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Commit | Line | Data |
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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; |
e0547311 JO |
125 | static bool append_file; |
126 | static const char *output_name; | |
127 | static int output_fd; | |
5af52b51 | 128 | |
60666c63 LW |
129 | static volatile int done = 0; |
130 | ||
421a50f3 JO |
131 | static struct perf_stat_config stat_config = { |
132 | .aggr_mode = AGGR_GLOBAL, | |
711a572e | 133 | .scale = true, |
421a50f3 JO |
134 | }; |
135 | ||
13370a9b SE |
136 | static inline void diff_timespec(struct timespec *r, struct timespec *a, |
137 | struct timespec *b) | |
138 | { | |
139 | r->tv_sec = a->tv_sec - b->tv_sec; | |
140 | if (a->tv_nsec < b->tv_nsec) { | |
141 | r->tv_nsec = a->tv_nsec + 1000000000L - b->tv_nsec; | |
142 | r->tv_sec--; | |
143 | } else { | |
144 | r->tv_nsec = a->tv_nsec - b->tv_nsec ; | |
145 | } | |
146 | } | |
147 | ||
254ecbc7 JO |
148 | static void perf_stat__reset_stats(void) |
149 | { | |
150 | perf_evlist__reset_stats(evsel_list); | |
f87027b9 | 151 | perf_stat__reset_shadow_stats(); |
1eda3b21 JO |
152 | } |
153 | ||
cac21425 | 154 | static int create_perf_stat_counter(struct perf_evsel *evsel) |
ddcacfa0 | 155 | { |
69aad6f1 | 156 | struct perf_event_attr *attr = &evsel->attr; |
727ab04e | 157 | |
711a572e | 158 | if (stat_config.scale) |
a21ca2ca IM |
159 | attr->read_format = PERF_FORMAT_TOTAL_TIME_ENABLED | |
160 | PERF_FORMAT_TOTAL_TIME_RUNNING; | |
ddcacfa0 | 161 | |
5d2cd909 ACM |
162 | attr->inherit = !no_inherit; |
163 | ||
6acd8e92 JO |
164 | /* |
165 | * Some events get initialized with sample_(period/type) set, | |
166 | * like tracepoints. Clear it up for counting. | |
167 | */ | |
168 | attr->sample_period = 0; | |
169 | attr->sample_type = 0; | |
170 | ||
602ad878 | 171 | if (target__has_cpu(&target)) |
594ac61a | 172 | return perf_evsel__open_per_cpu(evsel, perf_evsel__cpus(evsel)); |
5622c07b | 173 | |
602ad878 | 174 | if (!target__has_task(&target) && perf_evsel__is_group_leader(evsel)) { |
48290609 | 175 | attr->disabled = 1; |
41191688 AK |
176 | if (!initial_delay) |
177 | attr->enable_on_exec = 1; | |
ddcacfa0 | 178 | } |
084ab9f8 | 179 | |
594ac61a | 180 | return perf_evsel__open_per_thread(evsel, evsel_list->threads); |
ddcacfa0 IM |
181 | } |
182 | ||
c04f5e5d IM |
183 | /* |
184 | * Does the counter have nsecs as a unit? | |
185 | */ | |
daec78a0 | 186 | static inline int nsec_counter(struct perf_evsel *evsel) |
c04f5e5d | 187 | { |
daec78a0 ACM |
188 | if (perf_evsel__match(evsel, SOFTWARE, SW_CPU_CLOCK) || |
189 | perf_evsel__match(evsel, SOFTWARE, SW_TASK_CLOCK)) | |
c04f5e5d IM |
190 | return 1; |
191 | ||
192 | return 0; | |
193 | } | |
194 | ||
f5b4a9c3 SE |
195 | /* |
196 | * Read out the results of a single counter: | |
197 | * do not aggregate counts across CPUs in system-wide mode | |
198 | */ | |
c52b12ed | 199 | static int read_counter(struct perf_evsel *counter) |
f5b4a9c3 | 200 | { |
9bf1a529 JO |
201 | int nthreads = thread_map__nr(evsel_list->threads); |
202 | int ncpus = perf_evsel__nr_cpus(counter); | |
203 | int cpu, thread; | |
f5b4a9c3 | 204 | |
3b4331d9 SP |
205 | if (!counter->supported) |
206 | return -ENOENT; | |
207 | ||
9bf1a529 JO |
208 | if (counter->system_wide) |
209 | nthreads = 1; | |
210 | ||
211 | for (thread = 0; thread < nthreads; thread++) { | |
212 | for (cpu = 0; cpu < ncpus; cpu++) { | |
3b3eb044 JO |
213 | struct perf_counts_values *count; |
214 | ||
215 | count = perf_counts(counter->counts, cpu, thread); | |
216 | if (perf_evsel__read(counter, cpu, thread, count)) | |
9bf1a529 JO |
217 | return -1; |
218 | } | |
f5b4a9c3 | 219 | } |
c52b12ed ACM |
220 | |
221 | return 0; | |
2996f5dd IM |
222 | } |
223 | ||
5fc472a6 | 224 | static void read_counters(bool close_counters) |
13370a9b | 225 | { |
13370a9b | 226 | struct perf_evsel *counter; |
13370a9b | 227 | |
106a94a0 | 228 | evlist__for_each(evsel_list, counter) { |
3b3eb044 | 229 | if (read_counter(counter)) |
245bad8e | 230 | pr_debug("failed to read counter %s\n", counter->name); |
3b3eb044 | 231 | |
f80010eb | 232 | if (perf_stat_process_counter(&stat_config, counter)) |
3b3eb044 | 233 | pr_warning("failed to process counter %s\n", counter->name); |
106a94a0 | 234 | |
5fc472a6 | 235 | if (close_counters) { |
106a94a0 JO |
236 | perf_evsel__close_fd(counter, perf_evsel__nr_cpus(counter), |
237 | thread_map__nr(evsel_list->threads)); | |
13370a9b SE |
238 | } |
239 | } | |
106a94a0 JO |
240 | } |
241 | ||
ba411a95 | 242 | static void process_interval(void) |
106a94a0 | 243 | { |
106a94a0 | 244 | struct timespec ts, rs; |
106a94a0 JO |
245 | |
246 | read_counters(false); | |
86ee6e18 | 247 | |
13370a9b SE |
248 | clock_gettime(CLOCK_MONOTONIC, &ts); |
249 | diff_timespec(&rs, &ts, &ref_time); | |
13370a9b | 250 | |
d4f63a47 | 251 | print_counters(&rs, 0, NULL); |
13370a9b SE |
252 | } |
253 | ||
41191688 AK |
254 | static void handle_initial_delay(void) |
255 | { | |
256 | struct perf_evsel *counter; | |
257 | ||
258 | if (initial_delay) { | |
41191688 | 259 | usleep(initial_delay * 1000); |
0050f7aa | 260 | evlist__for_each(evsel_list, counter) |
5cd95fc3 | 261 | perf_evsel__enable(counter); |
41191688 AK |
262 | } |
263 | } | |
264 | ||
f33cbe72 | 265 | static volatile int workload_exec_errno; |
6af206fd ACM |
266 | |
267 | /* | |
268 | * perf_evlist__prepare_workload will send a SIGUSR1 | |
269 | * if the fork fails, since we asked by setting its | |
270 | * want_signal to true. | |
271 | */ | |
f33cbe72 ACM |
272 | static void workload_exec_failed_signal(int signo __maybe_unused, siginfo_t *info, |
273 | void *ucontext __maybe_unused) | |
6af206fd | 274 | { |
f33cbe72 | 275 | workload_exec_errno = info->si_value.sival_int; |
6af206fd ACM |
276 | } |
277 | ||
acf28922 | 278 | static int __run_perf_stat(int argc, const char **argv) |
42202dd5 | 279 | { |
ec0d3d1f | 280 | int interval = stat_config.interval; |
56e52e85 | 281 | char msg[512]; |
42202dd5 | 282 | unsigned long long t0, t1; |
cac21425 | 283 | struct perf_evsel *counter; |
13370a9b | 284 | struct timespec ts; |
410136f5 | 285 | size_t l; |
42202dd5 | 286 | int status = 0; |
6be2850e | 287 | const bool forks = (argc > 0); |
42202dd5 | 288 | |
13370a9b SE |
289 | if (interval) { |
290 | ts.tv_sec = interval / 1000; | |
291 | ts.tv_nsec = (interval % 1000) * 1000000; | |
292 | } else { | |
293 | ts.tv_sec = 1; | |
294 | ts.tv_nsec = 0; | |
295 | } | |
296 | ||
60666c63 | 297 | if (forks) { |
735f7e0b ACM |
298 | if (perf_evlist__prepare_workload(evsel_list, &target, argv, false, |
299 | workload_exec_failed_signal) < 0) { | |
acf28922 NK |
300 | perror("failed to prepare workload"); |
301 | return -1; | |
60666c63 | 302 | } |
d20a47e7 | 303 | child_pid = evsel_list->workload.pid; |
051ae7f7 PM |
304 | } |
305 | ||
6a4bb04c | 306 | if (group) |
63dab225 | 307 | perf_evlist__set_leader(evsel_list); |
6a4bb04c | 308 | |
0050f7aa | 309 | evlist__for_each(evsel_list, counter) { |
cac21425 | 310 | if (create_perf_stat_counter(counter) < 0) { |
979987a5 DA |
311 | /* |
312 | * PPC returns ENXIO for HW counters until 2.6.37 | |
313 | * (behavior changed with commit b0a873e). | |
314 | */ | |
38f6ae1e | 315 | if (errno == EINVAL || errno == ENOSYS || |
979987a5 DA |
316 | errno == ENOENT || errno == EOPNOTSUPP || |
317 | errno == ENXIO) { | |
c63ca0c0 DA |
318 | if (verbose) |
319 | ui__warning("%s event is not supported by the kernel.\n", | |
7289f83c | 320 | perf_evsel__name(counter)); |
2cee77c4 | 321 | counter->supported = false; |
cb5ef600 KL |
322 | |
323 | if ((counter->leader != counter) || | |
324 | !(counter->leader->nr_members > 1)) | |
325 | continue; | |
c63ca0c0 | 326 | } |
ede70290 | 327 | |
56e52e85 ACM |
328 | perf_evsel__open_strerror(counter, &target, |
329 | errno, msg, sizeof(msg)); | |
330 | ui__error("%s\n", msg); | |
331 | ||
48290609 ACM |
332 | if (child_pid != -1) |
333 | kill(child_pid, SIGTERM); | |
fceda7fe | 334 | |
48290609 ACM |
335 | return -1; |
336 | } | |
2cee77c4 | 337 | counter->supported = true; |
410136f5 SE |
338 | |
339 | l = strlen(counter->unit); | |
340 | if (l > unit_width) | |
341 | unit_width = l; | |
084ab9f8 | 342 | } |
42202dd5 | 343 | |
23d4aad4 ACM |
344 | if (perf_evlist__apply_filters(evsel_list, &counter)) { |
345 | error("failed to set filter \"%s\" on event %s with %d (%s)\n", | |
346 | counter->filter, perf_evsel__name(counter), errno, | |
759e612b | 347 | strerror_r(errno, msg, sizeof(msg))); |
cfd748ae FW |
348 | return -1; |
349 | } | |
350 | ||
42202dd5 IM |
351 | /* |
352 | * Enable counters and exec the command: | |
353 | */ | |
354 | t0 = rdclock(); | |
13370a9b | 355 | clock_gettime(CLOCK_MONOTONIC, &ref_time); |
42202dd5 | 356 | |
60666c63 | 357 | if (forks) { |
acf28922 | 358 | perf_evlist__start_workload(evsel_list); |
41191688 | 359 | handle_initial_delay(); |
acf28922 | 360 | |
13370a9b SE |
361 | if (interval) { |
362 | while (!waitpid(child_pid, &status, WNOHANG)) { | |
363 | nanosleep(&ts, NULL); | |
ba411a95 | 364 | process_interval(); |
13370a9b SE |
365 | } |
366 | } | |
60666c63 | 367 | wait(&status); |
6af206fd | 368 | |
f33cbe72 ACM |
369 | if (workload_exec_errno) { |
370 | const char *emsg = strerror_r(workload_exec_errno, msg, sizeof(msg)); | |
371 | pr_err("Workload failed: %s\n", emsg); | |
6af206fd | 372 | return -1; |
f33cbe72 | 373 | } |
6af206fd | 374 | |
33e49ea7 AK |
375 | if (WIFSIGNALED(status)) |
376 | psignal(WTERMSIG(status), argv[0]); | |
60666c63 | 377 | } else { |
41191688 | 378 | handle_initial_delay(); |
13370a9b SE |
379 | while (!done) { |
380 | nanosleep(&ts, NULL); | |
381 | if (interval) | |
ba411a95 | 382 | process_interval(); |
13370a9b | 383 | } |
60666c63 | 384 | } |
42202dd5 | 385 | |
42202dd5 IM |
386 | t1 = rdclock(); |
387 | ||
9e9772c4 | 388 | update_stats(&walltime_nsecs_stats, t1 - t0); |
42202dd5 | 389 | |
106a94a0 | 390 | read_counters(true); |
c52b12ed | 391 | |
42202dd5 IM |
392 | return WEXITSTATUS(status); |
393 | } | |
394 | ||
41cde476 | 395 | static int run_perf_stat(int argc, const char **argv) |
1f16c575 PZ |
396 | { |
397 | int ret; | |
398 | ||
399 | if (pre_cmd) { | |
400 | ret = system(pre_cmd); | |
401 | if (ret) | |
402 | return ret; | |
403 | } | |
404 | ||
405 | if (sync_run) | |
406 | sync(); | |
407 | ||
408 | ret = __run_perf_stat(argc, argv); | |
409 | if (ret) | |
410 | return ret; | |
411 | ||
412 | if (post_cmd) { | |
413 | ret = system(post_cmd); | |
414 | if (ret) | |
415 | return ret; | |
416 | } | |
417 | ||
418 | return ret; | |
419 | } | |
420 | ||
d73515c0 AK |
421 | static void print_running(u64 run, u64 ena) |
422 | { | |
423 | if (csv_output) { | |
5821522e | 424 | fprintf(stat_config.output, "%s%" PRIu64 "%s%.2f", |
d73515c0 AK |
425 | csv_sep, |
426 | run, | |
427 | csv_sep, | |
428 | ena ? 100.0 * run / ena : 100.0); | |
429 | } else if (run != ena) { | |
5821522e | 430 | fprintf(stat_config.output, " (%.2f%%)", 100.0 * run / ena); |
d73515c0 AK |
431 | } |
432 | } | |
433 | ||
f99844cb IM |
434 | static void print_noise_pct(double total, double avg) |
435 | { | |
0007ecea | 436 | double pct = rel_stddev_stats(total, avg); |
f99844cb | 437 | |
3ae9a34d | 438 | if (csv_output) |
5821522e | 439 | fprintf(stat_config.output, "%s%.2f%%", csv_sep, pct); |
a1bca6cc | 440 | else if (pct) |
5821522e | 441 | fprintf(stat_config.output, " ( +-%6.2f%% )", pct); |
f99844cb IM |
442 | } |
443 | ||
69aad6f1 | 444 | static void print_noise(struct perf_evsel *evsel, double avg) |
42202dd5 | 445 | { |
581cc8a2 | 446 | struct perf_stat_evsel *ps; |
69aad6f1 | 447 | |
849abde9 PZ |
448 | if (run_count == 1) |
449 | return; | |
450 | ||
69aad6f1 | 451 | ps = evsel->priv; |
f99844cb | 452 | print_noise_pct(stddev_stats(&ps->res_stats[0]), avg); |
42202dd5 IM |
453 | } |
454 | ||
12c08a9f | 455 | static void aggr_printout(struct perf_evsel *evsel, int id, int nr) |
44175b6f | 456 | { |
421a50f3 | 457 | switch (stat_config.aggr_mode) { |
12c08a9f | 458 | case AGGR_CORE: |
5821522e | 459 | fprintf(stat_config.output, "S%d-C%*d%s%*d%s", |
12c08a9f SE |
460 | cpu_map__id_to_socket(id), |
461 | csv_output ? 0 : -8, | |
462 | cpu_map__id_to_cpu(id), | |
463 | csv_sep, | |
464 | csv_output ? 0 : 4, | |
465 | nr, | |
466 | csv_sep); | |
467 | break; | |
86ee6e18 | 468 | case AGGR_SOCKET: |
5821522e | 469 | fprintf(stat_config.output, "S%*d%s%*d%s", |
d7e7a451 | 470 | csv_output ? 0 : -5, |
12c08a9f | 471 | id, |
d7e7a451 SE |
472 | csv_sep, |
473 | csv_output ? 0 : 4, | |
474 | nr, | |
475 | csv_sep); | |
86ee6e18 SE |
476 | break; |
477 | case AGGR_NONE: | |
5821522e | 478 | fprintf(stat_config.output, "CPU%*d%s", |
d7470b6a | 479 | csv_output ? 0 : -4, |
12c08a9f | 480 | perf_evsel__cpus(evsel)->map[id], csv_sep); |
86ee6e18 | 481 | break; |
32b8af82 | 482 | case AGGR_THREAD: |
5821522e | 483 | fprintf(stat_config.output, "%*s-%*d%s", |
32b8af82 JO |
484 | csv_output ? 0 : 16, |
485 | thread_map__comm(evsel->threads, id), | |
486 | csv_output ? 0 : -8, | |
487 | thread_map__pid(evsel->threads, id), | |
488 | csv_sep); | |
489 | break; | |
86ee6e18 | 490 | case AGGR_GLOBAL: |
208df99e | 491 | case AGGR_UNSET: |
86ee6e18 SE |
492 | default: |
493 | break; | |
494 | } | |
495 | } | |
496 | ||
da88c7f7 | 497 | static void nsec_printout(int id, int nr, struct perf_evsel *evsel, double avg) |
86ee6e18 | 498 | { |
5821522e | 499 | FILE *output = stat_config.output; |
86ee6e18 | 500 | double msecs = avg / 1e6; |
410136f5 | 501 | const char *fmt_v, *fmt_n; |
4bbe5a61 | 502 | char name[25]; |
86ee6e18 | 503 | |
410136f5 SE |
504 | fmt_v = csv_output ? "%.6f%s" : "%18.6f%s"; |
505 | fmt_n = csv_output ? "%s" : "%-25s"; | |
506 | ||
da88c7f7 | 507 | aggr_printout(evsel, id, nr); |
d7470b6a | 508 | |
4bbe5a61 DA |
509 | scnprintf(name, sizeof(name), "%s%s", |
510 | perf_evsel__name(evsel), csv_output ? "" : " (msec)"); | |
410136f5 SE |
511 | |
512 | fprintf(output, fmt_v, msecs, csv_sep); | |
513 | ||
514 | if (csv_output) | |
515 | fprintf(output, "%s%s", evsel->unit, csv_sep); | |
516 | else | |
517 | fprintf(output, "%-*s%s", unit_width, evsel->unit, csv_sep); | |
518 | ||
519 | fprintf(output, fmt_n, name); | |
d7470b6a | 520 | |
023695d9 | 521 | if (evsel->cgrp) |
4aa9015f | 522 | fprintf(output, "%s%s", csv_sep, evsel->cgrp->name); |
44175b6f IM |
523 | } |
524 | ||
556b1fb7 JO |
525 | static void abs_printout(int id, int nr, struct perf_evsel *evsel, double avg) |
526 | { | |
5821522e | 527 | FILE *output = stat_config.output; |
556b1fb7 JO |
528 | double sc = evsel->scale; |
529 | const char *fmt; | |
556b1fb7 JO |
530 | |
531 | if (csv_output) { | |
532 | fmt = sc != 1.0 ? "%.2f%s" : "%.0f%s"; | |
533 | } else { | |
534 | if (big_num) | |
535 | fmt = sc != 1.0 ? "%'18.2f%s" : "%'18.0f%s"; | |
536 | else | |
537 | fmt = sc != 1.0 ? "%18.2f%s" : "%18.0f%s"; | |
538 | } | |
539 | ||
540 | aggr_printout(evsel, id, nr); | |
541 | ||
556b1fb7 JO |
542 | fprintf(output, fmt, avg, csv_sep); |
543 | ||
544 | if (evsel->unit) | |
545 | fprintf(output, "%-*s%s", | |
546 | csv_output ? 0 : unit_width, | |
547 | evsel->unit, csv_sep); | |
548 | ||
549 | fprintf(output, "%-*s", csv_output ? 0 : 25, perf_evsel__name(evsel)); | |
550 | ||
551 | if (evsel->cgrp) | |
552 | fprintf(output, "%s%s", csv_sep, evsel->cgrp->name); | |
eedfcb4b | 553 | } |
556b1fb7 | 554 | |
eedfcb4b AK |
555 | static void printout(int id, int nr, struct perf_evsel *counter, double uval) |
556 | { | |
557 | int cpu = cpu_map__id_to_cpu(id); | |
558 | ||
559 | if (stat_config.aggr_mode == AGGR_GLOBAL) | |
560 | cpu = 0; | |
561 | ||
562 | if (nsec_counter(counter)) | |
563 | nsec_printout(id, nr, counter, uval); | |
564 | else | |
565 | abs_printout(id, nr, counter, uval); | |
556b1fb7 | 566 | |
eedfcb4b AK |
567 | if (!csv_output && !stat_config.interval) |
568 | perf_stat__print_shadow_stats(stat_config.output, counter, | |
569 | uval, cpu, | |
570 | stat_config.aggr_mode); | |
556b1fb7 JO |
571 | } |
572 | ||
86ee6e18 | 573 | static void print_aggr(char *prefix) |
d7e7a451 | 574 | { |
5821522e | 575 | FILE *output = stat_config.output; |
d7e7a451 | 576 | struct perf_evsel *counter; |
601083cf | 577 | int cpu, s, s2, id, nr; |
410136f5 | 578 | double uval; |
d7e7a451 | 579 | u64 ena, run, val; |
d7e7a451 | 580 | |
86ee6e18 | 581 | if (!(aggr_map || aggr_get_id)) |
d7e7a451 SE |
582 | return; |
583 | ||
86ee6e18 SE |
584 | for (s = 0; s < aggr_map->nr; s++) { |
585 | id = aggr_map->map[s]; | |
0050f7aa | 586 | evlist__for_each(evsel_list, counter) { |
d7e7a451 SE |
587 | val = ena = run = 0; |
588 | nr = 0; | |
589 | for (cpu = 0; cpu < perf_evsel__nr_cpus(counter); cpu++) { | |
601083cf | 590 | s2 = aggr_get_id(perf_evsel__cpus(counter), cpu); |
86ee6e18 | 591 | if (s2 != id) |
d7e7a451 | 592 | continue; |
a6fa0038 JO |
593 | val += perf_counts(counter->counts, cpu, 0)->val; |
594 | ena += perf_counts(counter->counts, cpu, 0)->ena; | |
595 | run += perf_counts(counter->counts, cpu, 0)->run; | |
d7e7a451 SE |
596 | nr++; |
597 | } | |
598 | if (prefix) | |
599 | fprintf(output, "%s", prefix); | |
600 | ||
601 | if (run == 0 || ena == 0) { | |
582ec082 | 602 | aggr_printout(counter, id, nr); |
86ee6e18 | 603 | |
410136f5 | 604 | fprintf(output, "%*s%s", |
d7e7a451 SE |
605 | csv_output ? 0 : 18, |
606 | counter->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED, | |
410136f5 SE |
607 | csv_sep); |
608 | ||
609 | fprintf(output, "%-*s%s", | |
610 | csv_output ? 0 : unit_width, | |
611 | counter->unit, csv_sep); | |
612 | ||
613 | fprintf(output, "%*s", | |
614 | csv_output ? 0 : -25, | |
d7e7a451 | 615 | perf_evsel__name(counter)); |
86ee6e18 | 616 | |
d7e7a451 SE |
617 | if (counter->cgrp) |
618 | fprintf(output, "%s%s", | |
619 | csv_sep, counter->cgrp->name); | |
620 | ||
d73515c0 | 621 | print_running(run, ena); |
d7e7a451 SE |
622 | fputc('\n', output); |
623 | continue; | |
624 | } | |
410136f5 | 625 | uval = val * counter->scale; |
eedfcb4b | 626 | printout(id, nr, counter, uval); |
d73515c0 | 627 | if (!csv_output) |
d7e7a451 SE |
628 | print_noise(counter, 1.0); |
629 | ||
d73515c0 | 630 | print_running(run, ena); |
d7e7a451 SE |
631 | fputc('\n', output); |
632 | } | |
633 | } | |
634 | } | |
635 | ||
32b8af82 JO |
636 | static void print_aggr_thread(struct perf_evsel *counter, char *prefix) |
637 | { | |
5821522e | 638 | FILE *output = stat_config.output; |
32b8af82 JO |
639 | int nthreads = thread_map__nr(counter->threads); |
640 | int ncpus = cpu_map__nr(counter->cpus); | |
641 | int cpu, thread; | |
642 | double uval; | |
643 | ||
644 | for (thread = 0; thread < nthreads; thread++) { | |
645 | u64 ena = 0, run = 0, val = 0; | |
646 | ||
647 | for (cpu = 0; cpu < ncpus; cpu++) { | |
648 | val += perf_counts(counter->counts, cpu, thread)->val; | |
649 | ena += perf_counts(counter->counts, cpu, thread)->ena; | |
650 | run += perf_counts(counter->counts, cpu, thread)->run; | |
651 | } | |
652 | ||
653 | if (prefix) | |
654 | fprintf(output, "%s", prefix); | |
655 | ||
656 | uval = val * counter->scale; | |
eedfcb4b | 657 | printout(thread, 0, counter, uval); |
32b8af82 JO |
658 | |
659 | if (!csv_output) | |
660 | print_noise(counter, 1.0); | |
661 | ||
662 | print_running(run, ena); | |
663 | fputc('\n', output); | |
664 | } | |
665 | } | |
666 | ||
2996f5dd IM |
667 | /* |
668 | * Print out the results of a single counter: | |
f5b4a9c3 | 669 | * aggregated counts in system-wide mode |
2996f5dd | 670 | */ |
13370a9b | 671 | static void print_counter_aggr(struct perf_evsel *counter, char *prefix) |
2996f5dd | 672 | { |
5821522e | 673 | FILE *output = stat_config.output; |
581cc8a2 | 674 | struct perf_stat_evsel *ps = counter->priv; |
69aad6f1 | 675 | double avg = avg_stats(&ps->res_stats[0]); |
c52b12ed | 676 | int scaled = counter->counts->scaled; |
410136f5 | 677 | double uval; |
d73515c0 AK |
678 | double avg_enabled, avg_running; |
679 | ||
680 | avg_enabled = avg_stats(&ps->res_stats[1]); | |
681 | avg_running = avg_stats(&ps->res_stats[2]); | |
2996f5dd | 682 | |
13370a9b SE |
683 | if (prefix) |
684 | fprintf(output, "%s", prefix); | |
685 | ||
3b4331d9 | 686 | if (scaled == -1 || !counter->supported) { |
410136f5 | 687 | fprintf(output, "%*s%s", |
d7470b6a | 688 | csv_output ? 0 : 18, |
2cee77c4 | 689 | counter->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED, |
410136f5 SE |
690 | csv_sep); |
691 | fprintf(output, "%-*s%s", | |
692 | csv_output ? 0 : unit_width, | |
693 | counter->unit, csv_sep); | |
694 | fprintf(output, "%*s", | |
695 | csv_output ? 0 : -25, | |
7289f83c | 696 | perf_evsel__name(counter)); |
023695d9 SE |
697 | |
698 | if (counter->cgrp) | |
4aa9015f | 699 | fprintf(output, "%s%s", csv_sep, counter->cgrp->name); |
023695d9 | 700 | |
d73515c0 | 701 | print_running(avg_running, avg_enabled); |
4aa9015f | 702 | fputc('\n', output); |
2996f5dd IM |
703 | return; |
704 | } | |
c04f5e5d | 705 | |
410136f5 | 706 | uval = avg * counter->scale; |
eedfcb4b | 707 | printout(-1, 0, counter, uval); |
849abde9 | 708 | |
3ae9a34d ZH |
709 | print_noise(counter, avg); |
710 | ||
d73515c0 | 711 | print_running(avg_running, avg_enabled); |
4aa9015f | 712 | fprintf(output, "\n"); |
c04f5e5d IM |
713 | } |
714 | ||
f5b4a9c3 SE |
715 | /* |
716 | * Print out the results of a single counter: | |
717 | * does not use aggregated count in system-wide | |
718 | */ | |
13370a9b | 719 | static void print_counter(struct perf_evsel *counter, char *prefix) |
f5b4a9c3 | 720 | { |
5821522e | 721 | FILE *output = stat_config.output; |
f5b4a9c3 | 722 | u64 ena, run, val; |
410136f5 | 723 | double uval; |
f5b4a9c3 SE |
724 | int cpu; |
725 | ||
7ae92e74 | 726 | for (cpu = 0; cpu < perf_evsel__nr_cpus(counter); cpu++) { |
a6fa0038 JO |
727 | val = perf_counts(counter->counts, cpu, 0)->val; |
728 | ena = perf_counts(counter->counts, cpu, 0)->ena; | |
729 | run = perf_counts(counter->counts, cpu, 0)->run; | |
13370a9b SE |
730 | |
731 | if (prefix) | |
732 | fprintf(output, "%s", prefix); | |
733 | ||
f5b4a9c3 | 734 | if (run == 0 || ena == 0) { |
410136f5 | 735 | fprintf(output, "CPU%*d%s%*s%s", |
d7470b6a | 736 | csv_output ? 0 : -4, |
7ae92e74 | 737 | perf_evsel__cpus(counter)->map[cpu], csv_sep, |
d7470b6a | 738 | csv_output ? 0 : 18, |
2cee77c4 | 739 | counter->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED, |
410136f5 SE |
740 | csv_sep); |
741 | ||
742 | fprintf(output, "%-*s%s", | |
743 | csv_output ? 0 : unit_width, | |
744 | counter->unit, csv_sep); | |
745 | ||
746 | fprintf(output, "%*s", | |
747 | csv_output ? 0 : -25, | |
748 | perf_evsel__name(counter)); | |
f5b4a9c3 | 749 | |
023695d9 | 750 | if (counter->cgrp) |
4aa9015f SE |
751 | fprintf(output, "%s%s", |
752 | csv_sep, counter->cgrp->name); | |
023695d9 | 753 | |
d73515c0 | 754 | print_running(run, ena); |
4aa9015f | 755 | fputc('\n', output); |
f5b4a9c3 SE |
756 | continue; |
757 | } | |
758 | ||
410136f5 | 759 | uval = val * counter->scale; |
eedfcb4b | 760 | printout(cpu, 0, counter, uval); |
d73515c0 | 761 | if (!csv_output) |
d7470b6a | 762 | print_noise(counter, 1.0); |
d73515c0 | 763 | print_running(run, ena); |
f5b4a9c3 | 764 | |
4aa9015f | 765 | fputc('\n', output); |
f5b4a9c3 SE |
766 | } |
767 | } | |
768 | ||
d4f63a47 JO |
769 | static void print_interval(char *prefix, struct timespec *ts) |
770 | { | |
5821522e | 771 | FILE *output = stat_config.output; |
d4f63a47 JO |
772 | static int num_print_interval; |
773 | ||
774 | sprintf(prefix, "%6lu.%09lu%s", ts->tv_sec, ts->tv_nsec, csv_sep); | |
775 | ||
776 | if (num_print_interval == 0 && !csv_output) { | |
421a50f3 | 777 | switch (stat_config.aggr_mode) { |
d4f63a47 JO |
778 | case AGGR_SOCKET: |
779 | fprintf(output, "# time socket cpus counts %*s events\n", unit_width, "unit"); | |
780 | break; | |
781 | case AGGR_CORE: | |
782 | fprintf(output, "# time core cpus counts %*s events\n", unit_width, "unit"); | |
783 | break; | |
784 | case AGGR_NONE: | |
785 | fprintf(output, "# time CPU counts %*s events\n", unit_width, "unit"); | |
786 | break; | |
32b8af82 JO |
787 | case AGGR_THREAD: |
788 | fprintf(output, "# time comm-pid counts %*s events\n", unit_width, "unit"); | |
789 | break; | |
d4f63a47 JO |
790 | case AGGR_GLOBAL: |
791 | default: | |
792 | fprintf(output, "# time counts %*s events\n", unit_width, "unit"); | |
208df99e JO |
793 | case AGGR_UNSET: |
794 | break; | |
d4f63a47 JO |
795 | } |
796 | } | |
797 | ||
798 | if (++num_print_interval == 25) | |
799 | num_print_interval = 0; | |
800 | } | |
801 | ||
802 | static void print_header(int argc, const char **argv) | |
42202dd5 | 803 | { |
5821522e | 804 | FILE *output = stat_config.output; |
69aad6f1 | 805 | int i; |
42202dd5 | 806 | |
ddcacfa0 IM |
807 | fflush(stdout); |
808 | ||
d7470b6a | 809 | if (!csv_output) { |
4aa9015f SE |
810 | fprintf(output, "\n"); |
811 | fprintf(output, " Performance counter stats for "); | |
62d3b617 DA |
812 | if (target.system_wide) |
813 | fprintf(output, "\'system wide"); | |
814 | else if (target.cpu_list) | |
815 | fprintf(output, "\'CPU(s) %s", target.cpu_list); | |
602ad878 | 816 | else if (!target__has_task(&target)) { |
4aa9015f | 817 | fprintf(output, "\'%s", argv[0]); |
d7470b6a | 818 | for (i = 1; i < argc; i++) |
4aa9015f | 819 | fprintf(output, " %s", argv[i]); |
20f946b4 NK |
820 | } else if (target.pid) |
821 | fprintf(output, "process id \'%s", target.pid); | |
d7470b6a | 822 | else |
20f946b4 | 823 | fprintf(output, "thread id \'%s", target.tid); |
44db76c8 | 824 | |
4aa9015f | 825 | fprintf(output, "\'"); |
d7470b6a | 826 | if (run_count > 1) |
4aa9015f SE |
827 | fprintf(output, " (%d runs)", run_count); |
828 | fprintf(output, ":\n\n"); | |
d7470b6a | 829 | } |
d4f63a47 JO |
830 | } |
831 | ||
832 | static void print_footer(void) | |
833 | { | |
5821522e JO |
834 | FILE *output = stat_config.output; |
835 | ||
d4f63a47 JO |
836 | if (!null_run) |
837 | fprintf(output, "\n"); | |
838 | fprintf(output, " %17.9f seconds time elapsed", | |
839 | avg_stats(&walltime_nsecs_stats)/1e9); | |
840 | if (run_count > 1) { | |
841 | fprintf(output, " "); | |
842 | print_noise_pct(stddev_stats(&walltime_nsecs_stats), | |
843 | avg_stats(&walltime_nsecs_stats)); | |
844 | } | |
845 | fprintf(output, "\n\n"); | |
846 | } | |
847 | ||
848 | static void print_counters(struct timespec *ts, int argc, const char **argv) | |
849 | { | |
ec0d3d1f | 850 | int interval = stat_config.interval; |
d4f63a47 JO |
851 | struct perf_evsel *counter; |
852 | char buf[64], *prefix = NULL; | |
853 | ||
854 | if (interval) | |
855 | print_interval(prefix = buf, ts); | |
856 | else | |
857 | print_header(argc, argv); | |
2996f5dd | 858 | |
421a50f3 | 859 | switch (stat_config.aggr_mode) { |
12c08a9f | 860 | case AGGR_CORE: |
86ee6e18 | 861 | case AGGR_SOCKET: |
d4f63a47 | 862 | print_aggr(prefix); |
86ee6e18 | 863 | break; |
32b8af82 JO |
864 | case AGGR_THREAD: |
865 | evlist__for_each(evsel_list, counter) | |
866 | print_aggr_thread(counter, prefix); | |
867 | break; | |
86ee6e18 | 868 | case AGGR_GLOBAL: |
0050f7aa | 869 | evlist__for_each(evsel_list, counter) |
d4f63a47 | 870 | print_counter_aggr(counter, prefix); |
86ee6e18 SE |
871 | break; |
872 | case AGGR_NONE: | |
0050f7aa | 873 | evlist__for_each(evsel_list, counter) |
d4f63a47 | 874 | print_counter(counter, prefix); |
86ee6e18 | 875 | break; |
208df99e | 876 | case AGGR_UNSET: |
86ee6e18 SE |
877 | default: |
878 | break; | |
f5b4a9c3 | 879 | } |
ddcacfa0 | 880 | |
d4f63a47 JO |
881 | if (!interval && !csv_output) |
882 | print_footer(); | |
883 | ||
5821522e | 884 | fflush(stat_config.output); |
ddcacfa0 IM |
885 | } |
886 | ||
f7b7c26e PZ |
887 | static volatile int signr = -1; |
888 | ||
5242519b | 889 | static void skip_signal(int signo) |
ddcacfa0 | 890 | { |
ec0d3d1f | 891 | if ((child_pid == -1) || stat_config.interval) |
60666c63 LW |
892 | done = 1; |
893 | ||
f7b7c26e | 894 | signr = signo; |
d07f0b12 SE |
895 | /* |
896 | * render child_pid harmless | |
897 | * won't send SIGTERM to a random | |
898 | * process in case of race condition | |
899 | * and fast PID recycling | |
900 | */ | |
901 | child_pid = -1; | |
f7b7c26e PZ |
902 | } |
903 | ||
904 | static void sig_atexit(void) | |
905 | { | |
d07f0b12 SE |
906 | sigset_t set, oset; |
907 | ||
908 | /* | |
909 | * avoid race condition with SIGCHLD handler | |
910 | * in skip_signal() which is modifying child_pid | |
911 | * goal is to avoid send SIGTERM to a random | |
912 | * process | |
913 | */ | |
914 | sigemptyset(&set); | |
915 | sigaddset(&set, SIGCHLD); | |
916 | sigprocmask(SIG_BLOCK, &set, &oset); | |
917 | ||
933da83a CW |
918 | if (child_pid != -1) |
919 | kill(child_pid, SIGTERM); | |
920 | ||
d07f0b12 SE |
921 | sigprocmask(SIG_SETMASK, &oset, NULL); |
922 | ||
f7b7c26e PZ |
923 | if (signr == -1) |
924 | return; | |
925 | ||
926 | signal(signr, SIG_DFL); | |
927 | kill(getpid(), signr); | |
5242519b IM |
928 | } |
929 | ||
1d037ca1 IT |
930 | static int stat__set_big_num(const struct option *opt __maybe_unused, |
931 | const char *s __maybe_unused, int unset) | |
d7470b6a SE |
932 | { |
933 | big_num_opt = unset ? 0 : 1; | |
934 | return 0; | |
935 | } | |
936 | ||
e0547311 JO |
937 | static const struct option stat_options[] = { |
938 | OPT_BOOLEAN('T', "transaction", &transaction_run, | |
939 | "hardware transaction statistics"), | |
940 | OPT_CALLBACK('e', "event", &evsel_list, "event", | |
941 | "event selector. use 'perf list' to list available events", | |
942 | parse_events_option), | |
943 | OPT_CALLBACK(0, "filter", &evsel_list, "filter", | |
944 | "event filter", parse_filter), | |
945 | OPT_BOOLEAN('i', "no-inherit", &no_inherit, | |
946 | "child tasks do not inherit counters"), | |
947 | OPT_STRING('p', "pid", &target.pid, "pid", | |
948 | "stat events on existing process id"), | |
949 | OPT_STRING('t', "tid", &target.tid, "tid", | |
950 | "stat events on existing thread id"), | |
951 | OPT_BOOLEAN('a', "all-cpus", &target.system_wide, | |
952 | "system-wide collection from all CPUs"), | |
953 | OPT_BOOLEAN('g', "group", &group, | |
954 | "put the counters into a counter group"), | |
955 | OPT_BOOLEAN('c', "scale", &stat_config.scale, "scale/normalize counters"), | |
956 | OPT_INCR('v', "verbose", &verbose, | |
957 | "be more verbose (show counter open errors, etc)"), | |
958 | OPT_INTEGER('r', "repeat", &run_count, | |
959 | "repeat command and print average + stddev (max: 100, forever: 0)"), | |
960 | OPT_BOOLEAN('n', "null", &null_run, | |
961 | "null run - dont start any counters"), | |
962 | OPT_INCR('d', "detailed", &detailed_run, | |
963 | "detailed run - start a lot of events"), | |
964 | OPT_BOOLEAN('S', "sync", &sync_run, | |
965 | "call sync() before starting a run"), | |
966 | OPT_CALLBACK_NOOPT('B', "big-num", NULL, NULL, | |
967 | "print large numbers with thousands\' separators", | |
968 | stat__set_big_num), | |
969 | OPT_STRING('C', "cpu", &target.cpu_list, "cpu", | |
970 | "list of cpus to monitor in system-wide"), | |
971 | OPT_SET_UINT('A', "no-aggr", &stat_config.aggr_mode, | |
972 | "disable CPU count aggregation", AGGR_NONE), | |
973 | OPT_STRING('x', "field-separator", &csv_sep, "separator", | |
974 | "print counts with custom separator"), | |
975 | OPT_CALLBACK('G', "cgroup", &evsel_list, "name", | |
976 | "monitor event in cgroup name only", parse_cgroups), | |
977 | OPT_STRING('o', "output", &output_name, "file", "output file name"), | |
978 | OPT_BOOLEAN(0, "append", &append_file, "append to the output file"), | |
979 | OPT_INTEGER(0, "log-fd", &output_fd, | |
980 | "log output to fd, instead of stderr"), | |
981 | OPT_STRING(0, "pre", &pre_cmd, "command", | |
982 | "command to run prior to the measured command"), | |
983 | OPT_STRING(0, "post", &post_cmd, "command", | |
984 | "command to run after to the measured command"), | |
985 | OPT_UINTEGER('I', "interval-print", &stat_config.interval, | |
986 | "print counts at regular interval in ms (>= 10)"), | |
987 | OPT_SET_UINT(0, "per-socket", &stat_config.aggr_mode, | |
988 | "aggregate counts per processor socket", AGGR_SOCKET), | |
989 | OPT_SET_UINT(0, "per-core", &stat_config.aggr_mode, | |
990 | "aggregate counts per physical processor core", AGGR_CORE), | |
991 | OPT_SET_UINT(0, "per-thread", &stat_config.aggr_mode, | |
992 | "aggregate counts per thread", AGGR_THREAD), | |
993 | OPT_UINTEGER('D', "delay", &initial_delay, | |
994 | "ms to wait before starting measurement after program start"), | |
995 | OPT_END() | |
996 | }; | |
997 | ||
1fe7a300 JO |
998 | static int perf_stat__get_socket(struct cpu_map *map, int cpu) |
999 | { | |
1000 | return cpu_map__get_socket(map, cpu, NULL); | |
1001 | } | |
1002 | ||
1003 | static int perf_stat__get_core(struct cpu_map *map, int cpu) | |
1004 | { | |
1005 | return cpu_map__get_core(map, cpu, NULL); | |
1006 | } | |
1007 | ||
1e5a2931 JO |
1008 | static int cpu_map__get_max(struct cpu_map *map) |
1009 | { | |
1010 | int i, max = -1; | |
1011 | ||
1012 | for (i = 0; i < map->nr; i++) { | |
1013 | if (map->map[i] > max) | |
1014 | max = map->map[i]; | |
1015 | } | |
1016 | ||
1017 | return max; | |
1018 | } | |
1019 | ||
1020 | static struct cpu_map *cpus_aggr_map; | |
1021 | ||
1022 | static int perf_stat__get_aggr(aggr_get_id_t get_id, struct cpu_map *map, int idx) | |
1023 | { | |
1024 | int cpu; | |
1025 | ||
1026 | if (idx >= map->nr) | |
1027 | return -1; | |
1028 | ||
1029 | cpu = map->map[idx]; | |
1030 | ||
1031 | if (cpus_aggr_map->map[cpu] == -1) | |
1032 | cpus_aggr_map->map[cpu] = get_id(map, idx); | |
1033 | ||
1034 | return cpus_aggr_map->map[cpu]; | |
1035 | } | |
1036 | ||
1037 | static int perf_stat__get_socket_cached(struct cpu_map *map, int idx) | |
1038 | { | |
1039 | return perf_stat__get_aggr(perf_stat__get_socket, map, idx); | |
1040 | } | |
1041 | ||
1042 | static int perf_stat__get_core_cached(struct cpu_map *map, int idx) | |
1043 | { | |
1044 | return perf_stat__get_aggr(perf_stat__get_core, map, idx); | |
1045 | } | |
1046 | ||
86ee6e18 SE |
1047 | static int perf_stat_init_aggr_mode(void) |
1048 | { | |
1e5a2931 JO |
1049 | int nr; |
1050 | ||
421a50f3 | 1051 | switch (stat_config.aggr_mode) { |
86ee6e18 SE |
1052 | case AGGR_SOCKET: |
1053 | if (cpu_map__build_socket_map(evsel_list->cpus, &aggr_map)) { | |
1054 | perror("cannot build socket map"); | |
1055 | return -1; | |
1056 | } | |
1e5a2931 | 1057 | aggr_get_id = perf_stat__get_socket_cached; |
86ee6e18 | 1058 | break; |
12c08a9f SE |
1059 | case AGGR_CORE: |
1060 | if (cpu_map__build_core_map(evsel_list->cpus, &aggr_map)) { | |
1061 | perror("cannot build core map"); | |
1062 | return -1; | |
1063 | } | |
1e5a2931 | 1064 | aggr_get_id = perf_stat__get_core_cached; |
12c08a9f | 1065 | break; |
86ee6e18 SE |
1066 | case AGGR_NONE: |
1067 | case AGGR_GLOBAL: | |
32b8af82 | 1068 | case AGGR_THREAD: |
208df99e | 1069 | case AGGR_UNSET: |
86ee6e18 SE |
1070 | default: |
1071 | break; | |
1072 | } | |
1e5a2931 JO |
1073 | |
1074 | /* | |
1075 | * The evsel_list->cpus is the base we operate on, | |
1076 | * taking the highest cpu number to be the size of | |
1077 | * the aggregation translate cpumap. | |
1078 | */ | |
1079 | nr = cpu_map__get_max(evsel_list->cpus); | |
1080 | cpus_aggr_map = cpu_map__empty_new(nr + 1); | |
1081 | return cpus_aggr_map ? 0 : -ENOMEM; | |
86ee6e18 SE |
1082 | } |
1083 | ||
2cba3ffb IM |
1084 | /* |
1085 | * Add default attributes, if there were no attributes specified or | |
1086 | * if -d/--detailed, -d -d or -d -d -d is used: | |
1087 | */ | |
1088 | static int add_default_attributes(void) | |
1089 | { | |
b070a547 ACM |
1090 | struct perf_event_attr default_attrs[] = { |
1091 | ||
1092 | { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_TASK_CLOCK }, | |
1093 | { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_CONTEXT_SWITCHES }, | |
1094 | { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_CPU_MIGRATIONS }, | |
1095 | { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_PAGE_FAULTS }, | |
1096 | ||
1097 | { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_CPU_CYCLES }, | |
1098 | { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_STALLED_CYCLES_FRONTEND }, | |
1099 | { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_STALLED_CYCLES_BACKEND }, | |
1100 | { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_INSTRUCTIONS }, | |
1101 | { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_BRANCH_INSTRUCTIONS }, | |
1102 | { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_BRANCH_MISSES }, | |
1103 | ||
1104 | }; | |
1105 | ||
1106 | /* | |
1107 | * Detailed stats (-d), covering the L1 and last level data caches: | |
1108 | */ | |
1109 | struct perf_event_attr detailed_attrs[] = { | |
1110 | ||
1111 | { .type = PERF_TYPE_HW_CACHE, | |
1112 | .config = | |
1113 | PERF_COUNT_HW_CACHE_L1D << 0 | | |
1114 | (PERF_COUNT_HW_CACHE_OP_READ << 8) | | |
1115 | (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, | |
1116 | ||
1117 | { .type = PERF_TYPE_HW_CACHE, | |
1118 | .config = | |
1119 | PERF_COUNT_HW_CACHE_L1D << 0 | | |
1120 | (PERF_COUNT_HW_CACHE_OP_READ << 8) | | |
1121 | (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, | |
1122 | ||
1123 | { .type = PERF_TYPE_HW_CACHE, | |
1124 | .config = | |
1125 | PERF_COUNT_HW_CACHE_LL << 0 | | |
1126 | (PERF_COUNT_HW_CACHE_OP_READ << 8) | | |
1127 | (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, | |
1128 | ||
1129 | { .type = PERF_TYPE_HW_CACHE, | |
1130 | .config = | |
1131 | PERF_COUNT_HW_CACHE_LL << 0 | | |
1132 | (PERF_COUNT_HW_CACHE_OP_READ << 8) | | |
1133 | (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, | |
1134 | }; | |
1135 | ||
1136 | /* | |
1137 | * Very detailed stats (-d -d), covering the instruction cache and the TLB caches: | |
1138 | */ | |
1139 | struct perf_event_attr very_detailed_attrs[] = { | |
1140 | ||
1141 | { .type = PERF_TYPE_HW_CACHE, | |
1142 | .config = | |
1143 | PERF_COUNT_HW_CACHE_L1I << 0 | | |
1144 | (PERF_COUNT_HW_CACHE_OP_READ << 8) | | |
1145 | (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, | |
1146 | ||
1147 | { .type = PERF_TYPE_HW_CACHE, | |
1148 | .config = | |
1149 | PERF_COUNT_HW_CACHE_L1I << 0 | | |
1150 | (PERF_COUNT_HW_CACHE_OP_READ << 8) | | |
1151 | (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, | |
1152 | ||
1153 | { .type = PERF_TYPE_HW_CACHE, | |
1154 | .config = | |
1155 | PERF_COUNT_HW_CACHE_DTLB << 0 | | |
1156 | (PERF_COUNT_HW_CACHE_OP_READ << 8) | | |
1157 | (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, | |
1158 | ||
1159 | { .type = PERF_TYPE_HW_CACHE, | |
1160 | .config = | |
1161 | PERF_COUNT_HW_CACHE_DTLB << 0 | | |
1162 | (PERF_COUNT_HW_CACHE_OP_READ << 8) | | |
1163 | (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, | |
1164 | ||
1165 | { .type = PERF_TYPE_HW_CACHE, | |
1166 | .config = | |
1167 | PERF_COUNT_HW_CACHE_ITLB << 0 | | |
1168 | (PERF_COUNT_HW_CACHE_OP_READ << 8) | | |
1169 | (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, | |
1170 | ||
1171 | { .type = PERF_TYPE_HW_CACHE, | |
1172 | .config = | |
1173 | PERF_COUNT_HW_CACHE_ITLB << 0 | | |
1174 | (PERF_COUNT_HW_CACHE_OP_READ << 8) | | |
1175 | (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, | |
1176 | ||
1177 | }; | |
1178 | ||
1179 | /* | |
1180 | * Very, very detailed stats (-d -d -d), adding prefetch events: | |
1181 | */ | |
1182 | struct perf_event_attr very_very_detailed_attrs[] = { | |
1183 | ||
1184 | { .type = PERF_TYPE_HW_CACHE, | |
1185 | .config = | |
1186 | PERF_COUNT_HW_CACHE_L1D << 0 | | |
1187 | (PERF_COUNT_HW_CACHE_OP_PREFETCH << 8) | | |
1188 | (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, | |
1189 | ||
1190 | { .type = PERF_TYPE_HW_CACHE, | |
1191 | .config = | |
1192 | PERF_COUNT_HW_CACHE_L1D << 0 | | |
1193 | (PERF_COUNT_HW_CACHE_OP_PREFETCH << 8) | | |
1194 | (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, | |
1195 | }; | |
1196 | ||
2cba3ffb IM |
1197 | /* Set attrs if no event is selected and !null_run: */ |
1198 | if (null_run) | |
1199 | return 0; | |
1200 | ||
4cabc3d1 AK |
1201 | if (transaction_run) { |
1202 | int err; | |
1203 | if (pmu_have_event("cpu", "cycles-ct") && | |
1204 | pmu_have_event("cpu", "el-start")) | |
a454742c | 1205 | err = parse_events(evsel_list, transaction_attrs, NULL); |
4cabc3d1 | 1206 | else |
a454742c JO |
1207 | err = parse_events(evsel_list, transaction_limited_attrs, NULL); |
1208 | if (err) { | |
4cabc3d1 AK |
1209 | fprintf(stderr, "Cannot set up transaction events\n"); |
1210 | return -1; | |
1211 | } | |
1212 | return 0; | |
1213 | } | |
1214 | ||
2cba3ffb | 1215 | if (!evsel_list->nr_entries) { |
79695e1b | 1216 | if (perf_evlist__add_default_attrs(evsel_list, default_attrs) < 0) |
50d08e47 | 1217 | return -1; |
2cba3ffb IM |
1218 | } |
1219 | ||
1220 | /* Detailed events get appended to the event list: */ | |
1221 | ||
1222 | if (detailed_run < 1) | |
1223 | return 0; | |
1224 | ||
1225 | /* Append detailed run extra attributes: */ | |
79695e1b | 1226 | if (perf_evlist__add_default_attrs(evsel_list, detailed_attrs) < 0) |
50d08e47 | 1227 | return -1; |
2cba3ffb IM |
1228 | |
1229 | if (detailed_run < 2) | |
1230 | return 0; | |
1231 | ||
1232 | /* Append very detailed run extra attributes: */ | |
79695e1b | 1233 | if (perf_evlist__add_default_attrs(evsel_list, very_detailed_attrs) < 0) |
50d08e47 | 1234 | return -1; |
2cba3ffb IM |
1235 | |
1236 | if (detailed_run < 3) | |
1237 | return 0; | |
1238 | ||
1239 | /* Append very, very detailed run extra attributes: */ | |
79695e1b | 1240 | return perf_evlist__add_default_attrs(evsel_list, very_very_detailed_attrs); |
2cba3ffb IM |
1241 | } |
1242 | ||
1d037ca1 | 1243 | int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused) |
5242519b | 1244 | { |
b070a547 ACM |
1245 | const char * const stat_usage[] = { |
1246 | "perf stat [<options>] [<command>]", | |
1247 | NULL | |
1248 | }; | |
cc03c542 | 1249 | int status = -EINVAL, run_idx; |
4aa9015f | 1250 | const char *mode; |
5821522e | 1251 | FILE *output = stderr; |
ec0d3d1f | 1252 | unsigned int interval; |
42202dd5 | 1253 | |
5af52b51 SE |
1254 | setlocale(LC_ALL, ""); |
1255 | ||
334fe7a3 | 1256 | evsel_list = perf_evlist__new(); |
361c99a6 ACM |
1257 | if (evsel_list == NULL) |
1258 | return -ENOMEM; | |
1259 | ||
e0547311 | 1260 | argc = parse_options(argc, argv, stat_options, stat_usage, |
a0541234 | 1261 | PARSE_OPT_STOP_AT_NON_OPTION); |
d7470b6a | 1262 | |
ec0d3d1f JO |
1263 | interval = stat_config.interval; |
1264 | ||
4aa9015f SE |
1265 | if (output_name && strcmp(output_name, "-")) |
1266 | output = NULL; | |
1267 | ||
56f3bae7 JC |
1268 | if (output_name && output_fd) { |
1269 | fprintf(stderr, "cannot use both --output and --log-fd\n"); | |
e0547311 JO |
1270 | parse_options_usage(stat_usage, stat_options, "o", 1); |
1271 | parse_options_usage(NULL, stat_options, "log-fd", 0); | |
cc03c542 | 1272 | goto out; |
56f3bae7 | 1273 | } |
fc3e4d07 SE |
1274 | |
1275 | if (output_fd < 0) { | |
1276 | fprintf(stderr, "argument to --log-fd must be a > 0\n"); | |
e0547311 | 1277 | parse_options_usage(stat_usage, stat_options, "log-fd", 0); |
cc03c542 | 1278 | goto out; |
fc3e4d07 SE |
1279 | } |
1280 | ||
4aa9015f SE |
1281 | if (!output) { |
1282 | struct timespec tm; | |
1283 | mode = append_file ? "a" : "w"; | |
1284 | ||
1285 | output = fopen(output_name, mode); | |
1286 | if (!output) { | |
1287 | perror("failed to create output file"); | |
fceda7fe | 1288 | return -1; |
4aa9015f SE |
1289 | } |
1290 | clock_gettime(CLOCK_REALTIME, &tm); | |
1291 | fprintf(output, "# started on %s\n", ctime(&tm.tv_sec)); | |
fc3e4d07 | 1292 | } else if (output_fd > 0) { |
56f3bae7 JC |
1293 | mode = append_file ? "a" : "w"; |
1294 | output = fdopen(output_fd, mode); | |
1295 | if (!output) { | |
1296 | perror("Failed opening logfd"); | |
1297 | return -errno; | |
1298 | } | |
4aa9015f SE |
1299 | } |
1300 | ||
5821522e JO |
1301 | stat_config.output = output; |
1302 | ||
d4ffd04d | 1303 | if (csv_sep) { |
d7470b6a | 1304 | csv_output = true; |
d4ffd04d JC |
1305 | if (!strcmp(csv_sep, "\\t")) |
1306 | csv_sep = "\t"; | |
1307 | } else | |
d7470b6a SE |
1308 | csv_sep = DEFAULT_SEPARATOR; |
1309 | ||
1310 | /* | |
1311 | * let the spreadsheet do the pretty-printing | |
1312 | */ | |
1313 | if (csv_output) { | |
61a9f324 | 1314 | /* User explicitly passed -B? */ |
d7470b6a SE |
1315 | if (big_num_opt == 1) { |
1316 | fprintf(stderr, "-B option not supported with -x\n"); | |
e0547311 JO |
1317 | parse_options_usage(stat_usage, stat_options, "B", 1); |
1318 | parse_options_usage(NULL, stat_options, "x", 1); | |
cc03c542 | 1319 | goto out; |
d7470b6a SE |
1320 | } else /* Nope, so disable big number formatting */ |
1321 | big_num = false; | |
1322 | } else if (big_num_opt == 0) /* User passed --no-big-num */ | |
1323 | big_num = false; | |
1324 | ||
602ad878 | 1325 | if (!argc && target__none(&target)) |
e0547311 | 1326 | usage_with_options(stat_usage, stat_options); |
ac3063bd | 1327 | |
a7e191c3 | 1328 | if (run_count < 0) { |
cc03c542 | 1329 | pr_err("Run count must be a positive number\n"); |
e0547311 | 1330 | parse_options_usage(stat_usage, stat_options, "r", 1); |
cc03c542 | 1331 | goto out; |
a7e191c3 FD |
1332 | } else if (run_count == 0) { |
1333 | forever = true; | |
1334 | run_count = 1; | |
1335 | } | |
ddcacfa0 | 1336 | |
421a50f3 | 1337 | if ((stat_config.aggr_mode == AGGR_THREAD) && !target__has_task(&target)) { |
32b8af82 JO |
1338 | fprintf(stderr, "The --per-thread option is only available " |
1339 | "when monitoring via -p -t options.\n"); | |
e0547311 JO |
1340 | parse_options_usage(NULL, stat_options, "p", 1); |
1341 | parse_options_usage(NULL, stat_options, "t", 1); | |
32b8af82 JO |
1342 | goto out; |
1343 | } | |
1344 | ||
1345 | /* | |
1346 | * no_aggr, cgroup are for system-wide only | |
1347 | * --per-thread is aggregated per thread, we dont mix it with cpu mode | |
1348 | */ | |
421a50f3 JO |
1349 | if (((stat_config.aggr_mode != AGGR_GLOBAL && |
1350 | stat_config.aggr_mode != AGGR_THREAD) || nr_cgroups) && | |
602ad878 | 1351 | !target__has_cpu(&target)) { |
023695d9 SE |
1352 | fprintf(stderr, "both cgroup and no-aggregation " |
1353 | "modes only available in system-wide mode\n"); | |
1354 | ||
e0547311 JO |
1355 | parse_options_usage(stat_usage, stat_options, "G", 1); |
1356 | parse_options_usage(NULL, stat_options, "A", 1); | |
1357 | parse_options_usage(NULL, stat_options, "a", 1); | |
cc03c542 | 1358 | goto out; |
d7e7a451 SE |
1359 | } |
1360 | ||
2cba3ffb IM |
1361 | if (add_default_attributes()) |
1362 | goto out; | |
ddcacfa0 | 1363 | |
602ad878 | 1364 | target__validate(&target); |
5c98d466 | 1365 | |
77a6f014 | 1366 | if (perf_evlist__create_maps(evsel_list, &target) < 0) { |
602ad878 | 1367 | if (target__has_task(&target)) { |
77a6f014 | 1368 | pr_err("Problems finding threads of monitor\n"); |
e0547311 JO |
1369 | parse_options_usage(stat_usage, stat_options, "p", 1); |
1370 | parse_options_usage(NULL, stat_options, "t", 1); | |
602ad878 | 1371 | } else if (target__has_cpu(&target)) { |
77a6f014 | 1372 | perror("failed to parse CPUs map"); |
e0547311 JO |
1373 | parse_options_usage(stat_usage, stat_options, "C", 1); |
1374 | parse_options_usage(NULL, stat_options, "a", 1); | |
cc03c542 NK |
1375 | } |
1376 | goto out; | |
60d567e2 | 1377 | } |
32b8af82 JO |
1378 | |
1379 | /* | |
1380 | * Initialize thread_map with comm names, | |
1381 | * so we could print it out on output. | |
1382 | */ | |
421a50f3 | 1383 | if (stat_config.aggr_mode == AGGR_THREAD) |
32b8af82 JO |
1384 | thread_map__read_comms(evsel_list->threads); |
1385 | ||
13370a9b | 1386 | if (interval && interval < 100) { |
19afd104 KL |
1387 | if (interval < 10) { |
1388 | pr_err("print interval must be >= 10ms\n"); | |
e0547311 | 1389 | parse_options_usage(stat_usage, stat_options, "I", 1); |
19afd104 KL |
1390 | goto out; |
1391 | } else | |
1392 | pr_warning("print interval < 100ms. " | |
1393 | "The overhead percentage could be high in some cases. " | |
1394 | "Please proceed with caution.\n"); | |
13370a9b | 1395 | } |
c45c6ea2 | 1396 | |
d134ffb9 | 1397 | if (perf_evlist__alloc_stats(evsel_list, interval)) |
03ad9747 | 1398 | goto out; |
d6d901c2 | 1399 | |
86ee6e18 | 1400 | if (perf_stat_init_aggr_mode()) |
03ad9747 | 1401 | goto out; |
86ee6e18 | 1402 | |
58d7e993 IM |
1403 | /* |
1404 | * We dont want to block the signals - that would cause | |
1405 | * child tasks to inherit that and Ctrl-C would not work. | |
1406 | * What we want is for Ctrl-C to work in the exec()-ed | |
1407 | * task, but being ignored by perf stat itself: | |
1408 | */ | |
f7b7c26e | 1409 | atexit(sig_atexit); |
a7e191c3 FD |
1410 | if (!forever) |
1411 | signal(SIGINT, skip_signal); | |
13370a9b | 1412 | signal(SIGCHLD, skip_signal); |
58d7e993 IM |
1413 | signal(SIGALRM, skip_signal); |
1414 | signal(SIGABRT, skip_signal); | |
1415 | ||
42202dd5 | 1416 | status = 0; |
a7e191c3 | 1417 | for (run_idx = 0; forever || run_idx < run_count; run_idx++) { |
42202dd5 | 1418 | if (run_count != 1 && verbose) |
4aa9015f SE |
1419 | fprintf(output, "[ perf stat: executing run #%d ... ]\n", |
1420 | run_idx + 1); | |
f9cef0a9 | 1421 | |
42202dd5 | 1422 | status = run_perf_stat(argc, argv); |
a7e191c3 | 1423 | if (forever && status != -1) { |
d4f63a47 | 1424 | print_counters(NULL, argc, argv); |
254ecbc7 | 1425 | perf_stat__reset_stats(); |
a7e191c3 | 1426 | } |
42202dd5 IM |
1427 | } |
1428 | ||
a7e191c3 | 1429 | if (!forever && status != -1 && !interval) |
d4f63a47 | 1430 | print_counters(NULL, argc, argv); |
d134ffb9 ACM |
1431 | |
1432 | perf_evlist__free_stats(evsel_list); | |
0015e2e1 ACM |
1433 | out: |
1434 | perf_evlist__delete(evsel_list); | |
42202dd5 | 1435 | return status; |
ddcacfa0 | 1436 | } |