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xen-devel
Re: [Xen-devel] Trying to get HyperSCSI and Xen to work... ;-)
> On Thu, Oct 09, 2003 at 12:25:15AM +0100, Keir Fraser wrote:
> > A lot of the network control code (e.g., routing of packets) isn't
> > great. We want to rework it at some point in the near future -- adding
> > more flexible packet forwarding, filtering and rewriting. The code has
> > evolved into its current form rather than being cleanly designed :-(
>
> Are there any plans to add rate limiting of network packets per domain
> (in and out)? This seemed to be the only feature missing from Xen for
> use in a hostile shared hosting environment. I read it has a fair
> scheduler for packet traffic which is great. Being able to put a cap
> on the absolute traffic levels would be even better.
Absolutely.
Adding a simple per-domain leaky bucket rate control scheme is on
our TODO list. We implemented a very simple yet effective scheme
for something else a few years back, and is should do the job
fine. It's described in the following paper:
http://www.cl.cam.ac.uk/Research/SRG/netos/arsenic/gige.ps
Implementing it in Xen should be very straightforward.
Ian
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