netdev - Re: [Xen-devel] [RFC PATCH 00/13] Persistent grant maps for xen net drivers

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Message-ID: <55532C86.8020409@citrix.com>
Date:	Wed, 13 May 2015 11:50:46 +0100
From:	David Vrabel <david.vrabel@...rix.com>
To:	Joao Martins <joao.martins@...lab.eu>,
	<xen-devel@...ts.xenproject.org>, <netdev@...r.kernel.org>
CC:	<wei.liu2@...rix.com>, <ian.campbell@...rix.com>,
	<david.vrabel@...rix.com>, <boris.ostrovsky@...cle.com>
Subject: Re: [Xen-devel] [RFC PATCH 00/13] Persistent grant maps for xen net
 drivers

On 12/05/15 18:18, Joao Martins wrote:
> 
> Packet I/O Tests:
> 
> Measured on a Intel Xeon E5-1650 v2, Xen 4.5, no HT. Used pktgen "burst 1"
> and "clone_skbs 100000" (to avoid alloc skb overheads) with various pkt
> sizes. All tests are DomU <-> Dom0, unless specified otherwise.

Are all these measurements with a single domU with a single VIF?

The biggest problem with a persistent grant method is the amount of
grant table and maptrack resources it requires.  How well does this
scale to 1000s of VIFs?

David
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