linux-kernel - Re: [PATCH V2 3/3] perf: Optimize sched

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Message-ID: <CAM9d7ciACrxqgWv0A-gxGpqmBFOkqrn8wPhVUUhm8bh2SPk8Lg@mail.gmail.com>
Date:   Mon, 22 Feb 2021 18:46:27 +0900
From:   Namhyung Kim <namhyung@...nel.org>
To:     Peter Zijlstra <peterz@...radead.org>,
        "Liang, Kan" <kan.liang@...ux.intel.com>
Cc:     Ingo Molnar <mingo@...nel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        Stephane Eranian <eranian@...gle.com>,
        Ian Rogers <irogers@...gle.com>,
        Gabriel Marin <gmx@...gle.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Jiri Olsa <jolsa@...hat.com>, Andi Kleen <ak@...ux.intel.com>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Michael Ellerman <mpe@...erman.id.au>
Subject: Re: [PATCH V2 3/3] perf: Optimize sched_task() in a context switch

On Wed, Jan 27, 2021 at 1:41 PM Namhyung Kim <namhyung@...nel.org> wrote:
>
> Hi,
>
> On Mon, Jan 18, 2021 at 4:04 PM Namhyung Kim <namhyung@...nel.org> wrote:
> >
> > Hi Peter and Kan,
> >
> > On Thu, Dec 10, 2020 at 11:25 PM Peter Zijlstra <peterz@...radead.org> wrote:
> > >
> > > On Thu, Dec 10, 2020 at 08:52:55AM -0500, Liang, Kan wrote:
> > > >
> > > >
> > > > On 12/10/2020 2:13 AM, Namhyung Kim wrote:
> > > > > Hi Peter and Kan,
> > > > >
> > > > > How can we move this forward?
> > > >
> > > > Hi Namhyung,
> > > >
> > > > Thanks for the test. The changes look good to me.
> > > >
> > > > Hi Peter,
> > > >
> > > > Should we resend the patch set for further review?
> > >
> > > I've not yet seen a coherent replacement of #3, what I send was just a
> > > PoC.
>
> If it's the only problem of #3 which is an optimization,
> can we merge the actual fixes in #1 and #2 first?
>
> I know some people waiting for the fix..

Ping again...

Thanks,
Namhyung