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

To:	"Herbert Xu" <herbert@xxxxxxxxxxxxxxxxxxx>
Subject:	Re: [Xen-devel] Network performance in Xen 3.0.3
From:	"pradeep singh rautela" <rautelap@xxxxxxxxx>
Date:	Wed, 10 Oct 2007 09:01:23 +0530
Cc:	阿淳 <m9429015@xxxxxxxxxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx
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On 10/10/07, Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> wrote:
> 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?

Yes, i missed that part earlier i guess.

> 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.

Thanks for the info Herbet.

Cheers,
--
pradeep singh rautela

"question = ( to ) ? be : ! be;"
                -- Wm. Shakespeare

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