Re: [PATCH, 2.6.9] improved load_balance() tolerance for pinned tasks

[Nick Piggin]

John Hawkes wrote:
> From: "John Hawkes" <hawkes@xxxxxxxxxxxxxxxxxxx>
>
> > No, your variation doesn't solve the problem.  This variation of your
> > patch does, however, solve the problem.  The difference is in
> > move_tasks():
>
>
> Actually, there is another related problem that arises in
> active_load_balance() with a runqueue that holds hundreds of pinned processes.
> I'm seeing a migration_thread perpetually consuming 70% of its CPU.

That's what I was worried about, but in your most recent
patch you just sent, the all_pinned path should skip over
the active load balance completely... basically it shouldn't
be running at all, and if it is then it is a bug I think?
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