linux-kernel - Re: [PATCH v2 2/2] perf pmu: Improve CPU core PMU HW event list ordering

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Message-ID: <74303789-6c06-574d-674b-202cf84a2018@huawei.com>
Date:   Mon, 3 Aug 2020 09:00:06 +0100
From:   John Garry <john.garry@...wei.com>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>
CC:     Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...hat.com>, <will@...nel.org>,
        <linux-arm-kernel@...ts.infradead.org>, <linuxarm@...wei.com>,
        Ian Rogers <irogers@...gle.com>,
        Andi Kleen <ak@...ux.intel.com>,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 2/2] perf pmu: Improve CPU core PMU HW event list
 ordering

On 17/06/2020 13:15, Arnaldo Carvalho de Melo wrote:
> Em Wed, Jun 17, 2020 at 08:31:02PM +0900, Namhyung Kim escreveu:
>> On Wed, Jun 17, 2020 at 6:06 PM John Garry <john.garry@...wei.com> wrote:
>>>
>>> For perf list, the CPU core PMU HW event ordering is such that not all
>>> events may will be listed adjacent - consider this example:
>>>    cstate_pkg/c6-residency/                           [Kernel PMU event]
>>>    cstate_pkg/c7-residency/                           [Kernel PMU event]
>>>
>>> Signed-off-by: John Garry <john.garry@...wei.com>
>>
>> Acked-by: Namhyung Kim <namhyung@...nel.org>
> 
> Thanks a lot, applied.

Hi Arnaldo,

I'm struggling to understand which branch we should base our development 
on. I don't see these patches in perf/core or linux-next. I saw someone 
mentioned tmp.perf/core as a baseline, but I can't see that branch in 
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git

Please let me know - it would be useful for any dev during the merge window.

Thanks,
John