linux-kernel - Re: [mm] 2a9127fcf2: vm-scalability.throughput 130.0% improvement

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Message-ID: <CAHk-=wiuF-0JSmiDe-A--+Z4UbEWQxQ40ftm88aKwSi0FLvM+g@mail.gmail.com>
Date:   Wed, 5 Aug 2020 11:05:08 -0700
From:   Linus Torvalds <torvalds@...ux-foundation.org>
To:     kernel test robot <rong.a.chen@...el.com>
Cc:     Oleg Nesterov <oleg@...hat.com>, Hugh Dickins <hughd@...gle.com>,
        Michal Hocko <mhocko@...e.com>,
        LKML <linux-kernel@...r.kernel.org>, lkp@...ts.01.org
Subject: Re: [mm] 2a9127fcf2: vm-scalability.throughput 130.0% improvement

W00t!

Usually I think these kinds of big changes are likely outright bugs,
but this time I'll take it, because that improvement was the point and
aim of the change even if I didn't have numbers to back up my BS.

              Linus

On Wed, Aug 5, 2020 at 2:07 AM kernel test robot <rong.a.chen@...el.com> wrote:
>
> Greeting,
>
> FYI, we noticed a 130.0% improvement of vm-scalability.throughput due to commit:
>
> commit: 2a9127fcf2296674d58024f83981f40b128fffea ("mm: rewrite wait_on_page_bit_common() logic")