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1 #ifndef __PERF_STATS_H
2 #define __PERF_STATS_H
3
4 #include <linux/types.h>
5 #include <stdio.h>
6 #include "xyarray.h"
7
8 struct stats
9 {
10 double n, mean, M2;
11 u64 max, min;
12 };
13
14 enum perf_stat_evsel_id {
15 PERF_STAT_EVSEL_ID__NONE = 0,
16 PERF_STAT_EVSEL_ID__CYCLES_IN_TX,
17 PERF_STAT_EVSEL_ID__TRANSACTION_START,
18 PERF_STAT_EVSEL_ID__ELISION_START,
19 PERF_STAT_EVSEL_ID__CYCLES_IN_TX_CP,
20 PERF_STAT_EVSEL_ID__MAX,
21 };
22
23 struct perf_stat_evsel {
24 struct stats res_stats[3];
25 enum perf_stat_evsel_id id;
26 };
27
28 enum aggr_mode {
29 AGGR_NONE,
30 AGGR_GLOBAL,
31 AGGR_SOCKET,
32 AGGR_CORE,
33 AGGR_THREAD,
34 AGGR_UNSET,
35 };
36
37 struct perf_stat_config {
38 enum aggr_mode aggr_mode;
39 bool scale;
40 FILE *output;
41 unsigned int interval;
42 };
43
44 void update_stats(struct stats *stats, u64 val);
45 double avg_stats(struct stats *stats);
46 double stddev_stats(struct stats *stats);
47 double rel_stddev_stats(double stddev, double avg);
48
49 static inline void init_stats(struct stats *stats)
50 {
51 stats->n = 0.0;
52 stats->mean = 0.0;
53 stats->M2 = 0.0;
54 stats->min = (u64) -1;
55 stats->max = 0;
56 }
57
58 struct perf_evsel;
59 struct perf_evlist;
60
61 bool __perf_evsel_stat__is(struct perf_evsel *evsel,
62 enum perf_stat_evsel_id id);
63
64 #define perf_stat_evsel__is(evsel, id) \
65 __perf_evsel_stat__is(evsel, PERF_STAT_EVSEL_ID__ ## id)
66
67 void perf_stat_evsel_id_init(struct perf_evsel *evsel);
68
69 extern struct stats walltime_nsecs_stats;
70
71 void perf_stat__reset_shadow_stats(void);
72 void perf_stat__update_shadow_stats(struct perf_evsel *counter, u64 *count,
73 int cpu);
74 void perf_stat__print_shadow_stats(FILE *out, struct perf_evsel *evsel,
75 double avg, int cpu, enum aggr_mode aggr);
76
77 void perf_evsel__reset_stat_priv(struct perf_evsel *evsel);
78 int perf_evsel__alloc_stat_priv(struct perf_evsel *evsel);
79 void perf_evsel__free_stat_priv(struct perf_evsel *evsel);
80
81 int perf_evsel__alloc_prev_raw_counts(struct perf_evsel *evsel,
82 int ncpus, int nthreads);
83 void perf_evsel__free_prev_raw_counts(struct perf_evsel *evsel);
84
85 int perf_evsel__alloc_stats(struct perf_evsel *evsel, bool alloc_raw);
86
87 int perf_evlist__alloc_stats(struct perf_evlist *evlist, bool alloc_raw);
88 void perf_evlist__free_stats(struct perf_evlist *evlist);
89 void perf_evlist__reset_stats(struct perf_evlist *evlist);
90
91 int perf_stat_process_counter(struct perf_stat_config *config,
92 struct perf_evsel *counter);
93 #endif