xref: /openbmc/linux/tools/perf/util/stat.h (revision de528723)
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 };
51 
52 enum {
53 	CTX_BIT_USER	= 1 << 0,
54 	CTX_BIT_KERNEL	= 1 << 1,
55 	CTX_BIT_HV	= 1 << 2,
56 	CTX_BIT_HOST	= 1 << 3,
57 	CTX_BIT_IDLE	= 1 << 4,
58 	CTX_BIT_MAX	= 1 << 5,
59 };
60 
61 #define NUM_CTX CTX_BIT_MAX
62 
63 enum stat_type {
64 	STAT_NONE = 0,
65 	STAT_NSECS,
66 	STAT_CYCLES,
67 	STAT_STALLED_CYCLES_FRONT,
68 	STAT_STALLED_CYCLES_BACK,
69 	STAT_BRANCHES,
70 	STAT_CACHEREFS,
71 	STAT_L1_DCACHE,
72 	STAT_L1_ICACHE,
73 	STAT_LL_CACHE,
74 	STAT_ITLB_CACHE,
75 	STAT_DTLB_CACHE,
76 	STAT_CYCLES_IN_TX,
77 	STAT_TRANSACTION,
78 	STAT_ELISION,
79 	STAT_TOPDOWN_TOTAL_SLOTS,
80 	STAT_TOPDOWN_SLOTS_ISSUED,
81 	STAT_TOPDOWN_SLOTS_RETIRED,
82 	STAT_TOPDOWN_FETCH_BUBBLES,
83 	STAT_TOPDOWN_RECOVERY_BUBBLES,
84 	STAT_SMI_NUM,
85 	STAT_APERF,
86 	STAT_MAX
87 };
88 
89 struct runtime_stat {
90 	struct rblist value_list;
91 };
92 
93 typedef int (*aggr_get_id_t)(struct perf_stat_config *config,
94 			     struct perf_cpu_map *m, int cpu);
95 
96 struct perf_stat_config {
97 	enum aggr_mode		 aggr_mode;
98 	bool			 scale;
99 	bool			 no_inherit;
100 	bool			 identifier;
101 	bool			 csv_output;
102 	bool			 interval_clear;
103 	bool			 metric_only;
104 	bool			 null_run;
105 	bool			 ru_display;
106 	bool			 big_num;
107 	bool			 no_merge;
108 	bool			 walltime_run_table;
109 	FILE			*output;
110 	unsigned int		 interval;
111 	unsigned int		 timeout;
112 	unsigned int		 initial_delay;
113 	unsigned int		 unit_width;
114 	unsigned int		 metric_only_len;
115 	int			 times;
116 	int			 run_count;
117 	int			 print_free_counters_hint;
118 	int			 print_mixed_hw_group_error;
119 	struct runtime_stat	*stats;
120 	int			 stats_num;
121 	const char		*csv_sep;
122 	struct stats		*walltime_nsecs_stats;
123 	struct rusage		 ru_data;
124 	struct perf_cpu_map		*aggr_map;
125 	aggr_get_id_t		 aggr_get_id;
126 	struct perf_cpu_map		*cpus_aggr_map;
127 	u64			*walltime_run;
128 	struct rblist		 metric_events;
129 };
130 
131 void update_stats(struct stats *stats, u64 val);
132 double avg_stats(struct stats *stats);
133 double stddev_stats(struct stats *stats);
134 double rel_stddev_stats(double stddev, double avg);
135 
136 static inline void init_stats(struct stats *stats)
137 {
138 	stats->n    = 0.0;
139 	stats->mean = 0.0;
140 	stats->M2   = 0.0;
141 	stats->min  = (u64) -1;
142 	stats->max  = 0;
143 }
144 
145 struct evsel;
146 struct evlist;
147 
148 struct perf_aggr_thread_value {
149 	struct evsel *counter;
150 	int id;
151 	double uval;
152 	u64 val;
153 	u64 run;
154 	u64 ena;
155 };
156 
157 bool __perf_evsel_stat__is(struct evsel *evsel,
158 			   enum perf_stat_evsel_id id);
159 
160 #define perf_stat_evsel__is(evsel, id) \
161 	__perf_evsel_stat__is(evsel, PERF_STAT_EVSEL_ID__ ## id)
162 
163 extern struct runtime_stat rt_stat;
164 extern struct stats walltime_nsecs_stats;
165 
166 typedef void (*print_metric_t)(struct perf_stat_config *config,
167 			       void *ctx, const char *color, const char *unit,
168 			       const char *fmt, double val);
169 typedef void (*new_line_t)(struct perf_stat_config *config, void *ctx);
170 
171 void runtime_stat__init(struct runtime_stat *st);
172 void runtime_stat__exit(struct runtime_stat *st);
173 void perf_stat__init_shadow_stats(void);
174 void perf_stat__reset_shadow_stats(void);
175 void perf_stat__reset_shadow_per_stat(struct runtime_stat *st);
176 void perf_stat__update_shadow_stats(struct evsel *counter, u64 count,
177 				    int cpu, struct runtime_stat *st);
178 struct perf_stat_output_ctx {
179 	void *ctx;
180 	print_metric_t print_metric;
181 	new_line_t new_line;
182 	bool force_header;
183 };
184 
185 void perf_stat__print_shadow_stats(struct perf_stat_config *config,
186 				   struct evsel *evsel,
187 				   double avg, int cpu,
188 				   struct perf_stat_output_ctx *out,
189 				   struct rblist *metric_events,
190 				   struct runtime_stat *st);
191 void perf_stat__collect_metric_expr(struct evlist *);
192 
193 int perf_evlist__alloc_stats(struct evlist *evlist, bool alloc_raw);
194 void perf_evlist__free_stats(struct evlist *evlist);
195 void perf_evlist__reset_stats(struct evlist *evlist);
196 void perf_evlist__reset_prev_raw_counts(struct evlist *evlist);
197 
198 int perf_stat_process_counter(struct perf_stat_config *config,
199 			      struct evsel *counter);
200 struct perf_tool;
201 union perf_event;
202 struct perf_session;
203 struct target;
204 
205 int perf_event__process_stat_event(struct perf_session *session,
206 				   union perf_event *event);
207 
208 size_t perf_event__fprintf_stat(union perf_event *event, FILE *fp);
209 size_t perf_event__fprintf_stat_round(union perf_event *event, FILE *fp);
210 size_t perf_event__fprintf_stat_config(union perf_event *event, FILE *fp);
211 
212 int create_perf_stat_counter(struct evsel *evsel,
213 			     struct perf_stat_config *config,
214 			     struct target *target);
215 void
216 perf_evlist__print_counters(struct evlist *evlist,
217 			    struct perf_stat_config *config,
218 			    struct target *_target,
219 			    struct timespec *ts,
220 			    int argc, const char **argv);
221 #endif
222