[Fedora-xen] Fedora's Xen Compared to XenExpress

[Daniel P. Berrange]

On Tue, Nov 13, 2007 at 11:50:32AM +0000, Richard W.M. Jones wrote:
> thewird wrote:
> >--- "Richard W.M. Jones" <rjones at redhat.com> wrote:
> >>Mathew Brown wrote:
> >>>Hi,
> >>>  I was wondering what the differences between Fedora 8's Xen and
> >>>  XenExpress v4 are (besides the limits of 4GB or RAM and four
> >>virtual
> >>>  hosts).  Is the functionality and stability the same or is
> >>Fedora's
> >>>  Xen more cutting-edge?  Thank you for your help.
> >>I'm not very familiar with XenExpress, but I'm fairly sure that the 
> >>management software used by XE is some proprietary code.  Fedora uses
> >>
> >>libvirt and virt-manager for management, has no artificial
> >>limitations 
> >>on memory, CPUs, guests etc., and is completely open source.
> >
> >Does Fedora 8 have any way to limit the network speed on the guests?
> 
> I assume, though I've not tried it, that you should be able to use 
> ordinary Linux mechanisms such as the 'tc(8)' command to enforce a 
> traffic control and shaping on the vifX.0 devices.

Yes, if you modified the '/etc/xen/scripts/vif-bridge' script you
could make it run 'tc' against the vifX.0 devices when bringing up
a guest to give it a fixed data limit.

Dan.
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