linux-kernel - Re: [patch v7 0/8] sched: using runnable load avg in balance

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Date:	Mon, 03 Jun 2013 14:43:56 +0800
From:	Alex Shi <alex.shi@...el.com>
To:	Alex Shi <alex.shi@...el.com>
CC:	mingo@...hat.com, peterz@...radead.org, tglx@...utronix.de,
	akpm@...ux-foundation.org, bp@...en8.de, pjt@...gle.com,
	namhyung@...nel.org, efault@....de, morten.rasmussen@....com,
	vincent.guittot@...aro.org, preeti@...ux.vnet.ibm.com,
	viresh.kumar@...aro.org, linux-kernel@...r.kernel.org,
	mgorman@...e.de, riel@...hat.com, wangyun@...ux.vnet.ibm.com,
	Jason Low <jason.low2@...com>,
	Changlong Xie <changlongx.xie@...el.com>
Subject: Re: [patch v7 0/8] sched: using runnable load avg in balance

On 05/30/2013 03:01 PM, Alex Shi wrote:
> Anyway, since using runnable load avg in balance brings much benefit on
> performance and power. and this patch was reviewed for long time. 
> So maybe it's time to let it clobbered in some sub-maintain tree, like tip 
> or linux-next.  Any comments?
> 

Peter,
What's your opinion about this patchset? Are there sth missing? :)


The patchset git tree is here:
git@...hub.com:alexshi/power-scheduling.git runnablelb

> [patch v7 1/8] Revert "sched: Introduce temporary FAIR_GROUP_SCHED
> [patch v7 2/8] sched: move few runnable tg variables into CONFIG_SMP
> [patch v7 3/8] sched: set initial value of runnable avg for new
> [patch v7 4/8] sched: fix slept time double counting in enqueue
> [patch v7 5/8] sched: update cpu load after task_tick.

Patch 2~5 are the bug fixing.
> [patch v7 6/8] sched: compute runnable load avg in cpu_load and
> [patch v7 7/8] sched: consider runnable load average in move_tasks

Only patch 6th/7th enable the runnable load in load balance.
> [patch v7 8/8] sched: remove blocked_load_avg in tg

According to test, the 8th patch has performance gain.

-- 
Thanks
    Alex
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