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Re: [Xen-users] Why the data got from "top" and "xentop" are different?
| To: | 徐飞 <kudofaye@xxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-users] Why the data got from "top" and "xentop" are different? |
| From: | Todd Deshane <todd.deshane@xxxxxxx> |
| Date: | Wed, 31 Aug 2011 00:33:56 -0400 |
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| Delivery-date: | Tue, 30 Aug 2011 21:35:00 -0700 |
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On Tue, Aug 30, 2011 at 9:14 AM, 徐飞 <kudofaye@xxxxxxxxx> wrote: > Hi All, > > I'm a beginner in Xen. Recently I've configured one VM (vm03) hosted in my > physical machine. I ran the "netperf" workload in the vm01, and used the > "top" command in the vm03 to test the behavior of the running workload. > Meanwhile, I also used the "xentop" command in domain0 to see the resource > consumption in vm03. Interestingly, I found that the CPU usage data is > extremely different with each other. The CPU usage data in "xentop" was > 13.6%, while in "top" the data was only 1.0%. > > So why does this happen? > This is a common question: http://lists.xensource.com/archives/html/xen-users/2008-10/msg00415.html You may want to look into the profile tools for Xen if you need better granularity. See for example: http://xenoprof.sourceforge.net/ Hope that helps. Thanks, Todd -- Todd Deshane http://www.linkedin.com/in/deshantm http://www.xen.org/products/cloudxen.html http://runningxen.com/ _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users |
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