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f7794d5254
Add perf_evsel__read_counter() to read single or group counter. After calling this function the counter's evsel::counts struct is filled with values for the counter and member of its group if there are any. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/20170726120206.9099-3-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
116 lines
3.0 KiB
C
116 lines
3.0 KiB
C
#ifndef __PERF_STATS_H
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#define __PERF_STATS_H
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#include <linux/types.h>
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#include <stdio.h>
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#include "xyarray.h"
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struct stats
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{
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double n, mean, M2;
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u64 max, min;
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};
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enum perf_stat_evsel_id {
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PERF_STAT_EVSEL_ID__NONE = 0,
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PERF_STAT_EVSEL_ID__CYCLES_IN_TX,
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PERF_STAT_EVSEL_ID__TRANSACTION_START,
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PERF_STAT_EVSEL_ID__ELISION_START,
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PERF_STAT_EVSEL_ID__CYCLES_IN_TX_CP,
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PERF_STAT_EVSEL_ID__TOPDOWN_TOTAL_SLOTS,
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PERF_STAT_EVSEL_ID__TOPDOWN_SLOTS_ISSUED,
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PERF_STAT_EVSEL_ID__TOPDOWN_SLOTS_RETIRED,
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PERF_STAT_EVSEL_ID__TOPDOWN_FETCH_BUBBLES,
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PERF_STAT_EVSEL_ID__TOPDOWN_RECOVERY_BUBBLES,
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PERF_STAT_EVSEL_ID__SMI_NUM,
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PERF_STAT_EVSEL_ID__APERF,
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PERF_STAT_EVSEL_ID__MAX,
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};
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struct perf_stat_evsel {
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struct stats res_stats[3];
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enum perf_stat_evsel_id id;
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u64 *group_data;
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};
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enum aggr_mode {
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AGGR_NONE,
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AGGR_GLOBAL,
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AGGR_SOCKET,
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AGGR_CORE,
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AGGR_THREAD,
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AGGR_UNSET,
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};
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struct perf_stat_config {
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enum aggr_mode aggr_mode;
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bool scale;
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FILE *output;
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unsigned int interval;
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};
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void update_stats(struct stats *stats, u64 val);
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double avg_stats(struct stats *stats);
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double stddev_stats(struct stats *stats);
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double rel_stddev_stats(double stddev, double avg);
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static inline void init_stats(struct stats *stats)
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{
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stats->n = 0.0;
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stats->mean = 0.0;
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stats->M2 = 0.0;
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stats->min = (u64) -1;
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stats->max = 0;
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}
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struct perf_evsel;
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struct perf_evlist;
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bool __perf_evsel_stat__is(struct perf_evsel *evsel,
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enum perf_stat_evsel_id id);
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#define perf_stat_evsel__is(evsel, id) \
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__perf_evsel_stat__is(evsel, PERF_STAT_EVSEL_ID__ ## id)
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void perf_stat_evsel_id_init(struct perf_evsel *evsel);
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extern struct stats walltime_nsecs_stats;
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typedef void (*print_metric_t)(void *ctx, const char *color, const char *unit,
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const char *fmt, double val);
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typedef void (*new_line_t )(void *ctx);
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void perf_stat__init_shadow_stats(void);
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void perf_stat__reset_shadow_stats(void);
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void perf_stat__update_shadow_stats(struct perf_evsel *counter, u64 *count,
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int cpu);
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struct perf_stat_output_ctx {
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void *ctx;
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print_metric_t print_metric;
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new_line_t new_line;
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bool force_header;
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};
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void perf_stat__print_shadow_stats(struct perf_evsel *evsel,
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double avg, int cpu,
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struct perf_stat_output_ctx *out);
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void perf_stat__collect_metric_expr(struct perf_evlist *);
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int perf_evlist__alloc_stats(struct perf_evlist *evlist, bool alloc_raw);
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void perf_evlist__free_stats(struct perf_evlist *evlist);
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void perf_evlist__reset_stats(struct perf_evlist *evlist);
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int perf_stat_process_counter(struct perf_stat_config *config,
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struct perf_evsel *counter);
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struct perf_tool;
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union perf_event;
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struct perf_session;
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int perf_event__process_stat_event(struct perf_tool *tool,
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union perf_event *event,
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struct perf_session *session);
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size_t perf_event__fprintf_stat(union perf_event *event, FILE *fp);
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size_t perf_event__fprintf_stat_round(union perf_event *event, FILE *fp);
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size_t perf_event__fprintf_stat_config(union perf_event *event, FILE *fp);
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#endif
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