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    SubjectRe: [PATCH] mm, oom: allow oom reaper to race with exit_mmap
    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

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