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From: Linus Torvalds <torvalds@linux-foundation.org>
To: Carel Si <beibei.si@intel.com>
Cc: Jann Horn <jannh@google.com>,
	Miklos Szeredi <mszeredi@redhat.com>,
	LKML <linux-kernel@vger.kernel.org>,
	lkp@lists.01.org, kernel test robot <lkp@intel.com>,
	fengwei.yin@intel.com, stable <stable@vger.kernel.org>
Subject: Re: [LKP] Re: [fget] 054aa8d439: will-it-scale.per_thread_ops -5.7% regression
Date: Mon, 13 Dec 2021 11:44:31 -0800	[thread overview]
Message-ID: <CAHk-=whoMGTAAyah0jH+rHyAXCLnxAHu8KffrR8PrAXGhTxRdA@mail.gmail.com> (raw)
In-Reply-To: <CAHk-=wjsTk2jym66RYkK9kuq8zOXTd2bWPiOq43-iCF6Qy-xQQ@mail.gmail.com>

On Mon, Dec 13, 2021 at 10:37 AM Linus Torvalds
<torvalds@linux-foundation.org> wrote:
>
> So I'll just apply the patch. Thanks for the report and the testing

Done, it's commit e386dfc56f83 ("fget: clarify and improve
__fget_files() implementation") in my tree now.

I didn't mark it as "Fixes:" or for stable, because I can't imagine
that it matters in real life.

But then it  struck me that Greg has mentioned that he ends up getting
a lot of performance regression reports for people testing stable and
they can be distracting.

So I'm adding a stable cc here just so people are aware of this as a
"yeah, will-it-scale.poll2 performance regression has been reported,
has a fix available if somebody cares".

              Linus

  reply	other threads:[~2021-12-13 19:44 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-12-10  5:37 [fget] 054aa8d439: will-it-scale.per_thread_ops -5.7% regression kernel test robot
2021-12-10 18:33 ` Linus Torvalds
2021-12-10 20:29   ` Jann Horn
2021-12-10 21:25     ` Linus Torvalds
2021-12-10 21:59       ` Linus Torvalds
2021-12-10 23:29         ` Jann Horn
2021-12-11  1:01           ` Linus Torvalds
2021-12-11  1:32         ` Linus Torvalds
2021-12-13  8:31         ` [LKP] " Carel Si
2021-12-13 18:37           ` Linus Torvalds
2021-12-13 19:44             ` Linus Torvalds [this message]
2021-12-15 12:54               ` Greg KH
2021-12-13 10:57   ` Carel Si

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