linux-kernel - Re: [LKP] [lkp-robot] [iversion] c0cef30e4f: aim7.jobs-per-min -18.0% regression

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Message-ID: <CA+55aFypsiFknaNaWQP8rRacNiZLW8sEfU150L0uHF_t8=-3UA@mail.gmail.com>
Date:   Thu, 15 Mar 2018 10:46:45 -0700
From:   Linus Torvalds <torvalds@...ux-foundation.org>
To:     kemi <kemi.wang@...el.com>
Cc:     Jeff Layton <jlayton@...hat.com>,
        kernel test robot <xiaolong.ye@...el.com>, LKP <lkp@...org>,
        LKML <linux-kernel@...r.kernel.org>,
        Thorsten Leemhuis <regressions@...mhuis.info>
Subject: Re: [LKP] [lkp-robot] [iversion] c0cef30e4f: aim7.jobs-per-min -18.0% regression

On Thu, Mar 15, 2018 at 12:33 AM, kemi <kemi.wang@...el.com> wrote:
> Hi, Jeff
>    Today, I deleted the previous kernel images for commit 3da90b159b146672f830bcd2489dd3a1f4e9e089
> and commit c0cef30e4ff0dc025f4a1660b8f0ba43ed58426e, respectively. And, re-run the same aim7
> jobs for three times for each commit. The aim7 score between two commit does not have obvious difference.
>
> Perhaps something weird happen when compiling kernel. Please ignore this report, apologize for the bother.

Ok, I'm not entirely happy with how random this was, but that commit
never looked like a remotely likely culprit, so I think we'll just
chalk it up to bad luck and unknown effects.

                Linus