[deliverable/linux.git] / tools / perf / util / stat.h

#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
Commit	Line	Data
0007ecea XG	1	#ifndef __PERF_STATS_H
	2	#define __PERF_STATS_H
	3
d944c4ee	4	#include <linux/types.h>
f87027b9	5	#include <stdio.h>
a8e02324	6	#include "xyarray.h"
0007ecea XG	7
	8	struct stats
	9	{
	10	double n, mean, M2;
ffe4f3c0	11	u64 max, min;
0007ecea XG	12	};
0007ecea XG	13
e2f56da1 JO	14	enum perf_stat_evsel_id {
e2f56da1 JO	15	PERF_STAT_EVSEL_ID__NONE = 0,
4c358d5c JO	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,
e2f56da1 JO	20	PERF_STAT_EVSEL_ID__MAX,
	21	};
	22
581cc8a2	23	struct perf_stat_evsel {
e2f56da1 JO	24	struct stats res_stats[3];
	25	enum perf_stat_evsel_id id;
	26	};
	27
f87027b9 JO	28	enum aggr_mode {
	29	AGGR_NONE,
	30	AGGR_GLOBAL,
	31	AGGR_SOCKET,
	32	AGGR_CORE,
32b8af82	33	AGGR_THREAD,
208df99e	34	AGGR_UNSET,
f87027b9 JO	35	};
f87027b9 JO	36
421a50f3 JO	37	struct perf_stat_config {
421a50f3 JO	38	enum aggr_mode aggr_mode;
711a572e	39	bool scale;
5821522e	40	FILE *output;
ec0d3d1f	41	unsigned int interval;
421a50f3 JO	42	};
421a50f3 JO	43
0007ecea XG	44	void update_stats(struct stats *stats, u64 val);
	45	double avg_stats(struct stats *stats);
	46	double stddev_stats(struct stats *stats);
	47	double rel_stddev_stats(double stddev, double avg);
	48
ffe4f3c0 DA	49	static inline void init_stats(struct stats *stats)
	50	{
	51	stats->n = 0.0;
	52	stats->mean = 0.0;
	53	stats->M2 = 0.0;
	54	stats->min = (u64) -1;
	55	stats->max = 0;
	56	}
e2f56da1 JO	57
e2f56da1 JO	58	struct perf_evsel;
24e34f68 JO	59	struct perf_evlist;
24e34f68 JO	60
e2f56da1 JO	61	bool __perf_evsel_stat__is(struct perf_evsel *evsel,
	62	enum perf_stat_evsel_id id);
	63
	64	#define perf_stat_evsel__is(evsel, id) \
	65	__perf_evsel_stat__is(evsel, PERF_STAT_EVSEL_ID__ ## id)
	66
	67	void perf_stat_evsel_id_init(struct perf_evsel *evsel);
	68
f87027b9 JO	69	extern struct stats walltime_nsecs_stats;
	70
	71	void perf_stat__reset_shadow_stats(void);
	72	void perf_stat__update_shadow_stats(struct perf_evsel counter, u64 count,
	73	int cpu);
	74	void perf_stat__print_shadow_stats(FILE out, struct perf_evsel evsel,
	75	double avg, int cpu, enum aggr_mode aggr);
	76
9689edfa JO	77	void perf_evsel__reset_stat_priv(struct perf_evsel *evsel);
	78	int perf_evsel__alloc_stat_priv(struct perf_evsel *evsel);
	79	void perf_evsel__free_stat_priv(struct perf_evsel *evsel);
a939512d JO	80
	81	int perf_evsel__alloc_prev_raw_counts(struct perf_evsel *evsel,
	82	int ncpus, int nthreads);
	83	void perf_evsel__free_prev_raw_counts(struct perf_evsel *evsel);
24e34f68	84
a7d0a102 JO	85	int perf_evsel__alloc_stats(struct perf_evsel *evsel, bool alloc_raw);
a7d0a102 JO	86
24e34f68 JO	87	int perf_evlist__alloc_stats(struct perf_evlist *evlist, bool alloc_raw);
	88	void perf_evlist__free_stats(struct perf_evlist *evlist);
	89	void perf_evlist__reset_stats(struct perf_evlist *evlist);
f80010eb JO	90
	91	int perf_stat_process_counter(struct perf_stat_config *config,
	92	struct perf_evsel *counter);
0007ecea	93	#endif