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 u64 *group_data;
34};
35
36enum aggr_mode {
37 AGGR_NONE,
38 AGGR_GLOBAL,
39 AGGR_SOCKET,
40 AGGR_CORE,
41 AGGR_THREAD,
42 AGGR_UNSET,
43};
44
45struct perf_stat_config {
46 enum aggr_mode aggr_mode;
47 bool scale;
48 FILE *output;
49 unsigned int interval;
50};
51
52void update_stats(struct stats *stats, u64 val);
53double avg_stats(struct stats *stats);
54double stddev_stats(struct stats *stats);
55double rel_stddev_stats(double stddev, double avg);
56
57static inline void init_stats(struct stats *stats)
58{
59 stats->n = 0.0;
60 stats->mean = 0.0;
61 stats->M2 = 0.0;
62 stats->min = (u64) -1;
63 stats->max = 0;
64}
65
66struct perf_evsel;
67struct perf_evlist;
68
69bool __perf_evsel_stat__is(struct perf_evsel *evsel,
70 enum perf_stat_evsel_id id);
71
72#define perf_stat_evsel__is(evsel, id) \
73 __perf_evsel_stat__is(evsel, PERF_STAT_EVSEL_ID__ ## id)
74
75void perf_stat_evsel_id_init(struct perf_evsel *evsel);
76
77extern struct stats walltime_nsecs_stats;
78
79typedef void (*print_metric_t)(void *ctx, const char *color, const char *unit,
80 const char *fmt, double val);
81typedef void (*new_line_t )(void *ctx);
82
83void perf_stat__init_shadow_stats(void);
84void perf_stat__reset_shadow_stats(void);
85void perf_stat__update_shadow_stats(struct perf_evsel *counter, u64 *count,
86 int cpu);
87struct perf_stat_output_ctx {
88 void *ctx;
89 print_metric_t print_metric;
90 new_line_t new_line;
91 bool force_header;
92};
93
94void perf_stat__print_shadow_stats(struct perf_evsel *evsel,
95 double avg, int cpu,
96 struct perf_stat_output_ctx *out);
97void perf_stat__collect_metric_expr(struct perf_evlist *);
98
99int perf_evlist__alloc_stats(struct perf_evlist *evlist, bool alloc_raw);
100void perf_evlist__free_stats(struct perf_evlist *evlist);
101void perf_evlist__reset_stats(struct perf_evlist *evlist);
102
103int perf_stat_process_counter(struct perf_stat_config *config,
104 struct perf_evsel *counter);
105struct perf_tool;
106union perf_event;
107struct perf_session;
108int perf_event__process_stat_event(struct perf_tool *tool,
109 union perf_event *event,
110 struct perf_session *session);
111
112size_t perf_event__fprintf_stat(union perf_event *event, FILE *fp);
113size_t perf_event__fprintf_stat_round(union perf_event *event, FILE *fp);
114size_t perf_event__fprintf_stat_config(union perf_event *event, FILE *fp);
115#endif