Re: [RFC PATCH 0/4] cgroup aware workqueues

[Tejun Heo]

Hello,

On Mon, Mar 21, 2016 at 09:58:39AM +0200, Michael Rapoport wrote:
> I did some performance evaluation of different threading models in vhost, 
> and in most tests replacing vhost kthread's with workqueues degrades the 
> performance. Moreover, having thread management inside the vhost provides 

There really shouldn't be any difference when using unbound
workqueues.  workqueue becomes a convenience thing which manages
worker pools and there shouldn't be any difference between workqueue
workers and kthreads in terms of behavior.

> opportunity for optimization, at least for some workloads...

What sort of optimizations are we talking about?

Thanks.

-- 
tejun