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[Xen-users] Improve performance of domain U

To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-users] Improve performance of domain U
From: "saptarshi naha" <naha80@xxxxxxxxx>
Date: Sun, 3 Sep 2006 10:17:41 +0530
Delivery-date: Sat, 02 Sep 2006 21:48:22 -0700
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I just had a quick question about improving the performance for Xen VM's.

I have installed Xen 3.0.2 on RHEL4 with 1 kernel compiled for all
domains. When I access by VM's the performance of the domain U is
slower then taht of domain 0.

1. I wanted to know if there are any configuration changes I can make
to improve the performance of domain U?

2. Domain U have no /boot sector in /etc/fstab. It is all a single
partition in / . I wanted to know if there are any shortcoming to just
having / partition to performance?

3. Also can the domain U be given swap space to improve performance? I
am guesssing thats the swap is used from domain 0 which was added
during inital installation.

4. Is the performance of teh domain U dropped due to internal
networking through bridging? I wanted to know if anyone knows how to
fine tune it to improve performance.


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