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

From: Peter Zijlstra
Date: Tue Feb 12 2013 - 05:26:31 EST


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..

PJT is something more fundamental screwy?

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