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__SMI_NUM,
  26        PERF_STAT_EVSEL_ID__APERF,
  27        PERF_STAT_EVSEL_ID__MAX,
  28};
  29
  30struct perf_stat_evsel {
  31        struct stats            res_stats[3];
  32        enum perf_stat_evsel_id id;
  33};
  34
  35enum aggr_mode {
  36        AGGR_NONE,
  37        AGGR_GLOBAL,
  38        AGGR_SOCKET,
  39        AGGR_CORE,
  40        AGGR_THREAD,
  41        AGGR_UNSET,
  42};
  43
  44struct perf_stat_config {
  45        enum aggr_mode  aggr_mode;
  46        bool            scale;
  47        FILE            *output;
  48        unsigned int    interval;
  49};
  50
  51void update_stats(struct stats *stats, u64 val);
  52double avg_stats(struct stats *stats);
  53double stddev_stats(struct stats *stats);
  54double rel_stddev_stats(double stddev, double avg);
  55
  56static inline void init_stats(struct stats *stats)
  57{
  58        stats->n    = 0.0;
  59        stats->mean = 0.0;
  60        stats->M2   = 0.0;
  61        stats->min  = (u64) -1;
  62        stats->max  = 0;
  63}
  64
  65struct perf_evsel;
  66struct perf_evlist;
  67
  68bool __perf_evsel_stat__is(struct perf_evsel *evsel,
  69                           enum perf_stat_evsel_id id);
  70
  71#define perf_stat_evsel__is(evsel, id) \
  72        __perf_evsel_stat__is(evsel, PERF_STAT_EVSEL_ID__ ## id)
  73
  74void perf_stat_evsel_id_init(struct perf_evsel *evsel);
  75
  76extern struct stats walltime_nsecs_stats;
  77
  78typedef void (*print_metric_t)(void *ctx, const char *color, const char *unit,
  79                               const char *fmt, double val);
  80typedef void (*new_line_t )(void *ctx);
  81
  82void perf_stat__init_shadow_stats(void);
  83void perf_stat__reset_shadow_stats(void);
  84void perf_stat__update_shadow_stats(struct perf_evsel *counter, u64 *count,
  85                                    int cpu);
  86struct perf_stat_output_ctx {
  87        void *ctx;
  88        print_metric_t print_metric;
  89        new_line_t new_line;
  90        bool force_header;
  91};
  92
  93void perf_stat__print_shadow_stats(struct perf_evsel *evsel,
  94                                   double avg, int cpu,
  95                                   struct perf_stat_output_ctx *out);
  96void perf_stat__collect_metric_expr(struct perf_evlist *);
  97
  98int perf_evlist__alloc_stats(struct perf_evlist *evlist, bool alloc_raw);
  99void perf_evlist__free_stats(struct perf_evlist *evlist);
 100void perf_evlist__reset_stats(struct perf_evlist *evlist);
 101
 102int perf_stat_process_counter(struct perf_stat_config *config,
 103                              struct perf_evsel *counter);
 104struct perf_tool;
 105union perf_event;
 106struct perf_session;
 107int perf_event__process_stat_event(struct perf_tool *tool,
 108                                   union perf_event *event,
 109                                   struct perf_session *session);
 110
 111size_t perf_event__fprintf_stat(union perf_event *event, FILE *fp);
 112size_t perf_event__fprintf_stat_round(union perf_event *event, FILE *fp);
 113size_t perf_event__fprintf_stat_config(union perf_event *event, FILE *fp);
 114#endif
 115