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Subject[PATCH 56/77] perf stat: Add 'walltime_nsecs_stats' pointer to 'struct perf_stat_config'
Date
From: Jiri Olsa <jolsa@kernel.org>

Add 'walltime_nsecs_stats' pointer to 'struct perf_stat_config', so that
it can be passed around and used outside the 'perf stat' command.

It's initialized to point to stat's walltime_nsecs_stats value.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20180830063252.23729-32-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-stat.c | 15 ++++++++-------
tools/perf/util/stat.h | 1 +
2 files changed, 9 insertions(+), 7 deletions(-)

diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 2711d8f6e4b8..381549a989b4 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -195,11 +195,12 @@ static struct perf_stat perf_stat;
static volatile int done = 0;

static struct perf_stat_config stat_config = {
- .aggr_mode = AGGR_GLOBAL,
- .scale = true,
- .unit_width = 4, /* strlen("unit") */
- .run_count = 1,
- .metric_only_len = METRIC_ONLY_LEN,
+ .aggr_mode = AGGR_GLOBAL,
+ .scale = true,
+ .unit_width = 4, /* strlen("unit") */
+ .run_count = 1,
+ .metric_only_len = METRIC_ONLY_LEN,
+ .walltime_nsecs_stats = &walltime_nsecs_stats,
};

static bool is_duration_time(struct perf_evsel *evsel)
@@ -1671,7 +1672,7 @@ static double timeval2double(struct timeval *t)

static void print_footer(struct perf_stat_config *config)
{
- double avg = avg_stats(&walltime_nsecs_stats) / NSEC_PER_SEC;
+ double avg = avg_stats(config->walltime_nsecs_stats) / NSEC_PER_SEC;
FILE *output = config->output;
int n;

@@ -1690,7 +1691,7 @@ static void print_footer(struct perf_stat_config *config)
fprintf(output, " %17.9f seconds sys\n", ru_stime);
}
} else {
- double sd = stddev_stats(&walltime_nsecs_stats) / NSEC_PER_SEC;
+ double sd = stddev_stats(config->walltime_nsecs_stats) / NSEC_PER_SEC;
/*
* Display at most 2 more significant
* digits than the stddev inaccuracy.
diff --git a/tools/perf/util/stat.h b/tools/perf/util/stat.h
index e70e6d93ee1b..35550e3efd81 100644
--- a/tools/perf/util/stat.h
+++ b/tools/perf/util/stat.h
@@ -105,6 +105,7 @@ struct perf_stat_config {
struct runtime_stat *stats;
int stats_num;
const char *csv_sep;
+ struct stats *walltime_nsecs_stats;
};

void update_stats(struct stats *stats, u64 val);
--
2.14.4
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