linux-kernel - Re: [PATCH v3 0/9] sched: Streamline select_task_rq() & select_task_rq

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Message-ID: <jhj3693puas.mognet@arm.com>
Date:   Thu, 16 Apr 2020 12:02:51 +0100
From:   Valentin Schneider <valentin.schneider@....com>
To:     Peter Zijlstra <peterz@...radead.org>
Cc:     linux-kernel@...r.kernel.org, mingo@...nel.org,
        vincent.guittot@...aro.org, dietmar.eggemann@....com,
        Juri Lelli <juri.lelli@...hat.com>,
        Steven Rostedt <rostedt@...dmis.org>
Subject: Re: [PATCH v3 0/9] sched: Streamline select_task_rq() & select_task_rq_fair()


On 16/04/20 12:00, Peter Zijlstra wrote:
> On Thu, Apr 16, 2020 at 12:58:28PM +0200, Peter Zijlstra wrote:
>> On Wed, Apr 15, 2020 at 10:05:03PM +0100, Valentin Schneider wrote:
>> > Valentin Schneider (9):
>> >   sched/fair: find_idlest_group(): Remove unused sd_flag parameter
>> >   sched/debug: Make sd->flags sysctl read-only
>> >   sched: Remove checks against SD_LOAD_BALANCE
>> >   sched/topology: Kill SD_LOAD_BALANCE
>> >   sched: Add WF_TTWU, WF_EXEC wakeup flags
>>
>> How about I queue two first 5, and you rework these last few?
>
> Argh, 4 ofcourse, that 5th patch doesn't make much sense if we have to
> rework those flags like I proposed.
>

Was about to comment on that :) Sounds good to me!

>> >   sched: Kill select_task_rq()'s sd_flag parameter
>> >   sched/fair: Dissociate wakeup decisions from SD flag value
>> >   sched/fair: Split select_task_rq_fair want_affine logic
>> >   sched/topology: Define and use shortcut pointers for wakeup sd_flag scan
>>
>>