LXR linux/tools/perf/util/stat.h

   1#ifndef __PERF_STATS_H
   2#define __PERF_STATS_H
   3
   4#include <linux/types.h>
   5#include <stdio.h>
   6#include "xyarray.h"
   7
   8struct stats
   9{
  10        double n, mean, M2;
  11        u64 max, min;
  12};
  13
  14enum perf_stat_evsel_id {
  15        PERF_STAT_EVSEL_ID__NONE = 0,
  16        PERF_STAT_EVSEL_ID__CYCLES_IN_TX,
  17        PERF_STAT_EVSEL_ID__TRANSACTION_START,
  18        PERF_STAT_EVSEL_ID__ELISION_START,
  19        PERF_STAT_EVSEL_ID__CYCLES_IN_TX_CP,
  20        PERF_STAT_EVSEL_ID__TOPDOWN_TOTAL_SLOTS,
  21        PERF_STAT_EVSEL_ID__TOPDOWN_SLOTS_ISSUED,
  22        PERF_STAT_EVSEL_ID__TOPDOWN_SLOTS_RETIRED,
  23        PERF_STAT_EVSEL_ID__TOPDOWN_FETCH_BUBBLES,
  24        PERF_STAT_EVSEL_ID__TOPDOWN_RECOVERY_BUBBLES,
  25        PERF_STAT_EVSEL_ID__MAX,
  26};
  27
  28struct perf_stat_evsel {
  29        struct stats            res_stats[3];
  30        enum perf_stat_evsel_id id;
  31};
  32
  33enum aggr_mode {
  34        AGGR_NONE,
  35        AGGR_GLOBAL,
  36        AGGR_SOCKET,
  37        AGGR_CORE,
  38        AGGR_THREAD,
  39        AGGR_UNSET,
  40};
  41
  42struct perf_stat_config {
  43        enum aggr_mode  aggr_mode;
  44        bool            scale;
  45        FILE            *output;
  46        unsigned int    interval;
  47};
  48
  49void update_stats(struct stats *stats, u64 val);
  50double avg_stats(struct stats *stats);
  51double stddev_stats(struct stats *stats);
  52double rel_stddev_stats(double stddev, double avg);
  53
  54static inline void init_stats(struct stats *stats)
  55{
  56        stats->n    = 0.0;
  57        stats->mean = 0.0;
  58        stats->M2   = 0.0;
  59        stats->min  = (u64) -1;
  60        stats->max  = 0;
  61}
  62
  63struct perf_evsel;
  64struct perf_evlist;
  65
  66bool __perf_evsel_stat__is(struct perf_evsel *evsel,
  67                           enum perf_stat_evsel_id id);
  68
  69#define perf_stat_evsel__is(evsel, id) \
  70        __perf_evsel_stat__is(evsel, PERF_STAT_EVSEL_ID__ ## id)
  71
  72void perf_stat_evsel_id_init(struct perf_evsel *evsel);
  73
  74extern struct stats walltime_nsecs_stats;
  75
  76typedef void (*print_metric_t)(void *ctx, const char *color, const char *unit,
  77                               const char *fmt, double val);
  78typedef void (*new_line_t )(void *ctx);
  79
  80void perf_stat__init_shadow_stats(void);
  81void perf_stat__reset_shadow_stats(void);
  82void perf_stat__update_shadow_stats(struct perf_evsel *counter, u64 *count,
  83                                    int cpu);
  84struct perf_stat_output_ctx {
  85        void *ctx;
  86        print_metric_t print_metric;
  87        new_line_t new_line;
  88};
  89
  90void perf_stat__print_shadow_stats(struct perf_evsel *evsel,
  91                                   double avg, int cpu,
  92                                   struct perf_stat_output_ctx *out);
  93
  94int perf_evlist__alloc_stats(struct perf_evlist *evlist, bool alloc_raw);
  95void perf_evlist__free_stats(struct perf_evlist *evlist);
  96void perf_evlist__reset_stats(struct perf_evlist *evlist);
  97
  98int perf_stat_process_counter(struct perf_stat_config *config,
  99                              struct perf_evsel *counter);
 100struct perf_tool;
 101union perf_event;
 102struct perf_session;
 103int perf_event__process_stat_event(struct perf_tool *tool,
 104                                   union perf_event *event,
 105                                   struct perf_session *session);
 106
 107size_t perf_event__fprintf_stat(union perf_event *event, FILE *fp);
 108size_t perf_event__fprintf_stat_round(union perf_event *event, FILE *fp);
 109size_t perf_event__fprintf_stat_config(union perf_event *event, FILE *fp);
 110#endif
 111