linux-kernel - Re: [pipe] 3c0edea9b2: lmbench3.PIPE.bandwidth.MB/sec -17.0% regression

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Message-ID: <CAHk-=wjj33OvL17p4XOjTjS-_MMEr5p0RqR9yLGhKWV3cgb57w@mail.gmail.com>
Date:   Tue, 10 Dec 2019 09:52:16 -0800
From:   Linus Torvalds <torvalds@...ux-foundation.org>
To:     kernel test robot <rong.a.chen@...el.com>
Cc:     Michal Hocko <mhocko@...nel.org>,
        David Howells <dhowells@...hat.com>,
        LKML <linux-kernel@...r.kernel.org>, lkp@...ts.01.org
Subject: Re: [pipe] 3c0edea9b2: lmbench3.PIPE.bandwidth.MB/sec -17.0% regression

On Tue, Dec 10, 2019 at 6:15 AM kernel test robot <rong.a.chen@...el.com> wrote:
>
> Hi Linus,
>
> Sorry for the inconvenience, indeed, the regression has been fixed.

Woohoo.. And more than fixed, it looks like. Not that I looked at
historical data, I'm not sure how much this number normally
fluctuates. I'm assuming the stddev is just a per-boot "do it a few
times" rather than any long-term thing?

                Linus