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_CACHE,
52 AGGR_CORE,
53 AGGR_THREAD,
54 AGGR_UNSET,
55 AGGR_NODE,
56 AGGR_MAX
57};
58
59struct rusage_stats {
60 struct stats ru_utime_usec_stat;
61 struct stats ru_stime_usec_stat;
62};
63
64typedef struct aggr_cpu_id (*aggr_get_id_t)(struct perf_stat_config *config, struct perf_cpu cpu);
65
66struct 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 stop_read_counter;
90 bool iostat_run;
91 char *user_requested_cpu_list;
92 bool system_wide;
93 FILE *output;
94 unsigned int interval;
95 unsigned int timeout;
96 unsigned int unit_width;
97 unsigned int metric_only_len;
98 int times;
99 int run_count;
100 int print_free_counters_hint;
101 int print_mixed_hw_group_error;
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 struct rblist metric_events;
111 int ctl_fd;
112 int ctl_fd_ack;
113 bool ctl_fd_close;
114 const char *cgroup_list;
115 unsigned int topdown_level;
116};
117
118void perf_stat__set_big_num(int set);
119void perf_stat__set_no_csv_summary(int set);
120
121void update_stats(struct stats *stats, u64 val);
122double avg_stats(struct stats *stats);
123double stddev_stats(struct stats *stats);
124double rel_stddev_stats(double stddev, double avg);
125
126static 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
135static 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
140static 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
149struct evsel;
150struct evlist;
151
152extern struct stats walltime_nsecs_stats;
153extern struct rusage_stats ru_stats;
154
155typedef void (*print_metric_t)(struct perf_stat_config *config,
156 void *ctx, const char *color, const char *unit,
157 const char *fmt, double val);
158typedef void (*new_line_t)(struct perf_stat_config *config, void *ctx);
159
160/* Used to print the display name of the Default metricgroup for now. */
161typedef void (*print_metricgroup_header_t)(struct perf_stat_config *config,
162 void *ctx, const char *metricgroup_name);
163
164void perf_stat__reset_shadow_stats(void);
165struct perf_stat_output_ctx {
166 void *ctx;
167 print_metric_t print_metric;
168 new_line_t new_line;
169 print_metricgroup_header_t print_metricgroup_header;
170 bool force_header;
171};
172
173void perf_stat__print_shadow_stats(struct perf_stat_config *config,
174 struct evsel *evsel,
175 double avg, int aggr_idx,
176 struct perf_stat_output_ctx *out,
177 struct rblist *metric_events);
178bool perf_stat__skip_metric_event(struct evsel *evsel,
179 struct rblist *metric_events,
180 u64 ena, u64 run);
181void *perf_stat__print_shadow_stats_metricgroup(struct perf_stat_config *config,
182 struct evsel *evsel,
183 int aggr_idx,
184 int *num,
185 void *from,
186 struct perf_stat_output_ctx *out,
187 struct rblist *metric_events);
188
189int evlist__alloc_stats(struct perf_stat_config *config,
190 struct evlist *evlist, bool alloc_raw);
191void evlist__free_stats(struct evlist *evlist);
192void evlist__reset_stats(struct evlist *evlist);
193void evlist__reset_prev_raw_counts(struct evlist *evlist);
194void evlist__copy_prev_raw_counts(struct evlist *evlist);
195void evlist__save_aggr_prev_raw_counts(struct evlist *evlist);
196
197int evlist__alloc_aggr_stats(struct evlist *evlist, int nr_aggr);
198void evlist__reset_aggr_stats(struct evlist *evlist);
199void evlist__copy_res_stats(struct perf_stat_config *config, struct evlist *evlist);
200
201int perf_stat_process_counter(struct perf_stat_config *config,
202 struct evsel *counter);
203void perf_stat_merge_counters(struct perf_stat_config *config, struct evlist *evlist);
204void perf_stat_process_percore(struct perf_stat_config *config, struct evlist *evlist);
205
206struct perf_tool;
207union perf_event;
208struct perf_session;
209struct target;
210
211int perf_event__process_stat_event(struct perf_session *session,
212 union perf_event *event);
213
214size_t perf_event__fprintf_stat(union perf_event *event, FILE *fp);
215size_t perf_event__fprintf_stat_round(union perf_event *event, FILE *fp);
216size_t perf_event__fprintf_stat_config(union perf_event *event, FILE *fp);
217
218int create_perf_stat_counter(struct evsel *evsel,
219 struct perf_stat_config *config,
220 struct target *target,
221 int cpu_map_idx);
222void evlist__print_counters(struct evlist *evlist, struct perf_stat_config *config,
223 struct target *_target, struct timespec *ts, int argc, const char **argv);
224
225struct metric_expr;
226double test_generic_metric(struct metric_expr *mexp, int aggr_idx);
227#endif