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 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 }; 119 120 void perf_stat__set_big_num(int set); 121 void perf_stat__set_no_csv_summary(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 typedef void (*print_metric_t)(struct perf_stat_config *config, 158 void *ctx, const char *color, const char *unit, 159 const char *fmt, double val); 160 typedef 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. */ 163 typedef void (*print_metricgroup_header_t)(struct perf_stat_config *config, 164 void *ctx, const char *metricgroup_name); 165 166 void perf_stat__reset_shadow_stats(void); 167 struct 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 }; 174 175 void 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); 180 bool perf_stat__skip_metric_event(struct evsel *evsel, 181 struct rblist *metric_events, 182 u64 ena, u64 run); 183 void *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); 190 191 int evlist__alloc_stats(struct perf_stat_config *config, 192 struct evlist *evlist, bool alloc_raw); 193 void evlist__free_stats(struct evlist *evlist); 194 void evlist__reset_stats(struct evlist *evlist); 195 void evlist__reset_prev_raw_counts(struct evlist *evlist); 196 void evlist__copy_prev_raw_counts(struct evlist *evlist); 197 void evlist__save_aggr_prev_raw_counts(struct evlist *evlist); 198 199 int evlist__alloc_aggr_stats(struct evlist *evlist, int nr_aggr); 200 void evlist__reset_aggr_stats(struct evlist *evlist); 201 void evlist__copy_res_stats(struct perf_stat_config *config, struct evlist *evlist); 202 203 int perf_stat_process_counter(struct perf_stat_config *config, 204 struct evsel *counter); 205 void perf_stat_merge_counters(struct perf_stat_config *config, struct evlist *evlist); 206 void perf_stat_process_percore(struct perf_stat_config *config, struct evlist *evlist); 207 208 struct perf_tool; 209 union perf_event; 210 struct perf_session; 211 struct target; 212 213 int perf_event__process_stat_event(struct perf_session *session, 214 union perf_event *event); 215 216 size_t perf_event__fprintf_stat(union perf_event *event, FILE *fp); 217 size_t perf_event__fprintf_stat_round(union perf_event *event, FILE *fp); 218 size_t perf_event__fprintf_stat_config(union perf_event *event, FILE *fp); 219 220 int create_perf_stat_counter(struct evsel *evsel, 221 struct perf_stat_config *config, 222 struct target *target, 223 int cpu_map_idx); 224 void evlist__print_counters(struct evlist *evlist, struct perf_stat_config *config, 225 struct target *_target, struct timespec *ts, int argc, const char **argv); 226 227 struct metric_expr; 228 double test_generic_metric(struct metric_expr *mexp, int aggr_idx); 229 #endif 230