linux-kernel - Re: [PATCH v2 0/6] perf arm64 metricgroup support

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Message-ID: <20210325203944.GD8931@li-24c3614c-2adc-11b2-a85c-85f334518bdb.ibm.com>
Date:   Thu, 25 Mar 2021 15:39:44 -0500
From:   "Paul A. Clarke" <pc@...ibm.com>
To:     John Garry <john.garry@...wei.com>
Cc:     will@...nel.org, mathieu.poirier@...aro.org, leo.yan@...aro.org,
        peterz@...radead.org, mingo@...hat.com, acme@...nel.org,
        mark.rutland@....com, alexander.shishkin@...ux.intel.com,
        jolsa@...hat.com, namhyung@...nel.org, irogers@...gle.com,
        linuxarm@...wei.com, kjain@...ux.ibm.com,
        kan.liang@...ux.intel.com, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, zhangshaokun@...ilicon.com
Subject: Re:  [PATCH v2 0/6] perf arm64 metricgroup support

On Thu, Mar 25, 2021 at 06:33:12PM +0800, John Garry wrote:
> Metric reuse support is added for pmu-events parse metric testcase.
> This had been broken on power9 recentlty:
> https://lore.kernel.org/lkml/20210324015418.GC8931@li-24c3614c-2adc-11b2-a85c-85f334518bdb.ibm.com/

Much better.  Before:
--
$ perf test -v 10 2>&1 | grep -i error | wc -l
112
--
After:
--
$ perf test -v 10 2>&1 | grep -i error | wc -l
17
--

And these seem like different types of issues:
--
$ perf test -v 10 2>&1 | grep -i error
Error string 'Cannot find PMU `nest_mcs01_imc'. Missing kernel support?' help '(null)'
Error string 'Cannot find PMU `nest_mcs01_imc'. Missing kernel support?' help '(null)'
Error string 'Cannot find PMU `nest_mcs23_imc'. Missing kernel support?' help '(null)'
Error string 'Cannot find PMU `nest_mcs23_imc'. Missing kernel support?' help '(null)'
Error string 'Cannot find PMU `nest_mcs01_imc'. Missing kernel support?' help '(null)'
Error string 'Cannot find PMU `nest_mcs01_imc'. Missing kernel support?' help '(null)'
Error string 'Cannot find PMU `nest_mcs23_imc'. Missing kernel support?' help '(null)'
Error string 'Cannot find PMU `nest_mcs23_imc'. Missing kernel support?' help '(null)'
Error string 'Cannot find PMU `nest_powerbus0_imc'. Missing kernel support?' help '(null)'
Error string 'Cannot find PMU `nest_mcs23_imc'. Missing kernel support?' help '(null)'
Error string 'Cannot find PMU `nest_mcs01_imc'. Missing kernel support?' help '(null)'
Error string 'Cannot find PMU `nest_mcs01_imc'. Missing kernel support?' help '(null)'
Error string 'Cannot find PMU `nest_mcs01_imc'. Missing kernel support?' help '(null)'
Error string 'Cannot find PMU `nest_mcs01_imc'. Missing kernel support?' help '(null)'
Error string 'Cannot find PMU `nest_mcs23_imc'. Missing kernel support?' help '(null)'
Error string 'Cannot find PMU `nest_mcs23_imc'. Missing kernel support?' help '(null)'
Error string 'Cannot find PMU `nest_mcs23_imc'. Missing kernel support?' help '(null)'
--

(Added Kajol Jain to CC)

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