230 lines · c
1/* SPDX-License-Identifier: GPL-2.0 */2#ifndef __PERF_STATS_H3#define __PERF_STATS_H4 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 13struct perf_cpu_map;14struct perf_stat_config;15struct timespec;16 17struct stats {18 double n, mean, M2;19 u64 max, min;20};21 22/* hold aggregated event info */23struct 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 */35struct 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 46enum 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_MAX58};59 60struct rusage_stats {61 struct stats ru_utime_usec_stat;62 struct stats ru_stime_usec_stat;63};64 65typedef struct aggr_cpu_id (*aggr_get_id_t)(struct perf_stat_config *config, struct perf_cpu cpu);66 67struct 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 int print_mixed_hw_group_error;104 const char *csv_sep;105 struct stats *walltime_nsecs_stats;106 struct rusage ru_data;107 struct rusage_stats *ru_stats;108 struct cpu_aggr_map *aggr_map;109 aggr_get_id_t aggr_get_id;110 struct cpu_aggr_map *cpus_aggr_map;111 u64 *walltime_run;112 struct rblist metric_events;113 int ctl_fd;114 int ctl_fd_ack;115 bool ctl_fd_close;116 const char *cgroup_list;117 unsigned int topdown_level;118};119 120void perf_stat__set_big_num(int set);121void perf_stat__set_no_csv_summary(int set);122 123void update_stats(struct stats *stats, u64 val);124double avg_stats(struct stats *stats);125double stddev_stats(struct stats *stats);126double rel_stddev_stats(double stddev, double avg);127 128static 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 137static 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 142static 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 151struct evsel;152struct evlist;153 154extern struct stats walltime_nsecs_stats;155extern struct rusage_stats ru_stats;156 157typedef void (*print_metric_t)(struct perf_stat_config *config,158 void *ctx, const char *color, const char *unit,159 const char *fmt, double val);160typedef void (*new_line_t)(struct perf_stat_config *config, void *ctx);161 162/* Used to print the display name of the Default metricgroup for now. */163typedef void (*print_metricgroup_header_t)(struct perf_stat_config *config,164 void *ctx, const char *metricgroup_name);165 166void perf_stat__reset_shadow_stats(void);167struct perf_stat_output_ctx {168 void *ctx;169 print_metric_t print_metric;170 new_line_t new_line;171 print_metricgroup_header_t print_metricgroup_header;172 bool force_header;173};174 175void perf_stat__print_shadow_stats(struct perf_stat_config *config,176 struct evsel *evsel,177 double avg, int aggr_idx,178 struct perf_stat_output_ctx *out,179 struct rblist *metric_events);180bool perf_stat__skip_metric_event(struct evsel *evsel,181 struct rblist *metric_events,182 u64 ena, u64 run);183void *perf_stat__print_shadow_stats_metricgroup(struct perf_stat_config *config,184 struct evsel *evsel,185 int aggr_idx,186 int *num,187 void *from,188 struct perf_stat_output_ctx *out,189 struct rblist *metric_events);190 191int evlist__alloc_stats(struct perf_stat_config *config,192 struct evlist *evlist, bool alloc_raw);193void evlist__free_stats(struct evlist *evlist);194void evlist__reset_stats(struct evlist *evlist);195void evlist__reset_prev_raw_counts(struct evlist *evlist);196void evlist__copy_prev_raw_counts(struct evlist *evlist);197void evlist__save_aggr_prev_raw_counts(struct evlist *evlist);198 199int evlist__alloc_aggr_stats(struct evlist *evlist, int nr_aggr);200void evlist__reset_aggr_stats(struct evlist *evlist);201void evlist__copy_res_stats(struct perf_stat_config *config, struct evlist *evlist);202 203int perf_stat_process_counter(struct perf_stat_config *config,204 struct evsel *counter);205void perf_stat_merge_counters(struct perf_stat_config *config, struct evlist *evlist);206void perf_stat_process_percore(struct perf_stat_config *config, struct evlist *evlist);207 208struct perf_tool;209union perf_event;210struct perf_session;211struct target;212 213int perf_event__process_stat_event(struct perf_session *session,214 union perf_event *event);215 216size_t perf_event__fprintf_stat(union perf_event *event, FILE *fp);217size_t perf_event__fprintf_stat_round(union perf_event *event, FILE *fp);218size_t perf_event__fprintf_stat_config(union perf_event *event, FILE *fp);219 220int create_perf_stat_counter(struct evsel *evsel,221 struct perf_stat_config *config,222 struct target *target,223 int cpu_map_idx);224void evlist__print_counters(struct evlist *evlist, struct perf_stat_config *config,225 struct target *_target, struct timespec *ts, int argc, const char **argv);226 227struct metric_expr;228double test_generic_metric(struct metric_expr *mexp, int aggr_idx);229#endif230