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), 9855c36a9fSAndi Kleen ID(TOPDOWN_RETIRING, topdown-retiring), 9955c36a9fSAndi Kleen ID(TOPDOWN_BAD_SPEC, topdown-bad-spec), 10055c36a9fSAndi Kleen ID(TOPDOWN_FE_BOUND, topdown-fe-bound), 10155c36a9fSAndi Kleen ID(TOPDOWN_BE_BOUND, topdown-be-bound), 102*63e39aa6SKan Liang ID(TOPDOWN_HEAVY_OPS, topdown-heavy-ops), 103*63e39aa6SKan Liang ID(TOPDOWN_BR_MISPREDICT, topdown-br-mispredict), 104*63e39aa6SKan Liang ID(TOPDOWN_FETCH_LAT, topdown-fetch-lat), 105*63e39aa6SKan Liang ID(TOPDOWN_MEM_BOUND, topdown-mem-bound), 106daefd0bcSKan Liang ID(SMI_NUM, msr/smi/), 107daefd0bcSKan Liang ID(APERF, msr/aperf/), 108e2f56da1SJiri Olsa }; 109e2f56da1SJiri Olsa #undef ID 110e2f56da1SJiri Olsa 11132dcd021SJiri Olsa static void perf_stat_evsel_id_init(struct evsel *evsel) 112e2f56da1SJiri Olsa { 113e669e833SArnaldo Carvalho de Melo struct perf_stat_evsel *ps = evsel->stats; 114e2f56da1SJiri Olsa int i; 115e2f56da1SJiri Olsa 116e2f56da1SJiri Olsa /* ps->id is 0 hence PERF_STAT_EVSEL_ID__NONE by default */ 117e2f56da1SJiri Olsa 118e2f56da1SJiri Olsa for (i = 0; i < PERF_STAT_EVSEL_ID__MAX; i++) { 1198ab2e96dSArnaldo Carvalho de Melo if (!strcmp(evsel__name(evsel), id_str[i])) { 120e2f56da1SJiri Olsa ps->id = i; 121e2f56da1SJiri Olsa break; 122e2f56da1SJiri Olsa } 123e2f56da1SJiri Olsa } 124e2f56da1SJiri Olsa } 125a9a3a4d9SJiri Olsa 1267d1e239eSArnaldo Carvalho de Melo static void evsel__reset_stat_priv(struct evsel *evsel) 1279689edfaSJiri Olsa { 1289689edfaSJiri Olsa int i; 129e669e833SArnaldo Carvalho de Melo struct perf_stat_evsel *ps = evsel->stats; 1309689edfaSJiri Olsa 1319689edfaSJiri Olsa for (i = 0; i < 3; i++) 1329689edfaSJiri Olsa init_stats(&ps->res_stats[i]); 1339689edfaSJiri Olsa 1349689edfaSJiri Olsa perf_stat_evsel_id_init(evsel); 1359689edfaSJiri Olsa } 1369689edfaSJiri Olsa 1377d1e239eSArnaldo Carvalho de Melo static int evsel__alloc_stat_priv(struct evsel *evsel) 1389689edfaSJiri Olsa { 139e669e833SArnaldo Carvalho de Melo evsel->stats = zalloc(sizeof(struct perf_stat_evsel)); 140e669e833SArnaldo Carvalho de Melo if (evsel->stats == NULL) 1419689edfaSJiri Olsa return -ENOMEM; 1427d1e239eSArnaldo Carvalho de Melo evsel__reset_stat_priv(evsel); 1439689edfaSJiri Olsa return 0; 1449689edfaSJiri Olsa } 1459689edfaSJiri Olsa 1467d1e239eSArnaldo Carvalho de Melo static void evsel__free_stat_priv(struct evsel *evsel) 1479689edfaSJiri Olsa { 148e669e833SArnaldo Carvalho de Melo struct perf_stat_evsel *ps = evsel->stats; 149f7794d52SJiri Olsa 150f7794d52SJiri Olsa if (ps) 151d8f9da24SArnaldo Carvalho de Melo zfree(&ps->group_data); 152e669e833SArnaldo Carvalho de Melo zfree(&evsel->stats); 1539689edfaSJiri Olsa } 154a939512dSJiri Olsa 1557d1e239eSArnaldo Carvalho de Melo static int evsel__alloc_prev_raw_counts(struct evsel *evsel, int ncpus, int nthreads) 156a939512dSJiri Olsa { 157a939512dSJiri Olsa struct perf_counts *counts; 158a939512dSJiri Olsa 159a939512dSJiri Olsa counts = perf_counts__new(ncpus, nthreads); 160a939512dSJiri Olsa if (counts) 161a939512dSJiri Olsa evsel->prev_raw_counts = counts; 162a939512dSJiri Olsa 163a939512dSJiri Olsa return counts ? 0 : -ENOMEM; 164a939512dSJiri Olsa } 165a939512dSJiri Olsa 1667d1e239eSArnaldo Carvalho de Melo static void evsel__free_prev_raw_counts(struct evsel *evsel) 167a939512dSJiri Olsa { 168a939512dSJiri Olsa perf_counts__delete(evsel->prev_raw_counts); 169a939512dSJiri Olsa evsel->prev_raw_counts = NULL; 170a939512dSJiri Olsa } 17124e34f68SJiri Olsa 1727d1e239eSArnaldo Carvalho de Melo static void evsel__reset_prev_raw_counts(struct evsel *evsel) 173b63fd11cSSrikar Dronamraju { 174cf4d9bd6SJin Yao if (evsel->prev_raw_counts) 175cf4d9bd6SJin Yao perf_counts__reset(evsel->prev_raw_counts); 176b63fd11cSSrikar Dronamraju } 177b63fd11cSSrikar Dronamraju 1787d1e239eSArnaldo Carvalho de Melo static int evsel__alloc_stats(struct evsel *evsel, bool alloc_raw) 17924e34f68SJiri Olsa { 1805eb88f04SArnaldo Carvalho de Melo int ncpus = evsel__nr_cpus(evsel); 181a2f354e3SJiri Olsa int nthreads = perf_thread_map__nr(evsel->core.threads); 18224e34f68SJiri Olsa 1837d1e239eSArnaldo Carvalho de Melo if (evsel__alloc_stat_priv(evsel) < 0 || 1847d1e239eSArnaldo Carvalho de Melo evsel__alloc_counts(evsel, ncpus, nthreads) < 0 || 1857d1e239eSArnaldo Carvalho de Melo (alloc_raw && evsel__alloc_prev_raw_counts(evsel, ncpus, nthreads) < 0)) 186a7d0a102SJiri Olsa return -ENOMEM; 187a7d0a102SJiri Olsa 188a7d0a102SJiri Olsa return 0; 189a7d0a102SJiri Olsa } 190a7d0a102SJiri Olsa 19153f5e908SArnaldo Carvalho de Melo int evlist__alloc_stats(struct evlist *evlist, bool alloc_raw) 192a7d0a102SJiri Olsa { 19332dcd021SJiri Olsa struct evsel *evsel; 194a7d0a102SJiri Olsa 195e5cadb93SArnaldo Carvalho de Melo evlist__for_each_entry(evlist, evsel) { 1967d1e239eSArnaldo Carvalho de Melo if (evsel__alloc_stats(evsel, alloc_raw)) 19724e34f68SJiri Olsa goto out_free; 19824e34f68SJiri Olsa } 19924e34f68SJiri Olsa 20024e34f68SJiri Olsa return 0; 20124e34f68SJiri Olsa 20224e34f68SJiri Olsa out_free: 20353f5e908SArnaldo Carvalho de Melo evlist__free_stats(evlist); 20424e34f68SJiri Olsa return -1; 20524e34f68SJiri Olsa } 20624e34f68SJiri Olsa 20753f5e908SArnaldo Carvalho de Melo void evlist__free_stats(struct evlist *evlist) 20824e34f68SJiri Olsa { 20932dcd021SJiri Olsa struct evsel *evsel; 21024e34f68SJiri Olsa 211e5cadb93SArnaldo Carvalho de Melo evlist__for_each_entry(evlist, evsel) { 2127d1e239eSArnaldo Carvalho de Melo evsel__free_stat_priv(evsel); 2137d1e239eSArnaldo Carvalho de Melo evsel__free_counts(evsel); 2147d1e239eSArnaldo Carvalho de Melo evsel__free_prev_raw_counts(evsel); 21524e34f68SJiri Olsa } 21624e34f68SJiri Olsa } 21724e34f68SJiri Olsa 21853f5e908SArnaldo Carvalho de Melo void evlist__reset_stats(struct evlist *evlist) 21924e34f68SJiri Olsa { 22032dcd021SJiri Olsa struct evsel *evsel; 22124e34f68SJiri Olsa 222e5cadb93SArnaldo Carvalho de Melo evlist__for_each_entry(evlist, evsel) { 2237d1e239eSArnaldo Carvalho de Melo evsel__reset_stat_priv(evsel); 2247d1e239eSArnaldo Carvalho de Melo evsel__reset_counts(evsel); 22524e34f68SJiri Olsa } 22624e34f68SJiri Olsa } 227f80010ebSJiri Olsa 22853f5e908SArnaldo Carvalho de Melo void evlist__reset_prev_raw_counts(struct evlist *evlist) 229b63fd11cSSrikar Dronamraju { 230b63fd11cSSrikar Dronamraju struct evsel *evsel; 231b63fd11cSSrikar Dronamraju 232b63fd11cSSrikar Dronamraju evlist__for_each_entry(evlist, evsel) 2337d1e239eSArnaldo Carvalho de Melo evsel__reset_prev_raw_counts(evsel); 234b63fd11cSSrikar Dronamraju } 235b63fd11cSSrikar Dronamraju 23656933029SArnaldo Carvalho de Melo static void evsel__copy_prev_raw_counts(struct evsel *evsel) 237297767acSJin Yao { 238297767acSJin Yao int ncpus = evsel__nr_cpus(evsel); 239297767acSJin Yao int nthreads = perf_thread_map__nr(evsel->core.threads); 240297767acSJin Yao 241297767acSJin Yao for (int thread = 0; thread < nthreads; thread++) { 242297767acSJin Yao for (int cpu = 0; cpu < ncpus; cpu++) { 243297767acSJin Yao *perf_counts(evsel->counts, cpu, thread) = 244297767acSJin Yao *perf_counts(evsel->prev_raw_counts, cpu, 245297767acSJin Yao thread); 246297767acSJin Yao } 247297767acSJin Yao } 248297767acSJin Yao 249297767acSJin Yao evsel->counts->aggr = evsel->prev_raw_counts->aggr; 250297767acSJin Yao } 251297767acSJin Yao 25253f5e908SArnaldo Carvalho de Melo void evlist__copy_prev_raw_counts(struct evlist *evlist) 253297767acSJin Yao { 254297767acSJin Yao struct evsel *evsel; 255297767acSJin Yao 256297767acSJin Yao evlist__for_each_entry(evlist, evsel) 25756933029SArnaldo Carvalho de Melo evsel__copy_prev_raw_counts(evsel); 258297767acSJin Yao } 259297767acSJin Yao 26053f5e908SArnaldo Carvalho de Melo void evlist__save_aggr_prev_raw_counts(struct evlist *evlist) 261905365f4SJin Yao { 262905365f4SJin Yao struct evsel *evsel; 263905365f4SJin Yao 264905365f4SJin Yao /* 265905365f4SJin Yao * To collect the overall statistics for interval mode, 266905365f4SJin Yao * we copy the counts from evsel->prev_raw_counts to 267905365f4SJin Yao * evsel->counts. The perf_stat_process_counter creates 268905365f4SJin Yao * aggr values from per cpu values, but the per cpu values 269905365f4SJin Yao * are 0 for AGGR_GLOBAL. So we use a trick that saves the 270905365f4SJin Yao * previous aggr value to the first member of perf_counts, 271905365f4SJin Yao * then aggr calculation in process_counter_values can work 272905365f4SJin Yao * correctly. 273905365f4SJin Yao */ 274905365f4SJin Yao evlist__for_each_entry(evlist, evsel) { 275905365f4SJin Yao *perf_counts(evsel->prev_raw_counts, 0, 0) = 276905365f4SJin Yao evsel->prev_raw_counts->aggr; 277905365f4SJin Yao } 278905365f4SJin Yao } 279905365f4SJin Yao 28032dcd021SJiri Olsa static void zero_per_pkg(struct evsel *counter) 281f80010ebSJiri Olsa { 282f80010ebSJiri Olsa if (counter->per_pkg_mask) 28392b5a154SKyle Meyer memset(counter->per_pkg_mask, 0, cpu__max_cpu()); 284f80010ebSJiri Olsa } 285f80010ebSJiri Olsa 28632dcd021SJiri Olsa static int check_per_pkg(struct evsel *counter, 28702d8dabcSStephane Eranian struct perf_counts_values *vals, int cpu, bool *skip) 288f80010ebSJiri Olsa { 289f80010ebSJiri Olsa unsigned long *mask = counter->per_pkg_mask; 290b49aca3eSJiri Olsa struct perf_cpu_map *cpus = evsel__cpus(counter); 291f80010ebSJiri Olsa int s; 292f80010ebSJiri Olsa 293f80010ebSJiri Olsa *skip = false; 294f80010ebSJiri Olsa 295f80010ebSJiri Olsa if (!counter->per_pkg) 296f80010ebSJiri Olsa return 0; 297f80010ebSJiri Olsa 298315c0a1fSJiri Olsa if (perf_cpu_map__empty(cpus)) 299f80010ebSJiri Olsa return 0; 300f80010ebSJiri Olsa 301f80010ebSJiri Olsa if (!mask) { 30292b5a154SKyle Meyer mask = zalloc(cpu__max_cpu()); 303f80010ebSJiri Olsa if (!mask) 304f80010ebSJiri Olsa return -ENOMEM; 305f80010ebSJiri Olsa 306f80010ebSJiri Olsa counter->per_pkg_mask = mask; 307f80010ebSJiri Olsa } 308f80010ebSJiri Olsa 30902d8dabcSStephane Eranian /* 31002d8dabcSStephane Eranian * we do not consider an event that has not run as a good 31102d8dabcSStephane Eranian * instance to mark a package as used (skip=1). Otherwise 31202d8dabcSStephane Eranian * we may run into a situation where the first CPU in a package 31302d8dabcSStephane Eranian * is not running anything, yet the second is, and this function 31402d8dabcSStephane Eranian * would mark the package as used after the first CPU and would 31502d8dabcSStephane Eranian * not read the values from the second CPU. 31602d8dabcSStephane Eranian */ 31702d8dabcSStephane Eranian if (!(vals->run && vals->ena)) 31802d8dabcSStephane Eranian return 0; 31902d8dabcSStephane Eranian 3201a270cb6SJames Clark s = cpu_map__get_socket(cpus, cpu, NULL).socket; 321f80010ebSJiri Olsa if (s < 0) 322f80010ebSJiri Olsa return -1; 323f80010ebSJiri Olsa 324f80010ebSJiri Olsa *skip = test_and_set_bit(s, mask) == 1; 325f80010ebSJiri Olsa return 0; 326f80010ebSJiri Olsa } 327f80010ebSJiri Olsa 328f80010ebSJiri Olsa static int 32932dcd021SJiri Olsa process_counter_values(struct perf_stat_config *config, struct evsel *evsel, 330f80010ebSJiri Olsa int cpu, int thread, 331f80010ebSJiri Olsa struct perf_counts_values *count) 332f80010ebSJiri Olsa { 333f80010ebSJiri Olsa struct perf_counts_values *aggr = &evsel->counts->aggr; 334f80010ebSJiri Olsa static struct perf_counts_values zero; 335f80010ebSJiri Olsa bool skip = false; 336f80010ebSJiri Olsa 33702d8dabcSStephane Eranian if (check_per_pkg(evsel, count, cpu, &skip)) { 338f80010ebSJiri Olsa pr_err("failed to read per-pkg counter\n"); 339f80010ebSJiri Olsa return -1; 340f80010ebSJiri Olsa } 341f80010ebSJiri Olsa 342f80010ebSJiri Olsa if (skip) 343f80010ebSJiri Olsa count = &zero; 344f80010ebSJiri Olsa 345f80010ebSJiri Olsa switch (config->aggr_mode) { 346f80010ebSJiri Olsa case AGGR_THREAD: 347f80010ebSJiri Olsa case AGGR_CORE: 348db5742b6SKan Liang case AGGR_DIE: 349f80010ebSJiri Olsa case AGGR_SOCKET: 35086895b48SJiri Olsa case AGGR_NODE: 351f80010ebSJiri Olsa case AGGR_NONE: 352f80010ebSJiri Olsa if (!evsel->snapshot) 35312f5261dSArnaldo Carvalho de Melo evsel__compute_deltas(evsel, cpu, thread, count); 354f80010ebSJiri Olsa perf_counts_values__scale(count, config->scale, NULL); 3554fc4d8dfSJin Yao if ((config->aggr_mode == AGGR_NONE) && (!evsel->percore)) { 3564fc4d8dfSJin Yao perf_stat__update_shadow_stats(evsel, count->val, 3574fc4d8dfSJin Yao cpu, &rt_stat); 3584fc4d8dfSJin Yao } 3594fc4d8dfSJin Yao 36014e72a21SJin Yao if (config->aggr_mode == AGGR_THREAD) { 36114e72a21SJin Yao if (config->stats) 36214e72a21SJin Yao perf_stat__update_shadow_stats(evsel, 36314e72a21SJin Yao count->val, 0, &config->stats[thread]); 36414e72a21SJin Yao else 36514e72a21SJin Yao perf_stat__update_shadow_stats(evsel, 36614e72a21SJin Yao count->val, 0, &rt_stat); 36714e72a21SJin Yao } 368f80010ebSJiri Olsa break; 369f80010ebSJiri Olsa case AGGR_GLOBAL: 370f80010ebSJiri Olsa aggr->val += count->val; 371f80010ebSJiri Olsa aggr->ena += count->ena; 372f80010ebSJiri Olsa aggr->run += count->run; 373208df99eSJiri Olsa case AGGR_UNSET: 374f80010ebSJiri Olsa default: 375f80010ebSJiri Olsa break; 376f80010ebSJiri Olsa } 377f80010ebSJiri Olsa 378f80010ebSJiri Olsa return 0; 379f80010ebSJiri Olsa } 380f80010ebSJiri Olsa 381f80010ebSJiri Olsa static int process_counter_maps(struct perf_stat_config *config, 38232dcd021SJiri Olsa struct evsel *counter) 383f80010ebSJiri Olsa { 384a2f354e3SJiri Olsa int nthreads = perf_thread_map__nr(counter->core.threads); 3855eb88f04SArnaldo Carvalho de Melo int ncpus = evsel__nr_cpus(counter); 386f80010ebSJiri Olsa int cpu, thread; 387f80010ebSJiri Olsa 388648b5af3SJiri Olsa if (counter->core.system_wide) 389f80010ebSJiri Olsa nthreads = 1; 390f80010ebSJiri Olsa 391f80010ebSJiri Olsa for (thread = 0; thread < nthreads; thread++) { 392f80010ebSJiri Olsa for (cpu = 0; cpu < ncpus; cpu++) { 393f80010ebSJiri Olsa if (process_counter_values(config, counter, cpu, thread, 394f80010ebSJiri Olsa perf_counts(counter->counts, cpu, thread))) 395f80010ebSJiri Olsa return -1; 396f80010ebSJiri Olsa } 397f80010ebSJiri Olsa } 398f80010ebSJiri Olsa 399f80010ebSJiri Olsa return 0; 400f80010ebSJiri Olsa } 401f80010ebSJiri Olsa 402f80010ebSJiri Olsa int perf_stat_process_counter(struct perf_stat_config *config, 40332dcd021SJiri Olsa struct evsel *counter) 404f80010ebSJiri Olsa { 405f80010ebSJiri Olsa struct perf_counts_values *aggr = &counter->counts->aggr; 406e669e833SArnaldo Carvalho de Melo struct perf_stat_evsel *ps = counter->stats; 407f80010ebSJiri Olsa u64 *count = counter->counts->aggr.values; 408f80010ebSJiri Olsa int i, ret; 409f80010ebSJiri Olsa 410f80010ebSJiri Olsa aggr->val = aggr->ena = aggr->run = 0; 411f80010ebSJiri Olsa 41251fd2df1SJiri Olsa /* 41351fd2df1SJiri Olsa * We calculate counter's data every interval, 41451fd2df1SJiri Olsa * and the display code shows ps->res_stats 41551fd2df1SJiri Olsa * avg value. We need to zero the stats for 41651fd2df1SJiri Olsa * interval mode, otherwise overall avg running 41751fd2df1SJiri Olsa * averages will be shown for each interval. 41851fd2df1SJiri Olsa */ 419c7e5b328SJin Yao if (config->interval || config->summary) { 4200e0bf1eaSJin Yao for (i = 0; i < 3; i++) 4210e0bf1eaSJin Yao init_stats(&ps->res_stats[i]); 4220e0bf1eaSJin Yao } 42351fd2df1SJiri Olsa 424f80010ebSJiri Olsa if (counter->per_pkg) 425f80010ebSJiri Olsa zero_per_pkg(counter); 426f80010ebSJiri Olsa 427f80010ebSJiri Olsa ret = process_counter_maps(config, counter); 428f80010ebSJiri Olsa if (ret) 429f80010ebSJiri Olsa return ret; 430f80010ebSJiri Olsa 431f80010ebSJiri Olsa if (config->aggr_mode != AGGR_GLOBAL) 432f80010ebSJiri Olsa return 0; 433f80010ebSJiri Olsa 434f80010ebSJiri Olsa if (!counter->snapshot) 43512f5261dSArnaldo Carvalho de Melo evsel__compute_deltas(counter, -1, -1, aggr); 436f80010ebSJiri Olsa perf_counts_values__scale(aggr, config->scale, &counter->counts->scaled); 437f80010ebSJiri Olsa 438f80010ebSJiri Olsa for (i = 0; i < 3; i++) 439f80010ebSJiri Olsa update_stats(&ps->res_stats[i], count[i]); 440f80010ebSJiri Olsa 441bb963e16SNamhyung Kim if (verbose > 0) { 442f80010ebSJiri Olsa fprintf(config->output, "%s: %" PRIu64 " %" PRIu64 " %" PRIu64 "\n", 4438ab2e96dSArnaldo Carvalho de Melo evsel__name(counter), count[0], count[1], count[2]); 444f80010ebSJiri Olsa } 445f80010ebSJiri Olsa 446f80010ebSJiri Olsa /* 447f80010ebSJiri Olsa * Save the full runtime - to allow normalization during printout: 448f80010ebSJiri Olsa */ 4491fcd0394SJin Yao perf_stat__update_shadow_stats(counter, *count, 0, &rt_stat); 450f80010ebSJiri Olsa 451f80010ebSJiri Olsa return 0; 452f80010ebSJiri Olsa } 4530ea0e355SJiri Olsa 45489f1688aSJiri Olsa int perf_event__process_stat_event(struct perf_session *session, 45589f1688aSJiri Olsa union perf_event *event) 4560ea0e355SJiri Olsa { 4570ea0e355SJiri Olsa struct perf_counts_values count; 45872932371SJiri Olsa struct perf_record_stat *st = &event->stat; 45932dcd021SJiri Olsa struct evsel *counter; 4600ea0e355SJiri Olsa 4610ea0e355SJiri Olsa count.val = st->val; 4620ea0e355SJiri Olsa count.ena = st->ena; 4630ea0e355SJiri Olsa count.run = st->run; 4640ea0e355SJiri Olsa 4653ccf8a7bSArnaldo Carvalho de Melo counter = evlist__id2evsel(session->evlist, st->id); 4660ea0e355SJiri Olsa if (!counter) { 4670ea0e355SJiri Olsa pr_err("Failed to resolve counter for stat event.\n"); 4680ea0e355SJiri Olsa return -EINVAL; 4690ea0e355SJiri Olsa } 4700ea0e355SJiri Olsa 4710ea0e355SJiri Olsa *perf_counts(counter->counts, st->cpu, st->thread) = count; 4720ea0e355SJiri Olsa counter->supported = true; 4730ea0e355SJiri Olsa return 0; 4740ea0e355SJiri Olsa } 475e08a4564SJiri Olsa 476e08a4564SJiri Olsa size_t perf_event__fprintf_stat(union perf_event *event, FILE *fp) 477e08a4564SJiri Olsa { 47872932371SJiri Olsa struct perf_record_stat *st = (struct perf_record_stat *)event; 479e08a4564SJiri Olsa size_t ret; 480e08a4564SJiri Olsa 48118a13a60SJiri Olsa ret = fprintf(fp, "\n... id %" PRI_lu64 ", cpu %d, thread %d\n", 482e08a4564SJiri Olsa st->id, st->cpu, st->thread); 48318a13a60SJiri Olsa ret += fprintf(fp, "... value %" PRI_lu64 ", enabled %" PRI_lu64 ", running %" PRI_lu64 "\n", 484e08a4564SJiri Olsa st->val, st->ena, st->run); 485e08a4564SJiri Olsa 486e08a4564SJiri Olsa return ret; 487e08a4564SJiri Olsa } 488e08a4564SJiri Olsa 489e08a4564SJiri Olsa size_t perf_event__fprintf_stat_round(union perf_event *event, FILE *fp) 490e08a4564SJiri Olsa { 49172932371SJiri Olsa struct perf_record_stat_round *rd = (struct perf_record_stat_round *)event; 492e08a4564SJiri Olsa size_t ret; 493e08a4564SJiri Olsa 494782adbe2SJiri Olsa ret = fprintf(fp, "\n... time %" PRI_lu64 ", type %s\n", rd->time, 495e08a4564SJiri Olsa rd->type == PERF_STAT_ROUND_TYPE__FINAL ? "FINAL" : "INTERVAL"); 496e08a4564SJiri Olsa 497e08a4564SJiri Olsa return ret; 498e08a4564SJiri Olsa } 499e08a4564SJiri Olsa 500e08a4564SJiri Olsa size_t perf_event__fprintf_stat_config(union perf_event *event, FILE *fp) 501e08a4564SJiri Olsa { 502e08a4564SJiri Olsa struct perf_stat_config sc; 503e08a4564SJiri Olsa size_t ret; 504e08a4564SJiri Olsa 505e08a4564SJiri Olsa perf_event__read_stat_config(&sc, &event->stat_config); 506e08a4564SJiri Olsa 507e08a4564SJiri Olsa ret = fprintf(fp, "\n"); 508e08a4564SJiri Olsa ret += fprintf(fp, "... aggr_mode %d\n", sc.aggr_mode); 509e08a4564SJiri Olsa ret += fprintf(fp, "... scale %d\n", sc.scale); 510e08a4564SJiri Olsa ret += fprintf(fp, "... interval %u\n", sc.interval); 511e08a4564SJiri Olsa 512e08a4564SJiri Olsa return ret; 513e08a4564SJiri Olsa } 514d09cefd2SJiri Olsa 51532dcd021SJiri Olsa int create_perf_stat_counter(struct evsel *evsel, 516d09cefd2SJiri Olsa struct perf_stat_config *config, 5174804e011SAndi Kleen struct target *target, 5184804e011SAndi Kleen int cpu) 519d09cefd2SJiri Olsa { 5201fc632ceSJiri Olsa struct perf_event_attr *attr = &evsel->core.attr; 52132dcd021SJiri Olsa struct evsel *leader = evsel->leader; 522d09cefd2SJiri Olsa 523d09cefd2SJiri Olsa attr->read_format = PERF_FORMAT_TOTAL_TIME_ENABLED | 524d09cefd2SJiri Olsa PERF_FORMAT_TOTAL_TIME_RUNNING; 525d09cefd2SJiri Olsa 526d09cefd2SJiri Olsa /* 527d09cefd2SJiri Olsa * The event is part of non trivial group, let's enable 528d09cefd2SJiri Olsa * the group read (for leader) and ID retrieval for all 529d09cefd2SJiri Olsa * members. 530d09cefd2SJiri Olsa */ 5315643b1a5SJiri Olsa if (leader->core.nr_members > 1) 532d09cefd2SJiri Olsa attr->read_format |= PERF_FORMAT_ID|PERF_FORMAT_GROUP; 533d09cefd2SJiri Olsa 534fa853c4bSSong Liu attr->inherit = !config->no_inherit && list_empty(&evsel->bpf_counter_list); 535d09cefd2SJiri Olsa 536d09cefd2SJiri Olsa /* 537d09cefd2SJiri Olsa * Some events get initialized with sample_(period/type) set, 538d09cefd2SJiri Olsa * like tracepoints. Clear it up for counting. 539d09cefd2SJiri Olsa */ 540d09cefd2SJiri Olsa attr->sample_period = 0; 541d09cefd2SJiri Olsa 542d09cefd2SJiri Olsa if (config->identifier) 543d09cefd2SJiri Olsa attr->sample_type = PERF_SAMPLE_IDENTIFIER; 544d09cefd2SJiri Olsa 545dd071024SJin Yao if (config->all_user) { 546dd071024SJin Yao attr->exclude_kernel = 1; 547dd071024SJin Yao attr->exclude_user = 0; 548dd071024SJin Yao } 549dd071024SJin Yao 550dd071024SJin Yao if (config->all_kernel) { 551dd071024SJin Yao attr->exclude_kernel = 0; 552dd071024SJin Yao attr->exclude_user = 1; 553dd071024SJin Yao } 554dd071024SJin Yao 555d09cefd2SJiri Olsa /* 556d09cefd2SJiri Olsa * Disabling all counters initially, they will be enabled 557d09cefd2SJiri Olsa * either manually by us or by kernel via enable_on_exec 558d09cefd2SJiri Olsa * set later. 559d09cefd2SJiri Olsa */ 560c754c382SArnaldo Carvalho de Melo if (evsel__is_group_leader(evsel)) { 561d09cefd2SJiri Olsa attr->disabled = 1; 562d09cefd2SJiri Olsa 563d09cefd2SJiri Olsa /* 564d09cefd2SJiri Olsa * In case of initial_delay we enable tracee 565d09cefd2SJiri Olsa * events manually. 566d09cefd2SJiri Olsa */ 567d09cefd2SJiri Olsa if (target__none(target) && !config->initial_delay) 568d09cefd2SJiri Olsa attr->enable_on_exec = 1; 569d09cefd2SJiri Olsa } 570d09cefd2SJiri Olsa 571d09cefd2SJiri Olsa if (target__has_cpu(target) && !target__has_per_thread(target)) 572aa8c406bSArnaldo Carvalho de Melo return evsel__open_per_cpu(evsel, evsel__cpus(evsel), cpu); 573d09cefd2SJiri Olsa 574aa8c406bSArnaldo Carvalho de Melo return evsel__open_per_thread(evsel, evsel->core.threads); 575d09cefd2SJiri Olsa } 576