1b2441318SGreg Kroah-Hartman // SPDX-License-Identifier: GPL-2.0 2a43783aeSArnaldo Carvalho de Melo #include <errno.h> 3fd20e811SArnaldo Carvalho de Melo #include <inttypes.h> 40007eceaSXiao Guangrong #include <math.h> 5f2a39fe8SArnaldo Carvalho de Melo #include <string.h> 6bfc49182SArnaldo Carvalho de Melo #include "counts.h" 787ffb6c6SArnaldo Carvalho de Melo #include "cpumap.h" 8b4209025SArnaldo Carvalho de Melo #include "debug.h" 9f2a39fe8SArnaldo Carvalho de Melo #include "header.h" 100007eceaSXiao Guangrong #include "stat.h" 11f2a39fe8SArnaldo Carvalho de Melo #include "session.h" 12aeb00b1aSArnaldo Carvalho de Melo #include "target.h" 1324e34f68SJiri Olsa #include "evlist.h" 14e2f56da1SJiri Olsa #include "evsel.h" 1524e34f68SJiri Olsa #include "thread_map.h" 167f7c536fSArnaldo Carvalho de Melo #include <linux/zalloc.h> 170007eceaSXiao Guangrong 180007eceaSXiao Guangrong void update_stats(struct stats *stats, u64 val) 190007eceaSXiao Guangrong { 200007eceaSXiao Guangrong double delta; 210007eceaSXiao Guangrong 220007eceaSXiao Guangrong stats->n++; 230007eceaSXiao Guangrong delta = val - stats->mean; 240007eceaSXiao Guangrong stats->mean += delta / stats->n; 250007eceaSXiao Guangrong stats->M2 += delta*(val - stats->mean); 26ffe4f3c0SDavid Ahern 27ffe4f3c0SDavid Ahern if (val > stats->max) 28ffe4f3c0SDavid Ahern stats->max = val; 29ffe4f3c0SDavid Ahern 30ffe4f3c0SDavid Ahern if (val < stats->min) 31ffe4f3c0SDavid Ahern stats->min = val; 320007eceaSXiao Guangrong } 330007eceaSXiao Guangrong 340007eceaSXiao Guangrong double avg_stats(struct stats *stats) 350007eceaSXiao Guangrong { 360007eceaSXiao Guangrong return stats->mean; 370007eceaSXiao Guangrong } 380007eceaSXiao Guangrong 390007eceaSXiao Guangrong /* 400007eceaSXiao Guangrong * http://en.wikipedia.org/wiki/Algorithms_for_calculating_variance 410007eceaSXiao Guangrong * 420007eceaSXiao Guangrong * (\Sum n_i^2) - ((\Sum n_i)^2)/n 430007eceaSXiao Guangrong * s^2 = ------------------------------- 440007eceaSXiao Guangrong * n - 1 450007eceaSXiao Guangrong * 460007eceaSXiao Guangrong * http://en.wikipedia.org/wiki/Stddev 470007eceaSXiao Guangrong * 480007eceaSXiao Guangrong * The std dev of the mean is related to the std dev by: 490007eceaSXiao Guangrong * 500007eceaSXiao Guangrong * s 510007eceaSXiao Guangrong * s_mean = ------- 520007eceaSXiao Guangrong * sqrt(n) 530007eceaSXiao Guangrong * 540007eceaSXiao Guangrong */ 550007eceaSXiao Guangrong double stddev_stats(struct stats *stats) 560007eceaSXiao Guangrong { 570007eceaSXiao Guangrong double variance, variance_mean; 580007eceaSXiao Guangrong 5945528f7cSDavid Ahern if (stats->n < 2) 600007eceaSXiao Guangrong return 0.0; 610007eceaSXiao Guangrong 620007eceaSXiao Guangrong variance = stats->M2 / (stats->n - 1); 630007eceaSXiao Guangrong variance_mean = variance / stats->n; 640007eceaSXiao Guangrong 650007eceaSXiao Guangrong return sqrt(variance_mean); 660007eceaSXiao Guangrong } 670007eceaSXiao Guangrong 680007eceaSXiao Guangrong double rel_stddev_stats(double stddev, double avg) 690007eceaSXiao Guangrong { 700007eceaSXiao Guangrong double pct = 0.0; 710007eceaSXiao Guangrong 720007eceaSXiao Guangrong if (avg) 730007eceaSXiao Guangrong pct = 100.0 * stddev/avg; 740007eceaSXiao Guangrong 750007eceaSXiao Guangrong return pct; 760007eceaSXiao Guangrong } 77e2f56da1SJiri Olsa 7832dcd021SJiri Olsa bool __perf_evsel_stat__is(struct evsel *evsel, 79e2f56da1SJiri Olsa enum perf_stat_evsel_id id) 80e2f56da1SJiri Olsa { 81e669e833SArnaldo Carvalho de Melo struct perf_stat_evsel *ps = evsel->stats; 82e2f56da1SJiri Olsa 83e2f56da1SJiri Olsa return ps->id == id; 84e2f56da1SJiri Olsa } 85e2f56da1SJiri Olsa 86e2f56da1SJiri Olsa #define ID(id, name) [PERF_STAT_EVSEL_ID__##id] = #name 87e2f56da1SJiri Olsa static const char *id_str[PERF_STAT_EVSEL_ID__MAX] = { 88e2f56da1SJiri Olsa ID(NONE, x), 894c358d5cSJiri Olsa ID(CYCLES_IN_TX, cpu/cycles-t/), 904c358d5cSJiri Olsa ID(TRANSACTION_START, cpu/tx-start/), 914c358d5cSJiri Olsa ID(ELISION_START, cpu/el-start/), 924c358d5cSJiri Olsa ID(CYCLES_IN_TX_CP, cpu/cycles-ct/), 93239bd47fSAndi Kleen ID(TOPDOWN_TOTAL_SLOTS, topdown-total-slots), 94239bd47fSAndi Kleen ID(TOPDOWN_SLOTS_ISSUED, topdown-slots-issued), 95239bd47fSAndi Kleen ID(TOPDOWN_SLOTS_RETIRED, topdown-slots-retired), 96239bd47fSAndi Kleen ID(TOPDOWN_FETCH_BUBBLES, topdown-fetch-bubbles), 97239bd47fSAndi Kleen ID(TOPDOWN_RECOVERY_BUBBLES, topdown-recovery-bubbles), 98daefd0bcSKan Liang ID(SMI_NUM, msr/smi/), 99daefd0bcSKan Liang ID(APERF, msr/aperf/), 100e2f56da1SJiri Olsa }; 101e2f56da1SJiri Olsa #undef ID 102e2f56da1SJiri Olsa 10332dcd021SJiri Olsa static void perf_stat_evsel_id_init(struct evsel *evsel) 104e2f56da1SJiri Olsa { 105e669e833SArnaldo Carvalho de Melo struct perf_stat_evsel *ps = evsel->stats; 106e2f56da1SJiri Olsa int i; 107e2f56da1SJiri Olsa 108e2f56da1SJiri Olsa /* ps->id is 0 hence PERF_STAT_EVSEL_ID__NONE by default */ 109e2f56da1SJiri Olsa 110e2f56da1SJiri Olsa for (i = 0; i < PERF_STAT_EVSEL_ID__MAX; i++) { 1118ab2e96dSArnaldo Carvalho de Melo if (!strcmp(evsel__name(evsel), id_str[i])) { 112e2f56da1SJiri Olsa ps->id = i; 113e2f56da1SJiri Olsa break; 114e2f56da1SJiri Olsa } 115e2f56da1SJiri Olsa } 116e2f56da1SJiri Olsa } 117a9a3a4d9SJiri Olsa 1187d1e239eSArnaldo Carvalho de Melo static void evsel__reset_stat_priv(struct evsel *evsel) 1199689edfaSJiri Olsa { 1209689edfaSJiri Olsa int i; 121e669e833SArnaldo Carvalho de Melo struct perf_stat_evsel *ps = evsel->stats; 1229689edfaSJiri Olsa 1239689edfaSJiri Olsa for (i = 0; i < 3; i++) 1249689edfaSJiri Olsa init_stats(&ps->res_stats[i]); 1259689edfaSJiri Olsa 1269689edfaSJiri Olsa perf_stat_evsel_id_init(evsel); 1279689edfaSJiri Olsa } 1289689edfaSJiri Olsa 1297d1e239eSArnaldo Carvalho de Melo static int evsel__alloc_stat_priv(struct evsel *evsel) 1309689edfaSJiri Olsa { 131e669e833SArnaldo Carvalho de Melo evsel->stats = zalloc(sizeof(struct perf_stat_evsel)); 132e669e833SArnaldo Carvalho de Melo if (evsel->stats == NULL) 1339689edfaSJiri Olsa return -ENOMEM; 1347d1e239eSArnaldo Carvalho de Melo evsel__reset_stat_priv(evsel); 1359689edfaSJiri Olsa return 0; 1369689edfaSJiri Olsa } 1379689edfaSJiri Olsa 1387d1e239eSArnaldo Carvalho de Melo static void evsel__free_stat_priv(struct evsel *evsel) 1399689edfaSJiri Olsa { 140e669e833SArnaldo Carvalho de Melo struct perf_stat_evsel *ps = evsel->stats; 141f7794d52SJiri Olsa 142f7794d52SJiri Olsa if (ps) 143d8f9da24SArnaldo Carvalho de Melo zfree(&ps->group_data); 144e669e833SArnaldo Carvalho de Melo zfree(&evsel->stats); 1459689edfaSJiri Olsa } 146a939512dSJiri Olsa 1477d1e239eSArnaldo Carvalho de Melo static int evsel__alloc_prev_raw_counts(struct evsel *evsel, int ncpus, int nthreads) 148a939512dSJiri Olsa { 149a939512dSJiri Olsa struct perf_counts *counts; 150a939512dSJiri Olsa 151a939512dSJiri Olsa counts = perf_counts__new(ncpus, nthreads); 152a939512dSJiri Olsa if (counts) 153a939512dSJiri Olsa evsel->prev_raw_counts = counts; 154a939512dSJiri Olsa 155a939512dSJiri Olsa return counts ? 0 : -ENOMEM; 156a939512dSJiri Olsa } 157a939512dSJiri Olsa 1587d1e239eSArnaldo Carvalho de Melo static void evsel__free_prev_raw_counts(struct evsel *evsel) 159a939512dSJiri Olsa { 160a939512dSJiri Olsa perf_counts__delete(evsel->prev_raw_counts); 161a939512dSJiri Olsa evsel->prev_raw_counts = NULL; 162a939512dSJiri Olsa } 16324e34f68SJiri Olsa 1647d1e239eSArnaldo Carvalho de Melo static void evsel__reset_prev_raw_counts(struct evsel *evsel) 165b63fd11cSSrikar Dronamraju { 166cf4d9bd6SJin Yao if (evsel->prev_raw_counts) 167cf4d9bd6SJin Yao perf_counts__reset(evsel->prev_raw_counts); 168b63fd11cSSrikar Dronamraju } 169b63fd11cSSrikar Dronamraju 1707d1e239eSArnaldo Carvalho de Melo static int evsel__alloc_stats(struct evsel *evsel, bool alloc_raw) 17124e34f68SJiri Olsa { 1725eb88f04SArnaldo Carvalho de Melo int ncpus = evsel__nr_cpus(evsel); 173a2f354e3SJiri Olsa int nthreads = perf_thread_map__nr(evsel->core.threads); 17424e34f68SJiri Olsa 1757d1e239eSArnaldo Carvalho de Melo if (evsel__alloc_stat_priv(evsel) < 0 || 1767d1e239eSArnaldo Carvalho de Melo evsel__alloc_counts(evsel, ncpus, nthreads) < 0 || 1777d1e239eSArnaldo Carvalho de Melo (alloc_raw && evsel__alloc_prev_raw_counts(evsel, ncpus, nthreads) < 0)) 178a7d0a102SJiri Olsa return -ENOMEM; 179a7d0a102SJiri Olsa 180a7d0a102SJiri Olsa return 0; 181a7d0a102SJiri Olsa } 182a7d0a102SJiri Olsa 18363503dbaSJiri Olsa int perf_evlist__alloc_stats(struct evlist *evlist, bool alloc_raw) 184a7d0a102SJiri Olsa { 18532dcd021SJiri Olsa struct evsel *evsel; 186a7d0a102SJiri Olsa 187e5cadb93SArnaldo Carvalho de Melo evlist__for_each_entry(evlist, evsel) { 1887d1e239eSArnaldo Carvalho de Melo if (evsel__alloc_stats(evsel, alloc_raw)) 18924e34f68SJiri Olsa goto out_free; 19024e34f68SJiri Olsa } 19124e34f68SJiri Olsa 19224e34f68SJiri Olsa return 0; 19324e34f68SJiri Olsa 19424e34f68SJiri Olsa out_free: 19524e34f68SJiri Olsa perf_evlist__free_stats(evlist); 19624e34f68SJiri Olsa return -1; 19724e34f68SJiri Olsa } 19824e34f68SJiri Olsa 19963503dbaSJiri Olsa void perf_evlist__free_stats(struct evlist *evlist) 20024e34f68SJiri Olsa { 20132dcd021SJiri Olsa struct evsel *evsel; 20224e34f68SJiri Olsa 203e5cadb93SArnaldo Carvalho de Melo evlist__for_each_entry(evlist, evsel) { 2047d1e239eSArnaldo Carvalho de Melo evsel__free_stat_priv(evsel); 2057d1e239eSArnaldo Carvalho de Melo evsel__free_counts(evsel); 2067d1e239eSArnaldo Carvalho de Melo evsel__free_prev_raw_counts(evsel); 20724e34f68SJiri Olsa } 20824e34f68SJiri Olsa } 20924e34f68SJiri Olsa 21063503dbaSJiri Olsa void perf_evlist__reset_stats(struct evlist *evlist) 21124e34f68SJiri Olsa { 21232dcd021SJiri Olsa struct evsel *evsel; 21324e34f68SJiri Olsa 214e5cadb93SArnaldo Carvalho de Melo evlist__for_each_entry(evlist, evsel) { 2157d1e239eSArnaldo Carvalho de Melo evsel__reset_stat_priv(evsel); 2167d1e239eSArnaldo Carvalho de Melo evsel__reset_counts(evsel); 21724e34f68SJiri Olsa } 21824e34f68SJiri Olsa } 219f80010ebSJiri Olsa 220b63fd11cSSrikar Dronamraju void perf_evlist__reset_prev_raw_counts(struct evlist *evlist) 221b63fd11cSSrikar Dronamraju { 222b63fd11cSSrikar Dronamraju struct evsel *evsel; 223b63fd11cSSrikar Dronamraju 224b63fd11cSSrikar Dronamraju evlist__for_each_entry(evlist, evsel) 2257d1e239eSArnaldo Carvalho de Melo evsel__reset_prev_raw_counts(evsel); 226b63fd11cSSrikar Dronamraju } 227b63fd11cSSrikar Dronamraju 228297767acSJin Yao static void perf_evsel__copy_prev_raw_counts(struct evsel *evsel) 229297767acSJin Yao { 230297767acSJin Yao int ncpus = evsel__nr_cpus(evsel); 231297767acSJin Yao int nthreads = perf_thread_map__nr(evsel->core.threads); 232297767acSJin Yao 233297767acSJin Yao for (int thread = 0; thread < nthreads; thread++) { 234297767acSJin Yao for (int cpu = 0; cpu < ncpus; cpu++) { 235297767acSJin Yao *perf_counts(evsel->counts, cpu, thread) = 236297767acSJin Yao *perf_counts(evsel->prev_raw_counts, cpu, 237297767acSJin Yao thread); 238297767acSJin Yao } 239297767acSJin Yao } 240297767acSJin Yao 241297767acSJin Yao evsel->counts->aggr = evsel->prev_raw_counts->aggr; 242297767acSJin Yao } 243297767acSJin Yao 244297767acSJin Yao void perf_evlist__copy_prev_raw_counts(struct evlist *evlist) 245297767acSJin Yao { 246297767acSJin Yao struct evsel *evsel; 247297767acSJin Yao 248297767acSJin Yao evlist__for_each_entry(evlist, evsel) 249297767acSJin Yao perf_evsel__copy_prev_raw_counts(evsel); 250297767acSJin Yao } 251297767acSJin Yao 252905365f4SJin Yao void perf_evlist__save_aggr_prev_raw_counts(struct evlist *evlist) 253905365f4SJin Yao { 254905365f4SJin Yao struct evsel *evsel; 255905365f4SJin Yao 256905365f4SJin Yao /* 257905365f4SJin Yao * To collect the overall statistics for interval mode, 258905365f4SJin Yao * we copy the counts from evsel->prev_raw_counts to 259905365f4SJin Yao * evsel->counts. The perf_stat_process_counter creates 260905365f4SJin Yao * aggr values from per cpu values, but the per cpu values 261905365f4SJin Yao * are 0 for AGGR_GLOBAL. So we use a trick that saves the 262905365f4SJin Yao * previous aggr value to the first member of perf_counts, 263905365f4SJin Yao * then aggr calculation in process_counter_values can work 264905365f4SJin Yao * correctly. 265905365f4SJin Yao */ 266905365f4SJin Yao evlist__for_each_entry(evlist, evsel) { 267905365f4SJin Yao *perf_counts(evsel->prev_raw_counts, 0, 0) = 268905365f4SJin Yao evsel->prev_raw_counts->aggr; 269905365f4SJin Yao } 270905365f4SJin Yao } 271905365f4SJin Yao 27232dcd021SJiri Olsa static void zero_per_pkg(struct evsel *counter) 273f80010ebSJiri Olsa { 274f80010ebSJiri Olsa if (counter->per_pkg_mask) 27592b5a154SKyle Meyer memset(counter->per_pkg_mask, 0, cpu__max_cpu()); 276f80010ebSJiri Olsa } 277f80010ebSJiri Olsa 27832dcd021SJiri Olsa static int check_per_pkg(struct evsel *counter, 27902d8dabcSStephane Eranian struct perf_counts_values *vals, int cpu, bool *skip) 280f80010ebSJiri Olsa { 281f80010ebSJiri Olsa unsigned long *mask = counter->per_pkg_mask; 282b49aca3eSJiri Olsa struct perf_cpu_map *cpus = evsel__cpus(counter); 283f80010ebSJiri Olsa int s; 284f80010ebSJiri Olsa 285f80010ebSJiri Olsa *skip = false; 286f80010ebSJiri Olsa 287f80010ebSJiri Olsa if (!counter->per_pkg) 288f80010ebSJiri Olsa return 0; 289f80010ebSJiri Olsa 290315c0a1fSJiri Olsa if (perf_cpu_map__empty(cpus)) 291f80010ebSJiri Olsa return 0; 292f80010ebSJiri Olsa 293f80010ebSJiri Olsa if (!mask) { 29492b5a154SKyle Meyer mask = zalloc(cpu__max_cpu()); 295f80010ebSJiri Olsa if (!mask) 296f80010ebSJiri Olsa return -ENOMEM; 297f80010ebSJiri Olsa 298f80010ebSJiri Olsa counter->per_pkg_mask = mask; 299f80010ebSJiri Olsa } 300f80010ebSJiri Olsa 30102d8dabcSStephane Eranian /* 30202d8dabcSStephane Eranian * we do not consider an event that has not run as a good 30302d8dabcSStephane Eranian * instance to mark a package as used (skip=1). Otherwise 30402d8dabcSStephane Eranian * we may run into a situation where the first CPU in a package 30502d8dabcSStephane Eranian * is not running anything, yet the second is, and this function 30602d8dabcSStephane Eranian * would mark the package as used after the first CPU and would 30702d8dabcSStephane Eranian * not read the values from the second CPU. 30802d8dabcSStephane Eranian */ 30902d8dabcSStephane Eranian if (!(vals->run && vals->ena)) 31002d8dabcSStephane Eranian return 0; 31102d8dabcSStephane Eranian 3121fe7a300SJiri Olsa s = cpu_map__get_socket(cpus, cpu, NULL); 313f80010ebSJiri Olsa if (s < 0) 314f80010ebSJiri Olsa return -1; 315f80010ebSJiri Olsa 316f80010ebSJiri Olsa *skip = test_and_set_bit(s, mask) == 1; 317f80010ebSJiri Olsa return 0; 318f80010ebSJiri Olsa } 319f80010ebSJiri Olsa 320f80010ebSJiri Olsa static int 32132dcd021SJiri Olsa process_counter_values(struct perf_stat_config *config, struct evsel *evsel, 322f80010ebSJiri Olsa int cpu, int thread, 323f80010ebSJiri Olsa struct perf_counts_values *count) 324f80010ebSJiri Olsa { 325f80010ebSJiri Olsa struct perf_counts_values *aggr = &evsel->counts->aggr; 326f80010ebSJiri Olsa static struct perf_counts_values zero; 327f80010ebSJiri Olsa bool skip = false; 328f80010ebSJiri Olsa 32902d8dabcSStephane Eranian if (check_per_pkg(evsel, count, cpu, &skip)) { 330f80010ebSJiri Olsa pr_err("failed to read per-pkg counter\n"); 331f80010ebSJiri Olsa return -1; 332f80010ebSJiri Olsa } 333f80010ebSJiri Olsa 334f80010ebSJiri Olsa if (skip) 335f80010ebSJiri Olsa count = &zero; 336f80010ebSJiri Olsa 337f80010ebSJiri Olsa switch (config->aggr_mode) { 338f80010ebSJiri Olsa case AGGR_THREAD: 339f80010ebSJiri Olsa case AGGR_CORE: 340db5742b6SKan Liang case AGGR_DIE: 341f80010ebSJiri Olsa case AGGR_SOCKET: 34286895b48SJiri Olsa case AGGR_NODE: 343f80010ebSJiri Olsa case AGGR_NONE: 344f80010ebSJiri Olsa if (!evsel->snapshot) 34512f5261dSArnaldo Carvalho de Melo evsel__compute_deltas(evsel, cpu, thread, count); 346f80010ebSJiri Olsa perf_counts_values__scale(count, config->scale, NULL); 3474fc4d8dfSJin Yao if ((config->aggr_mode == AGGR_NONE) && (!evsel->percore)) { 3484fc4d8dfSJin Yao perf_stat__update_shadow_stats(evsel, count->val, 3494fc4d8dfSJin Yao cpu, &rt_stat); 3504fc4d8dfSJin Yao } 3514fc4d8dfSJin Yao 35214e72a21SJin Yao if (config->aggr_mode == AGGR_THREAD) { 35314e72a21SJin Yao if (config->stats) 35414e72a21SJin Yao perf_stat__update_shadow_stats(evsel, 35514e72a21SJin Yao count->val, 0, &config->stats[thread]); 35614e72a21SJin Yao else 35714e72a21SJin Yao perf_stat__update_shadow_stats(evsel, 35814e72a21SJin Yao count->val, 0, &rt_stat); 35914e72a21SJin Yao } 360f80010ebSJiri Olsa break; 361f80010ebSJiri Olsa case AGGR_GLOBAL: 362f80010ebSJiri Olsa aggr->val += count->val; 363f80010ebSJiri Olsa aggr->ena += count->ena; 364f80010ebSJiri Olsa aggr->run += count->run; 365208df99eSJiri Olsa case AGGR_UNSET: 366f80010ebSJiri Olsa default: 367f80010ebSJiri Olsa break; 368f80010ebSJiri Olsa } 369f80010ebSJiri Olsa 370f80010ebSJiri Olsa return 0; 371f80010ebSJiri Olsa } 372f80010ebSJiri Olsa 373f80010ebSJiri Olsa static int process_counter_maps(struct perf_stat_config *config, 37432dcd021SJiri Olsa struct evsel *counter) 375f80010ebSJiri Olsa { 376a2f354e3SJiri Olsa int nthreads = perf_thread_map__nr(counter->core.threads); 3775eb88f04SArnaldo Carvalho de Melo int ncpus = evsel__nr_cpus(counter); 378f80010ebSJiri Olsa int cpu, thread; 379f80010ebSJiri Olsa 380648b5af3SJiri Olsa if (counter->core.system_wide) 381f80010ebSJiri Olsa nthreads = 1; 382f80010ebSJiri Olsa 383f80010ebSJiri Olsa for (thread = 0; thread < nthreads; thread++) { 384f80010ebSJiri Olsa for (cpu = 0; cpu < ncpus; cpu++) { 385f80010ebSJiri Olsa if (process_counter_values(config, counter, cpu, thread, 386f80010ebSJiri Olsa perf_counts(counter->counts, cpu, thread))) 387f80010ebSJiri Olsa return -1; 388f80010ebSJiri Olsa } 389f80010ebSJiri Olsa } 390f80010ebSJiri Olsa 391f80010ebSJiri Olsa return 0; 392f80010ebSJiri Olsa } 393f80010ebSJiri Olsa 394f80010ebSJiri Olsa int perf_stat_process_counter(struct perf_stat_config *config, 39532dcd021SJiri Olsa struct evsel *counter) 396f80010ebSJiri Olsa { 397f80010ebSJiri Olsa struct perf_counts_values *aggr = &counter->counts->aggr; 398e669e833SArnaldo Carvalho de Melo struct perf_stat_evsel *ps = counter->stats; 399f80010ebSJiri Olsa u64 *count = counter->counts->aggr.values; 400f80010ebSJiri Olsa int i, ret; 401f80010ebSJiri Olsa 402f80010ebSJiri Olsa aggr->val = aggr->ena = aggr->run = 0; 403f80010ebSJiri Olsa 40451fd2df1SJiri Olsa /* 40551fd2df1SJiri Olsa * We calculate counter's data every interval, 40651fd2df1SJiri Olsa * and the display code shows ps->res_stats 40751fd2df1SJiri Olsa * avg value. We need to zero the stats for 40851fd2df1SJiri Olsa * interval mode, otherwise overall avg running 40951fd2df1SJiri Olsa * averages will be shown for each interval. 41051fd2df1SJiri Olsa */ 411c7e5b328SJin Yao if (config->interval || config->summary) { 4120e0bf1eaSJin Yao for (i = 0; i < 3; i++) 4130e0bf1eaSJin Yao init_stats(&ps->res_stats[i]); 4140e0bf1eaSJin Yao } 41551fd2df1SJiri Olsa 416f80010ebSJiri Olsa if (counter->per_pkg) 417f80010ebSJiri Olsa zero_per_pkg(counter); 418f80010ebSJiri Olsa 419f80010ebSJiri Olsa ret = process_counter_maps(config, counter); 420f80010ebSJiri Olsa if (ret) 421f80010ebSJiri Olsa return ret; 422f80010ebSJiri Olsa 423f80010ebSJiri Olsa if (config->aggr_mode != AGGR_GLOBAL) 424f80010ebSJiri Olsa return 0; 425f80010ebSJiri Olsa 426f80010ebSJiri Olsa if (!counter->snapshot) 42712f5261dSArnaldo Carvalho de Melo evsel__compute_deltas(counter, -1, -1, aggr); 428f80010ebSJiri Olsa perf_counts_values__scale(aggr, config->scale, &counter->counts->scaled); 429f80010ebSJiri Olsa 430f80010ebSJiri Olsa for (i = 0; i < 3; i++) 431f80010ebSJiri Olsa update_stats(&ps->res_stats[i], count[i]); 432f80010ebSJiri Olsa 433bb963e16SNamhyung Kim if (verbose > 0) { 434f80010ebSJiri Olsa fprintf(config->output, "%s: %" PRIu64 " %" PRIu64 " %" PRIu64 "\n", 4358ab2e96dSArnaldo Carvalho de Melo evsel__name(counter), count[0], count[1], count[2]); 436f80010ebSJiri Olsa } 437f80010ebSJiri Olsa 438f80010ebSJiri Olsa /* 439f80010ebSJiri Olsa * Save the full runtime - to allow normalization during printout: 440f80010ebSJiri Olsa */ 4411fcd0394SJin Yao perf_stat__update_shadow_stats(counter, *count, 0, &rt_stat); 442f80010ebSJiri Olsa 443f80010ebSJiri Olsa return 0; 444f80010ebSJiri Olsa } 4450ea0e355SJiri Olsa 44689f1688aSJiri Olsa int perf_event__process_stat_event(struct perf_session *session, 44789f1688aSJiri Olsa union perf_event *event) 4480ea0e355SJiri Olsa { 4490ea0e355SJiri Olsa struct perf_counts_values count; 45072932371SJiri Olsa struct perf_record_stat *st = &event->stat; 45132dcd021SJiri Olsa struct evsel *counter; 4520ea0e355SJiri Olsa 4530ea0e355SJiri Olsa count.val = st->val; 4540ea0e355SJiri Olsa count.ena = st->ena; 4550ea0e355SJiri Olsa count.run = st->run; 4560ea0e355SJiri Olsa 4570ea0e355SJiri Olsa counter = perf_evlist__id2evsel(session->evlist, st->id); 4580ea0e355SJiri Olsa if (!counter) { 4590ea0e355SJiri Olsa pr_err("Failed to resolve counter for stat event.\n"); 4600ea0e355SJiri Olsa return -EINVAL; 4610ea0e355SJiri Olsa } 4620ea0e355SJiri Olsa 4630ea0e355SJiri Olsa *perf_counts(counter->counts, st->cpu, st->thread) = count; 4640ea0e355SJiri Olsa counter->supported = true; 4650ea0e355SJiri Olsa return 0; 4660ea0e355SJiri Olsa } 467e08a4564SJiri Olsa 468e08a4564SJiri Olsa size_t perf_event__fprintf_stat(union perf_event *event, FILE *fp) 469e08a4564SJiri Olsa { 47072932371SJiri Olsa struct perf_record_stat *st = (struct perf_record_stat *)event; 471e08a4564SJiri Olsa size_t ret; 472e08a4564SJiri Olsa 47318a13a60SJiri Olsa ret = fprintf(fp, "\n... id %" PRI_lu64 ", cpu %d, thread %d\n", 474e08a4564SJiri Olsa st->id, st->cpu, st->thread); 47518a13a60SJiri Olsa ret += fprintf(fp, "... value %" PRI_lu64 ", enabled %" PRI_lu64 ", running %" PRI_lu64 "\n", 476e08a4564SJiri Olsa st->val, st->ena, st->run); 477e08a4564SJiri Olsa 478e08a4564SJiri Olsa return ret; 479e08a4564SJiri Olsa } 480e08a4564SJiri Olsa 481e08a4564SJiri Olsa size_t perf_event__fprintf_stat_round(union perf_event *event, FILE *fp) 482e08a4564SJiri Olsa { 48372932371SJiri Olsa struct perf_record_stat_round *rd = (struct perf_record_stat_round *)event; 484e08a4564SJiri Olsa size_t ret; 485e08a4564SJiri Olsa 486782adbe2SJiri Olsa ret = fprintf(fp, "\n... time %" PRI_lu64 ", type %s\n", rd->time, 487e08a4564SJiri Olsa rd->type == PERF_STAT_ROUND_TYPE__FINAL ? "FINAL" : "INTERVAL"); 488e08a4564SJiri Olsa 489e08a4564SJiri Olsa return ret; 490e08a4564SJiri Olsa } 491e08a4564SJiri Olsa 492e08a4564SJiri Olsa size_t perf_event__fprintf_stat_config(union perf_event *event, FILE *fp) 493e08a4564SJiri Olsa { 494e08a4564SJiri Olsa struct perf_stat_config sc; 495e08a4564SJiri Olsa size_t ret; 496e08a4564SJiri Olsa 497e08a4564SJiri Olsa perf_event__read_stat_config(&sc, &event->stat_config); 498e08a4564SJiri Olsa 499e08a4564SJiri Olsa ret = fprintf(fp, "\n"); 500e08a4564SJiri Olsa ret += fprintf(fp, "... aggr_mode %d\n", sc.aggr_mode); 501e08a4564SJiri Olsa ret += fprintf(fp, "... scale %d\n", sc.scale); 502e08a4564SJiri Olsa ret += fprintf(fp, "... interval %u\n", sc.interval); 503e08a4564SJiri Olsa 504e08a4564SJiri Olsa return ret; 505e08a4564SJiri Olsa } 506d09cefd2SJiri Olsa 50732dcd021SJiri Olsa int create_perf_stat_counter(struct evsel *evsel, 508d09cefd2SJiri Olsa struct perf_stat_config *config, 5094804e011SAndi Kleen struct target *target, 5104804e011SAndi Kleen int cpu) 511d09cefd2SJiri Olsa { 5121fc632ceSJiri Olsa struct perf_event_attr *attr = &evsel->core.attr; 51332dcd021SJiri Olsa struct evsel *leader = evsel->leader; 514d09cefd2SJiri Olsa 515d09cefd2SJiri Olsa attr->read_format = PERF_FORMAT_TOTAL_TIME_ENABLED | 516d09cefd2SJiri Olsa PERF_FORMAT_TOTAL_TIME_RUNNING; 517d09cefd2SJiri Olsa 518d09cefd2SJiri Olsa /* 519d09cefd2SJiri Olsa * The event is part of non trivial group, let's enable 520d09cefd2SJiri Olsa * the group read (for leader) and ID retrieval for all 521d09cefd2SJiri Olsa * members. 522d09cefd2SJiri Olsa */ 5235643b1a5SJiri Olsa if (leader->core.nr_members > 1) 524d09cefd2SJiri Olsa attr->read_format |= PERF_FORMAT_ID|PERF_FORMAT_GROUP; 525d09cefd2SJiri Olsa 526d09cefd2SJiri Olsa attr->inherit = !config->no_inherit; 527d09cefd2SJiri Olsa 528d09cefd2SJiri Olsa /* 529d09cefd2SJiri Olsa * Some events get initialized with sample_(period/type) set, 530d09cefd2SJiri Olsa * like tracepoints. Clear it up for counting. 531d09cefd2SJiri Olsa */ 532d09cefd2SJiri Olsa attr->sample_period = 0; 533d09cefd2SJiri Olsa 534d09cefd2SJiri Olsa if (config->identifier) 535d09cefd2SJiri Olsa attr->sample_type = PERF_SAMPLE_IDENTIFIER; 536d09cefd2SJiri Olsa 537dd071024SJin Yao if (config->all_user) { 538dd071024SJin Yao attr->exclude_kernel = 1; 539dd071024SJin Yao attr->exclude_user = 0; 540dd071024SJin Yao } 541dd071024SJin Yao 542dd071024SJin Yao if (config->all_kernel) { 543dd071024SJin Yao attr->exclude_kernel = 0; 544dd071024SJin Yao attr->exclude_user = 1; 545dd071024SJin Yao } 546dd071024SJin Yao 547d09cefd2SJiri Olsa /* 548d09cefd2SJiri Olsa * Disabling all counters initially, they will be enabled 549d09cefd2SJiri Olsa * either manually by us or by kernel via enable_on_exec 550d09cefd2SJiri Olsa * set later. 551d09cefd2SJiri Olsa */ 552c754c382SArnaldo Carvalho de Melo if (evsel__is_group_leader(evsel)) { 553d09cefd2SJiri Olsa attr->disabled = 1; 554d09cefd2SJiri Olsa 555d09cefd2SJiri Olsa /* 556d09cefd2SJiri Olsa * In case of initial_delay we enable tracee 557d09cefd2SJiri Olsa * events manually. 558d09cefd2SJiri Olsa */ 559d09cefd2SJiri Olsa if (target__none(target) && !config->initial_delay) 560d09cefd2SJiri Olsa attr->enable_on_exec = 1; 561d09cefd2SJiri Olsa } 562d09cefd2SJiri Olsa 563d09cefd2SJiri Olsa if (target__has_cpu(target) && !target__has_per_thread(target)) 564aa8c406bSArnaldo Carvalho de Melo return evsel__open_per_cpu(evsel, evsel__cpus(evsel), cpu); 565d09cefd2SJiri Olsa 566aa8c406bSArnaldo Carvalho de Melo return evsel__open_per_thread(evsel, evsel->core.threads); 567d09cefd2SJiri Olsa } 568