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
13 struct perf_cpu_map;
14 struct perf_stat_config;
15 struct timespec;
16
17 struct stats {
18 double n, mean, M2;
19 u64 max, min;
20 };
21
22 /* hold aggregated event info */
23 struct 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 */
35 struct 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
46 enum 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
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 no_merge;
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 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 int print_mixed_hw_group_error;
103 const char *csv_sep;
104 struct stats *walltime_nsecs_stats;
105 struct rusage ru_data;
106 struct rusage_stats *ru_stats;
107 struct cpu_aggr_map *aggr_map;
108 aggr_get_id_t aggr_get_id;
109 struct cpu_aggr_map *cpus_aggr_map;
110 u64 *walltime_run;
111 struct rblist metric_events;
112 int ctl_fd;
113 int ctl_fd_ack;
114 bool ctl_fd_close;
115 const char *cgroup_list;
116 unsigned int topdown_level;
117 };
118
119 void perf_stat__set_big_num(int set);
120 void perf_stat__set_no_csv_summary(int set);
121
122 void update_stats(struct stats *stats, u64 val);
123 double avg_stats(struct stats *stats);
124 double stddev_stats(struct stats *stats);
125 double rel_stddev_stats(double stddev, double avg);
126
init_stats(struct stats * stats)127 static inline void init_stats(struct stats *stats)
128 {
129 stats->n = 0.0;
130 stats->mean = 0.0;
131 stats->M2 = 0.0;
132 stats->min = (u64) -1;
133 stats->max = 0;
134 }
135
init_rusage_stats(struct rusage_stats * ru_stats)136 static inline void init_rusage_stats(struct rusage_stats *ru_stats) {
137 init_stats(&ru_stats->ru_utime_usec_stat);
138 init_stats(&ru_stats->ru_stime_usec_stat);
139 }
140
update_rusage_stats(struct rusage_stats * ru_stats,struct rusage * rusage)141 static inline void update_rusage_stats(struct rusage_stats *ru_stats, struct rusage* rusage) {
142 const u64 us_to_ns = 1000;
143 const u64 s_to_ns = 1000000000;
144 update_stats(&ru_stats->ru_utime_usec_stat,
145 (rusage->ru_utime.tv_usec * us_to_ns + rusage->ru_utime.tv_sec * s_to_ns));
146 update_stats(&ru_stats->ru_stime_usec_stat,
147 (rusage->ru_stime.tv_usec * us_to_ns + rusage->ru_stime.tv_sec * s_to_ns));
148 }
149
150 struct evsel;
151 struct evlist;
152
153 extern struct stats walltime_nsecs_stats;
154 extern struct rusage_stats ru_stats;
155
156 typedef void (*print_metric_t)(struct perf_stat_config *config,
157 void *ctx, const char *color, const char *unit,
158 const char *fmt, double val);
159 typedef void (*new_line_t)(struct perf_stat_config *config, void *ctx);
160
161 /* Used to print the display name of the Default metricgroup for now. */
162 typedef void (*print_metricgroup_header_t)(struct perf_stat_config *config,
163 void *ctx, const char *metricgroup_name);
164
165 void perf_stat__reset_shadow_stats(void);
166 struct perf_stat_output_ctx {
167 void *ctx;
168 print_metric_t print_metric;
169 new_line_t new_line;
170 print_metricgroup_header_t print_metricgroup_header;
171 bool force_header;
172 };
173
174 void perf_stat__print_shadow_stats(struct perf_stat_config *config,
175 struct evsel *evsel,
176 double avg, int aggr_idx,
177 struct perf_stat_output_ctx *out,
178 struct rblist *metric_events);
179 bool perf_stat__skip_metric_event(struct evsel *evsel,
180 struct rblist *metric_events,
181 u64 ena, u64 run);
182 void *perf_stat__print_shadow_stats_metricgroup(struct perf_stat_config *config,
183 struct evsel *evsel,
184 int aggr_idx,
185 int *num,
186 void *from,
187 struct perf_stat_output_ctx *out,
188 struct rblist *metric_events);
189
190 int evlist__alloc_stats(struct perf_stat_config *config,
191 struct evlist *evlist, bool alloc_raw);
192 void evlist__free_stats(struct evlist *evlist);
193 void evlist__reset_stats(struct evlist *evlist);
194 void evlist__reset_prev_raw_counts(struct evlist *evlist);
195 void evlist__copy_prev_raw_counts(struct evlist *evlist);
196 void evlist__save_aggr_prev_raw_counts(struct evlist *evlist);
197
198 int evlist__alloc_aggr_stats(struct evlist *evlist, int nr_aggr);
199 void evlist__reset_aggr_stats(struct evlist *evlist);
200 void evlist__copy_res_stats(struct perf_stat_config *config, struct evlist *evlist);
201
202 int perf_stat_process_counter(struct perf_stat_config *config,
203 struct evsel *counter);
204 void perf_stat_merge_counters(struct perf_stat_config *config, struct evlist *evlist);
205 void perf_stat_process_percore(struct perf_stat_config *config, struct evlist *evlist);
206
207 struct perf_tool;
208 union perf_event;
209 struct perf_session;
210 struct target;
211
212 int perf_event__process_stat_event(struct perf_session *session,
213 union perf_event *event);
214
215 size_t perf_event__fprintf_stat(union perf_event *event, FILE *fp);
216 size_t perf_event__fprintf_stat_round(union perf_event *event, FILE *fp);
217 size_t perf_event__fprintf_stat_config(union perf_event *event, FILE *fp);
218
219 int create_perf_stat_counter(struct evsel *evsel,
220 struct perf_stat_config *config,
221 struct target *target,
222 int cpu_map_idx);
223 void evlist__print_counters(struct evlist *evlist, struct perf_stat_config *config,
224 struct target *_target, struct timespec *ts, int argc, const char **argv);
225
226 struct metric_expr;
227 double test_generic_metric(struct metric_expr *mexp, int aggr_idx);
228 #endif
229