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Date:	Tue, 07 May 2013 10:19:47 +0800
From:	Alex Shi <>
To:	Alex Shi <>
Subject: Re: [PATCH v5 3/7] sched: set initial value of runnable avg for new
 forked task

On 05/06/2013 09:45 AM, Alex Shi wrote:
> We need initialize the se.avg.{decay_count, load_avg_contrib} for a
> new forked task.
> Otherwise random values of above variables cause mess when do new task
> enqueue:
>     enqueue_task_fair
>         enqueue_entity
>             enqueue_entity_load_avg
> and make forking balancing imbalance since incorrect load_avg_contrib.
> set avg.decay_count = 0, and avg.load_avg_contrib = se->load.weight to
> resolve such issues.
> Signed-off-by: Alex Shi <>

Sorry for forget this:

Acked-by: Peter Zijlstra <>
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