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 "counts.h"
11
12struct perf_cpu_map;
13struct perf_stat_config;
14struct timespec;
15
16struct stats {
17 double n, mean, M2;
18 u64 max, min;
19};
20
21/* hold aggregated event info */
22struct 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 */
34struct 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
45enum 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
59typedef struct aggr_cpu_id (*aggr_get_id_t)(struct perf_stat_config *config, struct perf_cpu cpu);
60
61struct perf_stat_config {
62 enum aggr_mode aggr_mode;
63 u32 aggr_level;
64 bool scale;
65 bool no_inherit;
66 bool identifier;
67 bool csv_output;
68 bool json_output;
69 bool interval_clear;
70 bool metric_only;
71 bool null_run;
72 bool ru_display;
73 bool big_num;
74 bool hybrid_merge;
75 bool walltime_run_table;
76 bool all_kernel;
77 bool all_user;
78 bool percore_show_thread;
79 bool summary;
80 bool no_csv_summary;
81 bool metric_no_group;
82 bool metric_no_merge;
83 bool metric_no_threshold;
84 bool hardware_aware_grouping;
85 bool stop_read_counter;
86 bool iostat_run;
87 char *user_requested_cpu_list;
88 bool system_wide;
89 FILE *output;
90 unsigned int interval;
91 unsigned int timeout;
92 unsigned int unit_width;
93 unsigned int metric_only_len;
94 int times;
95 int run_count;
96 int print_free_counters_hint;
97 const char *csv_sep;
98 struct stats *walltime_nsecs_stats;
99 struct rusage ru_data;
100 struct cpu_aggr_map *aggr_map;
101 aggr_get_id_t aggr_get_id;
102 struct cpu_aggr_map *cpus_aggr_map;
103 u64 *walltime_run;
104 int ctl_fd;
105 int ctl_fd_ack;
106 bool ctl_fd_close;
107 const char *cgroup_list;
108 unsigned int topdown_level;
109};
110
111extern struct perf_stat_config stat_config;
112
113void perf_stat__set_big_num(int set);
114
115void update_stats(struct stats *stats, u64 val);
116double avg_stats(struct stats *stats);
117double stddev_stats(struct stats *stats);
118double rel_stddev_stats(double stddev, double avg);
119
120static inline void init_stats(struct stats *stats)
121{
122 stats->n = 0.0;
123 stats->mean = 0.0;
124 stats->M2 = 0.0;
125 stats->min = (u64) -1;
126 stats->max = 0;
127}
128
129struct evsel;
130struct evlist;
131
132enum metric_threshold_classify {
133 METRIC_THRESHOLD_UNKNOWN,
134 METRIC_THRESHOLD_BAD,
135 METRIC_THRESHOLD_NEARLY_BAD,
136 METRIC_THRESHOLD_LESS_GOOD,
137 METRIC_THRESHOLD_GOOD,
138};
139const char *metric_threshold_classify__color(enum metric_threshold_classify thresh);
140
141typedef void (*print_metric_t)(struct perf_stat_config *config,
142 void *ctx,
143 enum metric_threshold_classify thresh,
144 const char *fmt,
145 const char *unit,
146 double val);
147typedef void (*new_line_t)(struct perf_stat_config *config, void *ctx);
148
149/* Used to print the display name of the Default metricgroup for now. */
150typedef void (*print_metricgroup_header_t)(struct perf_stat_config *config,
151 void *ctx, const char *metricgroup_name);
152
153void perf_stat__reset_shadow_stats(void);
154struct perf_stat_output_ctx {
155 void *ctx;
156 print_metric_t print_metric;
157 new_line_t new_line;
158 print_metricgroup_header_t print_metricgroup_header;
159 bool force_header;
160};
161
162void perf_stat__print_shadow_stats(struct perf_stat_config *config,
163 struct evsel *evsel,
164 int aggr_idx,
165 struct perf_stat_output_ctx *out);
166bool perf_stat__skip_metric_event(struct evsel *evsel, u64 ena, u64 run);
167void *perf_stat__print_shadow_stats_metricgroup(struct perf_stat_config *config,
168 struct evsel *evsel,
169 int aggr_idx,
170 int *num,
171 void *from,
172 struct perf_stat_output_ctx *out);
173
174int evlist__alloc_stats(struct perf_stat_config *config,
175 struct evlist *evlist, bool alloc_raw);
176void evlist__free_stats(struct evlist *evlist);
177void evlist__reset_stats(struct evlist *evlist);
178void evlist__reset_prev_raw_counts(struct evlist *evlist);
179void evlist__copy_prev_raw_counts(struct evlist *evlist);
180void evlist__save_aggr_prev_raw_counts(struct evlist *evlist);
181
182int evlist__alloc_aggr_stats(struct evlist *evlist, int nr_aggr);
183void evlist__reset_aggr_stats(struct evlist *evlist);
184void evlist__copy_res_stats(struct perf_stat_config *config, struct evlist *evlist);
185
186int perf_stat_process_counter(struct perf_stat_config *config,
187 struct evsel *counter);
188void perf_stat_merge_counters(struct perf_stat_config *config, struct evlist *evlist);
189void perf_stat_process_percore(struct perf_stat_config *config, struct evlist *evlist);
190
191struct perf_tool;
192union perf_event;
193struct perf_session;
194struct target;
195
196int perf_event__process_stat_event(const struct perf_tool *tool,
197 struct perf_session *session,
198 union perf_event *event);
199
200size_t perf_event__fprintf_stat(union perf_event *event, FILE *fp);
201size_t perf_event__fprintf_stat_round(union perf_event *event, FILE *fp);
202size_t perf_event__fprintf_stat_config(union perf_event *event, FILE *fp);
203
204void evlist__print_counters(struct evlist *evlist, struct perf_stat_config *config,
205 struct target *_target, struct timespec *ts, int argc, const char **argv);
206
207struct metric_expr;
208double test_generic_metric(struct metric_expr *mexp, int aggr_idx);
209#endif