On Fri, Jul 20, 2012 at 02:14:46PM -0700, Paul E. McKenney wrote:
> Hello!
>
> Tejun just this week posted patches that park the workqueue kthreads,
> which should reduce CPU-online latency under load. The easiest way to
> get these patches appears to be to pull them from Tejun's git tree:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq.git review-wq-hotplug
>
> They pass some extremely mild rcutorture/hotplug testing, and more testing
> will follow. Please take a look at these and give them a go.
And they pass moderate rcutorture/hotplug testing in a number of SMP
configurations. The UP tests failed due to an apparently unrelated
issue that I am chasing down.
Thanx, Paul
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