linux-kernel - Re: [LKP] [mm] ac5b2c1891: vm-scalability.throughput -61.3% regression

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Message-ID: <CAHk-=wguXjkbK8BUU998s7HD7AXJgBkuc9JmuNxiN7uGQyfSfQ@mail.gmail.com>
Date:   Wed, 5 Dec 2018 15:51:06 -0800
From:   Linus Torvalds <torvalds@...ux-foundation.org>
To:     Andrea Arcangeli <aarcange@...hat.com>
Cc:     mgorman@...hsingularity.net, Vlastimil Babka <vbabka@...e.cz>,
        mhocko@...nel.org, ying.huang@...el.com, s.priebe@...fihost.ag,
        Linux List Kernel Mailing <linux-kernel@...r.kernel.org>,
        alex.williamson@...hat.com, lkp@...org,
        David Rientjes <rientjes@...gle.com>, kirill@...temov.name,
        Andrew Morton <akpm@...ux-foundation.org>,
        zi.yan@...rutgers.edu
Subject: Re: [LKP] [mm] ac5b2c1891: vm-scalability.throughput -61.3% regression

On Wed, Dec 5, 2018 at 3:36 PM Andrea Arcangeli <aarcange@...hat.com> wrote:
>
> Like said earlier still better to apply __GFP_COMPACT_ONLY or David's
> patch than to return to v4.18 though.

Ok, I've applied David's latest patch.

I'm not at all objecting to tweaking this further, I just didn't want
to have this regression stand.

           Linus