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Date: Fri, 5 Mar 2010 15:56:36 +0800
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Subject: sched_fair: the schedule check condition?
From: figo zhang <figo1802@gmail.com>
To: linux-kernel@vger.kernel.org
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hi,

in check_preempt_tick() funtion, the check schedule condition the
reality increasing runtime "delta_exec"
and vruntime increasing "delta", and reality ideal time "ideal_runtime":

            if (delta_exec > ideal_runtime)
and
            if (delta > ideal_runtime)

if equal,  it should be need schedule?

Best,
Figo.zhang