linux-kernel - Re: [PATCH] perf stat: Use proper cpu for shadow stats

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Message-ID: <20201113191804.GH894261@tassilo.jf.intel.com>
Date:   Fri, 13 Nov 2020 11:18:04 -0800
From:   Andi Kleen <ak@...ux.intel.com>
To:     Namhyung Kim <namhyung@...nel.org>
Cc:     Arnaldo Carvalho de Melo <acme@...nel.org>,
        Jiri Olsa <jolsa@...hat.com>, Ingo Molnar <mingo@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        LKML <linux-kernel@...r.kernel.org>,
        Stephane Eranian <eranian@...gle.com>,
        Ian Rogers <irogers@...gle.com>, Sam Xi <xyzsam@...gle.com>
Subject: Re: [PATCH] perf stat: Use proper cpu for shadow stats

>   CPU0      109,621,384      cycles
>   CPU1      159,026,454      cycles
>   CPU2       99,460,366      cycles
>   CPU3      124,144,142      cycles
>   CPU0       44,396,706      instructions      #    0.41  insn per cycle
>   CPU1      120,195,425      instructions      #    0.76  insn per cycle
>   CPU2       44,763,978      instructions      #    0.45  insn per cycle
>   CPU3       69,049,079      instructions      #    0.56  insn per cycle
> 
>        1.001910444 seconds time elapsed

Yes makes a lot of sense. Thanks for tracking that down.

Reviewed-by: Andi Kleen <ak@...ux.intel.com>

-Andi