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From: Peter Zijlstra <peterz@infradead.org>
To: Jason Low <jason.low2@hp.com>
Cc: mingo@kernel.org, linux-kernel@vger.kernel.org,
	daniel.lezcano@linaro.org, alex.shi@linaro.org,
	preeti@linux.vnet.ibm.com, efault@gmx.de,
	vincent.guittot@linaro.org, morten.rasmussen@arm.com,
	aswin@hp.com, chegu_vinod@hp.com
Subject: Re: [PATCH 3/3] sched, fair: Stop searching for tasks in newidle balance if there are runnable tasks
Date: Thu, 24 Apr 2014 18:54:03 +0200	[thread overview]
Message-ID: <20140424165403.GY11096@twins.programming.kicks-ass.net> (raw)
In-Reply-To: <1398357789.3509.6.camel@j-VirtualBox>

On Thu, Apr 24, 2014 at 09:43:09AM -0700, Jason Low wrote:
> I recall seeing somewhere around a +7% performance improvement
> in at least least 1 of the AIM7 workloads. I can do some more testing
> with this.

But yeah, please test more than 1 workload; its fairly typical for one
workload to win and another to completely tank :-/

  parent reply	other threads:[~2014-04-24 16:54 UTC|newest]

Thread overview: 45+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-04-24  1:30 [PATCH 0/3] sched: Idle balance patches Jason Low
2014-04-24  1:30 ` [PATCH 1/3] sched, balancing: Update rq->max_idle_balance_cost whenever newidle balance is attempted Jason Low
2014-04-24 10:14   ` Preeti U Murthy
2014-04-24 12:04     ` Peter Zijlstra
2014-04-24 12:44       ` Peter Zijlstra
2014-04-24 16:53         ` Jason Low
2014-04-24 17:14           ` Peter Zijlstra
2014-04-24 17:29             ` Peter Zijlstra
2014-04-24 22:18             ` Jason Low
2014-04-25  5:12               ` Preeti U Murthy
2014-04-25  7:13                 ` Jason Low
2014-04-25  7:58                   ` Mike Galbraith
2014-04-25 17:03                     ` Jason Low
2014-04-25  5:08             ` Preeti U Murthy
2014-04-25  9:43               ` Peter Zijlstra
2014-04-25 19:54                 ` Jason Low
2014-04-26 14:50                   ` Peter Zijlstra
2014-04-28 16:42                     ` Jason Low
2014-04-27  8:31                   ` Preeti Murthy
2014-04-28  9:24                     ` Peter Zijlstra
2014-04-29  3:10                       ` Preeti U Murthy
2014-04-28 18:04                     ` Jason Low
2014-04-29  3:52                       ` Preeti U Murthy
2014-04-24  1:30 ` [PATCH 2/3] sched: Initialize newidle balance stats in sd_numa_init() Jason Low
2014-04-24 12:18   ` Peter Zijlstra
2014-04-25  5:57   ` Preeti U Murthy
2014-05-08 10:42   ` [tip:sched/core] sched/numa: " tip-bot for Jason Low
2014-04-24  1:30 ` [PATCH 3/3] sched, fair: Stop searching for tasks in newidle balance if there are runnable tasks Jason Low
2014-04-24  2:51   ` Mike Galbraith
2014-04-24  8:28     ` Mike Galbraith
2014-04-24 16:37     ` Jason Low
2014-04-24 19:07       ` Mike Galbraith
2014-04-24  7:15   ` Peter Zijlstra
2014-04-24 16:43     ` Jason Low
2014-04-24 16:52       ` Peter Zijlstra
2014-04-25  1:24         ` Jason Low
2014-04-25  2:45         ` Mike Galbraith
2014-04-25  3:33           ` Jason Low
2014-04-25  5:46             ` Mike Galbraith
2014-04-24 16:54       ` Peter Zijlstra [this message]
2014-04-24 10:30   ` Morten Rasmussen
2014-04-24 11:32     ` Peter Zijlstra
2014-04-24 14:08       ` Morten Rasmussen
2014-04-24 14:59         ` Peter Zijlstra
2014-05-08 10:44   ` [tip:sched/core] sched/fair: " tip-bot for Jason Low

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