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_CLUSTER,
52 AGGR_CACHE,
53 AGGR_CORE,
54 AGGR_THREAD,
55 AGGR_UNSET,
56 AGGR_NODE,
57 AGGR_MAX
58};
59
60struct rusage_stats {
61 struct stats ru_utime_usec_stat;
62 struct stats ru_stime_usec_stat;
63};
64
65typedef struct aggr_cpu_id (*aggr_get_id_t)(struct perf_stat_config *config, struct perf_cpu cpu);
66
67struct 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
120void perf_stat__set_big_num(int set);
121void perf_stat__set_no_csv_summary(int set);
122
123void update_stats(struct stats *stats, u64 val);
124double avg_stats(struct stats *stats);
125double stddev_stats(struct stats *stats);
126double rel_stddev_stats(double stddev, double avg);
127
128static 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
137static 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
142static 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
151struct evsel;
152struct evlist;
153
154extern struct stats walltime_nsecs_stats;
155extern struct rusage_stats ru_stats;
156
157typedef void (*print_metric_t)(struct perf_stat_config *config,
158 void *ctx, const char *color, const char *unit,
159 const char *fmt, double val);
160typedef 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. */
163typedef void (*print_metricgroup_header_t)(struct perf_stat_config *config,
164 void *ctx, const char *metricgroup_name);
165
166void perf_stat__reset_shadow_stats(void);
167struct 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
175void 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);
180bool perf_stat__skip_metric_event(struct evsel *evsel,
181 struct rblist *metric_events,
182 u64 ena, u64 run);
183void *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
191int evlist__alloc_stats(struct perf_stat_config *config,
192 struct evlist *evlist, bool alloc_raw);
193void evlist__free_stats(struct evlist *evlist);
194void evlist__reset_stats(struct evlist *evlist);
195void evlist__reset_prev_raw_counts(struct evlist *evlist);
196void evlist__copy_prev_raw_counts(struct evlist *evlist);
197void evlist__save_aggr_prev_raw_counts(struct evlist *evlist);
198
199int evlist__alloc_aggr_stats(struct evlist *evlist, int nr_aggr);
200void evlist__reset_aggr_stats(struct evlist *evlist);
201void evlist__copy_res_stats(struct perf_stat_config *config, struct evlist *evlist);
202
203int perf_stat_process_counter(struct perf_stat_config *config,
204 struct evsel *counter);
205void perf_stat_merge_counters(struct perf_stat_config *config, struct evlist *evlist);
206void perf_stat_process_percore(struct perf_stat_config *config, struct evlist *evlist);
207
208struct perf_tool;
209union perf_event;
210struct perf_session;
211struct target;
212
213int perf_event__process_stat_event(struct perf_session *session,
214 union perf_event *event);
215
216size_t perf_event__fprintf_stat(union perf_event *event, FILE *fp);
217size_t perf_event__fprintf_stat_round(union perf_event *event, FILE *fp);
218size_t perf_event__fprintf_stat_config(union perf_event *event, FILE *fp);
219
220int create_perf_stat_counter(struct evsel *evsel,
221 struct perf_stat_config *config,
222 struct target *target,
223 int cpu_map_idx);
224void evlist__print_counters(struct evlist *evlist, struct perf_stat_config *config,
225 struct target *_target, struct timespec *ts, int argc, const char **argv);
226
227struct metric_expr;
228double test_generic_metric(struct metric_expr *mexp, int aggr_idx);
229#endif