WARNING - OLD ARCHIVES

This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
   
 
 
Xen 
 
Home Products Support Community News
 
   
 

xen-devel

Re: [Xen-devel] Re: VT is comically slow

To: Anthony Liguori <anthony@xxxxxxxxxxxxx>
Subject: Re: [Xen-devel] Re: VT is comically slow
From: Rik van Riel <riel@xxxxxxxxxx>
Date: Thu, 06 Jul 2006 21:49:58 -0400
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
Delivery-date: Thu, 06 Jul 2006 18:50:59 -0700
Envelope-to: www-data@xxxxxxxxxxxxxxxxxx
In-reply-to: <pan.2006.07.06.20.59.37.33622@xxxxxxxxxxxxx>
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: <20060706191618.3CCF02F9B5@xxxxxxxxxxxxxxxxxxxxxx> <pan.2006.07.06.20.59.37.33622@xxxxxxxxxxxxx>
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
User-agent: Thunderbird 1.5.0.4 (X11/20060614)
Anthony Liguori wrote:

I don't think paravirtual drivers are necessary for good performance.

I think that the same applies to network IO but I'm not qualified to
comment on what things are important there.

Especially if we emulate a network card that does checksumming
"in hardware" and knows how to do zero-copy sending...

--
"Debugging is twice as hard as writing the code in the first place.
Therefore, if you write the code as cleverly as possible, you are,
by definition, not smart enough to debug it." - Brian W. Kernighan

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

<Prev in Thread] Current Thread [Next in Thread>