Re: [PATCH] scheduler patch, faster still

Rik van Riel (H.H.vanRiel@phys.uu.nl)
Tue, 29 Sep 1998 11:19:09 +0200 (CEST)

On Mon, 28 Sep 1998, Justin A. Kolodziej wrote:
> Steve VanDevender wrote:
> >
> > Oh please. Having read quite a bit of this debate, I'm much more
> > supportive of Larry's point of view than Richard's.
> As am I. Being one of the people who is IMHO one of the closest to
> being Joe Blow User on this thread, I think that Mr. Gooch's results are
> almost completely irrelevant to a plain old user. I cannot think of one
> application that would be found in the typical office at present that
> actually would need real-time scheduling.

Just because you can't imagine the application that doesn't
mean that Richard doesn't have one at hand :)

Apart from that, I don't see any problems with visualizing
such an app as well (or at least a normal RT app which got
in trouble because of an overloaded rest-of-the-system).

> Also, as far as I can tell it would take a major rewrite of the
> scheduler to implement a second run queue.

It wouldn't. It would involve copying a bit of existing code
to make an RT path and then chainsawing the RT additions from
the normal code path. It's an absolutely trivial change.

Rik.
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