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From: Greg KH <gregkh@linuxfoundation.org>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Carel Si <beibei.si@intel.com>, 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: Wed, 15 Dec 2021 13:54:33 +0100	[thread overview]
Message-ID: <Ybnlic4KUznysQvl@kroah.com> (raw)
In-Reply-To: <CAHk-=whoMGTAAyah0jH+rHyAXCLnxAHu8KffrR8PrAXGhTxRdA@mail.gmail.com>

On Mon, Dec 13, 2021 at 11:44:31AM -0800, Linus Torvalds wrote:
> 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".

Thanks, I'll keep an eye on this.

greg k-h

  reply	other threads:[~2021-12-15 12:54 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
2021-12-15 12:54               ` Greg KH [this message]
2021-12-13 10:57   ` Carel Si

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