linux/tools/perf/util/stat.h
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   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef __PERF_STATS_H
   3#define __PERF_STATS_H
   4
   5#include <linux/types.h>
   6#include <stdio.h>
   7#include <sys/types.h>
   8#include <sys/resource.h>
   9#include "rblist.h"
  10
  11struct perf_cpu_map;
  12struct perf_stat_config;
  13struct timespec;
  14
  15struct stats {
  16        double n, mean, M2;
  17        u64 max, min;
  18};
  19
  20enum perf_stat_evsel_id {
  21        PERF_STAT_EVSEL_ID__NONE = 0,
  22        PERF_STAT_EVSEL_ID__CYCLES_IN_TX,
  23        PERF_STAT_EVSEL_ID__TRANSACTION_START,
  24        PERF_STAT_EVSEL_ID__ELISION_START,
  25        PERF_STAT_EVSEL_ID__CYCLES_IN_TX_CP,
  26        PERF_STAT_EVSEL_ID__TOPDOWN_TOTAL_SLOTS,
  27        PERF_STAT_EVSEL_ID__TOPDOWN_SLOTS_ISSUED,
  28        PERF_STAT_EVSEL_ID__TOPDOWN_SLOTS_RETIRED,
  29        PERF_STAT_EVSEL_ID__TOPDOWN_FETCH_BUBBLES,
  30        PERF_STAT_EVSEL_ID__TOPDOWN_RECOVERY_BUBBLES,
  31        PERF_STAT_EVSEL_ID__SMI_NUM,
  32        PERF_STAT_EVSEL_ID__APERF,
  33        PERF_STAT_EVSEL_ID__MAX,
  34};
  35
  36struct perf_stat_evsel {
  37        struct stats             res_stats[3];
  38        enum perf_stat_evsel_id  id;
  39        u64                     *group_data;
  40};
  41
  42enum aggr_mode {
  43        AGGR_NONE,
  44        AGGR_GLOBAL,
  45        AGGR_SOCKET,
  46        AGGR_DIE,
  47        AGGR_CORE,
  48        AGGR_THREAD,
  49        AGGR_UNSET,
  50};
  51
  52enum {
  53        CTX_BIT_USER    = 1 << 0,
  54        CTX_BIT_KERNEL  = 1 << 1,
  55        CTX_BIT_HV      = 1 << 2,
  56        CTX_BIT_HOST    = 1 << 3,
  57        CTX_BIT_IDLE    = 1 << 4,
  58        CTX_BIT_MAX     = 1 << 5,
  59};
  60
  61#define NUM_CTX CTX_BIT_MAX
  62
  63enum stat_type {
  64        STAT_NONE = 0,
  65        STAT_NSECS,
  66        STAT_CYCLES,
  67        STAT_STALLED_CYCLES_FRONT,
  68        STAT_STALLED_CYCLES_BACK,
  69        STAT_BRANCHES,
  70        STAT_CACHEREFS,
  71        STAT_L1_DCACHE,
  72        STAT_L1_ICACHE,
  73        STAT_LL_CACHE,
  74        STAT_ITLB_CACHE,
  75        STAT_DTLB_CACHE,
  76        STAT_CYCLES_IN_TX,
  77        STAT_TRANSACTION,
  78        STAT_ELISION,
  79        STAT_TOPDOWN_TOTAL_SLOTS,
  80        STAT_TOPDOWN_SLOTS_ISSUED,
  81        STAT_TOPDOWN_SLOTS_RETIRED,
  82        STAT_TOPDOWN_FETCH_BUBBLES,
  83        STAT_TOPDOWN_RECOVERY_BUBBLES,
  84        STAT_SMI_NUM,
  85        STAT_APERF,
  86        STAT_MAX
  87};
  88
  89struct runtime_stat {
  90        struct rblist value_list;
  91};
  92
  93typedef int (*aggr_get_id_t)(struct perf_stat_config *config,
  94                             struct perf_cpu_map *m, int cpu);
  95
  96struct perf_stat_config {
  97        enum aggr_mode           aggr_mode;
  98        bool                     scale;
  99        bool                     no_inherit;
 100        bool                     identifier;
 101        bool                     csv_output;
 102        bool                     interval_clear;
 103        bool                     metric_only;
 104        bool                     null_run;
 105        bool                     ru_display;
 106        bool                     big_num;
 107        bool                     no_merge;
 108        bool                     walltime_run_table;
 109        FILE                    *output;
 110        unsigned int             interval;
 111        unsigned int             timeout;
 112        unsigned int             initial_delay;
 113        unsigned int             unit_width;
 114        unsigned int             metric_only_len;
 115        int                      times;
 116        int                      run_count;
 117        int                      print_free_counters_hint;
 118        int                      print_mixed_hw_group_error;
 119        struct runtime_stat     *stats;
 120        int                      stats_num;
 121        const char              *csv_sep;
 122        struct stats            *walltime_nsecs_stats;
 123        struct rusage            ru_data;
 124        struct perf_cpu_map             *aggr_map;
 125        aggr_get_id_t            aggr_get_id;
 126        struct perf_cpu_map             *cpus_aggr_map;
 127        u64                     *walltime_run;
 128        struct rblist            metric_events;
 129};
 130
 131void update_stats(struct stats *stats, u64 val);
 132double avg_stats(struct stats *stats);
 133double stddev_stats(struct stats *stats);
 134double rel_stddev_stats(double stddev, double avg);
 135
 136static inline void init_stats(struct stats *stats)
 137{
 138        stats->n    = 0.0;
 139        stats->mean = 0.0;
 140        stats->M2   = 0.0;
 141        stats->min  = (u64) -1;
 142        stats->max  = 0;
 143}
 144
 145struct evsel;
 146struct evlist;
 147
 148struct perf_aggr_thread_value {
 149        struct evsel *counter;
 150        int id;
 151        double uval;
 152        u64 val;
 153        u64 run;
 154        u64 ena;
 155};
 156
 157bool __perf_evsel_stat__is(struct evsel *evsel,
 158                           enum perf_stat_evsel_id id);
 159
 160#define perf_stat_evsel__is(evsel, id) \
 161        __perf_evsel_stat__is(evsel, PERF_STAT_EVSEL_ID__ ## id)
 162
 163extern struct runtime_stat rt_stat;
 164extern struct stats walltime_nsecs_stats;
 165
 166typedef void (*print_metric_t)(struct perf_stat_config *config,
 167                               void *ctx, const char *color, const char *unit,
 168                               const char *fmt, double val);
 169typedef void (*new_line_t)(struct perf_stat_config *config, void *ctx);
 170
 171void runtime_stat__init(struct runtime_stat *st);
 172void runtime_stat__exit(struct runtime_stat *st);
 173void perf_stat__init_shadow_stats(void);
 174void perf_stat__reset_shadow_stats(void);
 175void perf_stat__reset_shadow_per_stat(struct runtime_stat *st);
 176void perf_stat__update_shadow_stats(struct evsel *counter, u64 count,
 177                                    int cpu, struct runtime_stat *st);
 178struct perf_stat_output_ctx {
 179        void *ctx;
 180        print_metric_t print_metric;
 181        new_line_t new_line;
 182        bool force_header;
 183};
 184
 185void perf_stat__print_shadow_stats(struct perf_stat_config *config,
 186                                   struct evsel *evsel,
 187                                   double avg, int cpu,
 188                                   struct perf_stat_output_ctx *out,
 189                                   struct rblist *metric_events,
 190                                   struct runtime_stat *st);
 191void perf_stat__collect_metric_expr(struct evlist *);
 192
 193int perf_evlist__alloc_stats(struct evlist *evlist, bool alloc_raw);
 194void perf_evlist__free_stats(struct evlist *evlist);
 195void perf_evlist__reset_stats(struct evlist *evlist);
 196void perf_evlist__reset_prev_raw_counts(struct evlist *evlist);
 197
 198int perf_stat_process_counter(struct perf_stat_config *config,
 199                              struct evsel *counter);
 200struct perf_tool;
 201union perf_event;
 202struct perf_session;
 203struct target;
 204
 205int perf_event__process_stat_event(struct perf_session *session,
 206                                   union perf_event *event);
 207
 208size_t perf_event__fprintf_stat(union perf_event *event, FILE *fp);
 209size_t perf_event__fprintf_stat_round(union perf_event *event, FILE *fp);
 210size_t perf_event__fprintf_stat_config(union perf_event *event, FILE *fp);
 211
 212int create_perf_stat_counter(struct evsel *evsel,
 213                             struct perf_stat_config *config,
 214                             struct target *target);
 215void
 216perf_evlist__print_counters(struct evlist *evlist,
 217                            struct perf_stat_config *config,
 218                            struct target *_target,
 219                            struct timespec *ts,
 220                            int argc, const char **argv);
 221#endif
 222