linux-kernel - Re: [RFC PATCH] perf test: Workload test of metric and metricgroups

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Date:   Thu, 16 Sep 2021 08:34:15 +0100
From:   John Garry <john.garry@...wei.com>
To:     Ian Rogers <irogers@...gle.com>, Jiri Olsa <jolsa@...hat.com>
CC:     Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Namhyung Kim <namhyung@...nel.org>,
        "Jin Yao" <yao.jin@...ux.intel.com>,
        <linux-perf-users@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <eranian@...gle.com>
Subject: Re: [RFC PATCH] perf test: Workload test of metric and metricgroups

>>> --- /dev/null
>>> +++ b/tools/perf/tests/shell/stat_all_metrics.sh
>>> @@ -0,0 +1,16 @@
>>> +#!/bin/sh
>>> +# perf all metrics test
>>> +# SPDX-License-Identifier: GPL-2.0
>>> +
>>> +set -e
>>> +
>>> +for m in `perf list --raw-dump metrics`; do
>>> +  echo "Testing $m"
>>> +  result=$(perf stat -M "$m" perf bench internals synthesize)
>> good test, but takes forever.. running 'true' should be enough for the test?
>>
>> jirka
> Agreed/done:
> https://lore.kernel.org/linux-perf-users/20210916060525.1890638-1-irogers@google.com/T/#u
> There is an issue that I see a lot of "<not counted>" for metricgroups
> like this. 

https://lore.kernel.org/linux-perf-users/CAP-5=fVERioMuK=JgKr1QWXKvU0Y31efQjxh7hX32ifL9V+_EA@mail.gmail.com/

Same issue, right?

Thanks,
John

> Note, the metricgroups test is also failing on my skylake
> as I hit the bug fixed in:
> https://lore.kernel.org/lkml/20210819054707.1057819-1-irogers@google.com/