On Tue 25-07-17 18:07:19, Kirill A. Shutemov wrote: > On Tue, Jul 25, 2017 at 04:26:17PM +0200, Michal Hocko wrote: [...] > > Thanks for retesting Kirill. Are those numbers stable over runs? E.g. > > the run without the patch has ~3% variance while the one with the patch > > has it smaller. This sounds suspicious to me. There shouldn't be any > > lock contention (except for the oom killer) so the lock shouldn't make > > any difference wrt. variability. > > There's run-to-tun variability. I'll post new numbers for your new test.
That's what I've seen and the variance was quite large. I suspected shell but if you look at the more dedicated test, the std over avg is still quite large. -- Michal Hocko SUSE Labs
