lkml.org 
[lkml]   [2013]   [Dec]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: 50 Watt idle power regression bisected to Linux-3.10
From
Date
On Sat, 2013-12-07 at 03:00 -0500, Len Brown wrote:

> No, Linux-3.13-rc3 does not fix this issue, even though it contains
> the following patch, claiming to address an issue with the commit above:
>
> commit ea8117478918a4734586d35ff530721b682425be
> Author: Peter Zijlstra <peterz@infradead.org>
> Date: Wed Sep 11 12:43:13 2013 +0200
>
> sched, idle: Fix the idle polling state logic
>
> Mike reported that commit 7d1a9417 ("x86: Use generic idle loop")
> regressed several workloads and caused excessive reschedule
> interrupts.

It fixes that, except for my Q6600 box. Too bad mwait_idle() went away,
beloved old box doesn't play hints game, so it continues to flog itself.

-Mike



\
 
 \ /
  Last update: 2013-12-07 10:01    [W:0.088 / U:0.020 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site