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Message-ID: <20250201181129.GA34937@noisy.programming.kicks-ass.net>
Date: Sat, 1 Feb 2025 19:11:29 +0100
From: Peter Zijlstra <peterz@...radead.org>
To: Steven Rostedt <rostedt@...dmis.org>
Cc: linux-kernel@...r.kernel.org, linux-trace-kernel@...r.kernel.org,
	Thomas Gleixner <tglx@...utronix.de>,
	Ankur Arora <ankur.a.arora@...cle.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>, linux-mm@...ck.org,
	x86@...nel.org, akpm@...ux-foundation.org, luto@...nel.org,
	bp@...en8.de, dave.hansen@...ux.intel.com, hpa@...or.com,
	juri.lelli@...hat.com, vincent.guittot@...aro.org,
	willy@...radead.org, mgorman@...e.de, jon.grimm@....com,
	bharata@....com, raghavendra.kt@....com, boris.ostrovsky@...cle.com,
	konrad.wilk@...cle.com, jgross@...e.com, andrew.cooper3@...rix.com,
	Joel Fernandes <joel@...lfernandes.org>,
	Vineeth Pillai <vineethrp@...gle.com>,
	Suleiman Souhlal <suleiman@...gle.com>,
	Ingo Molnar <mingo@...nel.org>,
	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
	Clark Williams <clark.williams@...il.com>, bigeasy@...utronix.de,
	daniel.wagner@...e.com, joseph.salisbury@...cle.com,
	broonie@...il.com
Subject: Re: [RFC][PATCH 1/2] sched: Extended scheduler time slice

On Sat, Feb 01, 2025 at 07:47:32AM -0500, Steven Rostedt wrote:
> 
> 
> On February 1, 2025 6:59:06 AM EST, Peter Zijlstra <peterz@...radead.org> wrote:
> 
> >I still have full hate for this approach.
> 
> So what approach would you prefer?

The one that does not rely on the preemption method -- I think I posted
something along those line, and someone else recently reposted something
bsaed on it.

Tying things to the preemption method is absurdly bad design -- and I've
told you that before.

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