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
   8 struct stats
   9 {
  10         double n, mean, M2;
  11         u64 max, min;
  12 };
  13
  14 enum 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
  30 struct perf_stat_evsel {
  31         struct stats             res_stats[3];
  32         enum perf_stat_evsel_id  id;
  33         u64                     *group_data;
  34 };
  35
  36 enum aggr_mode {
  37         AGGR_NONE,
  38         AGGR_GLOBAL,
  39         AGGR_SOCKET,
  40         AGGR_CORE,
  41         AGGR_THREAD,
  42         AGGR_UNSET,
  43 };
  44
  45 struct perf_stat_config {
  46         enum aggr_mode  aggr_mode;
  47         bool            scale;
  48         FILE            *output;
  49         unsigned int    interval;
  50 };
  51
  52 void update_stats(struct stats *stats, u64 val);
  53 double avg_stats(struct stats *stats);
  54 double stddev_stats(struct stats *stats);
  55 double rel_stddev_stats(double stddev, double avg);
  56
  57 static inline void init_stats(struct stats *stats)
  58 {
  59         stats->n    = 0.0;
  60         stats->mean = 0.0;
  61         stats->M2   = 0.0;
  62         stats->min  = (u64) -1;
  63         stats->max  = 0;
  64 }
  65
  66 struct perf_evsel;
  67 struct perf_evlist;
  68
  69 bool __perf_evsel_stat__is(struct perf_evsel *evsel,
  70                            enum perf_stat_evsel_id id);
  71
  72 #define perf_stat_evsel__is(evsel, id) \
  73         __perf_evsel_stat__is(evsel, PERF_STAT_EVSEL_ID__ ## id)
  74
  75 void perf_stat_evsel_id_init(struct perf_evsel *evsel);
  76
  77 extern struct stats walltime_nsecs_stats;
  78
  79 typedef void (*print_metric_t)(void *ctx, const char *color, const char *unit,
  80                                const char *fmt, double val);
  81 typedef void (*new_line_t )(void *ctx);
  82
  83 void perf_stat__init_shadow_stats(void);
  84 void perf_stat__reset_shadow_stats(void);
  85 void perf_stat__update_shadow_stats(struct perf_evsel *counter, u64 *count,
  86                                     int cpu);
  87 struct perf_stat_output_ctx {
  88         void *ctx;
  89         print_metric_t print_metric;
  90         new_line_t new_line;
  91         bool force_header;
  92 };
  93
  94 void perf_stat__print_shadow_stats(struct perf_evsel *evsel,
  95                                    double avg, int cpu,
  96                                    struct perf_stat_output_ctx *out);
  97 void perf_stat__collect_metric_expr(struct perf_evlist *);
  98
  99 int perf_evlist__alloc_stats(struct perf_evlist *evlist, bool alloc_raw);
 100 void perf_evlist__free_stats(struct perf_evlist *evlist);
 101 void perf_evlist__reset_stats(struct perf_evlist *evlist);
 102
 103 int perf_stat_process_counter(struct perf_stat_config *config,
 104                               struct perf_evsel *counter);
 105 struct perf_tool;
 106 union perf_event;
 107 struct perf_session;
 108 int perf_event__process_stat_event(struct perf_tool *tool,
 109                                    union perf_event *event,
 110                                    struct perf_session *session);
 111
 112 size_t perf_event__fprintf_stat(union perf_event *event, FILE *fp);
 113 size_t perf_event__fprintf_stat_round(union perf_event *event, FILE *fp);
 114 size_t perf_event__fprintf_stat_config(union perf_event *event, FILE *fp);
 115 #endif