Messages in this thread | | | Date | Wed, 21 May 2003 20:38:56 -0400 (EDT) | From | Rik van Riel <> | Subject | Re: web page on O(1) scheduler |
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On Wed, 21 May 2003, Mike Galbraith wrote: > At 11:49 PM 5/20/2003 -0700, David Mosberger wrote: > >Recently, I started to look into some odd performance behaviors of the > >O(1) scheduler. I decided to document what I found in a web page > >at: > > > > http://www.hpl.hp.com/research/linux/kernel/o1.php > > The page mentions persistent starvation. My own explorations of this > issue indicate that the primary source is always selecting the highest > priority queue.
It's deeper than that. The O(1) scheduler doesn't consider actual CPU usage as a factor of CPU priority.
Rik -- Engineers don't grow up, they grow sideways. http://www.surriel.com/ http://kernelnewbies.org/ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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