linux-kernel - Re:Re: [PATCH-RT sched v3 0/2] Optimize the RT group scheduling

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Message-ID: <6af6feef.83df.190bad579d3.Coremail.xavier_qy@163.com>
Date: Tue, 16 Jul 2024 17:17:50 +0800 (CST)
From: Xavier  <xavier_qy@....com>
To: "Peter Zijlstra" <peterz@...radead.org>
Cc: mingo@...hat.com, juri.lelli@...hat.com, vincent.guittot@...aro.org, 
	dietmar.eggemann@....com, rostedt@...dmis.org, bsegall@...gle.com, 
	mgorman@...e.de, bristot@...hat.com, vschneid@...hat.com, 
	linux-kernel@...r.kernel.org, oliver.sang@...el.com
Subject: Re:Re: [PATCH-RT sched v3 0/2] Optimize the RT group scheduling


Hi Peter,

Your meaning is, will the RT scheduling policy be removed? I see that the
current kernel already includes the deadline and EEVDF scheduling policies.
I noticed that the enqueue and dequeue operations for RT are quite
complicated, so I proposed this patch for optimization.



At 2024-07-16 16:59:26, "Peter Zijlstra" <peterz@...radead.org> wrote:
>On Tue, Jul 16, 2024 at 01:25:41PM +0800, Xavier wrote:
>> Hi all,
>> 
>> Patch 3 fixed the issue with handling tasks with prio set to 0 during
>> the execution of blktests.
>
>*sigh*... are you actually using this horror show?
>
>The plan was to scrap this code -- and replace it with something based
>on deadline servers. Sadly not a lot of people are able to work on that
>:/