Hi,
Even I am facing the same problem. Irrespective of how much I/O I am doing
from the guest OS, xenmon iocount shows 0 always. Were you able to figure
out why this happens?
Please throw some light on this.
Thank you.
Warm Regards
Ananth
On Sun, May 3, 2009 at 2:38 AM, Jia Rao <rickenrao@gmail.com> wrote:
> Hi all,
>
> I just tried to use xenmon to monitor VMs in a Xen platform.
>
> It is strange that the io_count reported by xenmon is always zero for all
> the domains (including dom0). I ran network intensive as well as disk
> intensive I/O workloads. Xenmon reports nothing about the I/O event.
>
> The page transfer is always zero, but the page map and unmap have values.
> Does xen still transfer data from dom0 from/to domu for I/O request? or all
> the data "transfer" is based on grant table map/unmap?
>
> Best regards,
> Jia.
>
> FYI:
> xen 3.3 (PV)
> CentOS Linux 2.6.18-3 for dom0 and domU
> Intel Xeon two 4-core
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xensource.com
> http://lists.xensource.com/xen-devel
>
>
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