From: Peter Zijlstra <peterz@infradead.org>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: bigeasy@linutronix.de, mingo@kernel.org,
linux-kernel@vger.kernel.org, juri.lelli@redhat.com,
vincent.guittot@linaro.org, dietmar.eggemann@arm.com,
rostedt@goodmis.org, bsegall@google.com, mgorman@suse.de,
vschneid@redhat.com, ankur.a.arora@oracle.com, efault@gmx.de
Subject: Re: [PATCH 5/5] sched: Add laziest preempt model
Date: Tue, 8 Oct 2024 16:40:49 +0200 [thread overview]
Message-ID: <20241008144049.GF14587@noisy.programming.kicks-ass.net> (raw)
In-Reply-To: <87ed4qu107.ffs@tglx>
On Tue, Oct 08, 2024 at 04:23:36PM +0200, Thomas Gleixner wrote:
> On Mon, Oct 07 2024 at 09:46, Peter Zijlstra wrote:
> > Much like LAZY, except lazier still. It will not promote LAZY to full
> > preempt on tick and compete with None for suckage.
> >
> > (do we really wants this?)
>
> Just to prove how bad NONE is without cond_resched() ?
>
> I'm sure we can do without that experiment.
There's a reason this is the very last patch :-)
next prev parent reply other threads:[~2024-10-08 14:40 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-07 7:46 [PATCH 0/5] sched: Lazy preemption muck Peter Zijlstra
2024-10-07 7:46 ` [PATCH 1/5] sched: Add TIF_NEED_RESCHED_LAZY infrastructure Peter Zijlstra
2024-10-09 12:18 ` Sebastian Andrzej Siewior
2024-10-09 13:01 ` Peter Zijlstra
2024-11-06 10:48 ` [tip: sched/core] " tip-bot2 for Peter Zijlstra
2024-10-07 7:46 ` [PATCH 2/5] sched: Add Lazy preemption model Peter Zijlstra
2024-10-08 5:43 ` Ankur Arora
2024-10-08 14:48 ` Peter Zijlstra
2024-10-09 8:50 ` Sebastian Andrzej Siewior
2024-10-09 9:14 ` Peter Zijlstra
2024-10-09 9:19 ` Sebastian Andrzej Siewior
2024-10-15 14:37 ` Shrikanth Hegde
2024-10-25 10:42 ` Sebastian Andrzej Siewior
2024-10-22 16:44 ` Shrikanth Hegde
2024-10-25 13:19 ` Sebastian Andrzej Siewior
2024-10-29 18:57 ` Shrikanth Hegde
2024-11-06 10:48 ` [tip: sched/core] " tip-bot2 for Peter Zijlstra
2024-10-07 7:46 ` [PATCH 3/5] sched: Enable PREEMPT_DYNAMIC for PREEMPT_RT Peter Zijlstra
2024-10-08 13:24 ` Sebastian Andrzej Siewior
2024-10-08 14:40 ` Peter Zijlstra
2024-10-10 6:52 ` Christoph Hellwig
2024-10-10 7:50 ` Peter Zijlstra
2024-11-06 10:48 ` [tip: sched/core] " tip-bot2 for Peter Zijlstra
2024-10-07 7:46 ` [PATCH 4/5] sched, x86: Enable Lazy preemption Peter Zijlstra
2024-11-06 10:48 ` [tip: sched/core] " tip-bot2 for Peter Zijlstra
2024-10-07 7:46 ` [PATCH 5/5] sched: Add laziest preempt model Peter Zijlstra
2024-10-08 5:59 ` Ankur Arora
2024-10-08 14:23 ` Thomas Gleixner
2024-10-08 14:40 ` Peter Zijlstra [this message]
2024-10-08 15:07 ` Sebastian Andrzej Siewior
2024-10-07 8:33 ` [PATCH 0/5] sched: Lazy preemption muck Sebastian Andrzej Siewior
2024-10-08 4:58 ` Mike Galbraith
2024-10-08 15:32 ` Sebastian Andrzej Siewior
2024-10-09 4:40 ` Ankur Arora
2024-10-09 6:20 ` Sebastian Andrzej Siewior
2024-10-09 7:23 ` Ankur Arora
2024-10-09 8:02 ` Peter Zijlstra
2024-10-09 8:45 ` Sebastian Andrzej Siewior
2024-10-09 14:01 ` Steven Rostedt
2024-10-09 20:13 ` Thomas Gleixner
2024-10-09 20:43 ` Steven Rostedt
2024-10-09 21:06 ` Thomas Gleixner
2024-10-09 21:19 ` Steven Rostedt
2024-10-09 23:16 ` Thomas Gleixner
2024-10-09 23:29 ` Steven Rostedt
2024-10-10 1:20 ` Thomas Gleixner
2024-10-10 10:23 ` David Laight
2024-10-13 19:02 ` Thomas Gleixner
2024-10-14 8:21 ` David Laight
2024-10-10 3:12 ` Tianchen Ding
2024-10-10 7:47 ` Thomas Gleixner
2024-10-09 7:30 ` Ankur Arora
2024-10-09 7:46 ` Peter Zijlstra
2024-10-09 11:07 ` Sebastian Andrzej Siewior
2024-10-17 12:36 ` Mike Galbraith
2024-11-07 17:21 ` Thomas Meyer
2024-11-08 0:59 ` Mike Galbraith
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