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[Xen-devel] Re: Very poor VMX performance

To: xen-devel@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-devel] Re: Very poor VMX performance
From: Casey Jeffery <kcjeffery@xxxxxxxxx>
Date: Fri, 10 Feb 2006 13:22:35 -0500
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Thanks for the quick responses. I resorted to using ia32 just to get around some of the driver issues I was having, so the host is Breezy with a full Xen kernel and initrd module and the guest is Breezy straight off the install DVD with a kernel. I gave the host 512MB of memory and the guest 256MB and the system is doing nothing but running these two machines.

I hadn't tried SDL yet since I wasn't familair with it. It turns out there was nothing more to it than enabling it in the vmx config. Now my mouse and keyboard work great. I'm not sure what my problem was with vncserver, but I guess I won't worry about it for now.

On 2/10/06, Casey Jeffery <kcjeffery@xxxxxxxxx > wrote:
After several days of problems, I finally got Xen 3.0.1 set up in Ubuntu Breezy with the 2.6.12 kernel on a VT-enabled system with an Intel 930 processor and 2GB of memory.

I have been able to install an unmodified guest without any issues other than performance. The guest runs extremely slowly and the mouse and keyboard are all but useless because of the extreme lag. I've tried multiple viewers (vncviewer 3.3, 4.0, and tightvnc), as well as low color depths. I am currently using a file-backed image file, as was recommended in the user's manual, but I don't know of any other item that could be causing such poor performance. I don't see anything about this in the archives and am open to any suggestions


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