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Re: [Xen-users] Question about CPU usage between xen domains
| To: | "Christopher Isip" <cmisip@xxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-users] Question about CPU usage between xen domains |
| From: | "Todd Deshane" <deshantm@xxxxxxxxx> |
| Date: | Mon, 26 May 2008 17:04:52 -0400 |
| Cc: | xen-users@xxxxxxxxxxxxxxxxxxx |
| Delivery-date: | Mon, 26 May 2008 14:05:35 -0700 |
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| Reply-to: | deshantm@xxxxxxxxx |
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Hi Chris, On Mon, May 26, 2008 at 8:59 AM, Christopher Isip <cmisip@xxxxxxxxx> wrote: > If one domain uses 100% cpu use as reported by top, will this bog the other > domains down? Or is cpu use "comparmentalized", and the domain which has > 100% cpu only uses 100% of its cpu slice? I am thinking of turning on > mythcommflag in a separate domU and I know it eats up all available cpu > resources. > Based on on experience [1], the other domU should see little or no degradation. Xen does a good job at isolating the guests from each other in general and does very well on in term of CPU scheduling. For more information on performance isolation of virtualization systems see the reference [1] Cheers, Todd [1] http://people.clarkson.edu/~jnm/publications/isolation_ExpCS_FINALSUBMISSION.pdf _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users |
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