linux-kernel - Re: [PATCH 00/24] Complete EEVDF

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Message-ID: <1572d0f2646312767a3ef8b72f740c9033163bf3.camel@gmx.de>
Date: Wed, 14 Aug 2024 18:45:17 +0200
From: Mike Galbraith <efault@....de>
To: Vincent Guittot <vincent.guittot@...aro.org>, Peter Zijlstra
	 <peterz@...radead.org>
Cc: mingo@...hat.com, juri.lelli@...hat.com, dietmar.eggemann@....com, 
 rostedt@...dmis.org, bsegall@...gle.com, mgorman@...e.de,
 vschneid@...hat.com,  linux-kernel@...r.kernel.org, kprateek.nayak@....com,
 wuyun.abel@...edance.com,  youssefesmat@...omium.org, tglx@...utronix.de
Subject: Re: [PATCH 00/24] Complete EEVDF

On Wed, 2024-08-14 at 16:34 +0200, Vincent Guittot wrote:
>
> While trying to test what would be the impact of delayed dequeue on
> load_avg, I noticed something strange with the running slice. I have a
> simple test with 2 always running threads on 1 CPU and the each thread
> runs around 100ms continuously before switching to the other one
> whereas I was expecting 3ms (the sysctl_sched_base_slice on my system)
> between 2 context swicthes
>
> I'm using your sched/core branch. Is it the correct one ?

Hm, building that branch, I see the expected tick granularity (4ms).

	-Mike