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From: Steve Muckle <steve.muckle@linaro.org>
To: Yuyang Du <yuyang.du@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>,
	Ingo Molnar <mingo@redhat.com>,
	Morten Rasmussen <morten.rasmussen@arm.com>,
	Dietmar Eggemann <dietmar.eggemann@arm.com>,
	Patrick Bellasi <patrick.bellasi@arm.com>,
	Juri Lelli <Juri.Lelli@arm.com>,
	Vincent Guittot <vincent.guittot@linaro.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: PELT initial task load and wake_up_new_task()
Date: Wed, 16 Dec 2015 18:50:43 -0800	[thread overview]
Message-ID: <56722303.4070208@linaro.org> (raw)
In-Reply-To: <20151215235556.GI28098@intel.com>

On 12/15/2015 03:55 PM, Yuyang Du wrote:
> Hope the following patch should work.

Thanks Yuyang. AFAICS it should work, though I believe the test on
last_update_time could instead go at the top of migrate_task_rq_fair()?
It'd save the fn call to remove_entity_load_avg() and two unnecessary
assignments (as p->se.avg.last_update_time and p->se.exec_start = 0 for
newly forked tasks). This worked for me.

thanks,
Steve

  parent reply	other threads:[~2015-12-17  2:50 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-12-12  2:01 PELT initial task load and wake_up_new_task() Steve Muckle
2015-12-13 19:13 ` Yuyang Du
2015-12-15  0:41   ` Steve Muckle
2015-12-15  2:24     ` Yuyang Du
2015-12-15 18:45       ` Steve Muckle
2015-12-15 23:55         ` Yuyang Du
2015-12-16  7:58           ` [PATCH] sched: Fix new task's load avg removed from source CPU in kbuild test robot
2015-12-17  2:50           ` Steve Muckle [this message]
2015-12-16 23:34             ` PELT initial task load and wake_up_new_task() Yuyang Du
2015-12-17  9:43               ` Peter Zijlstra
2015-12-17  2:16                 ` Yuyang Du
2016-01-06 18:49               ` [tip:sched/core] sched/fair: Fix new task' s load avg removed from source CPU in wake_up_new_task() tip-bot for Yuyang Du

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