tools/perf/util/stat.h

   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 "xyarray.h"
   8 #include "rblist.h"
   9
  10 struct stats
  11 {
  12         double n, mean, M2;
  13         u64 max, min;
  14 };
  15
  16 enum perf_stat_evsel_id {
  17         PERF_STAT_EVSEL_ID__NONE = 0,
  18         PERF_STAT_EVSEL_ID__CYCLES_IN_TX,
  19         PERF_STAT_EVSEL_ID__TRANSACTION_START,
  20         PERF_STAT_EVSEL_ID__ELISION_START,
  21         PERF_STAT_EVSEL_ID__CYCLES_IN_TX_CP,
  22         PERF_STAT_EVSEL_ID__TOPDOWN_TOTAL_SLOTS,
  23         PERF_STAT_EVSEL_ID__TOPDOWN_SLOTS_ISSUED,
  24         PERF_STAT_EVSEL_ID__TOPDOWN_SLOTS_RETIRED,
  25         PERF_STAT_EVSEL_ID__TOPDOWN_FETCH_BUBBLES,
  26         PERF_STAT_EVSEL_ID__TOPDOWN_RECOVERY_BUBBLES,
  27         PERF_STAT_EVSEL_ID__SMI_NUM,
  28         PERF_STAT_EVSEL_ID__APERF,
  29         PERF_STAT_EVSEL_ID__MAX,
  30 };
  31
  32 struct perf_stat_evsel {
  33         struct stats             res_stats[3];
  34         enum perf_stat_evsel_id  id;
  35         u64                     *group_data;
  36 };
  37
  38 enum aggr_mode {
  39         AGGR_NONE,
  40         AGGR_GLOBAL,
  41         AGGR_SOCKET,
  42         AGGR_CORE,
  43         AGGR_THREAD,
  44         AGGR_UNSET,
  45 };
  46
  47 enum {
  48         CTX_BIT_USER    = 1 << 0,
  49         CTX_BIT_KERNEL  = 1 << 1,
  50         CTX_BIT_HV      = 1 << 2,
  51         CTX_BIT_HOST    = 1 << 3,
  52         CTX_BIT_IDLE    = 1 << 4,
  53         CTX_BIT_MAX     = 1 << 5,
  54 };
  55
  56 #define NUM_CTX CTX_BIT_MAX
  57
  58 enum stat_type {
  59         STAT_NONE = 0,
  60         STAT_NSECS,
  61         STAT_CYCLES,
  62         STAT_STALLED_CYCLES_FRONT,
  63         STAT_STALLED_CYCLES_BACK,
  64         STAT_BRANCHES,
  65         STAT_CACHEREFS,
  66         STAT_L1_DCACHE,
  67         STAT_L1_ICACHE,
  68         STAT_LL_CACHE,
  69         STAT_ITLB_CACHE,
  70         STAT_DTLB_CACHE,
  71         STAT_CYCLES_IN_TX,
  72         STAT_TRANSACTION,
  73         STAT_ELISION,
  74         STAT_TOPDOWN_TOTAL_SLOTS,
  75         STAT_TOPDOWN_SLOTS_ISSUED,
  76         STAT_TOPDOWN_SLOTS_RETIRED,
  77         STAT_TOPDOWN_FETCH_BUBBLES,
  78         STAT_TOPDOWN_RECOVERY_BUBBLES,
  79         STAT_SMI_NUM,
  80         STAT_APERF,
  81         STAT_MAX
  82 };
  83
  84 struct runtime_stat {
  85         struct rblist value_list;
  86 };
  87
  88 struct perf_stat_config {
  89         enum aggr_mode  aggr_mode;
  90         bool            scale;
  91         FILE            *output;
  92         unsigned int    interval;
  93         struct runtime_stat *stats;
  94         int             stats_num;
  95 };
  96
  97 void update_stats(struct stats *stats, u64 val);
  98 double avg_stats(struct stats *stats);
  99 double stddev_stats(struct stats *stats);
 100 double rel_stddev_stats(double stddev, double avg);
 101
 102 static inline void init_stats(struct stats *stats)
 103 {
 104         stats->n    = 0.0;
 105         stats->mean = 0.0;
 106         stats->M2   = 0.0;
 107         stats->min  = (u64) -1;
 108         stats->max  = 0;
 109 }
 110
 111 struct perf_evsel;
 112 struct perf_evlist;
 113
 114 struct perf_aggr_thread_value {
 115         struct perf_evsel *counter;
 116         int id;
 117         double uval;
 118         u64 val;
 119         u64 run;
 120         u64 ena;
 121 };
 122
 123 bool __perf_evsel_stat__is(struct perf_evsel *evsel,
 124                            enum perf_stat_evsel_id id);
 125
 126 #define perf_stat_evsel__is(evsel, id) \
 127         __perf_evsel_stat__is(evsel, PERF_STAT_EVSEL_ID__ ## id)
 128
 129 void perf_stat_evsel_id_init(struct perf_evsel *evsel);
 130
 131 extern struct runtime_stat rt_stat;
 132 extern struct stats walltime_nsecs_stats;
 133
 134 typedef void (*print_metric_t)(void *ctx, const char *color, const char *unit,
 135                                const char *fmt, double val);
 136 typedef void (*new_line_t )(void *ctx);
 137
 138 void runtime_stat__init(struct runtime_stat *st);
 139 void runtime_stat__exit(struct runtime_stat *st);
 140 void perf_stat__init_shadow_stats(void);
 141 void perf_stat__reset_shadow_stats(void);
 142 void perf_stat__reset_shadow_per_stat(struct runtime_stat *st);
 143 void perf_stat__update_shadow_stats(struct perf_evsel *counter, u64 count,
 144                                     int cpu, struct runtime_stat *st);
 145 struct perf_stat_output_ctx {
 146         void *ctx;
 147         print_metric_t print_metric;
 148         new_line_t new_line;
 149         bool force_header;
 150 };
 151
 152 void perf_stat__print_shadow_stats(struct perf_evsel *evsel,
 153                                    double avg, int cpu,
 154                                    struct perf_stat_output_ctx *out,
 155                                    struct rblist *metric_events,
 156                                    struct runtime_stat *st);
 157 void perf_stat__collect_metric_expr(struct perf_evlist *);
 158
 159 int perf_evlist__alloc_stats(struct perf_evlist *evlist, bool alloc_raw);
 160 void perf_evlist__free_stats(struct perf_evlist *evlist);
 161 void perf_evlist__reset_stats(struct perf_evlist *evlist);
 162
 163 int perf_stat_process_counter(struct perf_stat_config *config,
 164                               struct perf_evsel *counter);
 165 struct perf_tool;
 166 union perf_event;
 167 struct perf_session;
 168 int perf_event__process_stat_event(struct perf_tool *tool,
 169                                    union perf_event *event,
 170                                    struct perf_session *session);
 171
 172 size_t perf_event__fprintf_stat(union perf_event *event, FILE *fp);
 173 size_t perf_event__fprintf_stat_round(union perf_event *event, FILE *fp);
 174 size_t perf_event__fprintf_stat_config(union perf_event *event, FILE *fp);
 175 #endif