linux-kernel - Re: High CPU load when machine is idle (related to PROBLEM: Unusually high load average when idle in 2.6.35, 2.6.35.1 and later)

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Message-ID: <87bp6ozk6y.fsf@free.fr>
Date:	Wed, 20 Oct 2010 22:24:37 +0200
From:	Damien Wyart <damien.wyart@...e.fr>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	Chase Douglas <chase.douglas@...onical.com>,
	Ingo Molnar <mingo@...e.hu>, tmhikaru@...il.com,
	Thomas Gleixner <tglx@...utronix.de>,
	linux-kernel@...r.kernel.org,
	Venkatesh Pallipadi <venki@...gle.com>
Subject: Re: High CPU load when machine is idle (related to PROBLEM: Unusually high load average when idle in 2.6.35, 2.6.35.1 and later)

* Peter Zijlstra <peterz@...radead.org> [101020 19:26]:
> OK, how does this work for people? I find my idle load is still a tad
> high, but maybe I'm not patient enough.

Looks quite fine after some basic tests, much saner than without the
patch. A bit slow to go down, but I reach 0.00 after enough time being
idle.

Can't tell about the behavior after hours of uptime, of course, but the
values during the first minutes after bootup seems OK; without the
patch, they are evidently wrong...

Maybe commit this after some more reviews in the next 1 or 2 days, and
maybe think about further tweaking during 2.6.37?

-- 
Damien
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