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


[Xen-users] flexible memory management?

To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-users] flexible memory management?
From: Sven Köhler <skoehler@xxxxxx>
Date: Fri, 09 Feb 2007 00:55:54 +0100
Delivery-date: Thu, 08 Feb 2007 15:56:12 -0800
Envelope-to: www-data@xxxxxxxxxxxxxxxxxx
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>
Sender: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
User-agent: Thunderbird (X11/20070118)

i'm passing dom0_mem=128M to the xen-hypervisor.
Then i'm starting two domUs with 435MB each.

Now i'm compiling something on my dom0. The dom0 is swapping, and
swapping, and swapping. The gcc-process is about 300megabytes. That
doesn't fit into the 128MB.

So is there some feature, with a minimum of performenace penalty, that
xen manages memory so that memory can be assigned, moved, and so on?

I could stop a domU to gain more memory for my dom0. Maybe it's even
possible to tell the domU to free 100MB and assign them to my dom0
temporarly etc.

But at the moment, my dom0 has 128MB statically. That's it.

So is there some more flexible way, like i'm imagining?
(well, without rebooting?)


Attachment: signature.asc
Description: OpenPGP digital signature

Xen-users mailing list