Subject: Re: [PATCH 16/20] selftest/powerpc/pmu/: Add selftest for mmcr1 pmcxsel/unit/cache fields

From: Michael Ellerman <[email-masked]>
Date: Thu, 10 Mar 2022 23:11:30 +1100

Christophe Leroy <[email-masked]> writes:
> Le 27/01/2022 à 08:20, Kajol Jain a écrit :
>> From: Athira Rajeev <[email-masked]>
>> 
>> The testcase uses event code "0x1340000001c040" to verify
>> the settings for different fields in Monitor Mode Control
>> Register 1 (MMCR1). The fields include PMCxSEL, PMCXCOMB
>> PMCxUNIT, cache. Checks if these fields are translated
>> correctly via perf interface to MMCR1
>> 
>> Signed-off-by: Athira Rajeev <[email-masked]>
>
> I see the series has been accepted but this patch has been left over.
>
> Any reason ?

Yeah it's flakey. It counts cache loads but the workload it runs doesn't
necessarily cause any, so it sometimes fails. I've reported that
privately to Kajol.

cheers