Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
[~shefty/rdma-dev.git] / tools / perf / builtin-stat.c
1 /*
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:
8
9    $ perf stat ./hackbench 10
10
11   Time: 0.118
12
13   Performance counter stats for './hackbench 10':
14
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
28
29  *
30  * Copyright (C) 2008-2011, Red Hat Inc, Ingo Molnar <mingo@redhat.com>
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>
39  *   Jaswinder Singh Rajput <jaswinder@kernel.org>
40  *
41  * Released under the GPL v2. (and only v2, not any later version)
42  */
43
44 #include "perf.h"
45 #include "builtin.h"
46 #include "util/util.h"
47 #include "util/parse-options.h"
48 #include "util/parse-events.h"
49 #include "util/event.h"
50 #include "util/evlist.h"
51 #include "util/evsel.h"
52 #include "util/debug.h"
53 #include "util/color.h"
54 #include "util/header.h"
55 #include "util/cpumap.h"
56 #include "util/thread.h"
57 #include "util/thread_map.h"
58
59 #include <sys/prctl.h>
60 #include <math.h>
61 #include <locale.h>
62
63 #define DEFAULT_SEPARATOR       " "
64 #define CNTR_NOT_SUPPORTED      "<not supported>"
65 #define CNTR_NOT_COUNTED        "<not counted>"
66
67 static struct perf_event_attr default_attrs[] = {
68
69   { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_TASK_CLOCK              },
70   { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_CONTEXT_SWITCHES        },
71   { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_CPU_MIGRATIONS          },
72   { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_PAGE_FAULTS             },
73
74   { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_CPU_CYCLES              },
75   { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_STALLED_CYCLES_FRONTEND },
76   { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_STALLED_CYCLES_BACKEND  },
77   { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_INSTRUCTIONS            },
78   { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_BRANCH_INSTRUCTIONS     },
79   { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_BRANCH_MISSES           },
80
81 };
82
83 /*
84  * Detailed stats (-d), covering the L1 and last level data caches:
85  */
86 static struct perf_event_attr detailed_attrs[] = {
87
88   { .type = PERF_TYPE_HW_CACHE,
89     .config =
90          PERF_COUNT_HW_CACHE_L1D                <<  0  |
91         (PERF_COUNT_HW_CACHE_OP_READ            <<  8) |
92         (PERF_COUNT_HW_CACHE_RESULT_ACCESS      << 16)                          },
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_MISS        << 16)                          },
99
100   { .type = PERF_TYPE_HW_CACHE,
101     .config =
102          PERF_COUNT_HW_CACHE_LL                 <<  0  |
103         (PERF_COUNT_HW_CACHE_OP_READ            <<  8) |
104         (PERF_COUNT_HW_CACHE_RESULT_ACCESS      << 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_MISS        << 16)                          },
111 };
112
113 /*
114  * Very detailed stats (-d -d), covering the instruction cache and the TLB caches:
115  */
116 static struct perf_event_attr very_detailed_attrs[] = {
117
118   { .type = PERF_TYPE_HW_CACHE,
119     .config =
120          PERF_COUNT_HW_CACHE_L1I                <<  0  |
121         (PERF_COUNT_HW_CACHE_OP_READ            <<  8) |
122         (PERF_COUNT_HW_CACHE_RESULT_ACCESS      << 16)                          },
123
124   { .type = PERF_TYPE_HW_CACHE,
125     .config =
126          PERF_COUNT_HW_CACHE_L1I                <<  0  |
127         (PERF_COUNT_HW_CACHE_OP_READ            <<  8) |
128         (PERF_COUNT_HW_CACHE_RESULT_MISS        << 16)                          },
129
130   { .type = PERF_TYPE_HW_CACHE,
131     .config =
132          PERF_COUNT_HW_CACHE_DTLB               <<  0  |
133         (PERF_COUNT_HW_CACHE_OP_READ            <<  8) |
134         (PERF_COUNT_HW_CACHE_RESULT_ACCESS      << 16)                          },
135
136   { .type = PERF_TYPE_HW_CACHE,
137     .config =
138          PERF_COUNT_HW_CACHE_DTLB               <<  0  |
139         (PERF_COUNT_HW_CACHE_OP_READ            <<  8) |
140         (PERF_COUNT_HW_CACHE_RESULT_MISS        << 16)                          },
141
142   { .type = PERF_TYPE_HW_CACHE,
143     .config =
144          PERF_COUNT_HW_CACHE_ITLB               <<  0  |
145         (PERF_COUNT_HW_CACHE_OP_READ            <<  8) |
146         (PERF_COUNT_HW_CACHE_RESULT_ACCESS      << 16)                          },
147
148   { .type = PERF_TYPE_HW_CACHE,
149     .config =
150          PERF_COUNT_HW_CACHE_ITLB               <<  0  |
151         (PERF_COUNT_HW_CACHE_OP_READ            <<  8) |
152         (PERF_COUNT_HW_CACHE_RESULT_MISS        << 16)                          },
153
154 };
155
156 /*
157  * Very, very detailed stats (-d -d -d), adding prefetch events:
158  */
159 static struct perf_event_attr very_very_detailed_attrs[] = {
160
161   { .type = PERF_TYPE_HW_CACHE,
162     .config =
163          PERF_COUNT_HW_CACHE_L1D                <<  0  |
164         (PERF_COUNT_HW_CACHE_OP_PREFETCH        <<  8) |
165         (PERF_COUNT_HW_CACHE_RESULT_ACCESS      << 16)                          },
166
167   { .type = PERF_TYPE_HW_CACHE,
168     .config =
169          PERF_COUNT_HW_CACHE_L1D                <<  0  |
170         (PERF_COUNT_HW_CACHE_OP_PREFETCH        <<  8) |
171         (PERF_COUNT_HW_CACHE_RESULT_MISS        << 16)                          },
172 };
173
174
175
176 struct perf_evlist              *evsel_list;
177
178 static bool                     system_wide                     =  false;
179 static int                      run_idx                         =  0;
180
181 static int                      run_count                       =  1;
182 static bool                     no_inherit                      = false;
183 static bool                     scale                           =  true;
184 static bool                     no_aggr                         = false;
185 static pid_t                    target_pid                      = -1;
186 static pid_t                    target_tid                      = -1;
187 static pid_t                    child_pid                       = -1;
188 static bool                     null_run                        =  false;
189 static int                      detailed_run                    =  0;
190 static bool                     sync_run                        =  false;
191 static bool                     big_num                         =  true;
192 static int                      big_num_opt                     =  -1;
193 static const char               *cpu_list;
194 static const char               *csv_sep                        = NULL;
195 static bool                     csv_output                      = false;
196 static bool                     group                           = false;
197 static const char               *output_name                    = NULL;
198 static FILE                     *output                         = NULL;
199 static int                      output_fd;
200
201 static volatile int done = 0;
202
203 struct stats
204 {
205         double n, mean, M2;
206 };
207
208 struct perf_stat {
209         struct stats      res_stats[3];
210 };
211
212 static int perf_evsel__alloc_stat_priv(struct perf_evsel *evsel)
213 {
214         evsel->priv = zalloc(sizeof(struct perf_stat));
215         return evsel->priv == NULL ? -ENOMEM : 0;
216 }
217
218 static void perf_evsel__free_stat_priv(struct perf_evsel *evsel)
219 {
220         free(evsel->priv);
221         evsel->priv = NULL;
222 }
223
224 static void update_stats(struct stats *stats, u64 val)
225 {
226         double delta;
227
228         stats->n++;
229         delta = val - stats->mean;
230         stats->mean += delta / stats->n;
231         stats->M2 += delta*(val - stats->mean);
232 }
233
234 static double avg_stats(struct stats *stats)
235 {
236         return stats->mean;
237 }
238
239 /*
240  * http://en.wikipedia.org/wiki/Algorithms_for_calculating_variance
241  *
242  *       (\Sum n_i^2) - ((\Sum n_i)^2)/n
243  * s^2 = -------------------------------
244  *                  n - 1
245  *
246  * http://en.wikipedia.org/wiki/Stddev
247  *
248  * The std dev of the mean is related to the std dev by:
249  *
250  *             s
251  * s_mean = -------
252  *          sqrt(n)
253  *
254  */
255 static double stddev_stats(struct stats *stats)
256 {
257         double variance, variance_mean;
258
259         if (!stats->n)
260                 return 0.0;
261
262         variance = stats->M2 / (stats->n - 1);
263         variance_mean = variance / stats->n;
264
265         return sqrt(variance_mean);
266 }
267
268 struct stats                    runtime_nsecs_stats[MAX_NR_CPUS];
269 struct stats                    runtime_cycles_stats[MAX_NR_CPUS];
270 struct stats                    runtime_stalled_cycles_front_stats[MAX_NR_CPUS];
271 struct stats                    runtime_stalled_cycles_back_stats[MAX_NR_CPUS];
272 struct stats                    runtime_branches_stats[MAX_NR_CPUS];
273 struct stats                    runtime_cacherefs_stats[MAX_NR_CPUS];
274 struct stats                    runtime_l1_dcache_stats[MAX_NR_CPUS];
275 struct stats                    runtime_l1_icache_stats[MAX_NR_CPUS];
276 struct stats                    runtime_ll_cache_stats[MAX_NR_CPUS];
277 struct stats                    runtime_itlb_cache_stats[MAX_NR_CPUS];
278 struct stats                    runtime_dtlb_cache_stats[MAX_NR_CPUS];
279 struct stats                    walltime_nsecs_stats;
280
281 static int create_perf_stat_counter(struct perf_evsel *evsel,
282                                     struct perf_evsel *first)
283 {
284         struct perf_event_attr *attr = &evsel->attr;
285         struct xyarray *group_fd = NULL;
286
287         if (group && evsel != first)
288                 group_fd = first->fd;
289
290         if (scale)
291                 attr->read_format = PERF_FORMAT_TOTAL_TIME_ENABLED |
292                                     PERF_FORMAT_TOTAL_TIME_RUNNING;
293
294         attr->inherit = !no_inherit;
295
296         if (system_wide)
297                 return perf_evsel__open_per_cpu(evsel, evsel_list->cpus,
298                                                 group, group_fd);
299         if (target_pid == -1 && target_tid == -1) {
300                 attr->disabled = 1;
301                 attr->enable_on_exec = 1;
302         }
303
304         return perf_evsel__open_per_thread(evsel, evsel_list->threads,
305                                            group, group_fd);
306 }
307
308 /*
309  * Does the counter have nsecs as a unit?
310  */
311 static inline int nsec_counter(struct perf_evsel *evsel)
312 {
313         if (perf_evsel__match(evsel, SOFTWARE, SW_CPU_CLOCK) ||
314             perf_evsel__match(evsel, SOFTWARE, SW_TASK_CLOCK))
315                 return 1;
316
317         return 0;
318 }
319
320 /*
321  * Update various tracking values we maintain to print
322  * more semantic information such as miss/hit ratios,
323  * instruction rates, etc:
324  */
325 static void update_shadow_stats(struct perf_evsel *counter, u64 *count)
326 {
327         if (perf_evsel__match(counter, SOFTWARE, SW_TASK_CLOCK))
328                 update_stats(&runtime_nsecs_stats[0], count[0]);
329         else if (perf_evsel__match(counter, HARDWARE, HW_CPU_CYCLES))
330                 update_stats(&runtime_cycles_stats[0], count[0]);
331         else if (perf_evsel__match(counter, HARDWARE, HW_STALLED_CYCLES_FRONTEND))
332                 update_stats(&runtime_stalled_cycles_front_stats[0], count[0]);
333         else if (perf_evsel__match(counter, HARDWARE, HW_STALLED_CYCLES_BACKEND))
334                 update_stats(&runtime_stalled_cycles_back_stats[0], count[0]);
335         else if (perf_evsel__match(counter, HARDWARE, HW_BRANCH_INSTRUCTIONS))
336                 update_stats(&runtime_branches_stats[0], count[0]);
337         else if (perf_evsel__match(counter, HARDWARE, HW_CACHE_REFERENCES))
338                 update_stats(&runtime_cacherefs_stats[0], count[0]);
339         else if (perf_evsel__match(counter, HW_CACHE, HW_CACHE_L1D))
340                 update_stats(&runtime_l1_dcache_stats[0], count[0]);
341         else if (perf_evsel__match(counter, HW_CACHE, HW_CACHE_L1I))
342                 update_stats(&runtime_l1_icache_stats[0], count[0]);
343         else if (perf_evsel__match(counter, HW_CACHE, HW_CACHE_LL))
344                 update_stats(&runtime_ll_cache_stats[0], count[0]);
345         else if (perf_evsel__match(counter, HW_CACHE, HW_CACHE_DTLB))
346                 update_stats(&runtime_dtlb_cache_stats[0], count[0]);
347         else if (perf_evsel__match(counter, HW_CACHE, HW_CACHE_ITLB))
348                 update_stats(&runtime_itlb_cache_stats[0], count[0]);
349 }
350
351 /*
352  * Read out the results of a single counter:
353  * aggregate counts across CPUs in system-wide mode
354  */
355 static int read_counter_aggr(struct perf_evsel *counter)
356 {
357         struct perf_stat *ps = counter->priv;
358         u64 *count = counter->counts->aggr.values;
359         int i;
360
361         if (__perf_evsel__read(counter, evsel_list->cpus->nr,
362                                evsel_list->threads->nr, scale) < 0)
363                 return -1;
364
365         for (i = 0; i < 3; i++)
366                 update_stats(&ps->res_stats[i], count[i]);
367
368         if (verbose) {
369                 fprintf(output, "%s: %" PRIu64 " %" PRIu64 " %" PRIu64 "\n",
370                         event_name(counter), count[0], count[1], count[2]);
371         }
372
373         /*
374          * Save the full runtime - to allow normalization during printout:
375          */
376         update_shadow_stats(counter, count);
377
378         return 0;
379 }
380
381 /*
382  * Read out the results of a single counter:
383  * do not aggregate counts across CPUs in system-wide mode
384  */
385 static int read_counter(struct perf_evsel *counter)
386 {
387         u64 *count;
388         int cpu;
389
390         for (cpu = 0; cpu < evsel_list->cpus->nr; cpu++) {
391                 if (__perf_evsel__read_on_cpu(counter, cpu, 0, scale) < 0)
392                         return -1;
393
394                 count = counter->counts->cpu[cpu].values;
395
396                 update_shadow_stats(counter, count);
397         }
398
399         return 0;
400 }
401
402 static int run_perf_stat(int argc __used, const char **argv)
403 {
404         unsigned long long t0, t1;
405         struct perf_evsel *counter, *first;
406         int status = 0;
407         int child_ready_pipe[2], go_pipe[2];
408         const bool forks = (argc > 0);
409         char buf;
410
411         if (forks && (pipe(child_ready_pipe) < 0 || pipe(go_pipe) < 0)) {
412                 perror("failed to create pipes");
413                 exit(1);
414         }
415
416         if (forks) {
417                 if ((child_pid = fork()) < 0)
418                         perror("failed to fork");
419
420                 if (!child_pid) {
421                         close(child_ready_pipe[0]);
422                         close(go_pipe[1]);
423                         fcntl(go_pipe[0], F_SETFD, FD_CLOEXEC);
424
425                         /*
426                          * Do a dummy execvp to get the PLT entry resolved,
427                          * so we avoid the resolver overhead on the real
428                          * execvp call.
429                          */
430                         execvp("", (char **)argv);
431
432                         /*
433                          * Tell the parent we're ready to go
434                          */
435                         close(child_ready_pipe[1]);
436
437                         /*
438                          * Wait until the parent tells us to go.
439                          */
440                         if (read(go_pipe[0], &buf, 1) == -1)
441                                 perror("unable to read pipe");
442
443                         execvp(argv[0], (char **)argv);
444
445                         perror(argv[0]);
446                         exit(-1);
447                 }
448
449                 if (target_tid == -1 && target_pid == -1 && !system_wide)
450                         evsel_list->threads->map[0] = child_pid;
451
452                 /*
453                  * Wait for the child to be ready to exec.
454                  */
455                 close(child_ready_pipe[1]);
456                 close(go_pipe[0]);
457                 if (read(child_ready_pipe[0], &buf, 1) == -1)
458                         perror("unable to read pipe");
459                 close(child_ready_pipe[0]);
460         }
461
462         first = list_entry(evsel_list->entries.next, struct perf_evsel, node);
463
464         list_for_each_entry(counter, &evsel_list->entries, node) {
465                 if (create_perf_stat_counter(counter, first) < 0) {
466                         if (errno == EINVAL || errno == ENOSYS || errno == ENOENT) {
467                                 if (verbose)
468                                         ui__warning("%s event is not supported by the kernel.\n",
469                                                     event_name(counter));
470                                 counter->supported = false;
471                                 continue;
472                         }
473
474                         if (errno == EPERM || errno == EACCES) {
475                                 error("You may not have permission to collect %sstats.\n"
476                                       "\t Consider tweaking"
477                                       " /proc/sys/kernel/perf_event_paranoid or running as root.",
478                                       system_wide ? "system-wide " : "");
479                         } else {
480                                 error("open_counter returned with %d (%s). "
481                                       "/bin/dmesg may provide additional information.\n",
482                                        errno, strerror(errno));
483                         }
484                         if (child_pid != -1)
485                                 kill(child_pid, SIGTERM);
486                         die("Not all events could be opened.\n");
487                         return -1;
488                 }
489                 counter->supported = true;
490         }
491
492         if (perf_evlist__set_filters(evsel_list)) {
493                 error("failed to set filter with %d (%s)\n", errno,
494                         strerror(errno));
495                 return -1;
496         }
497
498         /*
499          * Enable counters and exec the command:
500          */
501         t0 = rdclock();
502
503         if (forks) {
504                 close(go_pipe[1]);
505                 wait(&status);
506                 if (WIFSIGNALED(status))
507                         psignal(WTERMSIG(status), argv[0]);
508         } else {
509                 while(!done) sleep(1);
510         }
511
512         t1 = rdclock();
513
514         update_stats(&walltime_nsecs_stats, t1 - t0);
515
516         if (no_aggr) {
517                 list_for_each_entry(counter, &evsel_list->entries, node) {
518                         read_counter(counter);
519                         perf_evsel__close_fd(counter, evsel_list->cpus->nr, 1);
520                 }
521         } else {
522                 list_for_each_entry(counter, &evsel_list->entries, node) {
523                         read_counter_aggr(counter);
524                         perf_evsel__close_fd(counter, evsel_list->cpus->nr,
525                                              evsel_list->threads->nr);
526                 }
527         }
528
529         return WEXITSTATUS(status);
530 }
531
532 static void print_noise_pct(double total, double avg)
533 {
534         double pct = 0.0;
535
536         if (avg)
537                 pct = 100.0*total/avg;
538
539         if (csv_output)
540                 fprintf(output, "%s%.2f%%", csv_sep, pct);
541         else if (pct)
542                 fprintf(output, "  ( +-%6.2f%% )", pct);
543 }
544
545 static void print_noise(struct perf_evsel *evsel, double avg)
546 {
547         struct perf_stat *ps;
548
549         if (run_count == 1)
550                 return;
551
552         ps = evsel->priv;
553         print_noise_pct(stddev_stats(&ps->res_stats[0]), avg);
554 }
555
556 static void nsec_printout(int cpu, struct perf_evsel *evsel, double avg)
557 {
558         double msecs = avg / 1e6;
559         char cpustr[16] = { '\0', };
560         const char *fmt = csv_output ? "%s%.6f%s%s" : "%s%18.6f%s%-25s";
561
562         if (no_aggr)
563                 sprintf(cpustr, "CPU%*d%s",
564                         csv_output ? 0 : -4,
565                         evsel_list->cpus->map[cpu], csv_sep);
566
567         fprintf(output, fmt, cpustr, msecs, csv_sep, event_name(evsel));
568
569         if (evsel->cgrp)
570                 fprintf(output, "%s%s", csv_sep, evsel->cgrp->name);
571
572         if (csv_output)
573                 return;
574
575         if (perf_evsel__match(evsel, SOFTWARE, SW_TASK_CLOCK))
576                 fprintf(output, " # %8.3f CPUs utilized          ",
577                         avg / avg_stats(&walltime_nsecs_stats));
578 }
579
580 static void print_stalled_cycles_frontend(int cpu, struct perf_evsel *evsel __used, double avg)
581 {
582         double total, ratio = 0.0;
583         const char *color;
584
585         total = avg_stats(&runtime_cycles_stats[cpu]);
586
587         if (total)
588                 ratio = avg / total * 100.0;
589
590         color = PERF_COLOR_NORMAL;
591         if (ratio > 50.0)
592                 color = PERF_COLOR_RED;
593         else if (ratio > 30.0)
594                 color = PERF_COLOR_MAGENTA;
595         else if (ratio > 10.0)
596                 color = PERF_COLOR_YELLOW;
597
598         fprintf(output, " #  ");
599         color_fprintf(output, color, "%6.2f%%", ratio);
600         fprintf(output, " frontend cycles idle   ");
601 }
602
603 static void print_stalled_cycles_backend(int cpu, struct perf_evsel *evsel __used, double avg)
604 {
605         double total, ratio = 0.0;
606         const char *color;
607
608         total = avg_stats(&runtime_cycles_stats[cpu]);
609
610         if (total)
611                 ratio = avg / total * 100.0;
612
613         color = PERF_COLOR_NORMAL;
614         if (ratio > 75.0)
615                 color = PERF_COLOR_RED;
616         else if (ratio > 50.0)
617                 color = PERF_COLOR_MAGENTA;
618         else if (ratio > 20.0)
619                 color = PERF_COLOR_YELLOW;
620
621         fprintf(output, " #  ");
622         color_fprintf(output, color, "%6.2f%%", ratio);
623         fprintf(output, " backend  cycles idle   ");
624 }
625
626 static void print_branch_misses(int cpu, struct perf_evsel *evsel __used, double avg)
627 {
628         double total, ratio = 0.0;
629         const char *color;
630
631         total = avg_stats(&runtime_branches_stats[cpu]);
632
633         if (total)
634                 ratio = avg / total * 100.0;
635
636         color = PERF_COLOR_NORMAL;
637         if (ratio > 20.0)
638                 color = PERF_COLOR_RED;
639         else if (ratio > 10.0)
640                 color = PERF_COLOR_MAGENTA;
641         else if (ratio > 5.0)
642                 color = PERF_COLOR_YELLOW;
643
644         fprintf(output, " #  ");
645         color_fprintf(output, color, "%6.2f%%", ratio);
646         fprintf(output, " of all branches        ");
647 }
648
649 static void print_l1_dcache_misses(int cpu, struct perf_evsel *evsel __used, double avg)
650 {
651         double total, ratio = 0.0;
652         const char *color;
653
654         total = avg_stats(&runtime_l1_dcache_stats[cpu]);
655
656         if (total)
657                 ratio = avg / total * 100.0;
658
659         color = PERF_COLOR_NORMAL;
660         if (ratio > 20.0)
661                 color = PERF_COLOR_RED;
662         else if (ratio > 10.0)
663                 color = PERF_COLOR_MAGENTA;
664         else if (ratio > 5.0)
665                 color = PERF_COLOR_YELLOW;
666
667         fprintf(output, " #  ");
668         color_fprintf(output, color, "%6.2f%%", ratio);
669         fprintf(output, " of all L1-dcache hits  ");
670 }
671
672 static void print_l1_icache_misses(int cpu, struct perf_evsel *evsel __used, double avg)
673 {
674         double total, ratio = 0.0;
675         const char *color;
676
677         total = avg_stats(&runtime_l1_icache_stats[cpu]);
678
679         if (total)
680                 ratio = avg / total * 100.0;
681
682         color = PERF_COLOR_NORMAL;
683         if (ratio > 20.0)
684                 color = PERF_COLOR_RED;
685         else if (ratio > 10.0)
686                 color = PERF_COLOR_MAGENTA;
687         else if (ratio > 5.0)
688                 color = PERF_COLOR_YELLOW;
689
690         fprintf(output, " #  ");
691         color_fprintf(output, color, "%6.2f%%", ratio);
692         fprintf(output, " of all L1-icache hits  ");
693 }
694
695 static void print_dtlb_cache_misses(int cpu, struct perf_evsel *evsel __used, double avg)
696 {
697         double total, ratio = 0.0;
698         const char *color;
699
700         total = avg_stats(&runtime_dtlb_cache_stats[cpu]);
701
702         if (total)
703                 ratio = avg / total * 100.0;
704
705         color = PERF_COLOR_NORMAL;
706         if (ratio > 20.0)
707                 color = PERF_COLOR_RED;
708         else if (ratio > 10.0)
709                 color = PERF_COLOR_MAGENTA;
710         else if (ratio > 5.0)
711                 color = PERF_COLOR_YELLOW;
712
713         fprintf(output, " #  ");
714         color_fprintf(output, color, "%6.2f%%", ratio);
715         fprintf(output, " of all dTLB cache hits ");
716 }
717
718 static void print_itlb_cache_misses(int cpu, struct perf_evsel *evsel __used, double avg)
719 {
720         double total, ratio = 0.0;
721         const char *color;
722
723         total = avg_stats(&runtime_itlb_cache_stats[cpu]);
724
725         if (total)
726                 ratio = avg / total * 100.0;
727
728         color = PERF_COLOR_NORMAL;
729         if (ratio > 20.0)
730                 color = PERF_COLOR_RED;
731         else if (ratio > 10.0)
732                 color = PERF_COLOR_MAGENTA;
733         else if (ratio > 5.0)
734                 color = PERF_COLOR_YELLOW;
735
736         fprintf(output, " #  ");
737         color_fprintf(output, color, "%6.2f%%", ratio);
738         fprintf(output, " of all iTLB cache hits ");
739 }
740
741 static void print_ll_cache_misses(int cpu, struct perf_evsel *evsel __used, double avg)
742 {
743         double total, ratio = 0.0;
744         const char *color;
745
746         total = avg_stats(&runtime_ll_cache_stats[cpu]);
747
748         if (total)
749                 ratio = avg / total * 100.0;
750
751         color = PERF_COLOR_NORMAL;
752         if (ratio > 20.0)
753                 color = PERF_COLOR_RED;
754         else if (ratio > 10.0)
755                 color = PERF_COLOR_MAGENTA;
756         else if (ratio > 5.0)
757                 color = PERF_COLOR_YELLOW;
758
759         fprintf(output, " #  ");
760         color_fprintf(output, color, "%6.2f%%", ratio);
761         fprintf(output, " of all LL-cache hits   ");
762 }
763
764 static void abs_printout(int cpu, struct perf_evsel *evsel, double avg)
765 {
766         double total, ratio = 0.0;
767         char cpustr[16] = { '\0', };
768         const char *fmt;
769
770         if (csv_output)
771                 fmt = "%s%.0f%s%s";
772         else if (big_num)
773                 fmt = "%s%'18.0f%s%-25s";
774         else
775                 fmt = "%s%18.0f%s%-25s";
776
777         if (no_aggr)
778                 sprintf(cpustr, "CPU%*d%s",
779                         csv_output ? 0 : -4,
780                         evsel_list->cpus->map[cpu], csv_sep);
781         else
782                 cpu = 0;
783
784         fprintf(output, fmt, cpustr, avg, csv_sep, event_name(evsel));
785
786         if (evsel->cgrp)
787                 fprintf(output, "%s%s", csv_sep, evsel->cgrp->name);
788
789         if (csv_output)
790                 return;
791
792         if (perf_evsel__match(evsel, HARDWARE, HW_INSTRUCTIONS)) {
793                 total = avg_stats(&runtime_cycles_stats[cpu]);
794
795                 if (total)
796                         ratio = avg / total;
797
798                 fprintf(output, " #   %5.2f  insns per cycle        ", ratio);
799
800                 total = avg_stats(&runtime_stalled_cycles_front_stats[cpu]);
801                 total = max(total, avg_stats(&runtime_stalled_cycles_back_stats[cpu]));
802
803                 if (total && avg) {
804                         ratio = total / avg;
805                         fprintf(output, "\n                                             #   %5.2f  stalled cycles per insn", ratio);
806                 }
807
808         } else if (perf_evsel__match(evsel, HARDWARE, HW_BRANCH_MISSES) &&
809                         runtime_branches_stats[cpu].n != 0) {
810                 print_branch_misses(cpu, evsel, avg);
811         } else if (
812                 evsel->attr.type == PERF_TYPE_HW_CACHE &&
813                 evsel->attr.config ==  ( PERF_COUNT_HW_CACHE_L1D |
814                                         ((PERF_COUNT_HW_CACHE_OP_READ) << 8) |
815                                         ((PERF_COUNT_HW_CACHE_RESULT_MISS) << 16)) &&
816                         runtime_l1_dcache_stats[cpu].n != 0) {
817                 print_l1_dcache_misses(cpu, evsel, avg);
818         } else if (
819                 evsel->attr.type == PERF_TYPE_HW_CACHE &&
820                 evsel->attr.config ==  ( PERF_COUNT_HW_CACHE_L1I |
821                                         ((PERF_COUNT_HW_CACHE_OP_READ) << 8) |
822                                         ((PERF_COUNT_HW_CACHE_RESULT_MISS) << 16)) &&
823                         runtime_l1_icache_stats[cpu].n != 0) {
824                 print_l1_icache_misses(cpu, evsel, avg);
825         } else if (
826                 evsel->attr.type == PERF_TYPE_HW_CACHE &&
827                 evsel->attr.config ==  ( PERF_COUNT_HW_CACHE_DTLB |
828                                         ((PERF_COUNT_HW_CACHE_OP_READ) << 8) |
829                                         ((PERF_COUNT_HW_CACHE_RESULT_MISS) << 16)) &&
830                         runtime_dtlb_cache_stats[cpu].n != 0) {
831                 print_dtlb_cache_misses(cpu, evsel, avg);
832         } else if (
833                 evsel->attr.type == PERF_TYPE_HW_CACHE &&
834                 evsel->attr.config ==  ( PERF_COUNT_HW_CACHE_ITLB |
835                                         ((PERF_COUNT_HW_CACHE_OP_READ) << 8) |
836                                         ((PERF_COUNT_HW_CACHE_RESULT_MISS) << 16)) &&
837                         runtime_itlb_cache_stats[cpu].n != 0) {
838                 print_itlb_cache_misses(cpu, evsel, avg);
839         } else if (
840                 evsel->attr.type == PERF_TYPE_HW_CACHE &&
841                 evsel->attr.config ==  ( PERF_COUNT_HW_CACHE_LL |
842                                         ((PERF_COUNT_HW_CACHE_OP_READ) << 8) |
843                                         ((PERF_COUNT_HW_CACHE_RESULT_MISS) << 16)) &&
844                         runtime_ll_cache_stats[cpu].n != 0) {
845                 print_ll_cache_misses(cpu, evsel, avg);
846         } else if (perf_evsel__match(evsel, HARDWARE, HW_CACHE_MISSES) &&
847                         runtime_cacherefs_stats[cpu].n != 0) {
848                 total = avg_stats(&runtime_cacherefs_stats[cpu]);
849
850                 if (total)
851                         ratio = avg * 100 / total;
852
853                 fprintf(output, " # %8.3f %% of all cache refs    ", ratio);
854
855         } else if (perf_evsel__match(evsel, HARDWARE, HW_STALLED_CYCLES_FRONTEND)) {
856                 print_stalled_cycles_frontend(cpu, evsel, avg);
857         } else if (perf_evsel__match(evsel, HARDWARE, HW_STALLED_CYCLES_BACKEND)) {
858                 print_stalled_cycles_backend(cpu, evsel, avg);
859         } else if (perf_evsel__match(evsel, HARDWARE, HW_CPU_CYCLES)) {
860                 total = avg_stats(&runtime_nsecs_stats[cpu]);
861
862                 if (total)
863                         ratio = 1.0 * avg / total;
864
865                 fprintf(output, " # %8.3f GHz                    ", ratio);
866         } else if (runtime_nsecs_stats[cpu].n != 0) {
867                 total = avg_stats(&runtime_nsecs_stats[cpu]);
868
869                 if (total)
870                         ratio = 1000.0 * avg / total;
871
872                 fprintf(output, " # %8.3f M/sec                  ", ratio);
873         } else {
874                 fprintf(output, "                                   ");
875         }
876 }
877
878 /*
879  * Print out the results of a single counter:
880  * aggregated counts in system-wide mode
881  */
882 static void print_counter_aggr(struct perf_evsel *counter)
883 {
884         struct perf_stat *ps = counter->priv;
885         double avg = avg_stats(&ps->res_stats[0]);
886         int scaled = counter->counts->scaled;
887
888         if (scaled == -1) {
889                 fprintf(output, "%*s%s%*s",
890                         csv_output ? 0 : 18,
891                         counter->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED,
892                         csv_sep,
893                         csv_output ? 0 : -24,
894                         event_name(counter));
895
896                 if (counter->cgrp)
897                         fprintf(output, "%s%s", csv_sep, counter->cgrp->name);
898
899                 fputc('\n', output);
900                 return;
901         }
902
903         if (nsec_counter(counter))
904                 nsec_printout(-1, counter, avg);
905         else
906                 abs_printout(-1, counter, avg);
907
908         print_noise(counter, avg);
909
910         if (csv_output) {
911                 fputc('\n', output);
912                 return;
913         }
914
915         if (scaled) {
916                 double avg_enabled, avg_running;
917
918                 avg_enabled = avg_stats(&ps->res_stats[1]);
919                 avg_running = avg_stats(&ps->res_stats[2]);
920
921                 fprintf(output, " [%5.2f%%]", 100 * avg_running / avg_enabled);
922         }
923         fprintf(output, "\n");
924 }
925
926 /*
927  * Print out the results of a single counter:
928  * does not use aggregated count in system-wide
929  */
930 static void print_counter(struct perf_evsel *counter)
931 {
932         u64 ena, run, val;
933         int cpu;
934
935         for (cpu = 0; cpu < evsel_list->cpus->nr; cpu++) {
936                 val = counter->counts->cpu[cpu].val;
937                 ena = counter->counts->cpu[cpu].ena;
938                 run = counter->counts->cpu[cpu].run;
939                 if (run == 0 || ena == 0) {
940                         fprintf(output, "CPU%*d%s%*s%s%*s",
941                                 csv_output ? 0 : -4,
942                                 evsel_list->cpus->map[cpu], csv_sep,
943                                 csv_output ? 0 : 18,
944                                 counter->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED,
945                                 csv_sep,
946                                 csv_output ? 0 : -24,
947                                 event_name(counter));
948
949                         if (counter->cgrp)
950                                 fprintf(output, "%s%s",
951                                         csv_sep, counter->cgrp->name);
952
953                         fputc('\n', output);
954                         continue;
955                 }
956
957                 if (nsec_counter(counter))
958                         nsec_printout(cpu, counter, val);
959                 else
960                         abs_printout(cpu, counter, val);
961
962                 if (!csv_output) {
963                         print_noise(counter, 1.0);
964
965                         if (run != ena)
966                                 fprintf(output, "  (%.2f%%)",
967                                         100.0 * run / ena);
968                 }
969                 fputc('\n', output);
970         }
971 }
972
973 static void print_stat(int argc, const char **argv)
974 {
975         struct perf_evsel *counter;
976         int i;
977
978         fflush(stdout);
979
980         if (!csv_output) {
981                 fprintf(output, "\n");
982                 fprintf(output, " Performance counter stats for ");
983                 if(target_pid == -1 && target_tid == -1) {
984                         fprintf(output, "\'%s", argv[0]);
985                         for (i = 1; i < argc; i++)
986                                 fprintf(output, " %s", argv[i]);
987                 } else if (target_pid != -1)
988                         fprintf(output, "process id \'%d", target_pid);
989                 else
990                         fprintf(output, "thread id \'%d", target_tid);
991
992                 fprintf(output, "\'");
993                 if (run_count > 1)
994                         fprintf(output, " (%d runs)", run_count);
995                 fprintf(output, ":\n\n");
996         }
997
998         if (no_aggr) {
999                 list_for_each_entry(counter, &evsel_list->entries, node)
1000                         print_counter(counter);
1001         } else {
1002                 list_for_each_entry(counter, &evsel_list->entries, node)
1003                         print_counter_aggr(counter);
1004         }
1005
1006         if (!csv_output) {
1007                 if (!null_run)
1008                         fprintf(output, "\n");
1009                 fprintf(output, " %17.9f seconds time elapsed",
1010                                 avg_stats(&walltime_nsecs_stats)/1e9);
1011                 if (run_count > 1) {
1012                         fprintf(output, "                                        ");
1013                         print_noise_pct(stddev_stats(&walltime_nsecs_stats),
1014                                         avg_stats(&walltime_nsecs_stats));
1015                 }
1016                 fprintf(output, "\n\n");
1017         }
1018 }
1019
1020 static volatile int signr = -1;
1021
1022 static void skip_signal(int signo)
1023 {
1024         if(child_pid == -1)
1025                 done = 1;
1026
1027         signr = signo;
1028 }
1029
1030 static void sig_atexit(void)
1031 {
1032         if (child_pid != -1)
1033                 kill(child_pid, SIGTERM);
1034
1035         if (signr == -1)
1036                 return;
1037
1038         signal(signr, SIG_DFL);
1039         kill(getpid(), signr);
1040 }
1041
1042 static const char * const stat_usage[] = {
1043         "perf stat [<options>] [<command>]",
1044         NULL
1045 };
1046
1047 static int stat__set_big_num(const struct option *opt __used,
1048                              const char *s __used, int unset)
1049 {
1050         big_num_opt = unset ? 0 : 1;
1051         return 0;
1052 }
1053
1054 static bool append_file;
1055
1056 static const struct option options[] = {
1057         OPT_CALLBACK('e', "event", &evsel_list, "event",
1058                      "event selector. use 'perf list' to list available events",
1059                      parse_events_option),
1060         OPT_CALLBACK(0, "filter", &evsel_list, "filter",
1061                      "event filter", parse_filter),
1062         OPT_BOOLEAN('i', "no-inherit", &no_inherit,
1063                     "child tasks do not inherit counters"),
1064         OPT_INTEGER('p', "pid", &target_pid,
1065                     "stat events on existing process id"),
1066         OPT_INTEGER('t', "tid", &target_tid,
1067                     "stat events on existing thread id"),
1068         OPT_BOOLEAN('a', "all-cpus", &system_wide,
1069                     "system-wide collection from all CPUs"),
1070         OPT_BOOLEAN('g', "group", &group,
1071                     "put the counters into a counter group"),
1072         OPT_BOOLEAN('c', "scale", &scale,
1073                     "scale/normalize counters"),
1074         OPT_INCR('v', "verbose", &verbose,
1075                     "be more verbose (show counter open errors, etc)"),
1076         OPT_INTEGER('r', "repeat", &run_count,
1077                     "repeat command and print average + stddev (max: 100)"),
1078         OPT_BOOLEAN('n', "null", &null_run,
1079                     "null run - dont start any counters"),
1080         OPT_INCR('d', "detailed", &detailed_run,
1081                     "detailed run - start a lot of events"),
1082         OPT_BOOLEAN('S', "sync", &sync_run,
1083                     "call sync() before starting a run"),
1084         OPT_CALLBACK_NOOPT('B', "big-num", NULL, NULL, 
1085                            "print large numbers with thousands\' separators",
1086                            stat__set_big_num),
1087         OPT_STRING('C', "cpu", &cpu_list, "cpu",
1088                     "list of cpus to monitor in system-wide"),
1089         OPT_BOOLEAN('A', "no-aggr", &no_aggr,
1090                     "disable CPU count aggregation"),
1091         OPT_STRING('x', "field-separator", &csv_sep, "separator",
1092                    "print counts with custom separator"),
1093         OPT_CALLBACK('G', "cgroup", &evsel_list, "name",
1094                      "monitor event in cgroup name only",
1095                      parse_cgroups),
1096         OPT_STRING('o', "output", &output_name, "file",
1097                     "output file name"),
1098         OPT_BOOLEAN(0, "append", &append_file, "append to the output file"),
1099         OPT_INTEGER(0, "log-fd", &output_fd,
1100                     "log output to fd, instead of stderr"),
1101         OPT_END()
1102 };
1103
1104 /*
1105  * Add default attributes, if there were no attributes specified or
1106  * if -d/--detailed, -d -d or -d -d -d is used:
1107  */
1108 static int add_default_attributes(void)
1109 {
1110         struct perf_evsel *pos;
1111         size_t attr_nr = 0;
1112         size_t c;
1113
1114         /* Set attrs if no event is selected and !null_run: */
1115         if (null_run)
1116                 return 0;
1117
1118         if (!evsel_list->nr_entries) {
1119                 for (c = 0; c < ARRAY_SIZE(default_attrs); c++) {
1120                         pos = perf_evsel__new(default_attrs + c, c + attr_nr);
1121                         if (pos == NULL)
1122                                 return -1;
1123                         perf_evlist__add(evsel_list, pos);
1124                 }
1125                 attr_nr += c;
1126         }
1127
1128         /* Detailed events get appended to the event list: */
1129
1130         if (detailed_run <  1)
1131                 return 0;
1132
1133         /* Append detailed run extra attributes: */
1134         for (c = 0; c < ARRAY_SIZE(detailed_attrs); c++) {
1135                 pos = perf_evsel__new(detailed_attrs + c, c + attr_nr);
1136                 if (pos == NULL)
1137                         return -1;
1138                 perf_evlist__add(evsel_list, pos);
1139         }
1140         attr_nr += c;
1141
1142         if (detailed_run < 2)
1143                 return 0;
1144
1145         /* Append very detailed run extra attributes: */
1146         for (c = 0; c < ARRAY_SIZE(very_detailed_attrs); c++) {
1147                 pos = perf_evsel__new(very_detailed_attrs + c, c + attr_nr);
1148                 if (pos == NULL)
1149                         return -1;
1150                 perf_evlist__add(evsel_list, pos);
1151         }
1152
1153         if (detailed_run < 3)
1154                 return 0;
1155
1156         /* Append very, very detailed run extra attributes: */
1157         for (c = 0; c < ARRAY_SIZE(very_very_detailed_attrs); c++) {
1158                 pos = perf_evsel__new(very_very_detailed_attrs + c, c + attr_nr);
1159                 if (pos == NULL)
1160                         return -1;
1161                 perf_evlist__add(evsel_list, pos);
1162         }
1163
1164
1165         return 0;
1166 }
1167
1168 int cmd_stat(int argc, const char **argv, const char *prefix __used)
1169 {
1170         struct perf_evsel *pos;
1171         int status = -ENOMEM;
1172         const char *mode;
1173
1174         setlocale(LC_ALL, "");
1175
1176         evsel_list = perf_evlist__new(NULL, NULL);
1177         if (evsel_list == NULL)
1178                 return -ENOMEM;
1179
1180         argc = parse_options(argc, argv, options, stat_usage,
1181                 PARSE_OPT_STOP_AT_NON_OPTION);
1182
1183         output = stderr;
1184         if (output_name && strcmp(output_name, "-"))
1185                 output = NULL;
1186
1187         if (output_name && output_fd) {
1188                 fprintf(stderr, "cannot use both --output and --log-fd\n");
1189                 usage_with_options(stat_usage, options);
1190         }
1191         if (!output) {
1192                 struct timespec tm;
1193                 mode = append_file ? "a" : "w";
1194
1195                 output = fopen(output_name, mode);
1196                 if (!output) {
1197                         perror("failed to create output file");
1198                         exit(-1);
1199                 }
1200                 clock_gettime(CLOCK_REALTIME, &tm);
1201                 fprintf(output, "# started on %s\n", ctime(&tm.tv_sec));
1202         } else if (output_fd != 2) {
1203                 mode = append_file ? "a" : "w";
1204                 output = fdopen(output_fd, mode);
1205                 if (!output) {
1206                         perror("Failed opening logfd");
1207                         return -errno;
1208                 }
1209         }
1210
1211         if (csv_sep) {
1212                 csv_output = true;
1213                 if (!strcmp(csv_sep, "\\t"))
1214                         csv_sep = "\t";
1215         } else
1216                 csv_sep = DEFAULT_SEPARATOR;
1217
1218         /*
1219          * let the spreadsheet do the pretty-printing
1220          */
1221         if (csv_output) {
1222                 /* User explicitly passed -B? */
1223                 if (big_num_opt == 1) {
1224                         fprintf(stderr, "-B option not supported with -x\n");
1225                         usage_with_options(stat_usage, options);
1226                 } else /* Nope, so disable big number formatting */
1227                         big_num = false;
1228         } else if (big_num_opt == 0) /* User passed --no-big-num */
1229                 big_num = false;
1230
1231         if (!argc && target_pid == -1 && target_tid == -1)
1232                 usage_with_options(stat_usage, options);
1233         if (run_count <= 0)
1234                 usage_with_options(stat_usage, options);
1235
1236         /* no_aggr, cgroup are for system-wide only */
1237         if ((no_aggr || nr_cgroups) && !system_wide) {
1238                 fprintf(stderr, "both cgroup and no-aggregation "
1239                         "modes only available in system-wide mode\n");
1240
1241                 usage_with_options(stat_usage, options);
1242         }
1243
1244         if (add_default_attributes())
1245                 goto out;
1246
1247         if (target_pid != -1)
1248                 target_tid = target_pid;
1249
1250         evsel_list->threads = thread_map__new(target_pid, target_tid);
1251         if (evsel_list->threads == NULL) {
1252                 pr_err("Problems finding threads of monitor\n");
1253                 usage_with_options(stat_usage, options);
1254         }
1255
1256         if (system_wide)
1257                 evsel_list->cpus = cpu_map__new(cpu_list);
1258         else
1259                 evsel_list->cpus = cpu_map__dummy_new();
1260
1261         if (evsel_list->cpus == NULL) {
1262                 perror("failed to parse CPUs map");
1263                 usage_with_options(stat_usage, options);
1264                 return -1;
1265         }
1266
1267         list_for_each_entry(pos, &evsel_list->entries, node) {
1268                 if (perf_evsel__alloc_stat_priv(pos) < 0 ||
1269                     perf_evsel__alloc_counts(pos, evsel_list->cpus->nr) < 0 ||
1270                     perf_evsel__alloc_fd(pos, evsel_list->cpus->nr, evsel_list->threads->nr) < 0)
1271                         goto out_free_fd;
1272         }
1273
1274         /*
1275          * We dont want to block the signals - that would cause
1276          * child tasks to inherit that and Ctrl-C would not work.
1277          * What we want is for Ctrl-C to work in the exec()-ed
1278          * task, but being ignored by perf stat itself:
1279          */
1280         atexit(sig_atexit);
1281         signal(SIGINT,  skip_signal);
1282         signal(SIGALRM, skip_signal);
1283         signal(SIGABRT, skip_signal);
1284
1285         status = 0;
1286         for (run_idx = 0; run_idx < run_count; run_idx++) {
1287                 if (run_count != 1 && verbose)
1288                         fprintf(output, "[ perf stat: executing run #%d ... ]\n",
1289                                 run_idx + 1);
1290
1291                 if (sync_run)
1292                         sync();
1293
1294                 status = run_perf_stat(argc, argv);
1295         }
1296
1297         if (status != -1)
1298                 print_stat(argc, argv);
1299 out_free_fd:
1300         list_for_each_entry(pos, &evsel_list->entries, node)
1301                 perf_evsel__free_stat_priv(pos);
1302         perf_evlist__delete_maps(evsel_list);
1303 out:
1304         perf_evlist__delete(evsel_list);
1305         return status;
1306 }