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

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

To: "konrad.wilk" <konrad.wilk@xxxxxxxxxx>
Subject: AW: Re: Re: AW: Re: [Xen-devel] AW: Load increase after memory upgrade?
From: "Carsten Schiers" <carsten@xxxxxxxxxx>
Date: Tue, 28 Jun 2011 22:22:34 +0200
Cc: linux <linux@xxxxxxxxxxxxxx>, xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
Delivery-date: Tue, 28 Jun 2011 13:24:18 -0700
Dkim-signature: v=1; a=rsa-sha256; c=simple; d=mail.zeus06.de; h=date: from:to:cc:message-id:in-reply-to:subject:mime-version: content-type:content-transfer-encoding; q=dns/txt; s=beta; bh=Fe DcHNI2IWORmBz3BcO2rdLGrUpup49LE9ApGlOzPKI=; b=Q1m0NZlZN1C/DkJc9G B34bqz5tkf9MBz6c0oJBzCE+qeUmE2sO6xr/9011NTEegvqFVbs66X9YoczlMAX2 pdp5d8MDkqG6kUEb/Q+PTpFSsW8vrU6Mcx1f4Reb6U8sQbbMrk/7HVm28p9gcgOt +j53gCODYFXO5zwZzqb6uMWw8=
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
In-reply-to: <20110628145721.GC16290@xxxxxxxxxxxx>
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>
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
>a). What is the version of Dom0? Are you swapping that out? If so, and 
you
>want the latests then the next step is to do:

Dom0 is jeremy's git xen/stable-2.6.32.x in 64 Bit. DomUs are 32 Bit. 
Shall I 
experimently change that to what you recommended?


>c). If you want to see if the fault here lies in the bounce buffer 
being used more
>often in the DomU b/c you have 8GB of memory now and you end up using 
more pages
>past 4GB (in DomU), I can cook up a patch to figure this out. But an 
easier way is
>to just do (on the Xen hypervisor line): mem=4G and that will make 
think you only have
>4GB of physical RAM.  If the load comes back to the normal "amount" 
then the likely
>culprit is that and we can think on how to fix this.

So I will reboot with the a.m. parameter, but that's not possible right 
now. I 
will keep you informed. Eventually I can combine that with the test a) 
on Thursday.

Carsten.


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