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Message-ID: <a8782d26-6993-8e41-1d0b-3f1a9ab4497a@huawei.com>
Date: Wed, 24 Mar 2021 09:13:04 +0000
From: John Garry <john.garry@...wei.com>
To: "Paul A. Clarke" <pc@...ibm.com>
CC: Jiri Olsa <jolsa@...nel.org>,
Arnaldo Carvalho de Melo <acme@...nel.org>,
lkml <linux-kernel@...r.kernel.org>,
Ingo Molnar <mingo@...nel.org>,
"Namhyung Kim" <namhyung@...nel.org>,
Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
Peter Zijlstra <a.p.zijlstra@...llo.nl>,
Michael Petlan <mpetlan@...hat.com>,
Andi Kleen <ak@...ux.intel.com>,
Kajol Jain <kjain@...ux.ibm.com>,
Stephane Eranian <eranian@...gle.com>,
Ian Rogers <irogers@...gle.com>
Subject: Re: [PATCHv4 00/19] perf metric: Add support to reuse metric
On 24/03/2021 01:54, Paul A. Clarke wrote:
>>> --
>> Since commit 8989f5f07605 ("perf stat: Update POWER9 metrics to utilize
>> other metrics"), power9 has reused metrics.
>>
>> And I am finding that subtest 10.3 caused problems when I tried to introduce
>> metric reuse on arm64, so I was just asking you to check.
>>
>> Now I am a bit confused...
> I now understand your original request!:-)
>
> The above test was run on a POWER8 system.
>
> I do see failures on a POWER9 system:
> --
> $ ./perf test 10
> 10: PMU events :
> 10.1: PMU event table sanity : Ok
> 10.2: PMU event map aliases : Ok
> 10.3: Parsing of PMU event table metrics : Skip (some metrics failed)
> 10.4: Parsing of PMU event table metrics with fake PMUs : Ok
> $ ./perf test --verbose 10 2>&1 | grep -i '^Parse event failed' | wc -l
> 112
ok, thanks for confirming.
I'm looking at fixing it, and the solution doesn't look simple :(
John
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