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| author | Florian Fischer <florian.fischer@muhq.space> | 2022-04-20 12:23:52 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2022-04-20 13:38:41 -0300 |
| commit | c735b0a5217620192a001323e1c2a4b4af5d3dea (patch) | |
| tree | 57e38e6ba931015bf1ad125b0d112ea37d4fd9ef /tools/perf/util/stat.h | |
| parent | c60664dea70a76cdffb4c4c21b2a09153b41a950 (diff) | |
| download | linux-c735b0a5217620192a001323e1c2a4b4af5d3dea.tar.bz2 | |
perf stat: Introduce stats for the user and system rusage times
This is preparation for exporting rusage values as tool events.
Add new global stats tracking the values obtained via rusage.
For now only ru_utime and ru_stime are part of the tracked stats.
Both are stored as nanoseconds to be consistent with 'duration_time',
although the finest resolution the struct timeval data in rusage
provides are microseconds.
Signed-off-by: Florian Fischer <florian.fischer@muhq.space>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20220420102354.468173-2-florian.fischer@muhq.space
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/stat.h')
| -rw-r--r-- | tools/perf/util/stat.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/tools/perf/util/stat.h b/tools/perf/util/stat.h index 335d19cc3063..e31c94d952e9 100644 --- a/tools/perf/util/stat.h +++ b/tools/perf/util/stat.h @@ -108,6 +108,11 @@ struct runtime_stat { struct rblist value_list; }; +struct rusage_stats { + struct stats ru_utime_usec_stat; + struct stats ru_stime_usec_stat; +}; + typedef struct aggr_cpu_id (*aggr_get_id_t)(struct perf_stat_config *config, struct perf_cpu cpu); struct perf_stat_config { @@ -148,6 +153,7 @@ struct perf_stat_config { const char *csv_sep; struct stats *walltime_nsecs_stats; struct rusage ru_data; + struct rusage_stats *ru_stats; struct cpu_aggr_map *aggr_map; aggr_get_id_t aggr_get_id; struct cpu_aggr_map *cpus_aggr_map; @@ -177,6 +183,20 @@ static inline void init_stats(struct stats *stats) stats->max = 0; } +static inline void init_rusage_stats(struct rusage_stats *ru_stats) { + init_stats(&ru_stats->ru_utime_usec_stat); + init_stats(&ru_stats->ru_stime_usec_stat); +} + +static inline void update_rusage_stats(struct rusage_stats *ru_stats, struct rusage* rusage) { + const u64 us_to_ns = 1000; + const u64 s_to_ns = 1000000000; + update_stats(&ru_stats->ru_utime_usec_stat, + (rusage->ru_utime.tv_usec * us_to_ns + rusage->ru_utime.tv_sec * s_to_ns)); + update_stats(&ru_stats->ru_stime_usec_stat, + (rusage->ru_stime.tv_usec * us_to_ns + rusage->ru_stime.tv_sec * s_to_ns)); +} + struct evsel; struct evlist; @@ -196,6 +216,7 @@ bool __perf_stat_evsel__is(struct evsel *evsel, enum perf_stat_evsel_id id); extern struct runtime_stat rt_stat; extern struct stats walltime_nsecs_stats; +extern struct rusage_stats ru_stats; typedef void (*print_metric_t)(struct perf_stat_config *config, void *ctx, const char *color, const char *unit, |