Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
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 "xyarray.h"
8
9struct stats
10{
11 double n, mean, M2;
12 u64 max, min;
13};
14
15enum perf_stat_evsel_id {
16 PERF_STAT_EVSEL_ID__NONE = 0,
17 PERF_STAT_EVSEL_ID__CYCLES_IN_TX,
18 PERF_STAT_EVSEL_ID__TRANSACTION_START,
19 PERF_STAT_EVSEL_ID__ELISION_START,
20 PERF_STAT_EVSEL_ID__CYCLES_IN_TX_CP,
21 PERF_STAT_EVSEL_ID__TOPDOWN_TOTAL_SLOTS,
22 PERF_STAT_EVSEL_ID__TOPDOWN_SLOTS_ISSUED,
23 PERF_STAT_EVSEL_ID__TOPDOWN_SLOTS_RETIRED,
24 PERF_STAT_EVSEL_ID__TOPDOWN_FETCH_BUBBLES,
25 PERF_STAT_EVSEL_ID__TOPDOWN_RECOVERY_BUBBLES,
26 PERF_STAT_EVSEL_ID__SMI_NUM,
27 PERF_STAT_EVSEL_ID__APERF,
28 PERF_STAT_EVSEL_ID__MAX,
29};
30
31struct perf_stat_evsel {
32 struct stats res_stats[3];
33 enum perf_stat_evsel_id id;
34 u64 *group_data;
35};
36
37enum aggr_mode {
38 AGGR_NONE,
39 AGGR_GLOBAL,
40 AGGR_SOCKET,
41 AGGR_CORE,
42 AGGR_THREAD,
43 AGGR_UNSET,
44};
45
46struct perf_stat_config {
47 enum aggr_mode aggr_mode;
48 bool scale;
49 FILE *output;
50 unsigned int interval;
51};
52
53void update_stats(struct stats *stats, u64 val);
54double avg_stats(struct stats *stats);
55double stddev_stats(struct stats *stats);
56double rel_stddev_stats(double stddev, double avg);
57
58static inline void init_stats(struct stats *stats)
59{
60 stats->n = 0.0;
61 stats->mean = 0.0;
62 stats->M2 = 0.0;
63 stats->min = (u64) -1;
64 stats->max = 0;
65}
66
67struct perf_evsel;
68struct perf_evlist;
69
70bool __perf_evsel_stat__is(struct perf_evsel *evsel,
71 enum perf_stat_evsel_id id);
72
73#define perf_stat_evsel__is(evsel, id) \
74 __perf_evsel_stat__is(evsel, PERF_STAT_EVSEL_ID__ ## id)
75
76void perf_stat_evsel_id_init(struct perf_evsel *evsel);
77
78extern struct stats walltime_nsecs_stats;
79
80typedef void (*print_metric_t)(void *ctx, const char *color, const char *unit,
81 const char *fmt, double val);
82typedef void (*new_line_t )(void *ctx);
83
84void perf_stat__init_shadow_stats(void);
85void perf_stat__reset_shadow_stats(void);
86void perf_stat__update_shadow_stats(struct perf_evsel *counter, u64 count,
87 int cpu);
88struct perf_stat_output_ctx {
89 void *ctx;
90 print_metric_t print_metric;
91 new_line_t new_line;
92 bool force_header;
93};
94
95struct rblist;
96void perf_stat__print_shadow_stats(struct perf_evsel *evsel,
97 double avg, int cpu,
98 struct perf_stat_output_ctx *out,
99 struct rblist *metric_events);
100void perf_stat__collect_metric_expr(struct perf_evlist *);
101
102int perf_evlist__alloc_stats(struct perf_evlist *evlist, bool alloc_raw);
103void perf_evlist__free_stats(struct perf_evlist *evlist);
104void perf_evlist__reset_stats(struct perf_evlist *evlist);
105
106int perf_stat_process_counter(struct perf_stat_config *config,
107 struct perf_evsel *counter);
108struct perf_tool;
109union perf_event;
110struct perf_session;
111int perf_event__process_stat_event(struct perf_tool *tool,
112 union perf_event *event,
113 struct perf_session *session);
114
115size_t perf_event__fprintf_stat(union perf_event *event, FILE *fp);
116size_t perf_event__fprintf_stat_round(union perf_event *event, FILE *fp);
117size_t perf_event__fprintf_stat_config(union perf_event *event, FILE *fp);
118#endif