linux-kernel - Re: s390 perf events JSONs query

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Date:   Fri, 20 Apr 2018 13:34:55 +0100
From:   John Garry <john.garry@...wei.com>
To:     Thomas-Mich Richter <tmricht@...ux.ibm.com>,
        <brueckner@...ux.vnet.ibm.com>, <tmricht@...ux.vnet.ibm.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        "Arnaldo Carvalho de Melo" <acme@...nel.org>
CC:     Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...hat.com>,
        Namhyung Kim <namhyung@...nel.org>,
        Linuxarm <linuxarm@...wei.com>, <linux-kernel@...r.kernel.org>,
        Will Deacon <will.deacon@....com>
Subject: Re: s390 perf events JSONs query

On 20/04/2018 12:44, Thomas-Mich Richter wrote:
> On 04/20/2018 12:51 PM, John Garry wrote:
>> Hi Hendrik, Thomas,
>>
>> I noticed that in 4.17-rc1 support was included for s390 perf pmu-events. I also notice that the JSONs contain many common (identical actually) events between different chips for this arch.
>>
>> Support was added for factoring out common arch events in https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/tools/perf/pmu-events?h=next-20180420&id=e9d32c1bf0cd7a98358ec4aa1625bf2b3459b9ac
>>
>> ARM64 chips use this feature. I am not familiar with the s390 arch, but do you think you could also use this feature?
>>
>> Thanks,
>> John
>>
>
> Thanks John,
>
> for bringing this to my attention. Yes I will definitely look into this feature and will try to
> rework our s390 json files when this seems beneficial.
>
> I did not notice this patch on the linux-perf-users mailing list. Was it there for review?
> I do ask this because recently I have nearly no traffic on this list in my reader, so I wonder
> if there is something wrong with my mailing list subscription or setup.
>

Hi Thomas,

The only relevant list was linux-kernel@...r.kernel.org

This is the only list which the MAINTAINERS file advises to add. I did 
wonder about a dedicated perf list, as I seem to miss mails also.

Hi Peter, Ingo, Arnaldo,

Should linux-perf-users address be added for perf-related patches? If 
so, should we add it to the maintainers file? If not, why no dedicated list?

Thanks,
John

> Thanks.
>