Re: [Xen-devel] [PATCH] xenctld - a control channel multiplexing daemon

[Anthony Liguori <aliguori@xxxxxxxxxx>]

On Mon, 2005-01-24 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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