linux-kernel - Re: [PATCH v3 16/24] thermal: intel: hfi: Define a default class for unclassified tasks

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Message-ID: <20230328234920.GE8958@ranerica-svr.sc.intel.com>
Date:   Tue, 28 Mar 2023 16:49:20 -0700
From:   Ricardo Neri <ricardo.neri-calderon@...ux.intel.com>
To:     "Rafael J. Wysocki" <rafael@...nel.org>
Cc:     "Peter Zijlstra (Intel)" <peterz@...radead.org>,
        Juri Lelli <juri.lelli@...hat.com>,
        Vincent Guittot <vincent.guittot@...aro.org>,
        Ricardo Neri <ricardo.neri@...el.com>,
        "Ravi V. Shankar" <ravi.v.shankar@...el.com>,
        Ben Segall <bsegall@...gle.com>,
        Daniel Bristot de Oliveira <bristot@...hat.com>,
        Dietmar Eggemann <dietmar.eggemann@....com>,
        Len Brown <len.brown@...el.com>, Mel Gorman <mgorman@...e.de>,
        "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
        Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Tim Chen <tim.c.chen@...ux.intel.com>,
        Valentin Schneider <vschneid@...hat.com>,
        Lukasz Luba <lukasz.luba@....com>,
        Ionela Voinescu <ionela.voinescu@....com>, x86@...nel.org,
        "Joel Fernandes (Google)" <joel@...lfernandes.org>,
        linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
        "Tim C . Chen" <tim.c.chen@...el.com>
Subject: Re: [PATCH v3 16/24] thermal: intel: hfi: Define a default class for
 unclassified tasks

On Mon, Mar 27, 2023 at 06:51:33PM +0200, Rafael J. Wysocki wrote:
> On Tue, Feb 7, 2023 at 6:02 AM Ricardo Neri
> <ricardo.neri-calderon@...ux.intel.com> wrote:
> >
> > A task may be unclassified if it has been recently created, spend most of
> > its lifetime sleeping, or hardware has not provided a classification.
> >
> > Most tasks will be eventually classified as scheduler's IPC class 1
> > (HFI class 0). This class corresponds to the capabilities in the legacy,
> > classless, HFI table.
> >
> > IPC class 1 is a reasonable choice until hardware provides an actual
> > classification. Meanwhile, the scheduler will place classes of tasks with
> > higher IPC scores on higher-performance CPUs.
> >
> > Cc: Ben Segall <bsegall@...gle.com>
> > Cc: Daniel Bristot de Oliveira <bristot@...hat.com>
> > Cc: Dietmar Eggemann <dietmar.eggemann@....com>
> > Cc: Ionela Voinescu <ionela.voinescu@....com>
> > Cc: Joel Fernandes (Google) <joel@...lfernandes.org>
> > Cc: Len Brown <len.brown@...el.com>
> > Cc: Lukasz Luba <lukasz.luba@....com>
> > Cc: Mel Gorman <mgorman@...e.de>
> > Cc: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
> > Cc: Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>
> > Cc: Steven Rostedt <rostedt@...dmis.org>
> > Cc: Tim C. Chen <tim.c.chen@...el.com>
> > Cc: Valentin Schneider <vschneid@...hat.com>
> > Cc: x86@...nel.org
> > Cc: linux-pm@...r.kernel.org
> > Cc: linux-kernel@...r.kernel.org
> > Signed-off-by: Ricardo Neri <ricardo.neri-calderon@...ux.intel.com>
> 
> Fine with me, so
> 
> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>

Thank you Rafael!