2014-08-22 12:45+0800, Wanpeng Li: > Hi Radim, > On Thu, Aug 21, 2014 at 06:50:03PM +0200, Radim Krčmář wrote: > >2014-08-21 18:30+0200, Paolo Bonzini: > >> Il 21/08/2014 18:08, Radim Krčmář ha scritto: > >> I'm not sure of the usefulness of patch 6, so I'm going to drop it. > >> I'll keep it in my local junkyard branch in case it's going to be useful > >> in some scenario I didn't think of. > > > >I've been using it to benchmark different values, because it is more > > Is there any benchmark data for this patchset? Sorry, I already returned the testing machine and it wasn't quality benchmarking, so I haven't kept the results ... I used ebizzy and dbench, because ebizzy had large difference between PLE on/off and dbench minimal (without overcommit), so one was looking for improvements while the other was checking regressions. (And they are easy to set up.) >From what I remember, this patch had roughly 5x better performance with ebizzy on 60 VCPU guests and no obvious difference for dbench. (And improvement under overcommit was visible for both.) There was a significant reduction in %sys, which never raised much above 30%, as oposed to original 90%+. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
