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