xref: /openbmc/linux/tools/perf/util/stat.h (revision 165f2d28)
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 "rblist.h"
10 
11 struct perf_cpu_map;
12 struct perf_stat_config;
13 struct timespec;
14 
15 struct stats {
16 	double n, mean, M2;
17 	u64 max, min;
18 };
19 
20 enum perf_stat_evsel_id {
21 	PERF_STAT_EVSEL_ID__NONE = 0,
22 	PERF_STAT_EVSEL_ID__CYCLES_IN_TX,
23 	PERF_STAT_EVSEL_ID__TRANSACTION_START,
24 	PERF_STAT_EVSEL_ID__ELISION_START,
25 	PERF_STAT_EVSEL_ID__CYCLES_IN_TX_CP,
26 	PERF_STAT_EVSEL_ID__TOPDOWN_TOTAL_SLOTS,
27 	PERF_STAT_EVSEL_ID__TOPDOWN_SLOTS_ISSUED,
28 	PERF_STAT_EVSEL_ID__TOPDOWN_SLOTS_RETIRED,
29 	PERF_STAT_EVSEL_ID__TOPDOWN_FETCH_BUBBLES,
30 	PERF_STAT_EVSEL_ID__TOPDOWN_RECOVERY_BUBBLES,
31 	PERF_STAT_EVSEL_ID__SMI_NUM,
32 	PERF_STAT_EVSEL_ID__APERF,
33 	PERF_STAT_EVSEL_ID__MAX,
34 };
35 
36 struct perf_stat_evsel {
37 	struct stats		 res_stats[3];
38 	enum perf_stat_evsel_id	 id;
39 	u64			*group_data;
40 };
41 
42 enum aggr_mode {
43 	AGGR_NONE,
44 	AGGR_GLOBAL,
45 	AGGR_SOCKET,
46 	AGGR_DIE,
47 	AGGR_CORE,
48 	AGGR_THREAD,
49 	AGGR_UNSET,
50 	AGGR_NODE,
51 };
52 
53 enum {
54 	CTX_BIT_USER	= 1 << 0,
55 	CTX_BIT_KERNEL	= 1 << 1,
56 	CTX_BIT_HV	= 1 << 2,
57 	CTX_BIT_HOST	= 1 << 3,
58 	CTX_BIT_IDLE	= 1 << 4,
59 	CTX_BIT_MAX	= 1 << 5,
60 };
61 
62 #define NUM_CTX CTX_BIT_MAX
63 
64 enum stat_type {
65 	STAT_NONE = 0,
66 	STAT_NSECS,
67 	STAT_CYCLES,
68 	STAT_STALLED_CYCLES_FRONT,
69 	STAT_STALLED_CYCLES_BACK,
70 	STAT_BRANCHES,
71 	STAT_CACHEREFS,
72 	STAT_L1_DCACHE,
73 	STAT_L1_ICACHE,
74 	STAT_LL_CACHE,
75 	STAT_ITLB_CACHE,
76 	STAT_DTLB_CACHE,
77 	STAT_CYCLES_IN_TX,
78 	STAT_TRANSACTION,
79 	STAT_ELISION,
80 	STAT_TOPDOWN_TOTAL_SLOTS,
81 	STAT_TOPDOWN_SLOTS_ISSUED,
82 	STAT_TOPDOWN_SLOTS_RETIRED,
83 	STAT_TOPDOWN_FETCH_BUBBLES,
84 	STAT_TOPDOWN_RECOVERY_BUBBLES,
85 	STAT_SMI_NUM,
86 	STAT_APERF,
87 	STAT_MAX
88 };
89 
90 struct runtime_stat {
91 	struct rblist value_list;
92 };
93 
94 typedef int (*aggr_get_id_t)(struct perf_stat_config *config,
95 			     struct perf_cpu_map *m, int cpu);
96 
97 struct perf_stat_config {
98 	enum aggr_mode		 aggr_mode;
99 	bool			 scale;
100 	bool			 no_inherit;
101 	bool			 identifier;
102 	bool			 csv_output;
103 	bool			 interval_clear;
104 	bool			 metric_only;
105 	bool			 null_run;
106 	bool			 ru_display;
107 	bool			 big_num;
108 	bool			 no_merge;
109 	bool			 walltime_run_table;
110 	bool			 all_kernel;
111 	bool			 all_user;
112 	bool			 percore_show_thread;
113 	FILE			*output;
114 	unsigned int		 interval;
115 	unsigned int		 timeout;
116 	unsigned int		 initial_delay;
117 	unsigned int		 unit_width;
118 	unsigned int		 metric_only_len;
119 	int			 times;
120 	int			 run_count;
121 	int			 print_free_counters_hint;
122 	int			 print_mixed_hw_group_error;
123 	struct runtime_stat	*stats;
124 	int			 stats_num;
125 	const char		*csv_sep;
126 	struct stats		*walltime_nsecs_stats;
127 	struct rusage		 ru_data;
128 	struct perf_cpu_map		*aggr_map;
129 	aggr_get_id_t		 aggr_get_id;
130 	struct perf_cpu_map		*cpus_aggr_map;
131 	u64			*walltime_run;
132 	struct rblist		 metric_events;
133 };
134 
135 void update_stats(struct stats *stats, u64 val);
136 double avg_stats(struct stats *stats);
137 double stddev_stats(struct stats *stats);
138 double rel_stddev_stats(double stddev, double avg);
139 
140 static inline void init_stats(struct stats *stats)
141 {
142 	stats->n    = 0.0;
143 	stats->mean = 0.0;
144 	stats->M2   = 0.0;
145 	stats->min  = (u64) -1;
146 	stats->max  = 0;
147 }
148 
149 struct evsel;
150 struct evlist;
151 
152 struct perf_aggr_thread_value {
153 	struct evsel *counter;
154 	int id;
155 	double uval;
156 	u64 val;
157 	u64 run;
158 	u64 ena;
159 };
160 
161 bool __perf_evsel_stat__is(struct evsel *evsel,
162 			   enum perf_stat_evsel_id id);
163 
164 #define perf_stat_evsel__is(evsel, id) \
165 	__perf_evsel_stat__is(evsel, PERF_STAT_EVSEL_ID__ ## id)
166 
167 extern struct runtime_stat rt_stat;
168 extern struct stats walltime_nsecs_stats;
169 
170 typedef void (*print_metric_t)(struct perf_stat_config *config,
171 			       void *ctx, const char *color, const char *unit,
172 			       const char *fmt, double val);
173 typedef void (*new_line_t)(struct perf_stat_config *config, void *ctx);
174 
175 void runtime_stat__init(struct runtime_stat *st);
176 void runtime_stat__exit(struct runtime_stat *st);
177 void perf_stat__init_shadow_stats(void);
178 void perf_stat__reset_shadow_stats(void);
179 void perf_stat__reset_shadow_per_stat(struct runtime_stat *st);
180 void perf_stat__update_shadow_stats(struct evsel *counter, u64 count,
181 				    int cpu, struct runtime_stat *st);
182 struct perf_stat_output_ctx {
183 	void *ctx;
184 	print_metric_t print_metric;
185 	new_line_t new_line;
186 	bool force_header;
187 };
188 
189 void perf_stat__print_shadow_stats(struct perf_stat_config *config,
190 				   struct evsel *evsel,
191 				   double avg, int cpu,
192 				   struct perf_stat_output_ctx *out,
193 				   struct rblist *metric_events,
194 				   struct runtime_stat *st);
195 void perf_stat__collect_metric_expr(struct evlist *);
196 
197 int perf_evlist__alloc_stats(struct evlist *evlist, bool alloc_raw);
198 void perf_evlist__free_stats(struct evlist *evlist);
199 void perf_evlist__reset_stats(struct evlist *evlist);
200 void perf_evlist__reset_prev_raw_counts(struct evlist *evlist);
201 
202 int perf_stat_process_counter(struct perf_stat_config *config,
203 			      struct evsel *counter);
204 struct perf_tool;
205 union perf_event;
206 struct perf_session;
207 struct target;
208 
209 int perf_event__process_stat_event(struct perf_session *session,
210 				   union perf_event *event);
211 
212 size_t perf_event__fprintf_stat(union perf_event *event, FILE *fp);
213 size_t perf_event__fprintf_stat_round(union perf_event *event, FILE *fp);
214 size_t perf_event__fprintf_stat_config(union perf_event *event, FILE *fp);
215 
216 int create_perf_stat_counter(struct evsel *evsel,
217 			     struct perf_stat_config *config,
218 			     struct target *target,
219 			     int cpu);
220 void
221 perf_evlist__print_counters(struct evlist *evlist,
222 			    struct perf_stat_config *config,
223 			    struct target *_target,
224 			    struct timespec *ts,
225 			    int argc, const char **argv);
226 #endif
227