linux-kernel - Re: [PATCh 0/3] x86,tlb: context switch optimizations

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Message-ID: <ZzR4tbZGX3U6yEiW@gmail.com>
Date: Wed, 13 Nov 2024 11:00:21 +0100
From: Ingo Molnar <mingo@...nel.org>
To: Borislav Petkov <bp@...en8.de>
Cc: Rik van Riel <riel@...riel.com>, linux-kernel@...r.kernel.org,
	dave.hansen@...ux.intel.com, luto@...nel.org, peterz@...radead.org,
	tglx@...utronix.de, mingo@...hat.com, x86@...nel.org,
	kernel-team@...a.com, hpa@...or.com
Subject: Re: [PATCh 0/3] x86,tlb: context switch optimizations


* Borislav Petkov <bp@...en8.de> wrote:

> On Fri, Nov 08, 2024 at 07:27:47PM -0500, Rik van Riel wrote:
> > While profiling switch_mm_irqs_off with several workloads,
> > it appears there are two hot spots that probably don't need
> > to be there.
> 
> One of those three is causing the below here, zapping them from tip.

I've zapped the final two commits from tip:x86/mm that are the likely source of the 
regression.

Thanks,

	Ingo