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_CORE, 52 AGGR_THREAD, 53 AGGR_UNSET, 54 AGGR_NODE, 55 AGGR_MAX 56 }; 57 58 struct rusage_stats { 59 struct stats ru_utime_usec_stat; 60 struct stats ru_stime_usec_stat; 61 }; 62 63 typedef struct aggr_cpu_id (*aggr_get_id_t)(struct perf_stat_config *config, struct perf_cpu cpu); 64 65 struct perf_stat_config { 66 enum aggr_mode aggr_mode; 67 bool scale; 68 bool no_inherit; 69 bool identifier; 70 bool csv_output; 71 bool json_output; 72 bool interval_clear; 73 bool metric_only; 74 bool null_run; 75 bool ru_display; 76 bool big_num; 77 bool no_merge; 78 bool hybrid_merge; 79 bool walltime_run_table; 80 bool all_kernel; 81 bool all_user; 82 bool percore_show_thread; 83 bool summary; 84 bool no_csv_summary; 85 bool metric_no_group; 86 bool metric_no_merge; 87 bool metric_no_threshold; 88 bool stop_read_counter; 89 bool iostat_run; 90 char *user_requested_cpu_list; 91 bool system_wide; 92 FILE *output; 93 unsigned int interval; 94 unsigned int timeout; 95 unsigned int unit_width; 96 unsigned int metric_only_len; 97 int times; 98 int run_count; 99 int print_free_counters_hint; 100 int print_mixed_hw_group_error; 101 const char *csv_sep; 102 struct stats *walltime_nsecs_stats; 103 struct rusage ru_data; 104 struct rusage_stats *ru_stats; 105 struct cpu_aggr_map *aggr_map; 106 aggr_get_id_t aggr_get_id; 107 struct cpu_aggr_map *cpus_aggr_map; 108 u64 *walltime_run; 109 struct rblist metric_events; 110 int ctl_fd; 111 int ctl_fd_ack; 112 bool ctl_fd_close; 113 const char *cgroup_list; 114 unsigned int topdown_level; 115 }; 116 117 void perf_stat__set_big_num(int set); 118 void perf_stat__set_no_csv_summary(int set); 119 120 void update_stats(struct stats *stats, u64 val); 121 double avg_stats(struct stats *stats); 122 double stddev_stats(struct stats *stats); 123 double rel_stddev_stats(double stddev, double avg); 124 125 static inline void init_stats(struct stats *stats) 126 { 127 stats->n = 0.0; 128 stats->mean = 0.0; 129 stats->M2 = 0.0; 130 stats->min = (u64) -1; 131 stats->max = 0; 132 } 133 134 static inline void init_rusage_stats(struct rusage_stats *ru_stats) { 135 init_stats(&ru_stats->ru_utime_usec_stat); 136 init_stats(&ru_stats->ru_stime_usec_stat); 137 } 138 139 static inline void update_rusage_stats(struct rusage_stats *ru_stats, struct rusage* rusage) { 140 const u64 us_to_ns = 1000; 141 const u64 s_to_ns = 1000000000; 142 update_stats(&ru_stats->ru_utime_usec_stat, 143 (rusage->ru_utime.tv_usec * us_to_ns + rusage->ru_utime.tv_sec * s_to_ns)); 144 update_stats(&ru_stats->ru_stime_usec_stat, 145 (rusage->ru_stime.tv_usec * us_to_ns + rusage->ru_stime.tv_sec * s_to_ns)); 146 } 147 148 struct evsel; 149 struct evlist; 150 151 extern struct stats walltime_nsecs_stats; 152 extern struct rusage_stats ru_stats; 153 154 typedef void (*print_metric_t)(struct perf_stat_config *config, 155 void *ctx, const char *color, const char *unit, 156 const char *fmt, double val); 157 typedef void (*new_line_t)(struct perf_stat_config *config, void *ctx); 158 159 void perf_stat__reset_shadow_stats(void); 160 struct perf_stat_output_ctx { 161 void *ctx; 162 print_metric_t print_metric; 163 new_line_t new_line; 164 bool force_header; 165 }; 166 167 void perf_stat__print_shadow_stats(struct perf_stat_config *config, 168 struct evsel *evsel, 169 double avg, int aggr_idx, 170 struct perf_stat_output_ctx *out, 171 struct rblist *metric_events); 172 173 int evlist__alloc_stats(struct perf_stat_config *config, 174 struct evlist *evlist, bool alloc_raw); 175 void evlist__free_stats(struct evlist *evlist); 176 void evlist__reset_stats(struct evlist *evlist); 177 void evlist__reset_prev_raw_counts(struct evlist *evlist); 178 void evlist__copy_prev_raw_counts(struct evlist *evlist); 179 void evlist__save_aggr_prev_raw_counts(struct evlist *evlist); 180 181 int evlist__alloc_aggr_stats(struct evlist *evlist, int nr_aggr); 182 void evlist__reset_aggr_stats(struct evlist *evlist); 183 184 int perf_stat_process_counter(struct perf_stat_config *config, 185 struct evsel *counter); 186 void perf_stat_merge_counters(struct perf_stat_config *config, struct evlist *evlist); 187 void perf_stat_process_percore(struct perf_stat_config *config, struct evlist *evlist); 188 189 struct perf_tool; 190 union perf_event; 191 struct perf_session; 192 struct target; 193 194 int perf_event__process_stat_event(struct perf_session *session, 195 union perf_event *event); 196 197 size_t perf_event__fprintf_stat(union perf_event *event, FILE *fp); 198 size_t perf_event__fprintf_stat_round(union perf_event *event, FILE *fp); 199 size_t perf_event__fprintf_stat_config(union perf_event *event, FILE *fp); 200 201 int create_perf_stat_counter(struct evsel *evsel, 202 struct perf_stat_config *config, 203 struct target *target, 204 int cpu_map_idx); 205 void evlist__print_counters(struct evlist *evlist, struct perf_stat_config *config, 206 struct target *_target, struct timespec *ts, int argc, const char **argv); 207 208 struct metric_expr; 209 double test_generic_metric(struct metric_expr *mexp, int aggr_idx); 210 #endif 211