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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 | |
bf9e1876 IM |
9 | $ perf stat ~/hackbench 10 |
10 | Time: 0.104 | |
ddcacfa0 | 11 | |
bf9e1876 | 12 | Performance counter stats for '/home/mingo/hackbench': |
ddcacfa0 | 13 | |
bf9e1876 IM |
14 | 1255.538611 task clock ticks # 10.143 CPU utilization factor |
15 | 54011 context switches # 0.043 M/sec | |
16 | 385 CPU migrations # 0.000 M/sec | |
17 | 17755 pagefaults # 0.014 M/sec | |
18 | 3808323185 CPU cycles # 3033.219 M/sec | |
19 | 1575111190 instructions # 1254.530 M/sec | |
20 | 17367895 cache references # 13.833 M/sec | |
21 | 7674421 cache misses # 6.112 M/sec | |
ddcacfa0 | 22 | |
bf9e1876 | 23 | Wall-clock time elapsed: 123.786620 msecs |
ddcacfa0 | 24 | |
5242519b IM |
25 | * |
26 | * Copyright (C) 2008, Red Hat Inc, Ingo Molnar <mingo@redhat.com> | |
27 | * | |
28 | * Improvements and fixes by: | |
29 | * | |
30 | * Arjan van de Ven <arjan@linux.intel.com> | |
31 | * Yanmin Zhang <yanmin.zhang@intel.com> | |
32 | * Wu Fengguang <fengguang.wu@intel.com> | |
33 | * Mike Galbraith <efault@gmx.de> | |
34 | * Paul Mackerras <paulus@samba.org> | |
6e750a8f | 35 | * Jaswinder Singh Rajput <jaswinder@kernel.org> |
5242519b IM |
36 | * |
37 | * Released under the GPL v2. (and only v2, not any later version) | |
ddcacfa0 IM |
38 | */ |
39 | ||
1a482f38 | 40 | #include "perf.h" |
16f762a2 | 41 | #include "builtin.h" |
148be2c1 | 42 | #include "util/util.h" |
5242519b IM |
43 | #include "util/parse-options.h" |
44 | #include "util/parse-events.h" | |
8f28827a | 45 | #include "util/event.h" |
361c99a6 | 46 | #include "util/evlist.h" |
69aad6f1 | 47 | #include "util/evsel.h" |
8f28827a | 48 | #include "util/debug.h" |
a5d243d0 | 49 | #include "util/color.h" |
60666c63 | 50 | #include "util/header.h" |
a12b51c4 | 51 | #include "util/cpumap.h" |
d6d901c2 | 52 | #include "util/thread.h" |
fd78260b | 53 | #include "util/thread_map.h" |
ddcacfa0 | 54 | |
ddcacfa0 | 55 | #include <sys/prctl.h> |
42202dd5 | 56 | #include <math.h> |
5af52b51 | 57 | #include <locale.h> |
16c8a109 | 58 | |
d7470b6a SE |
59 | #define DEFAULT_SEPARATOR " " |
60 | ||
cdd6c482 | 61 | static struct perf_event_attr default_attrs[] = { |
ddcacfa0 | 62 | |
56aab464 IM |
63 | { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_TASK_CLOCK }, |
64 | { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_CONTEXT_SWITCHES }, | |
65 | { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_CPU_MIGRATIONS }, | |
66 | { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_PAGE_FAULTS }, | |
f4dbfa8f | 67 | |
56aab464 | 68 | { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_CPU_CYCLES }, |
129c04cb IM |
69 | { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_STALLED_CYCLES_FRONTEND }, |
70 | { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_STALLED_CYCLES_BACKEND }, | |
56aab464 | 71 | { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_INSTRUCTIONS }, |
56aab464 IM |
72 | { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_BRANCH_INSTRUCTIONS }, |
73 | { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_BRANCH_MISSES }, | |
f4dbfa8f | 74 | |
ddcacfa0 | 75 | }; |
5242519b | 76 | |
c6264def IM |
77 | /* |
78 | * Detailed stats: | |
79 | */ | |
80 | static struct perf_event_attr detailed_attrs[] = { | |
81 | ||
82 | { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_TASK_CLOCK }, | |
83 | { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_CONTEXT_SWITCHES }, | |
84 | { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_CPU_MIGRATIONS }, | |
85 | { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_PAGE_FAULTS }, | |
86 | ||
87 | { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_CPU_CYCLES }, | |
129c04cb IM |
88 | { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_STALLED_CYCLES_FRONTEND }, |
89 | { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_STALLED_CYCLES_BACKEND }, | |
c6264def IM |
90 | { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_INSTRUCTIONS }, |
91 | { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_BRANCH_INSTRUCTIONS }, | |
92 | { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_BRANCH_MISSES }, | |
93 | ||
94 | { .type = PERF_TYPE_HW_CACHE, | |
95 | .config = | |
96 | PERF_COUNT_HW_CACHE_L1D << 0 | | |
97 | (PERF_COUNT_HW_CACHE_OP_READ << 8) | | |
98 | (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, | |
99 | ||
100 | { .type = PERF_TYPE_HW_CACHE, | |
101 | .config = | |
102 | PERF_COUNT_HW_CACHE_L1D << 0 | | |
103 | (PERF_COUNT_HW_CACHE_OP_READ << 8) | | |
104 | (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, | |
105 | ||
106 | { .type = PERF_TYPE_HW_CACHE, | |
107 | .config = | |
108 | PERF_COUNT_HW_CACHE_LL << 0 | | |
109 | (PERF_COUNT_HW_CACHE_OP_READ << 8) | | |
110 | (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, | |
111 | ||
112 | { .type = PERF_TYPE_HW_CACHE, | |
113 | .config = | |
114 | PERF_COUNT_HW_CACHE_LL << 0 | | |
115 | (PERF_COUNT_HW_CACHE_OP_READ << 8) | | |
116 | (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, | |
117 | }; | |
118 | ||
361c99a6 ACM |
119 | struct perf_evlist *evsel_list; |
120 | ||
c0555642 | 121 | static bool system_wide = false; |
3d632595 | 122 | static int run_idx = 0; |
ddcacfa0 | 123 | |
3d632595 | 124 | static int run_count = 1; |
2e6cdf99 | 125 | static bool no_inherit = false; |
c0555642 | 126 | static bool scale = true; |
f5b4a9c3 | 127 | static bool no_aggr = false; |
933da83a | 128 | static pid_t target_pid = -1; |
d6d901c2 | 129 | static pid_t target_tid = -1; |
933da83a | 130 | static pid_t child_pid = -1; |
c0555642 | 131 | static bool null_run = false; |
c6264def | 132 | static bool detailed_run = false; |
f9cef0a9 | 133 | static bool sync_run = false; |
201e0b06 | 134 | static bool big_num = true; |
d7470b6a | 135 | static int big_num_opt = -1; |
c45c6ea2 | 136 | static const char *cpu_list; |
d7470b6a SE |
137 | static const char *csv_sep = NULL; |
138 | static bool csv_output = false; | |
5af52b51 | 139 | |
60666c63 LW |
140 | static volatile int done = 0; |
141 | ||
506d4bc8 PZ |
142 | struct stats |
143 | { | |
8a02631a | 144 | double n, mean, M2; |
506d4bc8 | 145 | }; |
42202dd5 | 146 | |
69aad6f1 ACM |
147 | struct perf_stat { |
148 | struct stats res_stats[3]; | |
69aad6f1 ACM |
149 | }; |
150 | ||
c52b12ed | 151 | static int perf_evsel__alloc_stat_priv(struct perf_evsel *evsel) |
69aad6f1 | 152 | { |
c52b12ed | 153 | evsel->priv = zalloc(sizeof(struct perf_stat)); |
69aad6f1 ACM |
154 | return evsel->priv == NULL ? -ENOMEM : 0; |
155 | } | |
156 | ||
157 | static void perf_evsel__free_stat_priv(struct perf_evsel *evsel) | |
158 | { | |
159 | free(evsel->priv); | |
160 | evsel->priv = NULL; | |
161 | } | |
162 | ||
9e9772c4 PZ |
163 | static void update_stats(struct stats *stats, u64 val) |
164 | { | |
8a02631a | 165 | double delta; |
9e9772c4 | 166 | |
8a02631a PZ |
167 | stats->n++; |
168 | delta = val - stats->mean; | |
169 | stats->mean += delta / stats->n; | |
170 | stats->M2 += delta*(val - stats->mean); | |
9e9772c4 PZ |
171 | } |
172 | ||
506d4bc8 PZ |
173 | static double avg_stats(struct stats *stats) |
174 | { | |
8a02631a | 175 | return stats->mean; |
506d4bc8 | 176 | } |
42202dd5 | 177 | |
506d4bc8 | 178 | /* |
63d40deb PZ |
179 | * http://en.wikipedia.org/wiki/Algorithms_for_calculating_variance |
180 | * | |
8a02631a PZ |
181 | * (\Sum n_i^2) - ((\Sum n_i)^2)/n |
182 | * s^2 = ------------------------------- | |
183 | * n - 1 | |
63d40deb PZ |
184 | * |
185 | * http://en.wikipedia.org/wiki/Stddev | |
186 | * | |
187 | * The std dev of the mean is related to the std dev by: | |
188 | * | |
189 | * s | |
190 | * s_mean = ------- | |
191 | * sqrt(n) | |
192 | * | |
506d4bc8 PZ |
193 | */ |
194 | static double stddev_stats(struct stats *stats) | |
195 | { | |
8a02631a PZ |
196 | double variance = stats->M2 / (stats->n - 1); |
197 | double variance_mean = variance / stats->n; | |
42202dd5 | 198 | |
63d40deb | 199 | return sqrt(variance_mean); |
506d4bc8 | 200 | } |
42202dd5 | 201 | |
f5b4a9c3 SE |
202 | struct stats runtime_nsecs_stats[MAX_NR_CPUS]; |
203 | struct stats runtime_cycles_stats[MAX_NR_CPUS]; | |
481f988a | 204 | struct stats runtime_stalled_cycles_stats[MAX_NR_CPUS]; |
f5b4a9c3 | 205 | struct stats runtime_branches_stats[MAX_NR_CPUS]; |
d58f4c82 | 206 | struct stats runtime_cacherefs_stats[MAX_NR_CPUS]; |
8bb6c79f | 207 | struct stats runtime_l1_dcache_stats[MAX_NR_CPUS]; |
506d4bc8 | 208 | struct stats walltime_nsecs_stats; |
be1ac0d8 | 209 | |
48290609 | 210 | static int create_perf_stat_counter(struct perf_evsel *evsel) |
ddcacfa0 | 211 | { |
69aad6f1 | 212 | struct perf_event_attr *attr = &evsel->attr; |
16c8a109 | 213 | |
ddcacfa0 | 214 | if (scale) |
a21ca2ca IM |
215 | attr->read_format = PERF_FORMAT_TOTAL_TIME_ENABLED | |
216 | PERF_FORMAT_TOTAL_TIME_RUNNING; | |
ddcacfa0 | 217 | |
5d2cd909 ACM |
218 | attr->inherit = !no_inherit; |
219 | ||
48290609 | 220 | if (system_wide) |
5d2cd909 | 221 | return perf_evsel__open_per_cpu(evsel, evsel_list->cpus, false); |
48290609 | 222 | |
48290609 ACM |
223 | if (target_pid == -1 && target_tid == -1) { |
224 | attr->disabled = 1; | |
225 | attr->enable_on_exec = 1; | |
ddcacfa0 | 226 | } |
084ab9f8 | 227 | |
5d2cd909 | 228 | return perf_evsel__open_per_thread(evsel, evsel_list->threads, false); |
ddcacfa0 IM |
229 | } |
230 | ||
c04f5e5d IM |
231 | /* |
232 | * Does the counter have nsecs as a unit? | |
233 | */ | |
daec78a0 | 234 | static inline int nsec_counter(struct perf_evsel *evsel) |
c04f5e5d | 235 | { |
daec78a0 ACM |
236 | if (perf_evsel__match(evsel, SOFTWARE, SW_CPU_CLOCK) || |
237 | perf_evsel__match(evsel, SOFTWARE, SW_TASK_CLOCK)) | |
c04f5e5d IM |
238 | return 1; |
239 | ||
240 | return 0; | |
241 | } | |
242 | ||
dcd9936a IM |
243 | /* |
244 | * Update various tracking values we maintain to print | |
245 | * more semantic information such as miss/hit ratios, | |
246 | * instruction rates, etc: | |
247 | */ | |
248 | static void update_shadow_stats(struct perf_evsel *counter, u64 *count) | |
249 | { | |
250 | if (perf_evsel__match(counter, SOFTWARE, SW_TASK_CLOCK)) | |
251 | update_stats(&runtime_nsecs_stats[0], count[0]); | |
252 | else if (perf_evsel__match(counter, HARDWARE, HW_CPU_CYCLES)) | |
253 | update_stats(&runtime_cycles_stats[0], count[0]); | |
129c04cb | 254 | else if (perf_evsel__match(counter, HARDWARE, HW_STALLED_CYCLES_BACKEND)) |
481f988a | 255 | update_stats(&runtime_stalled_cycles_stats[0], count[0]); |
dcd9936a IM |
256 | else if (perf_evsel__match(counter, HARDWARE, HW_BRANCH_INSTRUCTIONS)) |
257 | update_stats(&runtime_branches_stats[0], count[0]); | |
258 | else if (perf_evsel__match(counter, HARDWARE, HW_CACHE_REFERENCES)) | |
259 | update_stats(&runtime_cacherefs_stats[0], count[0]); | |
8bb6c79f IM |
260 | else if (perf_evsel__match(counter, HW_CACHE, HW_CACHE_L1D)) |
261 | update_stats(&runtime_l1_dcache_stats[0], count[0]); | |
dcd9936a IM |
262 | } |
263 | ||
c04f5e5d | 264 | /* |
2996f5dd | 265 | * Read out the results of a single counter: |
f5b4a9c3 | 266 | * aggregate counts across CPUs in system-wide mode |
c04f5e5d | 267 | */ |
c52b12ed | 268 | static int read_counter_aggr(struct perf_evsel *counter) |
c04f5e5d | 269 | { |
69aad6f1 | 270 | struct perf_stat *ps = counter->priv; |
c52b12ed ACM |
271 | u64 *count = counter->counts->aggr.values; |
272 | int i; | |
2996f5dd | 273 | |
7e2ed097 ACM |
274 | if (__perf_evsel__read(counter, evsel_list->cpus->nr, |
275 | evsel_list->threads->nr, scale) < 0) | |
c52b12ed | 276 | return -1; |
9e9772c4 PZ |
277 | |
278 | for (i = 0; i < 3; i++) | |
69aad6f1 | 279 | update_stats(&ps->res_stats[i], count[i]); |
9e9772c4 PZ |
280 | |
281 | if (verbose) { | |
9486aa38 ACM |
282 | fprintf(stderr, "%s: %" PRIu64 " %" PRIu64 " %" PRIu64 "\n", |
283 | event_name(counter), count[0], count[1], count[2]); | |
9e9772c4 PZ |
284 | } |
285 | ||
be1ac0d8 IM |
286 | /* |
287 | * Save the full runtime - to allow normalization during printout: | |
288 | */ | |
dcd9936a | 289 | update_shadow_stats(counter, count); |
c52b12ed ACM |
290 | |
291 | return 0; | |
f5b4a9c3 SE |
292 | } |
293 | ||
294 | /* | |
295 | * Read out the results of a single counter: | |
296 | * do not aggregate counts across CPUs in system-wide mode | |
297 | */ | |
c52b12ed | 298 | static int read_counter(struct perf_evsel *counter) |
f5b4a9c3 | 299 | { |
c52b12ed | 300 | u64 *count; |
f5b4a9c3 | 301 | int cpu; |
f5b4a9c3 | 302 | |
7e2ed097 | 303 | for (cpu = 0; cpu < evsel_list->cpus->nr; cpu++) { |
c52b12ed ACM |
304 | if (__perf_evsel__read_on_cpu(counter, cpu, 0, scale) < 0) |
305 | return -1; | |
f5b4a9c3 | 306 | |
c52b12ed | 307 | count = counter->counts->cpu[cpu].values; |
f5b4a9c3 | 308 | |
dcd9936a | 309 | update_shadow_stats(counter, count); |
f5b4a9c3 | 310 | } |
c52b12ed ACM |
311 | |
312 | return 0; | |
2996f5dd IM |
313 | } |
314 | ||
f37a291c | 315 | static int run_perf_stat(int argc __used, const char **argv) |
42202dd5 IM |
316 | { |
317 | unsigned long long t0, t1; | |
69aad6f1 | 318 | struct perf_evsel *counter; |
42202dd5 | 319 | int status = 0; |
051ae7f7 | 320 | int child_ready_pipe[2], go_pipe[2]; |
6be2850e | 321 | const bool forks = (argc > 0); |
051ae7f7 | 322 | char buf; |
42202dd5 | 323 | |
60666c63 | 324 | if (forks && (pipe(child_ready_pipe) < 0 || pipe(go_pipe) < 0)) { |
051ae7f7 PM |
325 | perror("failed to create pipes"); |
326 | exit(1); | |
327 | } | |
328 | ||
60666c63 | 329 | if (forks) { |
6be2850e | 330 | if ((child_pid = fork()) < 0) |
60666c63 LW |
331 | perror("failed to fork"); |
332 | ||
6be2850e | 333 | if (!child_pid) { |
60666c63 LW |
334 | close(child_ready_pipe[0]); |
335 | close(go_pipe[1]); | |
336 | fcntl(go_pipe[0], F_SETFD, FD_CLOEXEC); | |
337 | ||
338 | /* | |
339 | * Do a dummy execvp to get the PLT entry resolved, | |
340 | * so we avoid the resolver overhead on the real | |
341 | * execvp call. | |
342 | */ | |
343 | execvp("", (char **)argv); | |
344 | ||
345 | /* | |
346 | * Tell the parent we're ready to go | |
347 | */ | |
348 | close(child_ready_pipe[1]); | |
349 | ||
350 | /* | |
351 | * Wait until the parent tells us to go. | |
352 | */ | |
353 | if (read(go_pipe[0], &buf, 1) == -1) | |
354 | perror("unable to read pipe"); | |
355 | ||
356 | execvp(argv[0], (char **)argv); | |
357 | ||
358 | perror(argv[0]); | |
359 | exit(-1); | |
360 | } | |
051ae7f7 | 361 | |
d6d901c2 | 362 | if (target_tid == -1 && target_pid == -1 && !system_wide) |
7e2ed097 | 363 | evsel_list->threads->map[0] = child_pid; |
d6d901c2 | 364 | |
051ae7f7 | 365 | /* |
60666c63 | 366 | * Wait for the child to be ready to exec. |
051ae7f7 PM |
367 | */ |
368 | close(child_ready_pipe[1]); | |
60666c63 LW |
369 | close(go_pipe[0]); |
370 | if (read(child_ready_pipe[0], &buf, 1) == -1) | |
a92bef0f | 371 | perror("unable to read pipe"); |
60666c63 | 372 | close(child_ready_pipe[0]); |
051ae7f7 PM |
373 | } |
374 | ||
361c99a6 | 375 | list_for_each_entry(counter, &evsel_list->entries, node) { |
48290609 | 376 | if (create_perf_stat_counter(counter) < 0) { |
ede70290 IM |
377 | if (errno == EINVAL || errno == ENOSYS) |
378 | continue; | |
379 | ||
380 | if (errno == EPERM || errno == EACCES) { | |
48290609 ACM |
381 | error("You may not have permission to collect %sstats.\n" |
382 | "\t Consider tweaking" | |
383 | " /proc/sys/kernel/perf_event_paranoid or running as root.", | |
384 | system_wide ? "system-wide " : ""); | |
5a3446bc DA |
385 | } else if (errno == ENOENT) { |
386 | error("%s event is not supported. ", event_name(counter)); | |
48290609 ACM |
387 | } else { |
388 | error("open_counter returned with %d (%s). " | |
389 | "/bin/dmesg may provide additional information.\n", | |
390 | errno, strerror(errno)); | |
391 | } | |
392 | if (child_pid != -1) | |
393 | kill(child_pid, SIGTERM); | |
394 | die("Not all events could be opened.\n"); | |
395 | return -1; | |
396 | } | |
084ab9f8 | 397 | } |
42202dd5 | 398 | |
cfd748ae FW |
399 | if (perf_evlist__set_filters(evsel_list)) { |
400 | error("failed to set filter with %d (%s)\n", errno, | |
401 | strerror(errno)); | |
402 | return -1; | |
403 | } | |
404 | ||
42202dd5 IM |
405 | /* |
406 | * Enable counters and exec the command: | |
407 | */ | |
408 | t0 = rdclock(); | |
42202dd5 | 409 | |
60666c63 LW |
410 | if (forks) { |
411 | close(go_pipe[1]); | |
412 | wait(&status); | |
413 | } else { | |
6be2850e | 414 | while(!done) sleep(1); |
60666c63 | 415 | } |
42202dd5 | 416 | |
42202dd5 IM |
417 | t1 = rdclock(); |
418 | ||
9e9772c4 | 419 | update_stats(&walltime_nsecs_stats, t1 - t0); |
42202dd5 | 420 | |
f5b4a9c3 | 421 | if (no_aggr) { |
361c99a6 | 422 | list_for_each_entry(counter, &evsel_list->entries, node) { |
f5b4a9c3 | 423 | read_counter(counter); |
7e2ed097 | 424 | perf_evsel__close_fd(counter, evsel_list->cpus->nr, 1); |
c52b12ed | 425 | } |
f5b4a9c3 | 426 | } else { |
361c99a6 | 427 | list_for_each_entry(counter, &evsel_list->entries, node) { |
f5b4a9c3 | 428 | read_counter_aggr(counter); |
7e2ed097 ACM |
429 | perf_evsel__close_fd(counter, evsel_list->cpus->nr, |
430 | evsel_list->threads->nr); | |
c52b12ed | 431 | } |
f5b4a9c3 | 432 | } |
c52b12ed | 433 | |
42202dd5 IM |
434 | return WEXITSTATUS(status); |
435 | } | |
436 | ||
f99844cb IM |
437 | static void print_noise_pct(double total, double avg) |
438 | { | |
439 | double pct = 0.0; | |
440 | ||
441 | if (avg) | |
442 | pct = 100.0*total/avg; | |
443 | ||
444 | fprintf(stderr, " ( +-%6.2f%% )", pct); | |
445 | } | |
446 | ||
69aad6f1 | 447 | static void print_noise(struct perf_evsel *evsel, double avg) |
42202dd5 | 448 | { |
69aad6f1 ACM |
449 | struct perf_stat *ps; |
450 | ||
849abde9 PZ |
451 | if (run_count == 1) |
452 | return; | |
453 | ||
69aad6f1 | 454 | ps = evsel->priv; |
f99844cb | 455 | print_noise_pct(stddev_stats(&ps->res_stats[0]), avg); |
42202dd5 IM |
456 | } |
457 | ||
daec78a0 | 458 | static void nsec_printout(int cpu, struct perf_evsel *evsel, double avg) |
44175b6f | 459 | { |
506d4bc8 | 460 | double msecs = avg / 1e6; |
d7470b6a SE |
461 | char cpustr[16] = { '\0', }; |
462 | const char *fmt = csv_output ? "%s%.6f%s%s" : "%s%18.6f%s%-24s"; | |
44175b6f | 463 | |
f5b4a9c3 | 464 | if (no_aggr) |
d7470b6a SE |
465 | sprintf(cpustr, "CPU%*d%s", |
466 | csv_output ? 0 : -4, | |
7e2ed097 | 467 | evsel_list->cpus->map[cpu], csv_sep); |
d7470b6a | 468 | |
daec78a0 | 469 | fprintf(stderr, fmt, cpustr, msecs, csv_sep, event_name(evsel)); |
d7470b6a | 470 | |
023695d9 SE |
471 | if (evsel->cgrp) |
472 | fprintf(stderr, "%s%s", csv_sep, evsel->cgrp->name); | |
473 | ||
d7470b6a SE |
474 | if (csv_output) |
475 | return; | |
44175b6f | 476 | |
daec78a0 | 477 | if (perf_evsel__match(evsel, SOFTWARE, SW_TASK_CLOCK)) |
481f988a | 478 | fprintf(stderr, " # %8.3f CPUs utilized ", avg / avg_stats(&walltime_nsecs_stats)); |
44175b6f IM |
479 | } |
480 | ||
a5d243d0 IM |
481 | static void print_stalled_cycles(int cpu, struct perf_evsel *evsel __used, double avg) |
482 | { | |
483 | double total, ratio = 0.0; | |
484 | const char *color; | |
485 | ||
486 | total = avg_stats(&runtime_cycles_stats[cpu]); | |
487 | ||
488 | if (total) | |
489 | ratio = avg / total * 100.0; | |
490 | ||
491 | color = PERF_COLOR_NORMAL; | |
492 | if (ratio > 75.0) | |
493 | color = PERF_COLOR_RED; | |
494 | else if (ratio > 50.0) | |
495 | color = PERF_COLOR_MAGENTA; | |
496 | else if (ratio > 25.0) | |
497 | color = PERF_COLOR_YELLOW; | |
498 | ||
499 | fprintf(stderr, " # "); | |
500 | color_fprintf(stderr, color, "%5.2f%%", ratio); | |
501 | fprintf(stderr, " of all cycles are idle "); | |
502 | } | |
503 | ||
c78df6c1 IM |
504 | static void print_branch_misses(int cpu, struct perf_evsel *evsel __used, double avg) |
505 | { | |
506 | double total, ratio = 0.0; | |
507 | const char *color; | |
508 | ||
509 | total = avg_stats(&runtime_branches_stats[cpu]); | |
510 | ||
511 | if (total) | |
512 | ratio = avg / total * 100.0; | |
513 | ||
514 | color = PERF_COLOR_NORMAL; | |
515 | if (ratio > 20.0) | |
516 | color = PERF_COLOR_RED; | |
517 | else if (ratio > 10.0) | |
518 | color = PERF_COLOR_MAGENTA; | |
519 | else if (ratio > 5.0) | |
520 | color = PERF_COLOR_YELLOW; | |
521 | ||
522 | fprintf(stderr, " # "); | |
523 | color_fprintf(stderr, color, "%5.2f%%", ratio); | |
524 | fprintf(stderr, " of all branches "); | |
525 | } | |
526 | ||
8bb6c79f IM |
527 | static void print_l1_dcache_misses(int cpu, struct perf_evsel *evsel __used, double avg) |
528 | { | |
529 | double total, ratio = 0.0; | |
530 | const char *color; | |
531 | ||
532 | total = avg_stats(&runtime_l1_dcache_stats[cpu]); | |
533 | ||
534 | if (total) | |
535 | ratio = avg / total * 100.0; | |
536 | ||
537 | color = PERF_COLOR_NORMAL; | |
538 | if (ratio > 20.0) | |
539 | color = PERF_COLOR_RED; | |
540 | else if (ratio > 10.0) | |
541 | color = PERF_COLOR_MAGENTA; | |
542 | else if (ratio > 5.0) | |
543 | color = PERF_COLOR_YELLOW; | |
544 | ||
545 | fprintf(stderr, " # "); | |
546 | color_fprintf(stderr, color, "%5.2f%%", ratio); | |
547 | fprintf(stderr, " of all L1-dcache hits "); | |
548 | } | |
549 | ||
daec78a0 | 550 | static void abs_printout(int cpu, struct perf_evsel *evsel, double avg) |
44175b6f | 551 | { |
c7f7fea3 | 552 | double total, ratio = 0.0; |
f5b4a9c3 | 553 | char cpustr[16] = { '\0', }; |
d7470b6a SE |
554 | const char *fmt; |
555 | ||
556 | if (csv_output) | |
557 | fmt = "%s%.0f%s%s"; | |
558 | else if (big_num) | |
559 | fmt = "%s%'18.0f%s%-24s"; | |
560 | else | |
561 | fmt = "%s%18.0f%s%-24s"; | |
f5b4a9c3 SE |
562 | |
563 | if (no_aggr) | |
d7470b6a SE |
564 | sprintf(cpustr, "CPU%*d%s", |
565 | csv_output ? 0 : -4, | |
7e2ed097 | 566 | evsel_list->cpus->map[cpu], csv_sep); |
f5b4a9c3 SE |
567 | else |
568 | cpu = 0; | |
c7f7fea3 | 569 | |
daec78a0 | 570 | fprintf(stderr, fmt, cpustr, avg, csv_sep, event_name(evsel)); |
d7470b6a | 571 | |
023695d9 SE |
572 | if (evsel->cgrp) |
573 | fprintf(stderr, "%s%s", csv_sep, evsel->cgrp->name); | |
574 | ||
d7470b6a SE |
575 | if (csv_output) |
576 | return; | |
44175b6f | 577 | |
daec78a0 | 578 | if (perf_evsel__match(evsel, HARDWARE, HW_INSTRUCTIONS)) { |
f5b4a9c3 | 579 | total = avg_stats(&runtime_cycles_stats[cpu]); |
c7f7fea3 IM |
580 | |
581 | if (total) | |
582 | ratio = avg / total; | |
583 | ||
9ceb1c3d | 584 | fprintf(stderr, " # %4.2f insns per cycle ", ratio); |
481f988a IM |
585 | |
586 | total = avg_stats(&runtime_stalled_cycles_stats[cpu]); | |
587 | ||
588 | if (total && avg) { | |
589 | ratio = total / avg; | |
590 | fprintf(stderr, "\n # %4.2f stalled cycles per insn", ratio); | |
591 | } | |
592 | ||
daec78a0 | 593 | } else if (perf_evsel__match(evsel, HARDWARE, HW_BRANCH_MISSES) && |
f5b4a9c3 | 594 | runtime_branches_stats[cpu].n != 0) { |
c78df6c1 | 595 | print_branch_misses(cpu, evsel, avg); |
8bb6c79f IM |
596 | } else if ( |
597 | evsel->attr.type == PERF_TYPE_HW_CACHE && | |
598 | evsel->attr.config == ( PERF_COUNT_HW_CACHE_L1D | | |
599 | ((PERF_COUNT_HW_CACHE_OP_READ) << 8) | | |
600 | ((PERF_COUNT_HW_CACHE_RESULT_MISS) << 16)) && | |
c6264def | 601 | runtime_l1_dcache_stats[cpu].n != 0) { |
8bb6c79f | 602 | print_l1_dcache_misses(cpu, evsel, avg); |
d58f4c82 IM |
603 | } else if (perf_evsel__match(evsel, HARDWARE, HW_CACHE_MISSES) && |
604 | runtime_cacherefs_stats[cpu].n != 0) { | |
605 | total = avg_stats(&runtime_cacherefs_stats[cpu]); | |
606 | ||
607 | if (total) | |
608 | ratio = avg * 100 / total; | |
609 | ||
481f988a | 610 | fprintf(stderr, " # %8.3f %% of all cache refs ", ratio); |
d58f4c82 | 611 | |
129c04cb | 612 | } else if (perf_evsel__match(evsel, HARDWARE, HW_STALLED_CYCLES_BACKEND)) { |
a5d243d0 | 613 | print_stalled_cycles(cpu, evsel, avg); |
481f988a | 614 | } else if (perf_evsel__match(evsel, HARDWARE, HW_CPU_CYCLES)) { |
f5b4a9c3 | 615 | total = avg_stats(&runtime_nsecs_stats[cpu]); |
c7f7fea3 IM |
616 | |
617 | if (total) | |
481f988a | 618 | ratio = 1.0 * avg / total; |
c7f7fea3 | 619 | |
481f988a IM |
620 | fprintf(stderr, " # %8.3f GHz ", ratio); |
621 | } else if (runtime_nsecs_stats[cpu].n != 0) { | |
622 | total = avg_stats(&runtime_nsecs_stats[cpu]); | |
11ba2b85 IM |
623 | |
624 | if (total) | |
481f988a | 625 | ratio = 1000.0 * avg / total; |
11ba2b85 | 626 | |
481f988a | 627 | fprintf(stderr, " # %8.3f M/sec ", ratio); |
a5d243d0 IM |
628 | } else { |
629 | fprintf(stderr, " "); | |
44175b6f | 630 | } |
44175b6f IM |
631 | } |
632 | ||
2996f5dd IM |
633 | /* |
634 | * Print out the results of a single counter: | |
f5b4a9c3 | 635 | * aggregated counts in system-wide mode |
2996f5dd | 636 | */ |
69aad6f1 | 637 | static void print_counter_aggr(struct perf_evsel *counter) |
2996f5dd | 638 | { |
69aad6f1 ACM |
639 | struct perf_stat *ps = counter->priv; |
640 | double avg = avg_stats(&ps->res_stats[0]); | |
c52b12ed | 641 | int scaled = counter->counts->scaled; |
2996f5dd | 642 | |
2996f5dd | 643 | if (scaled == -1) { |
023695d9 | 644 | fprintf(stderr, "%*s%s%*s", |
d7470b6a | 645 | csv_output ? 0 : 18, |
023695d9 SE |
646 | "<not counted>", |
647 | csv_sep, | |
648 | csv_output ? 0 : -24, | |
649 | event_name(counter)); | |
650 | ||
651 | if (counter->cgrp) | |
652 | fprintf(stderr, "%s%s", csv_sep, counter->cgrp->name); | |
653 | ||
654 | fputc('\n', stderr); | |
2996f5dd IM |
655 | return; |
656 | } | |
c04f5e5d | 657 | |
44175b6f | 658 | if (nsec_counter(counter)) |
f5b4a9c3 | 659 | nsec_printout(-1, counter, avg); |
44175b6f | 660 | else |
f5b4a9c3 | 661 | abs_printout(-1, counter, avg); |
849abde9 | 662 | |
d7470b6a SE |
663 | if (csv_output) { |
664 | fputc('\n', stderr); | |
665 | return; | |
666 | } | |
667 | ||
849abde9 | 668 | print_noise(counter, avg); |
506d4bc8 PZ |
669 | |
670 | if (scaled) { | |
671 | double avg_enabled, avg_running; | |
672 | ||
69aad6f1 ACM |
673 | avg_enabled = avg_stats(&ps->res_stats[1]); |
674 | avg_running = avg_stats(&ps->res_stats[2]); | |
d7c29318 | 675 | |
c6264def | 676 | fprintf(stderr, " (%.2f%%)", 100 * avg_running / avg_enabled); |
506d4bc8 | 677 | } |
c04f5e5d IM |
678 | fprintf(stderr, "\n"); |
679 | } | |
680 | ||
f5b4a9c3 SE |
681 | /* |
682 | * Print out the results of a single counter: | |
683 | * does not use aggregated count in system-wide | |
684 | */ | |
69aad6f1 | 685 | static void print_counter(struct perf_evsel *counter) |
f5b4a9c3 SE |
686 | { |
687 | u64 ena, run, val; | |
688 | int cpu; | |
689 | ||
7e2ed097 | 690 | for (cpu = 0; cpu < evsel_list->cpus->nr; cpu++) { |
c52b12ed ACM |
691 | val = counter->counts->cpu[cpu].val; |
692 | ena = counter->counts->cpu[cpu].ena; | |
693 | run = counter->counts->cpu[cpu].run; | |
f5b4a9c3 | 694 | if (run == 0 || ena == 0) { |
023695d9 | 695 | fprintf(stderr, "CPU%*d%s%*s%s%*s", |
d7470b6a | 696 | csv_output ? 0 : -4, |
7e2ed097 | 697 | evsel_list->cpus->map[cpu], csv_sep, |
d7470b6a SE |
698 | csv_output ? 0 : 18, |
699 | "<not counted>", csv_sep, | |
023695d9 | 700 | csv_output ? 0 : -24, |
d7470b6a | 701 | event_name(counter)); |
f5b4a9c3 | 702 | |
023695d9 SE |
703 | if (counter->cgrp) |
704 | fprintf(stderr, "%s%s", csv_sep, counter->cgrp->name); | |
705 | ||
706 | fputc('\n', stderr); | |
f5b4a9c3 SE |
707 | continue; |
708 | } | |
709 | ||
710 | if (nsec_counter(counter)) | |
711 | nsec_printout(cpu, counter, val); | |
712 | else | |
713 | abs_printout(cpu, counter, val); | |
714 | ||
d7470b6a SE |
715 | if (!csv_output) { |
716 | print_noise(counter, 1.0); | |
f5b4a9c3 | 717 | |
c6264def IM |
718 | if (run != ena) |
719 | fprintf(stderr, " (%.2f%%)", 100.0 * run / ena); | |
f5b4a9c3 | 720 | } |
023695d9 | 721 | fputc('\n', stderr); |
f5b4a9c3 SE |
722 | } |
723 | } | |
724 | ||
42202dd5 IM |
725 | static void print_stat(int argc, const char **argv) |
726 | { | |
69aad6f1 ACM |
727 | struct perf_evsel *counter; |
728 | int i; | |
42202dd5 | 729 | |
ddcacfa0 IM |
730 | fflush(stdout); |
731 | ||
d7470b6a SE |
732 | if (!csv_output) { |
733 | fprintf(stderr, "\n"); | |
734 | fprintf(stderr, " Performance counter stats for "); | |
735 | if(target_pid == -1 && target_tid == -1) { | |
736 | fprintf(stderr, "\'%s", argv[0]); | |
737 | for (i = 1; i < argc; i++) | |
738 | fprintf(stderr, " %s", argv[i]); | |
739 | } else if (target_pid != -1) | |
740 | fprintf(stderr, "process id \'%d", target_pid); | |
741 | else | |
742 | fprintf(stderr, "thread id \'%d", target_tid); | |
44db76c8 | 743 | |
d7470b6a SE |
744 | fprintf(stderr, "\'"); |
745 | if (run_count > 1) | |
746 | fprintf(stderr, " (%d runs)", run_count); | |
747 | fprintf(stderr, ":\n\n"); | |
748 | } | |
2996f5dd | 749 | |
f5b4a9c3 | 750 | if (no_aggr) { |
361c99a6 | 751 | list_for_each_entry(counter, &evsel_list->entries, node) |
f5b4a9c3 SE |
752 | print_counter(counter); |
753 | } else { | |
361c99a6 | 754 | list_for_each_entry(counter, &evsel_list->entries, node) |
f5b4a9c3 SE |
755 | print_counter_aggr(counter); |
756 | } | |
ddcacfa0 | 757 | |
d7470b6a SE |
758 | if (!csv_output) { |
759 | fprintf(stderr, "\n"); | |
760 | fprintf(stderr, " %18.9f seconds time elapsed", | |
761 | avg_stats(&walltime_nsecs_stats)/1e9); | |
762 | if (run_count > 1) { | |
f99844cb IM |
763 | print_noise_pct(stddev_stats(&walltime_nsecs_stats), |
764 | avg_stats(&walltime_nsecs_stats)); | |
d7470b6a SE |
765 | } |
766 | fprintf(stderr, "\n\n"); | |
566747e6 | 767 | } |
ddcacfa0 IM |
768 | } |
769 | ||
f7b7c26e PZ |
770 | static volatile int signr = -1; |
771 | ||
5242519b | 772 | static void skip_signal(int signo) |
ddcacfa0 | 773 | { |
6be2850e | 774 | if(child_pid == -1) |
60666c63 LW |
775 | done = 1; |
776 | ||
f7b7c26e PZ |
777 | signr = signo; |
778 | } | |
779 | ||
780 | static void sig_atexit(void) | |
781 | { | |
933da83a CW |
782 | if (child_pid != -1) |
783 | kill(child_pid, SIGTERM); | |
784 | ||
f7b7c26e PZ |
785 | if (signr == -1) |
786 | return; | |
787 | ||
788 | signal(signr, SIG_DFL); | |
789 | kill(getpid(), signr); | |
5242519b IM |
790 | } |
791 | ||
792 | static const char * const stat_usage[] = { | |
60666c63 | 793 | "perf stat [<options>] [<command>]", |
5242519b IM |
794 | NULL |
795 | }; | |
796 | ||
d7470b6a SE |
797 | static int stat__set_big_num(const struct option *opt __used, |
798 | const char *s __used, int unset) | |
799 | { | |
800 | big_num_opt = unset ? 0 : 1; | |
801 | return 0; | |
802 | } | |
803 | ||
5242519b | 804 | static const struct option options[] = { |
361c99a6 | 805 | OPT_CALLBACK('e', "event", &evsel_list, "event", |
86847b62 TG |
806 | "event selector. use 'perf list' to list available events", |
807 | parse_events), | |
cfd748ae FW |
808 | OPT_CALLBACK(0, "filter", &evsel_list, "filter", |
809 | "event filter", parse_filter), | |
2e6cdf99 SE |
810 | OPT_BOOLEAN('i', "no-inherit", &no_inherit, |
811 | "child tasks do not inherit counters"), | |
5242519b | 812 | OPT_INTEGER('p', "pid", &target_pid, |
d6d901c2 ZY |
813 | "stat events on existing process id"), |
814 | OPT_INTEGER('t', "tid", &target_tid, | |
815 | "stat events on existing thread id"), | |
5242519b | 816 | OPT_BOOLEAN('a', "all-cpus", &system_wide, |
3d632595 | 817 | "system-wide collection from all CPUs"), |
b26bc5a7 | 818 | OPT_BOOLEAN('c', "scale", &scale, |
3d632595 | 819 | "scale/normalize counters"), |
c0555642 | 820 | OPT_INCR('v', "verbose", &verbose, |
743ee1f8 | 821 | "be more verbose (show counter open errors, etc)"), |
42202dd5 IM |
822 | OPT_INTEGER('r', "repeat", &run_count, |
823 | "repeat command and print average + stddev (max: 100)"), | |
0cfb7a13 IM |
824 | OPT_BOOLEAN('n', "null", &null_run, |
825 | "null run - dont start any counters"), | |
c6264def IM |
826 | OPT_BOOLEAN('d', "detailed", &detailed_run, |
827 | "detailed run - start a lot of events"), | |
f9cef0a9 IM |
828 | OPT_BOOLEAN('S', "sync", &sync_run, |
829 | "call sync() before starting a run"), | |
d7470b6a SE |
830 | OPT_CALLBACK_NOOPT('B', "big-num", NULL, NULL, |
831 | "print large numbers with thousands\' separators", | |
832 | stat__set_big_num), | |
c45c6ea2 SE |
833 | OPT_STRING('C', "cpu", &cpu_list, "cpu", |
834 | "list of cpus to monitor in system-wide"), | |
f5b4a9c3 SE |
835 | OPT_BOOLEAN('A', "no-aggr", &no_aggr, |
836 | "disable CPU count aggregation"), | |
d7470b6a SE |
837 | OPT_STRING('x', "field-separator", &csv_sep, "separator", |
838 | "print counts with custom separator"), | |
023695d9 SE |
839 | OPT_CALLBACK('G', "cgroup", &evsel_list, "name", |
840 | "monitor event in cgroup name only", | |
841 | parse_cgroups), | |
5242519b IM |
842 | OPT_END() |
843 | }; | |
844 | ||
f37a291c | 845 | int cmd_stat(int argc, const char **argv, const char *prefix __used) |
5242519b | 846 | { |
69aad6f1 ACM |
847 | struct perf_evsel *pos; |
848 | int status = -ENOMEM; | |
42202dd5 | 849 | |
5af52b51 SE |
850 | setlocale(LC_ALL, ""); |
851 | ||
7e2ed097 | 852 | evsel_list = perf_evlist__new(NULL, NULL); |
361c99a6 ACM |
853 | if (evsel_list == NULL) |
854 | return -ENOMEM; | |
855 | ||
a0541234 AB |
856 | argc = parse_options(argc, argv, options, stat_usage, |
857 | PARSE_OPT_STOP_AT_NON_OPTION); | |
d7470b6a SE |
858 | |
859 | if (csv_sep) | |
860 | csv_output = true; | |
861 | else | |
862 | csv_sep = DEFAULT_SEPARATOR; | |
863 | ||
864 | /* | |
865 | * let the spreadsheet do the pretty-printing | |
866 | */ | |
867 | if (csv_output) { | |
868 | /* User explicitely passed -B? */ | |
869 | if (big_num_opt == 1) { | |
870 | fprintf(stderr, "-B option not supported with -x\n"); | |
871 | usage_with_options(stat_usage, options); | |
872 | } else /* Nope, so disable big number formatting */ | |
873 | big_num = false; | |
874 | } else if (big_num_opt == 0) /* User passed --no-big-num */ | |
875 | big_num = false; | |
876 | ||
d6d901c2 | 877 | if (!argc && target_pid == -1 && target_tid == -1) |
5242519b | 878 | usage_with_options(stat_usage, options); |
9e9772c4 | 879 | if (run_count <= 0) |
42202dd5 | 880 | usage_with_options(stat_usage, options); |
ddcacfa0 | 881 | |
023695d9 SE |
882 | /* no_aggr, cgroup are for system-wide only */ |
883 | if ((no_aggr || nr_cgroups) && !system_wide) { | |
884 | fprintf(stderr, "both cgroup and no-aggregation " | |
885 | "modes only available in system-wide mode\n"); | |
886 | ||
f5b4a9c3 | 887 | usage_with_options(stat_usage, options); |
023695d9 | 888 | } |
f5b4a9c3 | 889 | |
c3043569 | 890 | /* Set attrs and nr_counters if no event is selected and !null_run */ |
c6264def IM |
891 | if (detailed_run) { |
892 | size_t c; | |
893 | ||
894 | for (c = 0; c < ARRAY_SIZE(detailed_attrs); ++c) { | |
895 | pos = perf_evsel__new(&detailed_attrs[c], c); | |
896 | if (pos == NULL) | |
897 | goto out; | |
898 | perf_evlist__add(evsel_list, pos); | |
899 | } | |
900 | } | |
901 | /* Set attrs and nr_counters if no event is selected and !null_run */ | |
902 | if (!detailed_run && !null_run && !evsel_list->nr_entries) { | |
69aad6f1 ACM |
903 | size_t c; |
904 | ||
69aad6f1 | 905 | for (c = 0; c < ARRAY_SIZE(default_attrs); ++c) { |
361c99a6 | 906 | pos = perf_evsel__new(&default_attrs[c], c); |
69aad6f1 ACM |
907 | if (pos == NULL) |
908 | goto out; | |
361c99a6 | 909 | perf_evlist__add(evsel_list, pos); |
69aad6f1 | 910 | } |
c3043569 | 911 | } |
ddcacfa0 | 912 | |
5c98d466 ACM |
913 | if (target_pid != -1) |
914 | target_tid = target_pid; | |
915 | ||
7e2ed097 ACM |
916 | evsel_list->threads = thread_map__new(target_pid, target_tid); |
917 | if (evsel_list->threads == NULL) { | |
5c98d466 ACM |
918 | pr_err("Problems finding threads of monitor\n"); |
919 | usage_with_options(stat_usage, options); | |
920 | } | |
921 | ||
a12b51c4 | 922 | if (system_wide) |
7e2ed097 | 923 | evsel_list->cpus = cpu_map__new(cpu_list); |
a12b51c4 | 924 | else |
7e2ed097 | 925 | evsel_list->cpus = cpu_map__dummy_new(); |
ddcacfa0 | 926 | |
7e2ed097 | 927 | if (evsel_list->cpus == NULL) { |
60d567e2 | 928 | perror("failed to parse CPUs map"); |
c45c6ea2 | 929 | usage_with_options(stat_usage, options); |
60d567e2 ACM |
930 | return -1; |
931 | } | |
c45c6ea2 | 932 | |
361c99a6 | 933 | list_for_each_entry(pos, &evsel_list->entries, node) { |
c52b12ed | 934 | if (perf_evsel__alloc_stat_priv(pos) < 0 || |
7e2ed097 ACM |
935 | perf_evsel__alloc_counts(pos, evsel_list->cpus->nr) < 0 || |
936 | perf_evsel__alloc_fd(pos, evsel_list->cpus->nr, evsel_list->threads->nr) < 0) | |
69aad6f1 | 937 | goto out_free_fd; |
d6d901c2 ZY |
938 | } |
939 | ||
58d7e993 IM |
940 | /* |
941 | * We dont want to block the signals - that would cause | |
942 | * child tasks to inherit that and Ctrl-C would not work. | |
943 | * What we want is for Ctrl-C to work in the exec()-ed | |
944 | * task, but being ignored by perf stat itself: | |
945 | */ | |
f7b7c26e | 946 | atexit(sig_atexit); |
58d7e993 IM |
947 | signal(SIGINT, skip_signal); |
948 | signal(SIGALRM, skip_signal); | |
949 | signal(SIGABRT, skip_signal); | |
950 | ||
42202dd5 IM |
951 | status = 0; |
952 | for (run_idx = 0; run_idx < run_count; run_idx++) { | |
953 | if (run_count != 1 && verbose) | |
3d632595 | 954 | fprintf(stderr, "[ perf stat: executing run #%d ... ]\n", run_idx + 1); |
f9cef0a9 IM |
955 | |
956 | if (sync_run) | |
957 | sync(); | |
958 | ||
42202dd5 IM |
959 | status = run_perf_stat(argc, argv); |
960 | } | |
961 | ||
084ab9f8 ACM |
962 | if (status != -1) |
963 | print_stat(argc, argv); | |
69aad6f1 | 964 | out_free_fd: |
361c99a6 | 965 | list_for_each_entry(pos, &evsel_list->entries, node) |
69aad6f1 | 966 | perf_evsel__free_stat_priv(pos); |
7e2ed097 | 967 | perf_evlist__delete_maps(evsel_list); |
0015e2e1 ACM |
968 | out: |
969 | perf_evlist__delete(evsel_list); | |
42202dd5 | 970 | return status; |
ddcacfa0 | 971 | } |