linux-kernel - Re: [PATCH 1/9] perf, tools, stat: Move sw clock metrics printout to stat-shadow

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Date:	Fri, 4 Sep 2015 10:25:48 +0200
From:	Jiri Olsa <jolsa@...hat.com>
To:	Andi Kleen <andi@...stfloor.org>
Cc:	acme@...nel.org, jolsa@...nel.org, linux-kernel@...r.kernel.org,
	Andi Kleen <ak@...ux.intel.com>
Subject: Re: [PATCH 1/9] perf, tools, stat: Move sw clock metrics printout to
 stat-shadow

On Wed, Sep 02, 2015 at 04:35:46PM -0700, Andi Kleen wrote:
> From: Andi Kleen <ak@...ux.intel.com>
> 
> The sw clock metrics printing was missed in the earlier move to
> stat-shadow of all the other metric printouts. Move it too.
> 
> Signed-off-by: Andi Kleen <ak@...ux.intel.com>
> ---
>  tools/perf/builtin-stat.c     | 9 ---------
>  tools/perf/util/stat-shadow.c | 3 +++
>  2 files changed, 3 insertions(+), 9 deletions(-)
> 
> diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
> index a96fb5c..77e5781 100644
> --- a/tools/perf/builtin-stat.c
> +++ b/tools/perf/builtin-stat.c
> @@ -510,15 +510,6 @@ static void nsec_printout(int id, int nr, struct perf_evsel *evsel, double avg)
>  
>  	if (evsel->cgrp)
>  		fprintf(output, "%s%s", csv_sep, evsel->cgrp->name);
> -
> -	if (csv_output || stat_config.interval)
> -		return;
> -
> -	if (perf_evsel__match(evsel, SOFTWARE, SW_TASK_CLOCK))
> -		fprintf(output, " # %8.3f CPUs utilized          ",
> -			avg / avg_stats(&walltime_nsecs_stats));
> -	else
> -		fprintf(output, "                                   ");
>  }
>  
>  static void abs_printout(int id, int nr, struct perf_evsel *evsel, double avg)
> diff --git a/tools/perf/util/stat-shadow.c b/tools/perf/util/stat-shadow.c
> index 2a5d8d7..625ab3b 100644
> --- a/tools/perf/util/stat-shadow.c
> +++ b/tools/perf/util/stat-shadow.c
> @@ -413,6 +413,9 @@ void perf_stat__print_shadow_stats(FILE *out, struct perf_evsel *evsel,
>  			ratio = total / avg;
>  
>  		fprintf(out, " # %8.0f cycles / elision       ", ratio);
> +	} else if (perf_evsel__match(evsel, SOFTWARE, SW_TASK_CLOCK) &&
> +		   (ratio = avg_stats(&walltime_nsecs_stats)) != 0) {
> +		fprintf(out, " # %8.3f CPUs utilized          ", avg / ratio);

perf_stat__print_shadow_stats is at this point called only from
abs_printout, while this is nsec_printout.. but it's all factored
later, so I believe this is ok for now

Acked-by: Jiri Olsa <jolsa@...nel.org>

thanks,
jirka
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