Messages in this thread | | | Subject | Re: 50 Watt idle power regression bisected to Linux-3.10 | From | Mike Galbraith <> | Date | Sat, 07 Dec 2013 09:39:50 +0100 |
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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
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