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-users

Re: [Xen-users] understanding xm top

To: "Liang Yang" <multisyncfe991@xxxxxxxxxxx>
Subject: Re: [Xen-users] understanding xm top
From: "Tommie McAfee" <tahmmee@xxxxxxxxx>
Date: Wed, 15 Nov 2006 14:53:42 -0500
Cc: john maclean <jayeola@xxxxxxxxx>, Xen Users <xen-users@xxxxxxxxxxxxxxxxxxx>
Delivery-date: Wed, 15 Nov 2006 11:54:29 -0800
Domainkey-signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:references; b=r3ZFMYDwvYqOy58zK471Zf1mfJ4eUKNgqXolYolHCsuscBDd2bixKxLMF9CASYCbhi7DGrmofibEsZzjb+6R0Jmi0aUZFTvbd3451CmorK4HkC3edfxrrDNmddHjDj9ZKqk2DJjO0zx5zKuXw2eLFjy6TOfWyih9Ge+ye7TYhXE=
Envelope-to: www-data@xxxxxxxxxxxxxxxxxx
In-reply-to: <BAY125-DAV19BC5A1CF538EF8921841D93EA0@xxxxxxx>
List-help: <mailto:xen-users-request@lists.xensource.com?subject=help>
List-id: Xen user discussion <xen-users.lists.xensource.com>
List-post: <mailto:xen-users@lists.xensource.com>
List-subscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-users>, <mailto:xen-users-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-users>, <mailto:xen-users-request@lists.xensource.com?subject=unsubscribe>
References: <4170c1720611111024r55ba6449p3bdc1ce75b010961@xxxxxxxxxxxxxx> <c020e48c0611150728iab03657t85f94ea2bd6d6461@xxxxxxxxxxxxxx> <BAY125-DAV19BC5A1CF538EF8921841D93EA0@xxxxxxx>
Sender: xen-users-bounces@xxxxxxxxxxxxxxxxxxx

 If xm top shows 10% CPU utilization for domain0, it means the CPU utilization in domain0 is 10% of FOUR physcial CPUs. Is this right?


I  don't think the values scale that way percentage wise, because with 4 physical cpu's, xm-top can show CPU(%) to be as high as 400%.  Unlike the native Linux top command where the scale is 0-100%, if you have 4 cpu's and xm top shows 100% it doesn't mean that your using 100% of 4 physical cpu's (all your processing power), but perhaps 1/4 of your 4 CPU's. 

try doing a 'xm top', and type 'v' on the console window, this should give you a per-cpu break down of each domain,

hope that helps,


--
a.out
_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users