linux-kernel - Re: [GIT PULL] Scheduler changes for v6.8

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Message-ID: <CAHk-=wgWcYX2oXKtgvNN2LLDXP7kXkbo-xTfumEjmPbjSer2RQ@mail.gmail.com>
Date: Wed, 10 Jan 2024 14:19:11 -0800
From: Linus Torvalds <torvalds@...ux-foundation.org>
To: Ingo Molnar <mingo@...nel.org>
Cc: linux-kernel@...r.kernel.org, Peter Zijlstra <peterz@...radead.org>, 
	Thomas Gleixner <tglx@...utronix.de>, Juri Lelli <juri.lelli@...hat.com>, 
	Vincent Guittot <vincent.guittot@...aro.org>, Dietmar Eggemann <dietmar.eggemann@....com>, 
	Steven Rostedt <rostedt@...dmis.org>, Ben Segall <bsegall@...gle.com>, Mel Gorman <mgorman@...e.de>, 
	Daniel Bristot de Oliveira <bristot@...hat.com>, Valentin Schneider <vschneid@...hat.com>
Subject: Re: [GIT PULL] Scheduler changes for v6.8

On Mon, 8 Jan 2024 at 06:07, Ingo Molnar <mingo@...nel.org> wrote:
>
> Please pull the latest sched/core git tree from:
>
>    git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git sched-core-2024-01-08

Just a note that I'm currently bisecting into this merge for a
horrendous performance regression.

It makes my empty kernel build go from 22 seconds to 44 seconds, and
makes a full kernel build enormously slower too.

I haven't finished the bisection, but it's now inside *just* this
pull, so I can already tell that I'm going to revert something in
here, because this has been making my merge window miserable.

You've been warned,

                Linus