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- #ifndef __PERF_STATS_H
- #define __PERF_STATS_H
- #include <linux/types.h>
- #include <stdio.h>
- #include "xyarray.h"
- struct stats
- {
- double n, mean, M2;
- u64 max, min;
- };
- enum perf_stat_evsel_id {
- PERF_STAT_EVSEL_ID__NONE = 0,
- PERF_STAT_EVSEL_ID__CYCLES_IN_TX,
- PERF_STAT_EVSEL_ID__TRANSACTION_START,
- PERF_STAT_EVSEL_ID__ELISION_START,
- PERF_STAT_EVSEL_ID__CYCLES_IN_TX_CP,
- PERF_STAT_EVSEL_ID__MAX,
- };
- struct perf_stat_evsel {
- struct stats res_stats[3];
- enum perf_stat_evsel_id id;
- };
- enum aggr_mode {
- AGGR_NONE,
- AGGR_GLOBAL,
- AGGR_SOCKET,
- AGGR_CORE,
- AGGR_THREAD,
- AGGR_UNSET,
- };
- struct perf_stat_config {
- enum aggr_mode aggr_mode;
- bool scale;
- FILE *output;
- unsigned int interval;
- };
- void update_stats(struct stats *stats, u64 val);
- double avg_stats(struct stats *stats);
- double stddev_stats(struct stats *stats);
- double rel_stddev_stats(double stddev, double avg);
- static inline void init_stats(struct stats *stats)
- {
- stats->n = 0.0;
- stats->mean = 0.0;
- stats->M2 = 0.0;
- stats->min = (u64) -1;
- stats->max = 0;
- }
- struct perf_evsel;
- struct perf_evlist;
- bool __perf_evsel_stat__is(struct perf_evsel *evsel,
- enum perf_stat_evsel_id id);
- #define perf_stat_evsel__is(evsel, id) \
- __perf_evsel_stat__is(evsel, PERF_STAT_EVSEL_ID__ ## id)
- void perf_stat_evsel_id_init(struct perf_evsel *evsel);
- extern struct stats walltime_nsecs_stats;
- void perf_stat__reset_shadow_stats(void);
- void perf_stat__update_shadow_stats(struct perf_evsel *counter, u64 *count,
- int cpu);
- void perf_stat__print_shadow_stats(FILE *out, struct perf_evsel *evsel,
- double avg, int cpu, enum aggr_mode aggr);
- void perf_evsel__reset_stat_priv(struct perf_evsel *evsel);
- int perf_evsel__alloc_stat_priv(struct perf_evsel *evsel);
- void perf_evsel__free_stat_priv(struct perf_evsel *evsel);
- int perf_evsel__alloc_prev_raw_counts(struct perf_evsel *evsel,
- int ncpus, int nthreads);
- void perf_evsel__free_prev_raw_counts(struct perf_evsel *evsel);
- int perf_evsel__alloc_stats(struct perf_evsel *evsel, bool alloc_raw);
- int perf_evlist__alloc_stats(struct perf_evlist *evlist, bool alloc_raw);
- void perf_evlist__free_stats(struct perf_evlist *evlist);
- void perf_evlist__reset_stats(struct perf_evlist *evlist);
- int perf_stat_process_counter(struct perf_stat_config *config,
- struct perf_evsel *counter);
- #endif
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