On Mon, 2005年01月24日 at 11:52, Jared Rhine wrote:
> Ronald> The issue is that, in any large scale cluster, if you have
> Ronald> enough processes running besides your application on the
> Ronald> nodes, then the act of scheduling those processes -- even
> Ronald> for select calls that return instantly
> Ronald> -- can derange the application performance.
This is why schedulers have priority. Just bump up the priority of your
desired app. Also, with the Linux O(1) scheduler, a process blocked on
I/O (at least, by my understanding) should have no impact on other
processes scheduling.
-- 
Anthony Liguori
Linux Technology Center (LTC) - IBM Austin
E-mail: aliguori@xxxxxxxxxx
Phone: (512) 838-1208
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