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

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Message-ID: <20221206043237.12159-1-ravi.bangoria@amd.com>
Date:   Tue, 6 Dec 2022 10:02:35 +0530
From:   Ravi Bangoria <ravi.bangoria@....com>
To:     <acme@...nel.org>
CC:     <ravi.bangoria@....com>, <kan.liang@...ux.intel.com>,
        <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: [PATCH v3 0/2] perf test: Add event group test

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
  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

-- 
2.38.1