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Date: Sun, 22 May 2016 11:36:38 +0200 From: Peter Zijlstra <peterz@...radead.org> To: Mike Galbraith <umgwanakikbuti@...il.com> Cc: mingo@...nel.org, linux-kernel@...r.kernel.org, Pavan Kondeti <pkondeti@...eaurora.org>, Ben Segall <bsegall@...gle.com>, Matt Fleming <matt@...eblueprint.co.uk>, Morten Rasmussen <morten.rasmussen@....com>, Paul Turner <pjt@...gle.com>, Thomas Gleixner <tglx@...utronix.de>, byungchul.park@....com, Andrew Hunter <ahh@...gle.com> Subject: Re: [patch] sched/fair: Move se->vruntime normalization state into struct sched_entity 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..
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