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.
Thanx, Paul
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