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Re: [Xen-users] Guest CentOS statistic

To: admin@xxxxxxxxxxxxxxxx
Subject: Re: [Xen-users] Guest CentOS statistic
From: "Fajar A. Nugraha" <fajar@xxxxxxxxx>
Date: Fri, 13 Aug 2010 15:36:50 +0700
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On Fri, Aug 13, 2010 at 3:24 PM, masterito <admin@xxxxxxxxxxxxxxxx> wrote:

I has xen virtual machine in paravirtualisation. Host and guest sysstems
are CentOS. When I use top in guest machine I see, that system use 20%
resourses. But in host machine I see, that machine use 50% resourses.
In config machine has 5 processors, and has cpu_cap 352. Processor is
2266MHz. Therefor for statistic in guest machine it use ~ 2266 MHz(1
processor), and for Xen hypervisor - 4000 MHz.
Can somebody ask how it happens?

In general, dom0's cpu load is not directly related domU's cpu usage. Note however that domU's I/O operation will increase dom0's CPU utilization.

Use "xm top" to find out how much resource each dom0/domU uses.

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