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

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Message-ID: <CA+55aFzRAn=7km3xNn2BKjsLAc=SOma584tYnzD+nanab8H_Hw@mail.gmail.com>
Date:   Sun, 25 Feb 2018 13:18:38 -0800
From:   Linus Torvalds <torvalds@...ux-foundation.org>
To:     kernel test robot <xiaolong.ye@...el.com>
Cc:     Jeff Layton <jlayton@...hat.com>,
        LKML <linux-kernel@...r.kernel.org>, LKP <lkp@...org>
Subject: Re: [lkp-robot] [iversion] c0cef30e4f: aim7.jobs-per-min -18.0% regression

On Sun, Feb 25, 2018 at 7:05 AM, kernel test robot
<xiaolong.ye@...el.com> wrote:
>
> FYI, we noticed a -18.0% regression of aim7.jobs-per-min due to commit:
>
> commit: c0cef30e4ff0dc025f4a1660b8f0ba43ed58426e ("iversion: make inode_cmp_iversion{+raw} return bool instead of s64")

That looks very unlikely.  Can you double-check that? Because it
shouldn't even change anything apart from trivial compiler instruction
selection.

             Linus