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/
Home Products Support Community News


Re: [Xen-devel] AW: Load increase after memory upgrade?

To: Carsten Schiers <carsten@xxxxxxxxxx>
Subject: Re: [Xen-devel] AW: Load increase after memory upgrade?
From: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
Date: Mon, 27 Jun 2011 09:46:43 -0400
Cc: xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
Delivery-date: Mon, 27 Jun 2011 07:47:30 -0700
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
In-reply-to: <2029813.131309174164862.JavaMail.root@uhura>
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/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
References: <2029813.131309174164862.JavaMail.root@uhura>
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
User-agent: Mutt/1.5.21 (2010-09-15)
On Mon, Jun 27, 2011 at 01:29:24PM +0200, Carsten Schiers wrote:
> Hi,
> the higher load is neither bound to memory increase nor Xen version, it's the 
> kernel. 
> Changed at the same time from a Xenified kernel to pvops jeremy's git
> stable-2.6.32.x
> Konrad, are you interested? You can see from attached graphic the much higer 
> load
> mid 21 to 24. riker (yellow) is using the cards constantly for scanning 
> transponders,
> two seem to make use of DMA for that reason...

Um, so 2.6.34 to 2.6.32 causes this spike in usage? What is the SWIOTLB 
usage between these two kernels and are the drivers (budget_...) the same 

Xen-devel mailing list