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SubjectRe: [PATCH 0/8] workqueue: advance concurrency management
Hey,

On Fri, Apr 19, 2013 at 06:10:57AM +0800, Lai Jiangshan wrote:
> Ping.

Sorry, I've been at collab summit / lsf. Plus, it's a bit too late
for for-3.10 anyway. Anyways, after glancing over it, here are my
preliminary thoughts. The first one looks good but I'm not sure about
dropping nr_running adjustment. The only real benefit coming from
that is dropping a sched callback and if there's any performance /
overhead impact, I'm afraid it's gonna be negative. There are actual
benefits in using as few tasks as possible - the cache footprint gets
smaller, so unless there's a clear indication that the suggested
behavior is better in some way, I'm not sure what we're buying with
the proposed changes.

Thanks.

--
tejun


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