| Message ID | 20220428150829.30733-1-atrajeev@linux.vnet.ibm.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | Fix session topology test for powerpc and add utility function to get cpuinfo entries | expand |
-----Original Message-----
From: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
To: acme@kernel.org, jolsa@kernel.org, disgoel@linux.vnet.ibm.com
Cc: mpe@ellerman.id.au, linux-perf-users@vger.kernel.org,
linuxppc-dev@lists.ozlabs.org, maddy@linux.vnet.ibm.com,
rnsastry@linux.ibm.com, kjain@linux.ibm.com, irogers@google.com
Subject: [PATCH 0/2] Fix session topology test for powerpc and add
utility function to get cpuinfo entries
Date: Thu, 28 Apr 2022 20:38:27 +0530
The session topology test fails in powerpc pSeries platform.Test
logs:<<>>Session topology : FAILED!<<>>
This test uses cpu topology information and in powerpc,some of the
topology info is restricted in environmentlike virtualized platform.
Hence this test needs to beskipped in pSeries platform for powerpc. The
informationabout platform is available in /proc/cpuinfo.
Patch 1 adds generic utility function in "util/header.c"to read
/proc/cpuinfo for any entry. Though the testcasefix needs value from
"platform" entry, making this as ageneric function to return value for
any entry from the/proc/cpuinfo file which can be used commonly in
futureusecases.
Patch 2 uses the newly added utility function to look forplatform and
skip the test in pSeries platform for powerpc.
Athira Rajeev (2): tools/perf: Add utility function to read
/proc/cpuinfo for any field tools/perf/tests: Fix session topology
test to skip the test in guest environment
Tested the patches on powerpc and powernv, verified perf test session
topology test with the patch set.Tested-by: Disha Goel <
disgoel@linux.vnet.ibm.com>
tools/perf/tests/topology.c | 17 ++++++++++++
tools/perf/util/header.c | 54 +++++++++++++++++++++++++++++++++++++
tools/perf/util/header.h | 1 + 3 files changed, 72 insertions(+)
The session topology test fails in powerpc pSeries platform. Test logs: <<>> Session topology : FAILED! <<>> This test uses cpu topology information and in powerpc, some of the topology info is restricted in environment like virtualized platform. Hence this test needs to be skipped in pSeries platform for powerpc. The information about platform is available in /proc/cpuinfo. Patch 1 adds generic utility function in "util/header.c" to read /proc/cpuinfo for any entry. Though the testcase fix needs value from "platform" entry, making this as a generic function to return value for any entry from the /proc/cpuinfo file which can be used commonly in future usecases. Patch 2 uses the newly added utility function to look for platform and skip the test in pSeries platform for powerpc. Athira Rajeev (2): tools/perf: Add utility function to read /proc/cpuinfo for any field tools/perf/tests: Fix session topology test to skip the test in guest environment tools/perf/tests/topology.c | 17 ++++++++++++ tools/perf/util/header.c | 54 +++++++++++++++++++++++++++++++++++++ tools/perf/util/header.h | 1 + 3 files changed, 72 insertions(+)