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