linux-kernel - Re: [PATCH] mm, oom: allow oom reaper to race with exit

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Message-ID: <20170725153110.qzfz7wpnxkjwh5bc@node.shutemov.name>
Date:   Tue, 25 Jul 2017 18:31:10 +0300
From:   "Kirill A. Shutemov" <kirill@...temov.name>
To:     Michal Hocko <mhocko@...nel.org>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        David Rientjes <rientjes@...gle.com>,
        Tetsuo Handa <penguin-kernel@...ove.SAKURA.ne.jp>,
        Oleg Nesterov <oleg@...hat.com>,
        Hugh Dickins <hughd@...gle.com>,
        Andrea Arcangeli <aarcange@...hat.com>, linux-mm@...ck.org,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] mm, oom: allow oom reaper to race with exit_mmap

On Tue, Jul 25, 2017 at 05:23:00PM +0200, Michal Hocko wrote:
> what is stdev?

Updated tables:

3 runs before the patch:
   Min. 1st Qu.  Median    Mean 3rd Qu.    Max.  Stdev
 177200  205000  212900  217800  223700 2377000  32868
 172400  201700  209700  214300  220600 1343000  31191
 175700  203800  212300  217100  223000 1061000  31195

3 runs after the patch:
   Min. 1st Qu.  Median    Mean 3rd Qu.    Max.  Stdev
 175900  204800  213000  216400  223600 1989000  27210
 180300  210900  219600  223600  230200 3184000  32609
 182100  212500  222000  226200  232700 1473000  32138

-- 
 Kirill A. Shutemov