Xen users - May 2012 - How to increase Xen guest CPU utilization?

Hi,

I am trying to build a Gentoo system in my Xen guest. I build the basic of
my guest using the chroot method, the old fashion way. Then I boot my guest
in PV, using the same pvops kernel as my dom0 use. After the guest is boot,
I tried to emerge other packages. But I am observing very slow building
process, and very low CPU utilization.

I think there''s something wrong with my xen guest configuration that it
cannot make good use of my CPU.


-- 
Regards，
David Shen

http://about.me/davidshen
https://twitter.com/#!/davidshen84


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On Wed, May 2, 2012 at 9:24 AM, Xi Shen <davidshen84@gmail.com>
wrote:
> Hi,
>
> I am trying to build a Gentoo system in my Xen guest. I build the basic of
> my guest using the chroot method, the old fashion way. Then I boot my guest
> in PV, using the same pvops kernel as my dom0 use. After the guest is boot,
> I tried to emerge other packages. But I am observing very slow building
> process, and very low CPU utilization.
>
> I think there''s something wrong with my xen guest configuration
that it
> cannot make good use of my CPU.
Try running "iostat -mx 3" on your domU. My guess is that
you''re
disk-I/O-starved.

If that''s true, and you''re using file-based disk backend. try
using
block device.

-- 
Fajar