Re: [patch v4 07/18] sched: set initial load avg of new forked task

From: Alex Shi
Date: Wed Feb 13 2013 - 10:15:29 EST


On 02/12/2013 06:26 PM, Peter Zijlstra wrote:
> On Thu, 2013-01-24 at 11:06 +0800, Alex Shi wrote:
>> + /*
>> + * set the initial load avg of new task same as its load
>> + * in order to avoid brust fork make few cpu too heavier
>> + */
>> + if (flags & ENQUEUE_NEWTASK)
>> + se->avg.load_avg_contrib = se->load.weight;
>
> I seem to have vague recollections of a discussion with pjt where we
> talk about the initial behaviour of tasks; from this haze I had the
> impression that new tasks should behave like full weight..
>

Here just make the new task has full weight..

> PJT is something more fundamental screwy?
>


--
Thanks
Alex
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