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Date: Mon, 18 Feb 2008 17:25:13 +0200
From: Andriy Gapon <avg@icyb.net.ua>
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Subject: sched_ule: roundrobin_callout replacement ?
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I see that sched_4bsd has a NOP callout with a purpose of forcing a
context switch (via softclock), so that something like a preemption
could happen (e.g. for threads in a tight calculation loop).
What serves the similar purpose for sched_ule?
Or, how sched_ule deals with the issue without needing softclock's help?

-- 
Andriy Gapon