From: Mike Galbraith <umgwanakikbuti@gmail.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: mingo@kernel.org, linux-kernel@vger.kernel.org,
Pavan Kondeti <pkondeti@codeaurora.org>,
Ben Segall <bsegall@google.com>,
Matt Fleming <matt@codeblueprint.co.uk>,
Morten Rasmussen <morten.rasmussen@arm.com>,
Paul Turner <pjt@google.com>,
Thomas Gleixner <tglx@linutronix.de>,
byungchul.park@lge.com, Andrew Hunter <ahh@google.com>
Subject: Re: [patch] sched/fair: Move se->vruntime normalization state into struct sched_entity
Date: Sun, 22 May 2016 11:52:40 +0200 [thread overview]
Message-ID: <1463910760.3698.3.camel@gmail.com> (raw)
In-Reply-To: <20160522093638.GL3193@twins.programming.kicks-ass.net>
On Sun, 2016-05-22 at 11:36 +0200, Peter Zijlstra wrote:
> On Sun, May 22, 2016 at 09:00:01AM +0200, Mike Galbraith wrote:
> > On Sat, 2016-05-21 at 21:00 +0200, Mike Galbraith wrote:
> > > On Sat, 2016-05-21 at 16:04 +0200, Mike Galbraith wrote:
> > >
> > > > Wakees that were not migrated/normalized eat an unwanted min_vruntime,
> > > > and likely take a size XXL latency hit. Big box running master bled
> > > > profusely under heavy load until I turned TTWU_QUEUE off.
> >
> > May as well make it official and against master.today. Fly or die
> > little patchlet.
> >
> > sched/fair: Move se->vruntime normalization state into struct sched_entity
>
> Yeah, I used to have a patch like this; but for debugging. I don't
> particularly like carrying this information other than for verification
> because it means we either do too much or too little normalization.
>
> I'll try and have a look on Monday, but I got some real-life things to
> sort out first..
Ok (flush, say hi to the goldfish little patchlet). I don't care how it
gets fixed, only that it does, and yours will likely be prettier :)
-Mike
next prev parent reply other threads:[~2016-05-22 9:52 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-10 17:43 [PATCH 0/3] sched: Fix wakeup preemption regression Peter Zijlstra
2016-05-10 17:43 ` [PATCH 1/3] sched,fair: Move record_wakee() Peter Zijlstra
2016-05-12 10:27 ` Matt Fleming
2016-05-12 10:31 ` Peter Zijlstra
2016-05-10 17:43 ` [PATCH 2/3] sched,fair: Fix local starvation Peter Zijlstra
2016-05-10 20:21 ` Ingo Molnar
2016-05-10 22:23 ` Peter Zijlstra
2016-05-20 21:24 ` Matt Fleming
2016-05-21 14:04 ` Mike Galbraith
2016-05-21 19:00 ` Mike Galbraith
2016-05-22 7:00 ` [patch] sched/fair: Move se->vruntime normalization state into struct sched_entity Mike Galbraith
2016-05-22 9:36 ` Peter Zijlstra
2016-05-22 9:52 ` Mike Galbraith [this message]
2016-05-22 10:33 ` Peter Zijlstra
2016-05-23 9:19 ` Peter Zijlstra
2016-05-23 9:40 ` Mike Galbraith
2016-05-23 10:13 ` Wanpeng Li
2016-05-23 10:26 ` Mike Galbraith
2016-05-23 12:28 ` Peter Zijlstra
2016-05-25 7:12 ` [tip:sched/urgent] sched/core: Fix remote wakeups tip-bot for Peter Zijlstra
2016-05-22 6:50 ` [PATCH 2/3] sched,fair: Fix local starvation Wanpeng Li
2016-05-22 7:15 ` Mike Galbraith
2016-05-22 7:27 ` Wanpeng Li
2016-05-22 7:32 ` Mike Galbraith
2016-05-22 7:42 ` Wanpeng Li
2016-05-22 8:04 ` Mike Galbraith
2016-05-22 8:24 ` Wanpeng Li
2016-05-22 8:39 ` Mike Galbraith
2016-05-22 8:50 ` Wanpeng Li
2016-05-10 17:43 ` [PATCH 3/3] sched: Kill sched_class::task_waking Peter Zijlstra
2016-05-11 5:55 ` [PATCH 0/3] sched: Fix wakeup preemption regression Mike Galbraith
2016-05-12 9:56 ` Pavan Kondeti
2016-05-12 10:52 ` Matt Fleming
2016-05-24 17:04 [patch] sched/fair: Move se->vruntime normalization state into struct sched_entity Paul E. McKenney
2016-05-25 17:49 ` Paul E. McKenney
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