Re: [PATCH 3/3] workqueue: Add anon workqueue sysfs hierarchy

From: Tejun Heo
Date: Sat Mar 22 2014 - 14:56:52 EST

On Sat, Mar 22, 2014 at 06:01:18PM +0100, Frederic Weisbecker wrote:
> 1) Call a per workqueue mutex when a work execute on an ordered workqueue. Although
> contention should be very rare (only while we replace the workqueue attrs and
> switch to a new worker), frequent locking may have a visible impact.
> 2) Have a seperate worker for all ordered workqueues. But we may lose a bit of
> serialization with other workqueues along the way.

Ordered workqueues are always bound to the fallback default worker
pool. Why not just adjust cpus_allowed of the worker pool?


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