linux-kernel - Re: [PATCH v3 0/2] perf test: Add event group test

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Message-ID: <529367b6-e96a-d030-b8a2-bb4ad3d37d90@linux.intel.com>
Date:   Tue, 6 Dec 2022 09:47:57 -0500
From:   "Liang, Kan" <kan.liang@...ux.intel.com>
To:     Ravi Bangoria <ravi.bangoria@....com>, acme@...nel.org
Cc:     irogers@...gle.com, jolsa@...hat.com, namhyung@...nel.org,
        peterz@...radead.org, mark.rutland@....com,
        adrian.hunter@...el.com, alexander.shishkin@...ux.intel.com,
        carsten.haitzler@....com, leo.yan@...aro.org, maddy@...ux.ibm.com,
        kjain@...ux.ibm.com, atrajeev@...ux.vnet.ibm.com,
        tmricht@...ux.ibm.com, linux-perf-users@...r.kernel.org,
        linux-kernel@...r.kernel.org, sandipan.das@....com,
        ananth.narayan@....com, santosh.shukla@....com
Subject: Re: [PATCH v3 0/2] perf test: Add event group test



On 2022-12-05 11:32 p.m., Ravi Bangoria wrote:
> Multiple events in a group can belong to one or more pmus, however
> there are some limitations to it. One of the limitation is, perf
> doesn't allow creating a group of events from different hw pmus.
> Write a simple test to create various combinations of hw, sw and
> uncore pmu events and verify group creation succeeds or fails as
> expected.
> 
> v2: https://lore.kernel.org/r/20221129111946.409-1-ravi.bangoria@amd.com
> v2->v3:
>  - Define a set of uncore pmus that supports more than 3 events. This
>    will prevent false negative results by not picking random uncore
>    pmu. Test will be skipped if no uncore pmu found.
> 
> Ravi Bangoria (2):
>   perf tool: Move pmus list variable to new a file

a new file

Other than the above typo, the patch series looks good to me.

Acked-by: Kan Liang <kan.liang@...ux.intel.com>

Thanks,
Kan

>   perf test: Add event group test
> 
>  tools/perf/tests/Build          |   1 +
>  tools/perf/tests/builtin-test.c |   1 +
>  tools/perf/tests/event_groups.c | 127 ++++++++++++++++++++++++++++++++
>  tools/perf/tests/tests.h        |   1 +
>  tools/perf/util/Build           |   1 +
>  tools/perf/util/pmu.c           |   2 +-
>  tools/perf/util/pmus.c          |   5 ++
>  tools/perf/util/pmus.h          |   9 +++
>  8 files changed, 146 insertions(+), 1 deletion(-)
>  create mode 100644 tools/perf/tests/event_groups.c
>  create mode 100644 tools/perf/util/pmus.c
>  create mode 100644 tools/perf/util/pmus.h
>