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linux-next/tools/perf/util/stat.h

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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 {
struct stats res_stats[3];
enum perf_stat_evsel_id id;
};
enum aggr_mode {
AGGR_NONE,
AGGR_GLOBAL,
AGGR_SOCKET,
AGGR_CORE,
perf stat: Introduce --per-thread option Currently all the -p option PID arguments tasks values get aggregated and printed as single values. Adding --per-tasks option to print values per task. $ perf stat -e cycles,instructions --per-thread -p 30190,30242 ^C Performance counter stats for process id '30190,30242': cat-30190 0 cycles yes-30242 3,842,525,421 cycles cat-30190 0 instructions yes-30242 10,370,817,010 instructions 1.143155657 seconds time elapsed Also works under interval mode: $ perf stat -e cycles,instructions --per-thread -p 30190,30242 -I 1000 # time comm-pid counts unit events 1.000073435 cat-30190 89,058 cycles 1.000073435 yes-30242 3,360,786,902 cycles (100.00%) 1.000073435 cat-30190 14,066 instructions 1.000073435 yes-30242 9,069,937,462 instructions 2.000204830 cat-30190 0 cycles 2.000204830 yes-30242 3,351,667,626 cycles 2.000204830 cat-30190 0 instructions 2.000204830 yes-30242 9,045,796,885 instructions ^C 2.771286639 cat-30190 0 cycles 2.771286639 yes-30242 2,593,884,166 cycles 2.771286639 cat-30190 0 instructions 2.771286639 yes-30242 7,001,171,191 instructions It works only with -t and -p options, otherwise following error is printed: $ perf stat -e cycles --per-thread -I 1000 ls The --per-thread option is only available when monitoring via -p -t options. -p, --pid <pid> stat events on existing process id -t, --tid <tid> stat events on existing thread id Signed-off-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1435310967-14570-23-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-06-26 17:29:27 +08:00
AGGR_THREAD,
};
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