Re: [Xen-devel] Network performance in Xen 3.0.3

[Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>]

On Tue, Oct 09, 2007 at 11:34:09PM +0530, pradeep singh rautela wrote:
>
> http://www.cse.psu.edu/~bhuvan/teaching/spring06/papers/xen-net-opt.pdf

Seems to be based on Xen 2.0, right?

In that case my original comment applies.

> > If it's talking about Xen 3.0.2 or earlier then the problem is
> > already solved as 3.0.3 and later versions use TSO between domU
> > an dom0 to drastically reduce the cost of virtualisation.

> Herbert, can you let us know how does domU network performance fares
> with the native stack performance w.r.t PV and HVM guests both.
> Couldn't find some concrete information on these number sadly.

Pure HVM drivers are still as bad as they ever were.  However,
PV-on-HVM drivers lets you get similar performance to PV drivers
in an HVM domain.


Cheers,
-- 
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Email: Herbert Xu ~{PmV>HI~} <herbert@xxxxxxxxxxxxxxxxxxx>
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