* excessive wakeups in 2.6.35
@ 2010-08-04 20:38 Dave Jones
2010-08-05 3:48 ` Mike Galbraith
0 siblings, 1 reply; 2+ messages in thread
From: Dave Jones @ 2010-08-04 20:38 UTC (permalink / raw)
To: Linux Kernel; +Cc: x86
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.
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 ?
Dave
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: excessive wakeups in 2.6.35
2010-08-04 20:38 excessive wakeups in 2.6.35 Dave Jones
@ 2010-08-05 3:48 ` Mike Galbraith
0 siblings, 0 replies; 2+ messages in thread
From: Mike Galbraith @ 2010-08-05 3:48 UTC (permalink / raw)
To: Dave Jones; +Cc: Linux Kernel, x86
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
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