Linux kernel mirror (for testing)
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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
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_CORE,
52 AGGR_THREAD,
53 AGGR_UNSET,
54 AGGR_NODE,
55 AGGR_MAX
56};
57
58struct rusage_stats {
59 struct stats ru_utime_usec_stat;
60 struct stats ru_stime_usec_stat;
61};
62
63typedef struct aggr_cpu_id (*aggr_get_id_t)(struct perf_stat_config *config, struct perf_cpu cpu);
64
65struct 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
117void perf_stat__set_big_num(int set);
118void perf_stat__set_no_csv_summary(int set);
119
120void update_stats(struct stats *stats, u64 val);
121double avg_stats(struct stats *stats);
122double stddev_stats(struct stats *stats);
123double rel_stddev_stats(double stddev, double avg);
124
125static 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
134static 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
139static 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
148struct evsel;
149struct evlist;
150
151extern struct stats walltime_nsecs_stats;
152extern struct rusage_stats ru_stats;
153
154typedef void (*print_metric_t)(struct perf_stat_config *config,
155 void *ctx, const char *color, const char *unit,
156 const char *fmt, double val);
157typedef void (*new_line_t)(struct perf_stat_config *config, void *ctx);
158
159void perf_stat__reset_shadow_stats(void);
160struct 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
167void 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
173int evlist__alloc_stats(struct perf_stat_config *config,
174 struct evlist *evlist, bool alloc_raw);
175void evlist__free_stats(struct evlist *evlist);
176void evlist__reset_stats(struct evlist *evlist);
177void evlist__reset_prev_raw_counts(struct evlist *evlist);
178void evlist__copy_prev_raw_counts(struct evlist *evlist);
179void evlist__save_aggr_prev_raw_counts(struct evlist *evlist);
180
181int evlist__alloc_aggr_stats(struct evlist *evlist, int nr_aggr);
182void evlist__reset_aggr_stats(struct evlist *evlist);
183
184int perf_stat_process_counter(struct perf_stat_config *config,
185 struct evsel *counter);
186void perf_stat_merge_counters(struct perf_stat_config *config, struct evlist *evlist);
187void perf_stat_process_percore(struct perf_stat_config *config, struct evlist *evlist);
188
189struct perf_tool;
190union perf_event;
191struct perf_session;
192struct target;
193
194int perf_event__process_stat_event(struct perf_session *session,
195 union perf_event *event);
196
197size_t perf_event__fprintf_stat(union perf_event *event, FILE *fp);
198size_t perf_event__fprintf_stat_round(union perf_event *event, FILE *fp);
199size_t perf_event__fprintf_stat_config(union perf_event *event, FILE *fp);
200
201int create_perf_stat_counter(struct evsel *evsel,
202 struct perf_stat_config *config,
203 struct target *target,
204 int cpu_map_idx);
205void evlist__print_counters(struct evlist *evlist, struct perf_stat_config *config,
206 struct target *_target, struct timespec *ts, int argc, const char **argv);
207
208struct metric_expr;
209double test_generic_metric(struct metric_expr *mexp, int aggr_idx);
210#endif