linux-kernel - Re: [PATCH v8 6/7] tools/perf: Enable Hz/hz prinitg for --metric-only option

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Date:   Thu, 2 Apr 2020 14:49:46 +0200
From:   Jiri Olsa <jolsa@...hat.com>
To:     Kajol Jain <kjain@...ux.ibm.com>
Cc:     acme@...nel.org, linuxppc-dev@...ts.ozlabs.org, mpe@...erman.id.au,
        sukadev@...ux.vnet.ibm.com, linux-kernel@...r.kernel.org,
        linux-perf-users@...r.kernel.org, anju@...ux.vnet.ibm.com,
        maddy@...ux.vnet.ibm.com, ravi.bangoria@...ux.ibm.com,
        peterz@...radead.org, yao.jin@...ux.intel.com, ak@...ux.intel.com,
        jolsa@...nel.org, kan.liang@...ux.intel.com, jmario@...hat.com,
        alexander.shishkin@...ux.intel.com, mingo@...nel.org,
        paulus@...abs.org, namhyung@...nel.org, mpetlan@...hat.com,
        gregkh@...uxfoundation.org, benh@...nel.crashing.org,
        mamatha4@...ux.vnet.ibm.com, mark.rutland@....com,
        tglx@...utronix.de
Subject: Re: [PATCH v8 6/7] tools/perf: Enable Hz/hz prinitg for
 --metric-only option

On Thu, Apr 02, 2020 at 02:03:39AM +0530, Kajol Jain wrote:
> Commit 54b5091606c18 ("perf stat: Implement --metric-only mode")
> added function 'valid_only_metric()' which drops "Hz" or "hz",
> if it is part of "ScaleUnit". This patch enable it since hv_24x7
> supports couple of frequency events.
> 
> Signed-off-by: Kajol Jain <kjain@...ux.ibm.com>
> ---
>  tools/perf/util/stat-display.c | 2 --
>  1 file changed, 2 deletions(-)
> 
> diff --git a/tools/perf/util/stat-display.c b/tools/perf/util/stat-display.c
> index 9e757d18d713..679aaa655824 100644
> --- a/tools/perf/util/stat-display.c
> +++ b/tools/perf/util/stat-display.c
> @@ -237,8 +237,6 @@ static bool valid_only_metric(const char *unit)
>  	if (!unit)
>  		return false;
>  	if (strstr(unit, "/sec") ||
> -	    strstr(unit, "hz") ||
> -	    strstr(unit, "Hz") ||

will this change output of --metric-only for some setups then?

Andi, are you ok with this?

other than this, the patchset looks ok to me

thanks,
jirka

>  	    strstr(unit, "CPUs utilized"))
>  		return false;
>  	return true;
> -- 
> 2.21.0
>