linux-kernel - Re: s390 perf events JSONs query

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Date:   Fri, 20 Apr 2018 13:44:15 +0200
From:   Thomas-Mich Richter <tmricht@...ux.ibm.com>
To:     John Garry <john.garry@...wei.com>, brueckner@...ux.vnet.ibm.com,
        tmricht@...ux.vnet.ibm.com
Cc:     Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        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 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.

Thanks.

-- 
Thomas Richter, Dept 3303, IBM LTC Boeblingen Germany
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