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 <sys/types.h>
   8 #include <sys/resource.h>
   9 #include "cpumap.h"
  10 #include "rblist.h"
  11 #include "counts.h"
  12
  13 struct perf_cpu_map;
  14 struct perf_stat_config;
  15 struct timespec;
  16
  17 struct stats {
  18         double n, mean, M2;
  19         u64 max, min;
  20 };
  21
  22 /* hold aggregated event info */
  23 struct perf_stat_aggr {
  24         /* aggregated values */
  25         struct perf_counts_values       counts;
  26         /* number of entries (CPUs) aggregated */
  27         int                             nr;
  28         /* whether any entry has failed to read/process event */
  29         bool                            failed;
  30         /* to mark this data is processed already */
  31         bool                            used;
  32 };
  33
  34 /* per-evsel event stats */
  35 struct perf_stat_evsel {
  36         /* used for repeated runs */
  37         struct stats             res_stats;
  38         /* number of allocated 'aggr' */
  39         int                      nr_aggr;
  40         /* aggregated event values */
  41         struct perf_stat_aggr   *aggr;
  42         /* used for group read */
  43         u64                     *group_data;
  44 };
  45
  46 enum aggr_mode {
  47         AGGR_NONE,
  48         AGGR_GLOBAL,
  49         AGGR_SOCKET,
  50         AGGR_DIE,
  51         AGGR_CLUSTER,
  52         AGGR_CACHE,
  53         AGGR_CORE,
  54         AGGR_THREAD,
  55         AGGR_UNSET,
  56         AGGR_NODE,
  57         AGGR_MAX
  58 };
  59
  60 struct rusage_stats {
  61         struct stats ru_utime_usec_stat;
  62         struct stats ru_stime_usec_stat;
  63 };
  64
  65 typedef struct aggr_cpu_id (*aggr_get_id_t)(struct perf_stat_config *config, struct perf_cpu cpu);
  66
  67 struct perf_stat_config {
  68         enum aggr_mode           aggr_mode;
  69         u32                      aggr_level;
  70         bool                     scale;
  71         bool                     no_inherit;
  72         bool                     identifier;
  73         bool                     csv_output;
  74         bool                     json_output;
  75         bool                     interval_clear;
  76         bool                     metric_only;
  77         bool                     null_run;
  78         bool                     ru_display;
  79         bool                     big_num;
  80         bool                     hybrid_merge;
  81         bool                     walltime_run_table;
  82         bool                     all_kernel;
  83         bool                     all_user;
  84         bool                     percore_show_thread;
  85         bool                     summary;
  86         bool                     no_csv_summary;
  87         bool                     metric_no_group;
  88         bool                     metric_no_merge;
  89         bool                     metric_no_threshold;
  90         bool                     hardware_aware_grouping;
  91         bool                     stop_read_counter;
  92         bool                     iostat_run;
  93         char                     *user_requested_cpu_list;
  94         bool                     system_wide;
  95         FILE                    *output;
  96         unsigned int             interval;
  97         unsigned int             timeout;
  98         unsigned int             unit_width;
  99         unsigned int             metric_only_len;
 100         int                      times;
 101         int                      run_count;
 102         int                      print_free_counters_hint;
 103         const char              *csv_sep;
 104         struct stats            *walltime_nsecs_stats;
 105         struct rusage            ru_data;
 106         struct rusage_stats              *ru_stats;
 107         struct cpu_aggr_map     *aggr_map;
 108         aggr_get_id_t            aggr_get_id;
 109         struct cpu_aggr_map     *cpus_aggr_map;
 110         u64                     *walltime_run;
 111         struct rblist            metric_events;
 112         int                      ctl_fd;
 113         int                      ctl_fd_ack;
 114         bool                     ctl_fd_close;
 115         const char              *cgroup_list;
 116         unsigned int            topdown_level;
 117 };
 118
 119 extern struct perf_stat_config stat_config;
 120
 121 void perf_stat__set_big_num(int set);
 122
 123 void update_stats(struct stats *stats, u64 val);
 124 double avg_stats(struct stats *stats);
 125 double stddev_stats(struct stats *stats);
 126 double rel_stddev_stats(double stddev, double avg);
 127
 128 static inline void init_stats(struct stats *stats)
 129 {
 130         stats->n    = 0.0;
 131         stats->mean = 0.0;
 132         stats->M2   = 0.0;
 133         stats->min  = (u64) -1;
 134         stats->max  = 0;
 135 }
 136
 137 static inline void init_rusage_stats(struct rusage_stats *ru_stats) {
 138         init_stats(&ru_stats->ru_utime_usec_stat);
 139         init_stats(&ru_stats->ru_stime_usec_stat);
 140 }
 141
 142 static inline void update_rusage_stats(struct rusage_stats *ru_stats, struct rusage* rusage) {
 143         const u64 us_to_ns = 1000;
 144         const u64 s_to_ns = 1000000000;
 145         update_stats(&ru_stats->ru_utime_usec_stat,
 146                      (rusage->ru_utime.tv_usec * us_to_ns + rusage->ru_utime.tv_sec * s_to_ns));
 147         update_stats(&ru_stats->ru_stime_usec_stat,
 148                      (rusage->ru_stime.tv_usec * us_to_ns + rusage->ru_stime.tv_sec * s_to_ns));
 149 }
 150
 151 struct evsel;
 152 struct evlist;
 153
 154 extern struct stats walltime_nsecs_stats;
 155 extern struct rusage_stats ru_stats;
 156
 157 enum metric_threshold_classify {
 158         METRIC_THRESHOLD_UNKNOWN,
 159         METRIC_THRESHOLD_BAD,
 160         METRIC_THRESHOLD_NEARLY_BAD,
 161         METRIC_THRESHOLD_LESS_GOOD,
 162         METRIC_THRESHOLD_GOOD,
 163 };
 164 const char *metric_threshold_classify__color(enum metric_threshold_classify thresh);
 165
 166 typedef void (*print_metric_t)(struct perf_stat_config *config,
 167                                void *ctx,
 168                                enum metric_threshold_classify thresh,
 169                                const char *fmt,
 170                                const char *unit,
 171                                double val);
 172 typedef void (*new_line_t)(struct perf_stat_config *config, void *ctx);
 173
 174 /* Used to print the display name of the Default metricgroup for now. */
 175 typedef void (*print_metricgroup_header_t)(struct perf_stat_config *config,
 176                                            void *ctx, const char *metricgroup_name);
 177
 178 void perf_stat__reset_shadow_stats(void);
 179 struct perf_stat_output_ctx {
 180         void *ctx;
 181         print_metric_t print_metric;
 182         new_line_t new_line;
 183         print_metricgroup_header_t print_metricgroup_header;
 184         bool force_header;
 185 };
 186
 187 void perf_stat__print_shadow_stats(struct perf_stat_config *config,
 188                                    struct evsel *evsel,
 189                                    double avg, int aggr_idx,
 190                                    struct perf_stat_output_ctx *out,
 191                                    struct rblist *metric_events);
 192 bool perf_stat__skip_metric_event(struct evsel *evsel,
 193                                   struct rblist *metric_events,
 194                                   u64 ena, u64 run);
 195 void *perf_stat__print_shadow_stats_metricgroup(struct perf_stat_config *config,
 196                                                 struct evsel *evsel,
 197                                                 int aggr_idx,
 198                                                 int *num,
 199                                                 void *from,
 200                                                 struct perf_stat_output_ctx *out,
 201                                                 struct rblist *metric_events);
 202
 203 int evlist__alloc_stats(struct perf_stat_config *config,
 204                         struct evlist *evlist, bool alloc_raw);
 205 void evlist__free_stats(struct evlist *evlist);
 206 void evlist__reset_stats(struct evlist *evlist);
 207 void evlist__reset_prev_raw_counts(struct evlist *evlist);
 208 void evlist__copy_prev_raw_counts(struct evlist *evlist);
 209 void evlist__save_aggr_prev_raw_counts(struct evlist *evlist);
 210
 211 int evlist__alloc_aggr_stats(struct evlist *evlist, int nr_aggr);
 212 void evlist__reset_aggr_stats(struct evlist *evlist);
 213 void evlist__copy_res_stats(struct perf_stat_config *config, struct evlist *evlist);
 214
 215 int perf_stat_process_counter(struct perf_stat_config *config,
 216                               struct evsel *counter);
 217 void perf_stat_merge_counters(struct perf_stat_config *config, struct evlist *evlist);
 218 void perf_stat_process_percore(struct perf_stat_config *config, struct evlist *evlist);
 219
 220 struct perf_tool;
 221 union perf_event;
 222 struct perf_session;
 223 struct target;
 224
 225 int perf_event__process_stat_event(struct perf_session *session,
 226                                    union perf_event *event);
 227
 228 size_t perf_event__fprintf_stat(union perf_event *event, FILE *fp);
 229 size_t perf_event__fprintf_stat_round(union perf_event *event, FILE *fp);
 230 size_t perf_event__fprintf_stat_config(union perf_event *event, FILE *fp);
 231
 232 int create_perf_stat_counter(struct evsel *evsel,
 233                              struct perf_stat_config *config,
 234                              struct target *target,
 235                              int cpu_map_idx);
 236 void evlist__print_counters(struct evlist *evlist, struct perf_stat_config *config,
 237                             struct target *_target, struct timespec *ts, int argc, const char **argv);
 238
 239 struct metric_expr;
 240 double test_generic_metric(struct metric_expr *mexp, int aggr_idx);
 241 #endif