On Mon, Oct 02, 2017 at 11:53:12PM +0100, Matt Fleming wrote: > On Wed, 27 Sep, at 01:58:20PM, Rik van Riel wrote: > > > > I like the simplicity of your approach! I hope it does not break > > stuff like netperf... > > > > I have been working on the patch below, which is much less optimistic > > about when to do an affine wakeup than before. > > Running netperf for this patch and Peter's patch shows that Peter's > comes out on top, with scores pretty close to v4.12 in most places on > my 2-NUMA node 48-CPU Xeon box. > > I haven't dug any further into why v4.13-peterz+ is worse than v4.12, > but I will next week. So I was waiting for Rik, who promised to run a bunch of NUMA workloads over the weekend. The trivial thing regresses a wee bit on the overloaded case, I've not yet tried to fix it.
