name = NULL; | |
1199 | const struct option options[] = { | |
4cabc3d1 AK |
1200 | OPT_BOOLEAN('T', "transaction", &transaction_run, |
1201 | "hardware transaction statistics"), | |
b070a547 ACM |
1202 | OPT_CALLBACK('e', "event", &evsel_list, "event", |
1203 | "event selector. use 'perf list' to list available events", | |
1204 | parse_events_option), | |
1205 | OPT_CALLBACK(0, "filter", &evsel_list, "filter", | |
1206 | "event filter", parse_filter), | |
1207 | OPT_BOOLEAN('i', "no-inherit", &no_inherit, | |
1208 | "child tasks do not inherit counters"), | |
1209 | OPT_STRING('p', "pid", &target.pid, "pid", | |
1210 | "stat events on existing process id"), | |
1211 | OPT_STRING('t', "tid", &target.tid, "tid", | |
1212 | "stat events on existing thread id"), | |
1213 | OPT_BOOLEAN('a', "all-cpus", &target.system_wide, | |
1214 | "system-wide collection from all CPUs"), | |
1215 | OPT_BOOLEAN('g', "group", &group, | |
1216 | "put the counters into a counter group"), | |
711a572e | 1217 | OPT_BOOLEAN('c', "scale", &stat_config.scale, "scale/normalize counters"), |
b070a547 ACM |
1218 | OPT_INCR('v', "verbose", &verbose, |
1219 | "be more verbose (show counter open errors, etc)"), | |
1220 | OPT_INTEGER('r', "repeat", &run_count, | |
a7e191c3 | 1221 | "repeat command and print average + stddev (max: 100, forever: 0)"), |
b070a547 ACM |
1222 | OPT_BOOLEAN('n', "null", &null_run, |
1223 | "null run - dont start any counters"), | |
1224 | OPT_INCR('d', "detailed", &detailed_run, | |
1225 | "detailed run - start a lot of events"), | |
1226 | OPT_BOOLEAN('S', "sync", &sync_run, | |
1227 | "call sync() before starting a run"), | |
48000a1a | 1228 | OPT_CALLBACK_NOOPT('B', "big-num", NULL, NULL, |
b070a547 ACM |
1229 | "print large numbers with thousands\' separators", |
1230 | stat__set_big_num), | |
1231 | OPT_STRING('C', "cpu", &target.cpu_list, "cpu", | |
1232 | "list of cpus to monitor in system-wide"), | |
421a50f3 | 1233 | OPT_SET_UINT('A', "no-aggr", &stat_config.aggr_mode, |
86ee6e18 | 1234 | "disable CPU count aggregation", AGGR_NONE), |
b070a547 ACM |
1235 | OPT_STRING('x', "field-separator", &csv_sep, "separator", |
1236 | "print counts with custom separator"), | |
1237 | OPT_CALLBACK('G', "cgroup", &evsel_list, "name", | |
1238 | "monitor event in cgroup name only", parse_cgroups), | |
1239 | OPT_STRING('o', "output", &output_name, "file", "output file name"), | |
1240 | OPT_BOOLEAN(0, "append", &append_file, "append to the output file"), | |
1241 | OPT_INTEGER(0, "log-fd", &output_fd, | |
1242 | "log output to fd, instead of stderr"), | |
1f16c575 PZ |
1243 | OPT_STRING(0, "pre", &pre_cmd, "command", |
1244 | "command to run prior to the measured command"), | |
1245 | OPT_STRING(0, "post", &post_cmd, "command", | |
1246 | "command to run after to the measured command"), | |
ec0d3d1f | 1247 | OPT_UINTEGER('I', "interval-print", &stat_config.interval, |
19afd104 | 1248 | "print counts at regular interval in ms (>= 10)"), |
421a50f3 | 1249 | OPT_SET_UINT(0, "per-socket", &stat_config.aggr_mode, |
86ee6e18 | 1250 | "aggregate counts per processor socket", AGGR_SOCKET), |
421a50f3 | 1251 | OPT_SET_UINT(0, "per-core", &stat_config.aggr_mode, |
12c08a9f | 1252 | "aggregate counts per physical processor core", AGGR_CORE), |
421a50f3 | 1253 | OPT_SET_UINT(0, "per-thread", &stat_config.aggr_mode, |
32b8af82 | 1254 | "aggregate counts per thread", AGGR_THREAD), |
41191688 AK |
1255 | OPT_UINTEGER('D', "delay", &initial_delay, |
1256 | "ms to wait before starting measurement after program start"), | |
b070a547 ACM |
1257 | OPT_END() |
1258 | }; | |
1259 | const char * const stat_usage[] = { | |
1260 | "perf stat [<options>] [<command>]", | |
1261 | NULL | |
1262 | }; | |
cc03c542 | 1263 | int status = -EINVAL, run_idx; |
4aa9015f | 1264 | const char *mode; |
5821522e | 1265 | FILE *output = stderr; |
ec0d3d1f | 1266 | unsigned int interval; |
42202dd5 | 1267 | |
5af52b51 SE |
1268 | setlocale(LC_ALL, ""); |
1269 | ||
334fe7a3 | 1270 | evsel_list = perf_evlist__new(); |
361c99a6 ACM |
1271 | if (evsel_list == NULL) |
1272 | return -ENOMEM; | |
1273 | ||
a0541234 AB |
1274 | argc = parse_options(argc, argv, options, stat_usage, |
1275 | PARSE_OPT_STOP_AT_NON_OPTION); | |
d7470b6a | 1276 | |
ec0d3d1f JO |
1277 | interval = stat_config.interval; |
1278 | ||
4aa9015f SE |
1279 | if (output_name && strcmp(output_name, "-")) |
1280 | output = NULL; | |
1281 | ||
56f3bae7 JC |
1282 | if (output_name && output_fd) { |
1283 | fprintf(stderr, "cannot use both --output and --log-fd\n"); | |
cc03c542 NK |
1284 | parse_options_usage(stat_usage, options, "o", 1); |
1285 | parse_options_usage(NULL, options, "log-fd", 0); | |
1286 | goto out; | |
56f3bae7 | 1287 | } |
fc3e4d07 SE |
1288 | |
1289 | if (output_fd < 0) { | |
1290 | fprintf(stderr, "argument to --log-fd must be a > 0\n"); | |
cc03c542 NK |
1291 | parse_options_usage(stat_usage, options, "log-fd", 0); |
1292 | goto out; | |
fc3e4d07 SE |
1293 | } |
1294 | ||
4aa9015f SE |
1295 | if (!output) { |
1296 | struct timespec tm; | |
1297 | mode = append_file ? "a" : "w"; | |
1298 | ||
1299 | output = fopen(output_name, mode); | |
1300 | if (!output) { | |
1301 | perror("failed to create output file"); | |
fceda7fe | 1302 | return -1; |
4aa9015f SE |
1303 | } |
1304 | clock_gettime(CLOCK_REALTIME, &tm); | |
1305 | fprintf(output, "# started on %s\n", ctime(&tm.tv_sec)); | |
fc3e4d07 | 1306 | } else if (output_fd > 0) { |
56f3bae7 JC |
1307 | mode = append_file ? "a" : "w"; |
1308 | output = fdopen(output_fd, mode); | |
1309 | if (!output) { | |
1310 | perror("Failed opening logfd"); | |
1311 | return -errno; | |
1312 | } | |
4aa9015f SE |
1313 | } |
1314 | ||
5821522e JO |
1315 | stat_config.output = output; |
1316 | ||
d4ffd04d | 1317 | if (csv_sep) { |
d7470b6a | 1318 | csv_output = true; |
d4ffd04d JC |
1319 | if (!strcmp(csv_sep, "\\t")) |
1320 | csv_sep = "\t"; | |
1321 | } else | |
d7470b6a SE |
1322 | csv_sep = DEFAULT_SEPARATOR; |
1323 | ||
1324 | /* | |
1325 | * let the spreadsheet do the pretty-printing | |
1326 | */ | |
1327 | if (csv_output) { | |
61a9f324 | 1328 | /* User explicitly passed -B? */ |
d7470b6a SE |
1329 | if (big_num_opt == 1) { |
1330 | fprintf(stderr, "-B option not supported with -x\n"); | |
cc03c542 NK |
1331 | parse_options_usage(stat_usage, options, "B", 1); |
1332 | parse_options_usage(NULL, options, "x", 1); | |
1333 | goto out; | |
d7470b6a SE |
1334 | } else /* Nope, so disable big number formatting */ |
1335 | big_num = false; | |
1336 | } else if (big_num_opt == 0) /* User passed --no-big-num */ | |
1337 | big_num = false; | |
1338 | ||
602ad878 | 1339 | if (!argc && target__none(&target)) |
5242519b | 1340 | usage_with_options(stat_usage, options); |
ac3063bd | 1341 | |
a7e191c3 | 1342 | if (run_count < 0) { |
cc03c542 NK |
1343 | pr_err("Run count must be a positive number\n"); |
1344 | parse_options_usage(stat_usage, options, "r", 1); | |
1345 | goto out; | |
a7e191c3 FD |
1346 | } else if (run_count == 0) { |
1347 | forever = true; | |
1348 | run_count = 1; | |
1349 | } | |
ddcacfa0 | 1350 | |
421a50f3 | 1351 | if ((stat_config.aggr_mode == AGGR_THREAD) && !target__has_task(&target)) { |
32b8af82 JO |
1352 | fprintf(stderr, "The --per-thread option is only available " |
1353 | "when monitoring via -p -t options.\n"); | |
1354 | parse_options_usage(NULL, options, "p", 1); | |
1355 | parse_options_usage(NULL, options, "t", 1); | |
1356 | goto out; | |
1357 | } | |
1358 | ||
1359 | /* | |
1360 | * no_aggr, cgroup are for system-wide only | |
1361 | * --per-thread is aggregated per thread, we dont mix it with cpu mode | |
1362 | */ | |
421a50f3 JO |
1363 | if (((stat_config.aggr_mode != AGGR_GLOBAL && |
1364 | stat_config.aggr_mode != AGGR_THREAD) || nr_cgroups) && | |
602ad878 | 1365 | !target__has_cpu(&target)) { |
023695d9 SE |
1366 | fprintf(stderr, "both cgroup and no-aggregation " |
1367 | "modes only available in system-wide mode\n"); | |
1368 | ||
cc03c542 NK |
1369 | parse_options_usage(stat_usage, options, "G", 1); |
1370 | parse_options_usage(NULL, options, "A", 1); | |
1371 | parse_options_usage(NULL, options, "a", 1); | |
1372 | goto out; | |
d7e7a451 SE |
1373 | } |
1374 | ||
2cba3ffb IM |
1375 | if (add_default_attributes()) |
1376 | goto out; | |
ddcacfa0 | 1377 | |
602ad878 | 1378 | target__validate(&target); |
5c98d466 | 1379 | |
77a6f014 | 1380 | if (perf_evlist__create_maps(evsel_list, &target) < 0) { |
602ad878 | 1381 | if (target__has_task(&target)) { |
77a6f014 | 1382 | pr_err("Problems finding threads of monitor\n"); |
cc03c542 NK |
1383 | parse_options_usage(stat_usage, options, "p", 1); |
1384 | parse_options_usage(NULL, options, "t", 1); | |
602ad878 | 1385 | } else if (target__has_cpu(&target)) { |
77a6f014 | 1386 | perror("failed to parse CPUs map"); |
cc03c542 NK |
1387 | parse_options_usage(stat_usage, options, "C", 1); |
1388 | parse_options_usage(NULL, options, "a", 1); | |
1389 | } | |
1390 | goto out; | |
60d567e2 | 1391 | } |
32b8af82 JO |
1392 | |
1393 | /* | |
1394 | * Initialize thread_map with comm names, | |
1395 | * so we could print it out on output. | |
1396 | */ | |
421a50f3 | 1397 | if (stat_config.aggr_mode == AGGR_THREAD) |
32b8af82 JO |
1398 | thread_map__read_comms(evsel_list->threads); |
1399 | ||
13370a9b | 1400 | if (interval && interval < 100) { |
19afd104 KL |
1401 | if (interval < 10) { |
1402 | pr_err("print interval must be >= 10ms\n"); | |
1403 | parse_options_usage(stat_usage, options, "I", 1); | |
1404 | goto out; | |
1405 | } else | |
1406 | pr_warning("print interval < 100ms. " | |
1407 | "The overhead percentage could be high in some cases. " | |
1408 | "Please proceed with caution.\n"); | |
13370a9b | 1409 | } |
c45c6ea2 | 1410 | |
d134ffb9 | 1411 | if (perf_evlist__alloc_stats(evsel_list, interval)) |
03ad9747 | 1412 | goto out; |
d6d901c2 | 1413 | |
86ee6e18 | 1414 | if (perf_stat_init_aggr_mode()) |
03ad9747 | 1415 | goto out; |
86ee6e18 | 1416 | |
58d7e993 IM |
1417 | /* |
1418 | * We dont want to block the signals - that would cause | |
1419 | * child tasks to inherit that and Ctrl-C would not work. | |
1420 | * What we want is for Ctrl-C to work in the exec()-ed | |
1421 | * task, but being ignored by perf stat itself: | |
1422 | */ | |
f7b7c26e | 1423 | atexit(sig_atexit); |
a7e191c3 FD |
1424 | if (!forever) |
1425 | signal(SIGINT, skip_signal); | |
13370a9b | 1426 | signal(SIGCHLD, skip_signal); |
58d7e993 IM |
1427 | signal(SIGALRM, skip_signal); |
1428 | signal(SIGABRT, skip_signal); | |
1429 | ||
42202dd5 | 1430 | status = 0; |
a7e191c3 | 1431 | for (run_idx = 0; forever || run_idx < run_count; run_idx++) { |
42202dd5 | 1432 | if (run_count != 1 && verbose) |
4aa9015f SE |
1433 | fprintf(output, "[ perf stat: executing run #%d ... ]\n", |
1434 | run_idx + 1); | |
f9cef0a9 | 1435 | |
42202dd5 | 1436 | status = run_perf_stat(argc, argv); |
a7e191c3 | 1437 | if (forever && status != -1) { |
d4f63a47 | 1438 | print_counters(NULL, argc, argv); |
254ecbc7 | 1439 | perf_stat__reset_stats(); |
a7e191c3 | 1440 | } |
42202dd5 IM |
1441 | } |
1442 | ||
a7e191c3 | 1443 | if (!forever && status != -1 && !interval) |
d4f63a47 | 1444 | print_counters(NULL, argc, argv); |
d134ffb9 ACM |
1445 | |
1446 | perf_evlist__free_stats(evsel_list); | |
0015e2e1 ACM |
1447 | out: |
1448 | perf_evlist__delete(evsel_list); | |
42202dd5 | 1449 | return status; |
ddcacfa0 | 1450 | } |