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