Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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kernel
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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#include "rblist.h"
9
10struct stats
11{
12 double n, mean, M2;
13 u64 max, min;
14};
15
16enum perf_stat_evsel_id {
17 PERF_STAT_EVSEL_ID__NONE = 0,
18 PERF_STAT_EVSEL_ID__CYCLES_IN_TX,
19 PERF_STAT_EVSEL_ID__TRANSACTION_START,
20 PERF_STAT_EVSEL_ID__ELISION_START,
21 PERF_STAT_EVSEL_ID__CYCLES_IN_TX_CP,
22 PERF_STAT_EVSEL_ID__TOPDOWN_TOTAL_SLOTS,
23 PERF_STAT_EVSEL_ID__TOPDOWN_SLOTS_ISSUED,
24 PERF_STAT_EVSEL_ID__TOPDOWN_SLOTS_RETIRED,
25 PERF_STAT_EVSEL_ID__TOPDOWN_FETCH_BUBBLES,
26 PERF_STAT_EVSEL_ID__TOPDOWN_RECOVERY_BUBBLES,
27 PERF_STAT_EVSEL_ID__SMI_NUM,
28 PERF_STAT_EVSEL_ID__APERF,
29 PERF_STAT_EVSEL_ID__MAX,
30};
31
32struct perf_stat_evsel {
33 struct stats res_stats[3];
34 enum perf_stat_evsel_id id;
35 u64 *group_data;
36};
37
38enum aggr_mode {
39 AGGR_NONE,
40 AGGR_GLOBAL,
41 AGGR_SOCKET,
42 AGGR_CORE,
43 AGGR_THREAD,
44 AGGR_UNSET,
45};
46
47enum {
48 CTX_BIT_USER = 1 << 0,
49 CTX_BIT_KERNEL = 1 << 1,
50 CTX_BIT_HV = 1 << 2,
51 CTX_BIT_HOST = 1 << 3,
52 CTX_BIT_IDLE = 1 << 4,
53 CTX_BIT_MAX = 1 << 5,
54};
55
56#define NUM_CTX CTX_BIT_MAX
57
58enum stat_type {
59 STAT_NONE = 0,
60 STAT_NSECS,
61 STAT_CYCLES,
62 STAT_STALLED_CYCLES_FRONT,
63 STAT_STALLED_CYCLES_BACK,
64 STAT_BRANCHES,
65 STAT_CACHEREFS,
66 STAT_L1_DCACHE,
67 STAT_L1_ICACHE,
68 STAT_LL_CACHE,
69 STAT_ITLB_CACHE,
70 STAT_DTLB_CACHE,
71 STAT_CYCLES_IN_TX,
72 STAT_TRANSACTION,
73 STAT_ELISION,
74 STAT_TOPDOWN_TOTAL_SLOTS,
75 STAT_TOPDOWN_SLOTS_ISSUED,
76 STAT_TOPDOWN_SLOTS_RETIRED,
77 STAT_TOPDOWN_FETCH_BUBBLES,
78 STAT_TOPDOWN_RECOVERY_BUBBLES,
79 STAT_SMI_NUM,
80 STAT_APERF,
81 STAT_MAX
82};
83
84struct runtime_stat {
85 struct rblist value_list;
86};
87
88struct perf_stat_config {
89 enum aggr_mode aggr_mode;
90 bool scale;
91 FILE *output;
92 unsigned int interval;
93 struct runtime_stat *stats;
94 int stats_num;
95};
96
97void update_stats(struct stats *stats, u64 val);
98double avg_stats(struct stats *stats);
99double stddev_stats(struct stats *stats);
100double rel_stddev_stats(double stddev, double avg);
101
102static inline void init_stats(struct stats *stats)
103{
104 stats->n = 0.0;
105 stats->mean = 0.0;
106 stats->M2 = 0.0;
107 stats->min = (u64) -1;
108 stats->max = 0;
109}
110
111struct perf_evsel;
112struct perf_evlist;
113
114struct perf_aggr_thread_value {
115 struct perf_evsel *counter;
116 int id;
117 double uval;
118 u64 val;
119 u64 run;
120 u64 ena;
121};
122
123bool __perf_evsel_stat__is(struct perf_evsel *evsel,
124 enum perf_stat_evsel_id id);
125
126#define perf_stat_evsel__is(evsel, id) \
127 __perf_evsel_stat__is(evsel, PERF_STAT_EVSEL_ID__ ## id)
128
129void perf_stat_evsel_id_init(struct perf_evsel *evsel);
130
131extern struct runtime_stat rt_stat;
132extern struct stats walltime_nsecs_stats;
133
134typedef void (*print_metric_t)(void *ctx, const char *color, const char *unit,
135 const char *fmt, double val);
136typedef void (*new_line_t )(void *ctx);
137
138void runtime_stat__init(struct runtime_stat *st);
139void runtime_stat__exit(struct runtime_stat *st);
140void perf_stat__init_shadow_stats(void);
141void perf_stat__reset_shadow_stats(void);
142void perf_stat__reset_shadow_per_stat(struct runtime_stat *st);
143void perf_stat__update_shadow_stats(struct perf_evsel *counter, u64 count,
144 int cpu, struct runtime_stat *st);
145struct perf_stat_output_ctx {
146 void *ctx;
147 print_metric_t print_metric;
148 new_line_t new_line;
149 bool force_header;
150};
151
152void perf_stat__print_shadow_stats(struct perf_evsel *evsel,
153 double avg, int cpu,
154 struct perf_stat_output_ctx *out,
155 struct rblist *metric_events,
156 struct runtime_stat *st);
157void perf_stat__collect_metric_expr(struct perf_evlist *);
158
159int perf_evlist__alloc_stats(struct perf_evlist *evlist, bool alloc_raw);
160void perf_evlist__free_stats(struct perf_evlist *evlist);
161void perf_evlist__reset_stats(struct perf_evlist *evlist);
162
163int perf_stat_process_counter(struct perf_stat_config *config,
164 struct perf_evsel *counter);
165struct perf_tool;
166union perf_event;
167struct perf_session;
168int perf_event__process_stat_event(struct perf_tool *tool,
169 union perf_event *event,
170 struct perf_session *session);
171
172size_t perf_event__fprintf_stat(union perf_event *event, FILE *fp);
173size_t perf_event__fprintf_stat_round(union perf_event *event, FILE *fp);
174size_t perf_event__fprintf_stat_config(union perf_event *event, FILE *fp);
175#endif