Messages in this thread | | | Date | Wed, 12 Feb 2014 19:23:38 +0100 | From | Frederic Weisbecker <> | Subject | Re: [RFC PATCH] rcu: move SRCU grace period work to power efficient workqueue |
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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.
The feature actually exist currently but is only enabled for workqueues that have WQ_SYSFS. Writeback and raid5 are the only current users.
See for example: /sys/devices/virtual/workqueue/writeback/cpumask
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