forked from Minki/linux
9df38e82e2
Move 'struct perf_counts' allocation|free|reset code into separate functions. Signed-off-by: Jiri Olsa <jolsa@kernel.org> 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/1434269985-521-13-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
72 lines
1.7 KiB
C
72 lines
1.7 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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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__MAX,
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};
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struct perf_stat {
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struct stats res_stats[3];
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enum perf_stat_evsel_id id;
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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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};
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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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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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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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void perf_stat__print_shadow_stats(FILE *out, struct perf_evsel *evsel,
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double avg, int cpu, enum aggr_mode aggr);
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struct perf_counts *perf_counts__new(int ncpus);
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void perf_counts__delete(struct perf_counts *counts);
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void perf_evsel__reset_counts(struct perf_evsel *evsel, int ncpus);
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int perf_evsel__alloc_counts(struct perf_evsel *evsel, int ncpus);
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void perf_evsel__free_counts(struct perf_evsel *evsel);
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#endif
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