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Commit 26893a60 authored by Jiri Olsa's avatar Jiri Olsa Committed by Arnaldo Carvalho de Melo
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perf stat: Add 'walltime_nsecs_stats' pointer to 'struct perf_stat_config' 



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: default avatarJiri 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: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 77e0faf8

tools/perf/builtin-stat.c

+8 −7
Original line number Diff line number Diff line
@@ -200,6 +200,7 @@ static struct perf_stat_config stat_config = { 
	.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.

tools/perf/util/stat.h

+1 −0
Original line number Diff line number Diff line
@@ -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);