From: Mike Galbraith <efault@gmx.de>
To: Dave Jones <davej@redhat.com>
Cc: Linux Kernel <linux-kernel@vger.kernel.org>, x86@kernel.org
Subject: Re: excessive wakeups in 2.6.35
Date: Thu, 05 Aug 2010 05:48:11 +0200 [thread overview]
Message-ID: <1280980091.7508.5.camel@marge.simson.net> (raw)
In-Reply-To: <20100804203811.GA6479@redhat.com>
On Wed, 2010-08-04 at 16:38 -0400, Dave Jones wrote:
> My laptop felt like it was about to burst into flames after I ran
> 2.6.35 on it for a while. It actually got too hot to place on my legs.
Nomex + bigger battery :)
> Powertop showed it running over a 1000 wakeups a second while completely idle.
>
> Chuck Ebbert pointed me at this diff..
> http://git.kernel.org/?p=linux/kernel/git/x86/linux-2.6-tip.git;a=commitdiff;h=396e894d289d69bacf5acd983c97cd6e21a14c08
>
> which brings it back down to a much more respectable 80 wakeups a second.
>
> Is this lined up for 2.6.35.1 ?
Yeah, it's tagged. More trouble than it's worth, optimization dies.
-Mike
prev parent reply other threads:[~2010-08-05 3:47 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-08-04 20:38 Dave Jones
2010-08-05 3:48 ` Mike Galbraith [this message]
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