On Wed, Oct 26, 2016 at 11:04 AM, Bob Peterson <rpete...@redhat.com> wrote: > > I can test it for you, if you give me about an hour.
I can definitely wait an hour, it would be lovely to see more testing. Especially if you have a NUMA machine and an interesting workload. And if you actually have that NUMA machine and a load that shows the page_waietutu effects, it would also be lovely if you can then _additionally_ test the patch that PeterZ wrote a few weeks ago, it was on the mm list about a month ago: Date: Thu, 29 Sep 2016 15:08:27 +0200 From: Peter Zijlstra <pet...@infradead.org> Subject: Re: page_waitqueue() considered harmful Message-ID: <20160929130827.gx5...@twins.programming.kicks-ass.net> and if you don't find it I can forward it to you (Peter had a few versions, that latest one is the one that looked best). Linus