linux-kernel - Re: [PATCH 05/10] perf stat: Fix metric column display

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Date:   Thu, 7 Jun 2018 16:00:29 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Jiri Olsa <jolsa@...nel.org>
Cc:     Peter Zijlstra <a.p.zijlstra@...llo.nl>,
        lkml <linux-kernel@...r.kernel.org>,
        Ingo Molnar <mingo@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>,
        David Ahern <dsahern@...il.com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Stephane Eranian <eranian@...gle.com>,
        Milian Wolff <milian.wolff@...b.com>,
        Andi Kleen <andi@...stfloor.org>,
        Frederic Weisbecker <frederic@...nel.org>
Subject: Re: [PATCH 05/10] perf stat: Fix metric column display

Em Thu, Jun 07, 2018 at 12:15:08AM +0200, Jiri Olsa escreveu:
> Make the metric only display aligned.
> 
> Before:
>   # perf stat --topdown -I 1000
>   #           time core         cpus retiring             bad speculation      frontend bound       backend bound
>        1.000394323 S0-C0           2     37.4%               12.0%               31.4%               19.2%
>        1.000394323 S0-C1           2     25.1%                9.2%               43.8%               21.9%
>        2.001521204 S0-C0           2     36.4%               11.4%               32.4%               19.8%
>        2.001521204 S0-C1           2     26.2%                9.4%               43.1%               21.3%
>        3.001930208 S0-C0           2     35.1%               10.7%               33.6%               20.6%
>        3.001930208 S0-C1           2     28.9%               10.0%               40.0%               21.1%
> 
> After:
>   # perf stat --topdown -I 1000
>   #           time core         cpus             retiring      bad speculation       frontend bound        backend bound
>        1.000303722 S0-C0           2                34.2%                 7.6%                34.2%                24.0%
>        1.000303722 S0-C1           2                33.1%                 6.4%                36.9%                23.6%
>        2.001281055 S0-C0           2                34.6%                 6.7%                36.8%                21.8%
>        2.001281055 S0-C1           2                32.8%                 7.1%                38.1%                22.0%
>        3.001546080 S0-C0           2                39.3%                 5.5%                32.7%                22.5%
>        3.001546080 S0-C1           2                37.8%                 6.0%                33.1%                23.1%

Thanks, tested, applied.

- Arnaldo