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