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] Question about hyper-threading of domains

To: xen-devel@xxxxxxxxxxxxxxxxxxx, Lars Roland <lroland@xxxxxxxxx>
Subject: Re: [Xen-devel] Question about hyper-threading of domains
From: Mark Williamson <mark.williamson@xxxxxxxxxxxx>
Date: Fri, 29 Apr 2005 23:58:39 +0100
Cc: Jacob Gorm Hansen <jacobg@xxxxxxx>
Delivery-date: Fri, 29 Apr 2005 22:58:59 +0000
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
In-reply-to: <4ad99e05050429125764ad281b@xxxxxxxxxxxxxx>
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: <42728E37.2000502@xxxxxxx> <4ad99e05050429125764ad281b@xxxxxxxxxxxxxx>
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
User-agent: KMail/1.8
> > 1) You don't have SMT (luckily, I have a bunch of machines like that
> > back home ;-)). Do the recent Opterons and Itaniums have SMT btw?
>
> No neither the latest Opterons nor the Itaniums have explicit SMT.

I don't think AMD has much interest in SMT for the foreseeable future - 
they're jumping straight to multicore.  Intel doesn't bother with HT on 
anything but the Pentium 4 because its pipeline is so much longer than 
anything else...

And the thought of implementing an SMT Itanium really scares me :-) (although 
I don't doubt they do consider it an option)

Cheers,
Mark

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

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