* Re: [LKP] Re: [fget] 054aa8d439: will-it-scale.per_thread_ops -5.7% regression
[not found] ` <CAHk-=wjsTk2jym66RYkK9kuq8zOXTd2bWPiOq43-iCF6Qy-xQQ@mail.gmail.com>
@ 2021-12-13 19:44 ` Linus Torvalds
2021-12-15 12:54 ` Greg KH
0 siblings, 1 reply; 2+ messages in thread
From: Linus Torvalds @ 2021-12-13 19:44 UTC (permalink / raw)
To: Carel Si
Cc: Jann Horn, Miklos Szeredi, LKML, lkp, kernel test robot,
fengwei.yin, stable
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
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [LKP] Re: [fget] 054aa8d439: will-it-scale.per_thread_ops -5.7% regression
2021-12-13 19:44 ` [LKP] Re: [fget] 054aa8d439: will-it-scale.per_thread_ops -5.7% regression Linus Torvalds
@ 2021-12-15 12:54 ` Greg KH
0 siblings, 0 replies; 2+ messages in thread
From: Greg KH @ 2021-12-15 12:54 UTC (permalink / raw)
To: Linus Torvalds
Cc: Carel Si, Jann Horn, Miklos Szeredi, LKML, lkp, kernel test robot,
fengwei.yin, stable
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
^ permalink raw reply [flat|nested] 2+ messages in thread
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2021-12-13 19:44 ` [LKP] Re: [fget] 054aa8d439: will-it-scale.per_thread_ops -5.7% regression Linus Torvalds
2021-12-15 12:54 ` Greg KH
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