linux-kernel - Re: [regression v4.0-rc1] mm: IPIs from TLB flushes causing significant performance degradation.

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Message-ID: <CAG-aW05TMa_FQFJvK7Bt=JxktPauHZmUqk2ndiNYWvHTJAtj1w@mail.gmail.com>
Date:	Mon, 2 Mar 2015 20:45:23 +0100
From:	Matt <jackdachef@...il.com>
To:	Dave Hansen <dave@...1.net>
Cc:	Linux Kernel <linux-kernel@...r.kernel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Will Deacon <will.deacon@....com>
Subject: Re: [regression v4.0-rc1] mm: IPIs from TLB flushes causing
 significant performance degradation.

On Mon, Mar 2, 2015 at 8:25 PM, Dave Hansen <dave@...1.net> wrote:
> On 03/02/2015 11:17 AM, Matt wrote:
>> Linus already posted a fix to the problem, however I can't seem to
>> find the matching commit in his tree (searching for "TLC regression"
>> or "TLB cache").
>
> It's in 721c21c17ab958abf19a8fc611c3bd4743680e38 iirc.

Mea culpa, should have looked at the date of the thread - was just
grasping at straws to make an help attempt :/

I'll refrain from posting in this thread then to avoid clutter & load
to the list

(this is way over my head, I'm mostly doing minor patch porting and
custom kernels as a hobby)

Kind Regards

Matt
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