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