On Wed, 2006-07-05 at 23:59 +1000, Peter Williams wrote:
> Mike Galbraith wrote:
> > The task in the expired array could also be a !safe_to_background() task
> > who already had a chance to run, and who's slice expired.
>
> If it's !safe_to_background() it's in our interest to let it run in
> order to free up the resource that it's holding.
Only if there are waiters (or you know there will be some before the
holder gets a chance to run again). Even then, they might be background
tasks, so it could still be ~wrong.
(yeah, comprehensive PI would be mucho tidier than tick time)
-Mike
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