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1// SPDX-License-Identifier: GPL-2.0
2#include <errno.h>
3#include <inttypes.h>
4#include <math.h>
5#include <string.h>
6#include "counts.h"
7#include "cpumap.h"
8#include "debug.h"
9#include "header.h"
10#include "stat.h"
11#include "session.h"
12#include "target.h"
13#include "evlist.h"
14#include "evsel.h"
15#include "thread_map.h"
16#include <linux/zalloc.h>
17
18void update_stats(struct stats *stats, u64 val)
19{
20 double delta;
21
22 stats->n++;
23 delta = val - stats->mean;
24 stats->mean += delta / stats->n;
25 stats->M2 += delta*(val - stats->mean);
26
27 if (val > stats->max)
28 stats->max = val;
29
30 if (val < stats->min)
31 stats->min = val;
32}
33
34double avg_stats(struct stats *stats)
35{
36 return stats->mean;
37}
38
39/*
40 * http://en.wikipedia.org/wiki/Algorithms_for_calculating_variance
41 *
42 * (\Sum n_i^2) - ((\Sum n_i)^2)/n
43 * s^2 = -------------------------------
44 * n - 1
45 *
46 * http://en.wikipedia.org/wiki/Stddev
47 *
48 * The std dev of the mean is related to the std dev by:
49 *
50 * s
51 * s_mean = -------
52 * sqrt(n)
53 *
54 */
55double stddev_stats(struct stats *stats)
56{
57 double variance, variance_mean;
58
59 if (stats->n < 2)
60 return 0.0;
61
62 variance = stats->M2 / (stats->n - 1);
63 variance_mean = variance / stats->n;
64
65 return sqrt(variance_mean);
66}
67
68double rel_stddev_stats(double stddev, double avg)
69{
70 double pct = 0.0;
71
72 if (avg)
73 pct = 100.0 * stddev/avg;
74
75 return pct;
76}
77
78bool __perf_evsel_stat__is(struct evsel *evsel,
79 enum perf_stat_evsel_id id)
80{
81 struct perf_stat_evsel *ps = evsel->stats;
82
83 return ps->id == id;
84}
85
86#define ID(id, name) [PERF_STAT_EVSEL_ID__##id] = #name
87static const char *id_str[PERF_STAT_EVSEL_ID__MAX] = {
88 ID(NONE, x),
89 ID(CYCLES_IN_TX, cpu/cycles-t/),
90 ID(TRANSACTION_START, cpu/tx-start/),
91 ID(ELISION_START, cpu/el-start/),
92 ID(CYCLES_IN_TX_CP, cpu/cycles-ct/),
93 ID(TOPDOWN_TOTAL_SLOTS, topdown-total-slots),
94 ID(TOPDOWN_SLOTS_ISSUED, topdown-slots-issued),
95 ID(TOPDOWN_SLOTS_RETIRED, topdown-slots-retired),
96 ID(TOPDOWN_FETCH_BUBBLES, topdown-fetch-bubbles),
97 ID(TOPDOWN_RECOVERY_BUBBLES, topdown-recovery-bubbles),
98 ID(SMI_NUM, msr/smi/),
99 ID(APERF, msr/aperf/),
100};
101#undef ID
102
103static void perf_stat_evsel_id_init(struct evsel *evsel)
104{
105 struct perf_stat_evsel *ps = evsel->stats;
106 int i;
107
108 /* ps->id is 0 hence PERF_STAT_EVSEL_ID__NONE by default */
109
110 for (i = 0; i < PERF_STAT_EVSEL_ID__MAX; i++) {
111 if (!strcmp(perf_evsel__name(evsel), id_str[i])) {
112 ps->id = i;
113 break;
114 }
115 }
116}
117
118static void perf_evsel__reset_stat_priv(struct evsel *evsel)
119{
120 int i;
121 struct perf_stat_evsel *ps = evsel->stats;
122
123 for (i = 0; i < 3; i++)
124 init_stats(&ps->res_stats[i]);
125
126 perf_stat_evsel_id_init(evsel);
127}
128
129static int perf_evsel__alloc_stat_priv(struct evsel *evsel)
130{
131 evsel->stats = zalloc(sizeof(struct perf_stat_evsel));
132 if (evsel->stats == NULL)
133 return -ENOMEM;
134 perf_evsel__reset_stat_priv(evsel);
135 return 0;
136}
137
138static void perf_evsel__free_stat_priv(struct evsel *evsel)
139{
140 struct perf_stat_evsel *ps = evsel->stats;
141
142 if (ps)
143 zfree(&ps->group_data);
144 zfree(&evsel->stats);
145}
146
147static int perf_evsel__alloc_prev_raw_counts(struct evsel *evsel,
148 int ncpus, int nthreads)
149{
150 struct perf_counts *counts;
151
152 counts = perf_counts__new(ncpus, nthreads);
153 if (counts)
154 evsel->prev_raw_counts = counts;
155
156 return counts ? 0 : -ENOMEM;
157}
158
159static void perf_evsel__free_prev_raw_counts(struct evsel *evsel)
160{
161 perf_counts__delete(evsel->prev_raw_counts);
162 evsel->prev_raw_counts = NULL;
163}
164
165static void perf_evsel__reset_prev_raw_counts(struct evsel *evsel)
166{
167 if (evsel->prev_raw_counts) {
168 evsel->prev_raw_counts->aggr.val = 0;
169 evsel->prev_raw_counts->aggr.ena = 0;
170 evsel->prev_raw_counts->aggr.run = 0;
171 }
172}
173
174static int perf_evsel__alloc_stats(struct evsel *evsel, bool alloc_raw)
175{
176 int ncpus = perf_evsel__nr_cpus(evsel);
177 int nthreads = perf_thread_map__nr(evsel->core.threads);
178
179 if (perf_evsel__alloc_stat_priv(evsel) < 0 ||
180 perf_evsel__alloc_counts(evsel, ncpus, nthreads) < 0 ||
181 (alloc_raw && perf_evsel__alloc_prev_raw_counts(evsel, ncpus, nthreads) < 0))
182 return -ENOMEM;
183
184 return 0;
185}
186
187int perf_evlist__alloc_stats(struct evlist *evlist, bool alloc_raw)
188{
189 struct evsel *evsel;
190
191 evlist__for_each_entry(evlist, evsel) {
192 if (perf_evsel__alloc_stats(evsel, alloc_raw))
193 goto out_free;
194 }
195
196 return 0;
197
198out_free:
199 perf_evlist__free_stats(evlist);
200 return -1;
201}
202
203void perf_evlist__free_stats(struct evlist *evlist)
204{
205 struct evsel *evsel;
206
207 evlist__for_each_entry(evlist, evsel) {
208 perf_evsel__free_stat_priv(evsel);
209 perf_evsel__free_counts(evsel);
210 perf_evsel__free_prev_raw_counts(evsel);
211 }
212}
213
214void perf_evlist__reset_stats(struct evlist *evlist)
215{
216 struct evsel *evsel;
217
218 evlist__for_each_entry(evlist, evsel) {
219 perf_evsel__reset_stat_priv(evsel);
220 perf_evsel__reset_counts(evsel);
221 }
222}
223
224void perf_evlist__reset_prev_raw_counts(struct evlist *evlist)
225{
226 struct evsel *evsel;
227
228 evlist__for_each_entry(evlist, evsel)
229 perf_evsel__reset_prev_raw_counts(evsel);
230}
231
232static void zero_per_pkg(struct evsel *counter)
233{
234 if (counter->per_pkg_mask)
235 memset(counter->per_pkg_mask, 0, cpu__max_cpu());
236}
237
238static int check_per_pkg(struct evsel *counter,
239 struct perf_counts_values *vals, int cpu, bool *skip)
240{
241 unsigned long *mask = counter->per_pkg_mask;
242 struct perf_cpu_map *cpus = evsel__cpus(counter);
243 int s;
244
245 *skip = false;
246
247 if (!counter->per_pkg)
248 return 0;
249
250 if (perf_cpu_map__empty(cpus))
251 return 0;
252
253 if (!mask) {
254 mask = zalloc(cpu__max_cpu());
255 if (!mask)
256 return -ENOMEM;
257
258 counter->per_pkg_mask = mask;
259 }
260
261 /*
262 * we do not consider an event that has not run as a good
263 * instance to mark a package as used (skip=1). Otherwise
264 * we may run into a situation where the first CPU in a package
265 * is not running anything, yet the second is, and this function
266 * would mark the package as used after the first CPU and would
267 * not read the values from the second CPU.
268 */
269 if (!(vals->run && vals->ena))
270 return 0;
271
272 s = cpu_map__get_socket(cpus, cpu, NULL);
273 if (s < 0)
274 return -1;
275
276 *skip = test_and_set_bit(s, mask) == 1;
277 return 0;
278}
279
280static int
281process_counter_values(struct perf_stat_config *config, struct evsel *evsel,
282 int cpu, int thread,
283 struct perf_counts_values *count)
284{
285 struct perf_counts_values *aggr = &evsel->counts->aggr;
286 static struct perf_counts_values zero;
287 bool skip = false;
288
289 if (check_per_pkg(evsel, count, cpu, &skip)) {
290 pr_err("failed to read per-pkg counter\n");
291 return -1;
292 }
293
294 if (skip)
295 count = &zero;
296
297 switch (config->aggr_mode) {
298 case AGGR_THREAD:
299 case AGGR_CORE:
300 case AGGR_DIE:
301 case AGGR_SOCKET:
302 case AGGR_NONE:
303 if (!evsel->snapshot)
304 perf_evsel__compute_deltas(evsel, cpu, thread, count);
305 perf_counts_values__scale(count, config->scale, NULL);
306 if ((config->aggr_mode == AGGR_NONE) && (!evsel->percore)) {
307 perf_stat__update_shadow_stats(evsel, count->val,
308 cpu, &rt_stat);
309 }
310
311 if (config->aggr_mode == AGGR_THREAD) {
312 if (config->stats)
313 perf_stat__update_shadow_stats(evsel,
314 count->val, 0, &config->stats[thread]);
315 else
316 perf_stat__update_shadow_stats(evsel,
317 count->val, 0, &rt_stat);
318 }
319 break;
320 case AGGR_GLOBAL:
321 aggr->val += count->val;
322 aggr->ena += count->ena;
323 aggr->run += count->run;
324 case AGGR_UNSET:
325 default:
326 break;
327 }
328
329 return 0;
330}
331
332static int process_counter_maps(struct perf_stat_config *config,
333 struct evsel *counter)
334{
335 int nthreads = perf_thread_map__nr(counter->core.threads);
336 int ncpus = perf_evsel__nr_cpus(counter);
337 int cpu, thread;
338
339 if (counter->core.system_wide)
340 nthreads = 1;
341
342 for (thread = 0; thread < nthreads; thread++) {
343 for (cpu = 0; cpu < ncpus; cpu++) {
344 if (process_counter_values(config, counter, cpu, thread,
345 perf_counts(counter->counts, cpu, thread)))
346 return -1;
347 }
348 }
349
350 return 0;
351}
352
353int perf_stat_process_counter(struct perf_stat_config *config,
354 struct evsel *counter)
355{
356 struct perf_counts_values *aggr = &counter->counts->aggr;
357 struct perf_stat_evsel *ps = counter->stats;
358 u64 *count = counter->counts->aggr.values;
359 int i, ret;
360
361 aggr->val = aggr->ena = aggr->run = 0;
362
363 /*
364 * We calculate counter's data every interval,
365 * and the display code shows ps->res_stats
366 * avg value. We need to zero the stats for
367 * interval mode, otherwise overall avg running
368 * averages will be shown for each interval.
369 */
370 if (config->interval)
371 init_stats(ps->res_stats);
372
373 if (counter->per_pkg)
374 zero_per_pkg(counter);
375
376 ret = process_counter_maps(config, counter);
377 if (ret)
378 return ret;
379
380 if (config->aggr_mode != AGGR_GLOBAL)
381 return 0;
382
383 if (!counter->snapshot)
384 perf_evsel__compute_deltas(counter, -1, -1, aggr);
385 perf_counts_values__scale(aggr, config->scale, &counter->counts->scaled);
386
387 for (i = 0; i < 3; i++)
388 update_stats(&ps->res_stats[i], count[i]);
389
390 if (verbose > 0) {
391 fprintf(config->output, "%s: %" PRIu64 " %" PRIu64 " %" PRIu64 "\n",
392 perf_evsel__name(counter), count[0], count[1], count[2]);
393 }
394
395 /*
396 * Save the full runtime - to allow normalization during printout:
397 */
398 perf_stat__update_shadow_stats(counter, *count, 0, &rt_stat);
399
400 return 0;
401}
402
403int perf_event__process_stat_event(struct perf_session *session,
404 union perf_event *event)
405{
406 struct perf_counts_values count;
407 struct perf_record_stat *st = &event->stat;
408 struct evsel *counter;
409
410 count.val = st->val;
411 count.ena = st->ena;
412 count.run = st->run;
413
414 counter = perf_evlist__id2evsel(session->evlist, st->id);
415 if (!counter) {
416 pr_err("Failed to resolve counter for stat event.\n");
417 return -EINVAL;
418 }
419
420 *perf_counts(counter->counts, st->cpu, st->thread) = count;
421 counter->supported = true;
422 return 0;
423}
424
425size_t perf_event__fprintf_stat(union perf_event *event, FILE *fp)
426{
427 struct perf_record_stat *st = (struct perf_record_stat *)event;
428 size_t ret;
429
430 ret = fprintf(fp, "\n... id %" PRI_lu64 ", cpu %d, thread %d\n",
431 st->id, st->cpu, st->thread);
432 ret += fprintf(fp, "... value %" PRI_lu64 ", enabled %" PRI_lu64 ", running %" PRI_lu64 "\n",
433 st->val, st->ena, st->run);
434
435 return ret;
436}
437
438size_t perf_event__fprintf_stat_round(union perf_event *event, FILE *fp)
439{
440 struct perf_record_stat_round *rd = (struct perf_record_stat_round *)event;
441 size_t ret;
442
443 ret = fprintf(fp, "\n... time %" PRI_lu64 ", type %s\n", rd->time,
444 rd->type == PERF_STAT_ROUND_TYPE__FINAL ? "FINAL" : "INTERVAL");
445
446 return ret;
447}
448
449size_t perf_event__fprintf_stat_config(union perf_event *event, FILE *fp)
450{
451 struct perf_stat_config sc;
452 size_t ret;
453
454 perf_event__read_stat_config(&sc, &event->stat_config);
455
456 ret = fprintf(fp, "\n");
457 ret += fprintf(fp, "... aggr_mode %d\n", sc.aggr_mode);
458 ret += fprintf(fp, "... scale %d\n", sc.scale);
459 ret += fprintf(fp, "... interval %u\n", sc.interval);
460
461 return ret;
462}
463
464int create_perf_stat_counter(struct evsel *evsel,
465 struct perf_stat_config *config,
466 struct target *target)
467{
468 struct perf_event_attr *attr = &evsel->core.attr;
469 struct evsel *leader = evsel->leader;
470
471 attr->read_format = PERF_FORMAT_TOTAL_TIME_ENABLED |
472 PERF_FORMAT_TOTAL_TIME_RUNNING;
473
474 /*
475 * The event is part of non trivial group, let's enable
476 * the group read (for leader) and ID retrieval for all
477 * members.
478 */
479 if (leader->core.nr_members > 1)
480 attr->read_format |= PERF_FORMAT_ID|PERF_FORMAT_GROUP;
481
482 attr->inherit = !config->no_inherit;
483
484 /*
485 * Some events get initialized with sample_(period/type) set,
486 * like tracepoints. Clear it up for counting.
487 */
488 attr->sample_period = 0;
489
490 if (config->identifier)
491 attr->sample_type = PERF_SAMPLE_IDENTIFIER;
492
493 /*
494 * Disabling all counters initially, they will be enabled
495 * either manually by us or by kernel via enable_on_exec
496 * set later.
497 */
498 if (perf_evsel__is_group_leader(evsel)) {
499 attr->disabled = 1;
500
501 /*
502 * In case of initial_delay we enable tracee
503 * events manually.
504 */
505 if (target__none(target) && !config->initial_delay)
506 attr->enable_on_exec = 1;
507 }
508
509 if (target__has_cpu(target) && !target__has_per_thread(target))
510 return perf_evsel__open_per_cpu(evsel, evsel__cpus(evsel));
511
512 return perf_evsel__open_per_thread(evsel, evsel->core.threads);
513}
1#include <math.h>
2#include "stat.h"
3#include "evlist.h"
4#include "evsel.h"
5#include "thread_map.h"
6
7void update_stats(struct stats *stats, u64 val)
8{
9 double delta;
10
11 stats->n++;
12 delta = val - stats->mean;
13 stats->mean += delta / stats->n;
14 stats->M2 += delta*(val - stats->mean);
15
16 if (val > stats->max)
17 stats->max = val;
18
19 if (val < stats->min)
20 stats->min = val;
21}
22
23double avg_stats(struct stats *stats)
24{
25 return stats->mean;
26}
27
28/*
29 * http://en.wikipedia.org/wiki/Algorithms_for_calculating_variance
30 *
31 * (\Sum n_i^2) - ((\Sum n_i)^2)/n
32 * s^2 = -------------------------------
33 * n - 1
34 *
35 * http://en.wikipedia.org/wiki/Stddev
36 *
37 * The std dev of the mean is related to the std dev by:
38 *
39 * s
40 * s_mean = -------
41 * sqrt(n)
42 *
43 */
44double stddev_stats(struct stats *stats)
45{
46 double variance, variance_mean;
47
48 if (stats->n < 2)
49 return 0.0;
50
51 variance = stats->M2 / (stats->n - 1);
52 variance_mean = variance / stats->n;
53
54 return sqrt(variance_mean);
55}
56
57double rel_stddev_stats(double stddev, double avg)
58{
59 double pct = 0.0;
60
61 if (avg)
62 pct = 100.0 * stddev/avg;
63
64 return pct;
65}
66
67bool __perf_evsel_stat__is(struct perf_evsel *evsel,
68 enum perf_stat_evsel_id id)
69{
70 struct perf_stat_evsel *ps = evsel->priv;
71
72 return ps->id == id;
73}
74
75#define ID(id, name) [PERF_STAT_EVSEL_ID__##id] = #name
76static const char *id_str[PERF_STAT_EVSEL_ID__MAX] = {
77 ID(NONE, x),
78 ID(CYCLES_IN_TX, cpu/cycles-t/),
79 ID(TRANSACTION_START, cpu/tx-start/),
80 ID(ELISION_START, cpu/el-start/),
81 ID(CYCLES_IN_TX_CP, cpu/cycles-ct/),
82 ID(TOPDOWN_TOTAL_SLOTS, topdown-total-slots),
83 ID(TOPDOWN_SLOTS_ISSUED, topdown-slots-issued),
84 ID(TOPDOWN_SLOTS_RETIRED, topdown-slots-retired),
85 ID(TOPDOWN_FETCH_BUBBLES, topdown-fetch-bubbles),
86 ID(TOPDOWN_RECOVERY_BUBBLES, topdown-recovery-bubbles),
87};
88#undef ID
89
90void perf_stat_evsel_id_init(struct perf_evsel *evsel)
91{
92 struct perf_stat_evsel *ps = evsel->priv;
93 int i;
94
95 /* ps->id is 0 hence PERF_STAT_EVSEL_ID__NONE by default */
96
97 for (i = 0; i < PERF_STAT_EVSEL_ID__MAX; i++) {
98 if (!strcmp(perf_evsel__name(evsel), id_str[i])) {
99 ps->id = i;
100 break;
101 }
102 }
103}
104
105static void perf_evsel__reset_stat_priv(struct perf_evsel *evsel)
106{
107 int i;
108 struct perf_stat_evsel *ps = evsel->priv;
109
110 for (i = 0; i < 3; i++)
111 init_stats(&ps->res_stats[i]);
112
113 perf_stat_evsel_id_init(evsel);
114}
115
116static int perf_evsel__alloc_stat_priv(struct perf_evsel *evsel)
117{
118 evsel->priv = zalloc(sizeof(struct perf_stat_evsel));
119 if (evsel->priv == NULL)
120 return -ENOMEM;
121 perf_evsel__reset_stat_priv(evsel);
122 return 0;
123}
124
125static void perf_evsel__free_stat_priv(struct perf_evsel *evsel)
126{
127 zfree(&evsel->priv);
128}
129
130static int perf_evsel__alloc_prev_raw_counts(struct perf_evsel *evsel,
131 int ncpus, int nthreads)
132{
133 struct perf_counts *counts;
134
135 counts = perf_counts__new(ncpus, nthreads);
136 if (counts)
137 evsel->prev_raw_counts = counts;
138
139 return counts ? 0 : -ENOMEM;
140}
141
142static void perf_evsel__free_prev_raw_counts(struct perf_evsel *evsel)
143{
144 perf_counts__delete(evsel->prev_raw_counts);
145 evsel->prev_raw_counts = NULL;
146}
147
148static int perf_evsel__alloc_stats(struct perf_evsel *evsel, bool alloc_raw)
149{
150 int ncpus = perf_evsel__nr_cpus(evsel);
151 int nthreads = thread_map__nr(evsel->threads);
152
153 if (perf_evsel__alloc_stat_priv(evsel) < 0 ||
154 perf_evsel__alloc_counts(evsel, ncpus, nthreads) < 0 ||
155 (alloc_raw && perf_evsel__alloc_prev_raw_counts(evsel, ncpus, nthreads) < 0))
156 return -ENOMEM;
157
158 return 0;
159}
160
161int perf_evlist__alloc_stats(struct perf_evlist *evlist, bool alloc_raw)
162{
163 struct perf_evsel *evsel;
164
165 evlist__for_each_entry(evlist, evsel) {
166 if (perf_evsel__alloc_stats(evsel, alloc_raw))
167 goto out_free;
168 }
169
170 return 0;
171
172out_free:
173 perf_evlist__free_stats(evlist);
174 return -1;
175}
176
177void perf_evlist__free_stats(struct perf_evlist *evlist)
178{
179 struct perf_evsel *evsel;
180
181 evlist__for_each_entry(evlist, evsel) {
182 perf_evsel__free_stat_priv(evsel);
183 perf_evsel__free_counts(evsel);
184 perf_evsel__free_prev_raw_counts(evsel);
185 }
186}
187
188void perf_evlist__reset_stats(struct perf_evlist *evlist)
189{
190 struct perf_evsel *evsel;
191
192 evlist__for_each_entry(evlist, evsel) {
193 perf_evsel__reset_stat_priv(evsel);
194 perf_evsel__reset_counts(evsel);
195 }
196}
197
198static void zero_per_pkg(struct perf_evsel *counter)
199{
200 if (counter->per_pkg_mask)
201 memset(counter->per_pkg_mask, 0, MAX_NR_CPUS);
202}
203
204static int check_per_pkg(struct perf_evsel *counter,
205 struct perf_counts_values *vals, int cpu, bool *skip)
206{
207 unsigned long *mask = counter->per_pkg_mask;
208 struct cpu_map *cpus = perf_evsel__cpus(counter);
209 int s;
210
211 *skip = false;
212
213 if (!counter->per_pkg)
214 return 0;
215
216 if (cpu_map__empty(cpus))
217 return 0;
218
219 if (!mask) {
220 mask = zalloc(MAX_NR_CPUS);
221 if (!mask)
222 return -ENOMEM;
223
224 counter->per_pkg_mask = mask;
225 }
226
227 /*
228 * we do not consider an event that has not run as a good
229 * instance to mark a package as used (skip=1). Otherwise
230 * we may run into a situation where the first CPU in a package
231 * is not running anything, yet the second is, and this function
232 * would mark the package as used after the first CPU and would
233 * not read the values from the second CPU.
234 */
235 if (!(vals->run && vals->ena))
236 return 0;
237
238 s = cpu_map__get_socket(cpus, cpu, NULL);
239 if (s < 0)
240 return -1;
241
242 *skip = test_and_set_bit(s, mask) == 1;
243 return 0;
244}
245
246static int
247process_counter_values(struct perf_stat_config *config, struct perf_evsel *evsel,
248 int cpu, int thread,
249 struct perf_counts_values *count)
250{
251 struct perf_counts_values *aggr = &evsel->counts->aggr;
252 static struct perf_counts_values zero;
253 bool skip = false;
254
255 if (check_per_pkg(evsel, count, cpu, &skip)) {
256 pr_err("failed to read per-pkg counter\n");
257 return -1;
258 }
259
260 if (skip)
261 count = &zero;
262
263 switch (config->aggr_mode) {
264 case AGGR_THREAD:
265 case AGGR_CORE:
266 case AGGR_SOCKET:
267 case AGGR_NONE:
268 if (!evsel->snapshot)
269 perf_evsel__compute_deltas(evsel, cpu, thread, count);
270 perf_counts_values__scale(count, config->scale, NULL);
271 if (config->aggr_mode == AGGR_NONE)
272 perf_stat__update_shadow_stats(evsel, count->values, cpu);
273 break;
274 case AGGR_GLOBAL:
275 aggr->val += count->val;
276 if (config->scale) {
277 aggr->ena += count->ena;
278 aggr->run += count->run;
279 }
280 case AGGR_UNSET:
281 default:
282 break;
283 }
284
285 return 0;
286}
287
288static int process_counter_maps(struct perf_stat_config *config,
289 struct perf_evsel *counter)
290{
291 int nthreads = thread_map__nr(counter->threads);
292 int ncpus = perf_evsel__nr_cpus(counter);
293 int cpu, thread;
294
295 if (counter->system_wide)
296 nthreads = 1;
297
298 for (thread = 0; thread < nthreads; thread++) {
299 for (cpu = 0; cpu < ncpus; cpu++) {
300 if (process_counter_values(config, counter, cpu, thread,
301 perf_counts(counter->counts, cpu, thread)))
302 return -1;
303 }
304 }
305
306 return 0;
307}
308
309int perf_stat_process_counter(struct perf_stat_config *config,
310 struct perf_evsel *counter)
311{
312 struct perf_counts_values *aggr = &counter->counts->aggr;
313 struct perf_stat_evsel *ps = counter->priv;
314 u64 *count = counter->counts->aggr.values;
315 u64 val;
316 int i, ret;
317
318 aggr->val = aggr->ena = aggr->run = 0;
319
320 /*
321 * We calculate counter's data every interval,
322 * and the display code shows ps->res_stats
323 * avg value. We need to zero the stats for
324 * interval mode, otherwise overall avg running
325 * averages will be shown for each interval.
326 */
327 if (config->interval)
328 init_stats(ps->res_stats);
329
330 if (counter->per_pkg)
331 zero_per_pkg(counter);
332
333 ret = process_counter_maps(config, counter);
334 if (ret)
335 return ret;
336
337 if (config->aggr_mode != AGGR_GLOBAL)
338 return 0;
339
340 if (!counter->snapshot)
341 perf_evsel__compute_deltas(counter, -1, -1, aggr);
342 perf_counts_values__scale(aggr, config->scale, &counter->counts->scaled);
343
344 for (i = 0; i < 3; i++)
345 update_stats(&ps->res_stats[i], count[i]);
346
347 if (verbose) {
348 fprintf(config->output, "%s: %" PRIu64 " %" PRIu64 " %" PRIu64 "\n",
349 perf_evsel__name(counter), count[0], count[1], count[2]);
350 }
351
352 /*
353 * Save the full runtime - to allow normalization during printout:
354 */
355 val = counter->scale * *count;
356 perf_stat__update_shadow_stats(counter, &val, 0);
357
358 return 0;
359}
360
361int perf_event__process_stat_event(struct perf_tool *tool __maybe_unused,
362 union perf_event *event,
363 struct perf_session *session)
364{
365 struct perf_counts_values count;
366 struct stat_event *st = &event->stat;
367 struct perf_evsel *counter;
368
369 count.val = st->val;
370 count.ena = st->ena;
371 count.run = st->run;
372
373 counter = perf_evlist__id2evsel(session->evlist, st->id);
374 if (!counter) {
375 pr_err("Failed to resolve counter for stat event.\n");
376 return -EINVAL;
377 }
378
379 *perf_counts(counter->counts, st->cpu, st->thread) = count;
380 counter->supported = true;
381 return 0;
382}
383
384size_t perf_event__fprintf_stat(union perf_event *event, FILE *fp)
385{
386 struct stat_event *st = (struct stat_event *) event;
387 size_t ret;
388
389 ret = fprintf(fp, "\n... id %" PRIu64 ", cpu %d, thread %d\n",
390 st->id, st->cpu, st->thread);
391 ret += fprintf(fp, "... value %" PRIu64 ", enabled %" PRIu64 ", running %" PRIu64 "\n",
392 st->val, st->ena, st->run);
393
394 return ret;
395}
396
397size_t perf_event__fprintf_stat_round(union perf_event *event, FILE *fp)
398{
399 struct stat_round_event *rd = (struct stat_round_event *)event;
400 size_t ret;
401
402 ret = fprintf(fp, "\n... time %" PRIu64 ", type %s\n", rd->time,
403 rd->type == PERF_STAT_ROUND_TYPE__FINAL ? "FINAL" : "INTERVAL");
404
405 return ret;
406}
407
408size_t perf_event__fprintf_stat_config(union perf_event *event, FILE *fp)
409{
410 struct perf_stat_config sc;
411 size_t ret;
412
413 perf_event__read_stat_config(&sc, &event->stat_config);
414
415 ret = fprintf(fp, "\n");
416 ret += fprintf(fp, "... aggr_mode %d\n", sc.aggr_mode);
417 ret += fprintf(fp, "... scale %d\n", sc.scale);
418 ret += fprintf(fp, "... interval %u\n", sc.interval);
419
420 return ret;
421}