lkml.org 
[lkml]   [2014]   [Feb]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [RFC PATCH] rcu: move SRCU grace period work to power efficient workqueue
On Mon, Feb 17, 2014 at 06:26:41AM +0100, Mike Galbraith wrote:
> On Wed, 2014-02-12 at 19:23 +0100, Frederic Weisbecker wrote:
> > On Mon, Feb 10, 2014 at 10:47:29AM -0800, Paul E. McKenney wrote:
> > > On Mon, Feb 10, 2014 at 06:08:31PM +0800, Lai Jiangshan wrote:
> > > > Acked-by: Lai Jiangshan <laijs@cn.fujitsu.com>
> > >
> > > Thank you all, queued for 3.15.
> > >
> > > We should also have some facility for moving the SRCU workqueues to
> > > housekeeping/timekeeping kthreads in the NO_HZ_FULL case. Or does
> > > this patch already have that effect?
> >
> > Kevin Hilman and me plan to try to bring a new Kconfig option that could let
> > us control the unbound workqueues affinity through sysfs.
>
> Handing control to the user seemed like a fine thing, so I started
> making a boot option to enable it. Forcing WQ_SYSFS on at sysfs
> decision spot doesn't go well, init order matters :) Post init frobbing
> required if you want to see/frob all unbound.

I'm curious about the details. Is that because some workqueues are registered
before sysfs is even initialized?


\
 
 \ /
  Last update: 2014-02-27 16:21    [W:1.166 / U:0.016 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site