Re: [PATCH] Make highly niced processes run only when idle

Pavel Machek
2001-12-19T20:15:10Z

Hi!

> > Please don't. Whenever you think you priority inheritance, it's a sign your
> > system has got too complicated. The simplest solution is to simply have no
> > priorities when a task is in-kernel (or at least non that can completely
> > exclude a task).
>
> I agree, I said it was overkill.
>
> My solution is going to be to schedule the task as a SCHED_OTHER task
> when in the kernel, and as SCHED_IDLE task otherwise.

Yep, and you can do it without making syscalls any slower, and patch
was already on l-k.

Use ptrace-hooks for branching into your priority-promoting code, and
you'll have 0 impact on fast path.

Pavel
--
"I do not steal MS software. It is not worth it."
-- Pavel Kankovsky