xen-devel

[Top] [All Lists]

RE: [Xen-devel] PCI-E networking

from [Ian Pratt]

[Permanent Link][Original]

To:	"Apparao, Padmashree K" <padmashree.k.apparao@xxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject:	RE: [Xen-devel] PCI-E networking
From:	"Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx>
Date:	Wed, 11 Oct 2006 10:28:30 +0100
Delivery-date:	Wed, 11 Oct 2006 02:28:56 -0700
Envelope-to:	www-data@xxxxxxxxxxxxxxxxxx
List-help:	<mailto:xen-devel-request@lists.xensource.com?subject=help>
List-id:	Xen developer discussion <xen-devel.lists.xensource.com>
List-post:	<mailto:xen-devel@lists.xensource.com>
List-subscribe:	<http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
List-unsubscribe:	<http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
References:	<B5677069E3D9994D9EE1C7295072EA960B392F49@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>
Sender:	xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
Thread-index:	Acbs/iB0xSvRNeDnTreWDHRbAMXFCgAGV08g
Thread-topic:	[Xen-devel] PCI-E networking

> I see a weird problem with networking under Xen. I am using 2 dual
ports
> PCI-e nics in my platform and a single PCI-X nic. Each PCI-E nic
shares an
> irq. Each port is on a different subnet.
>  
> In native linux I can get line rate in each port.
> 
> In Xen (custome xen-unstable)  however, a ping on each subnet is very
> slooow. A ping takes about 3000ms or even more.
> 
> In fact I downloaded the Xen 3.0.2-3 testing build of xen and I see
the
> problem there too. Has anyone seen this kind of behavior? Is this
related
> to the interrupt sharing of the ports?

Odd. First thing to try is switching to xen-unstable or 3.0.3-testing
there have been some interrupt changes, but still no MSI support, I'm
afraid.

Ian

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel

[More with this subject...]

<Prev in Thread]	Current Thread	[Next in Thread>
[Xen-devel] PCI-E networking, Apparao, Padmashree K RE: [Xen-devel] PCI-E networking, James Harper RE: [Xen-devel] PCI-E networking, Ian Pratt <= RE: [Xen-devel] PCI-E networking, Apparao, Padmashree K Re: [Xen-devel] PCI-E networking, Christopher G. Stach II

Previous by Date:	[Xen-devel] Re: [patch rfc 1/3] xen arch header rework., Gerd Hoffmann
Next by Date:	Re: [Xen-devel] [PATCH,RFC 0/17] 32-on-64 work progress, Keir Fraser
Previous by Thread:	RE: [Xen-devel] PCI-E networking, James Harper
Next by Thread:	RE: [Xen-devel] PCI-E networking, Apparao, Padmashree K
Indexes:	[Date] [Thread] [Top] [All Lists]