[Xen-users] HDD-performance on HVM winxp

["Daniel Schwager" <Daniel.Schwager@xxxxxxxx>]

Hi together,

i'm running a winxp hvm-domain without the GPLPV-driver.

I imported an iscsi-target as a lun for the winxp-domain and
run an iometer test directly on the winxp-domain:

        Blocksize       type    MB/sec
        ------------------------------
        1 MB            read    25 MB
        1 MB            write   0.8 MB
        128 kb  read    25 MB
        128 kb  write   0.8 MB

If I run the same test on the xen-domain0 (hostsystem)using iometer's
dynamo, I got
        Blocksize       type    MB/sec
        ------------------------------
        1 MB            read    66 MB
        1 MB            write   55 MB

My problem ist the 0.8MB/sec in the winxp-domain...
Is there a way to track down the performance issue ?

[root@xen04 /var/log/xen]$ rpm -qa | grep xen
kernel-xen-devel-2.6.21-2957.fc8
kernel-xen-devel-2.6.21.7-3.fc8
xen-libs-3.1.2-2.fc8
kernel-xen-2.6.21.7-3.fc8
xen-3.1.2-2.fc8
xen-libs-3.1.2-2.fc8
kernel-xen-2.6.21-2957.fc8
kernel-xen-2.6-doc-2.6.21.7-3.fc8

[root@xen04 /var/log/xen]$ uname -a
Linux xen04.test 2.6.21-2957.fc8xen #1 SMP Tue Feb 12 13:07:27 EST 2008
x86_64 x86_64 x86_64 GNU/Linux


regards
Danny


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