re: scheduling

Andrew J. Anderson (
Fri, 1 May 1998 10:14:48 -0400 (EDT)

> Perhaps we could have 3 levels of the "QNX scheduler" and run
> the normal timesharing scheduler within each of those. If there
> isn't a standard name for it already, I suggest "priority bands".

I have been working on a feedback multilevel scheduler with 40 levels to
make it easier to incorporate with the kernel and user utilities. I
haven't touched it for a while, but it was starting to work, but kept
running into problems remoing things from the run queue. I had ambitions
at one time of making it a tunable scheduler, but I'm still focusing on
stability for now. I can probably generate some patches against 2.0.33 if
there's interest.

Andrew Anderson

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