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 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
46enum {
47 CTX_BIT_USER = 1 << 0,
48 CTX_BIT_KERNEL = 1 << 1,
49 CTX_BIT_HV = 1 << 2,
50 CTX_BIT_HOST = 1 << 3,
51 CTX_BIT_IDLE = 1 << 4,
52 CTX_BIT_MAX = 1 << 5,
53};
54
55#define NUM_CTX CTX_BIT_MAX
56
57enum stat_type {
58 STAT_NONE = 0,
59 STAT_NSECS,
60 STAT_CYCLES,
61 STAT_STALLED_CYCLES_FRONT,
62 STAT_STALLED_CYCLES_BACK,
63 STAT_BRANCHES,
64 STAT_CACHEREFS,
65 STAT_L1_DCACHE,
66 STAT_L1_ICACHE,
67 STAT_LL_CACHE,
68 STAT_ITLB_CACHE,
69 STAT_DTLB_CACHE,
70 STAT_CYCLES_IN_TX,
71 STAT_TRANSACTION,
72 STAT_ELISION,
73 STAT_TOPDOWN_TOTAL_SLOTS,
74 STAT_TOPDOWN_SLOTS_ISSUED,
75 STAT_TOPDOWN_SLOTS_RETIRED,
76 STAT_TOPDOWN_FETCH_BUBBLES,
77 STAT_TOPDOWN_RECOVERY_BUBBLES,
78 STAT_SMI_NUM,
79 STAT_APERF,
80 STAT_MAX
81};
82
83struct runtime_stat {
84 struct rblist value_list;
85};
86
87struct perf_stat_config {
88 enum aggr_mode aggr_mode;
89 bool scale;
90 FILE *output;
91 unsigned int interval;
92 unsigned int timeout;
93 int times;
94 struct runtime_stat *stats;
95 int stats_num;
96};
97
98void update_stats(struct stats *stats, u64 val);
99double avg_stats(struct stats *stats);
100double stddev_stats(struct stats *stats);
101double rel_stddev_stats(double stddev, double avg);
102
103static inline void init_stats(struct stats *stats)
104{
105 stats->n = 0.0;
106 stats->mean = 0.0;
107 stats->M2 = 0.0;
108 stats->min = (u64) -1;
109 stats->max = 0;
110}
111
112struct perf_evsel;
113struct perf_evlist;
114
115struct perf_aggr_thread_value {
116 struct perf_evsel *counter;
117 int id;
118 double uval;
119 u64 val;
120 u64 run;
121 u64 ena;
122};
123
124bool __perf_evsel_stat__is(struct perf_evsel *evsel,
125 enum perf_stat_evsel_id id);
126
127#define perf_stat_evsel__is(evsel, id) \
128 __perf_evsel_stat__is(evsel, PERF_STAT_EVSEL_ID__ ## id)
129
130extern struct runtime_stat rt_stat;
131extern struct stats walltime_nsecs_stats;
132
133typedef void (*print_metric_t)(void *ctx, const char *color, const char *unit,
134 const char *fmt, double val);
135typedef void (*new_line_t )(void *ctx);
136
137void runtime_stat__init(struct runtime_stat *st);
138void runtime_stat__exit(struct runtime_stat *st);
139void perf_stat__init_shadow_stats(void);
140void perf_stat__reset_shadow_stats(void);
141void perf_stat__reset_shadow_per_stat(struct runtime_stat *st);
142void perf_stat__update_shadow_stats(struct perf_evsel *counter, u64 count,
143 int cpu, struct runtime_stat *st);
144struct perf_stat_output_ctx {
145 void *ctx;
146 print_metric_t print_metric;
147 new_line_t new_line;
148 bool force_header;
149};
150
151void perf_stat__print_shadow_stats(struct perf_evsel *evsel,
152 double avg, int cpu,
153 struct perf_stat_output_ctx *out,
154 struct rblist *metric_events,
155 struct runtime_stat *st);
156void perf_stat__collect_metric_expr(struct perf_evlist *);
157
158int perf_evlist__alloc_stats(struct perf_evlist *evlist, bool alloc_raw);
159void perf_evlist__free_stats(struct perf_evlist *evlist);
160void perf_evlist__reset_stats(struct perf_evlist *evlist);
161
162int perf_stat_process_counter(struct perf_stat_config *config,
163 struct perf_evsel *counter);
164struct perf_tool;
165union perf_event;
166struct perf_session;
167int perf_event__process_stat_event(struct perf_tool *tool,
168 union perf_event *event,
169 struct perf_session *session);
170
171size_t perf_event__fprintf_stat(union perf_event *event, FILE *fp);
172size_t perf_event__fprintf_stat_round(union perf_event *event, FILE *fp);
173size_t perf_event__fprintf_stat_config(union perf_event *event, FILE *fp);
174#endif