Hi Evgeniy,
Thanks for the reply.
I used Netperf
(ftp://ftp.cup.hp.com/dist/networking/benchmarks/netperf/netperf-2.4.1.tar.gz)
as the testing tool.
Here is my test configuration
. CentOS 5.2 with Xen 3.3.0 64-bit Hypervisor
. 32-bit Windows XP HVM guest with PV drivers
. 32-bit Windows XP HVM guest with PV drivers
. 64-bit Windows XP Pro HVM guest
. 62-bit Federa10 PV guest
. 32-bit CentOS 5.2 PV guest
. 1Gbits/second network
Network throughput on 32/64 bit PV guests are almost the same, but 32-bit
Windows HVM performed far slower than its 64-bit counterpart.
About 930 mbits/second on 32/64 bit PV guests
About 140 mbits/second on 64-bit Windows XP HVM guest
About 30 mbits/second on 32-bit Windows XP HVM guest with PV drivers
About 15 mbits/second on 32-bit Windows XP HVM guest without PV drivers
Kelven
-----Original Message-----
From: Evgeniy Sudyr [mailto:eject.in.ua@xxxxxxxxx]
Sent: Friday, June 19, 2009 2:07 PM
To: Kelven Yang
Subject: Re: [Xen-users] Performance question on 32-bit HVM DomU vs 64-bit HVM
DomU on top of 64-bit Xen Hypervisor
Kelven, How you compared performance, what benchmarking tools you used?
If you ean GUI speed ... - following my experience you can note that
you used not only different architecture of same OS - you used a bit
different OS which means - other kernel, other drivers(which may be
performance issue), other updates installed, and main performance
issue for windows is list of installed/running programs/services.
In my opinion it's impossible to say - I have same , but 32 vs 64 ...
I guess that problem somewhere deep inside config.
P.S.
I'm not Xen expert , this is my minds.
I'm interest for answer from more experienced Xen guys and their
answers/explanations.
--
Thanks!
Evgeniy Sudyr
http://www.eject.name
On Fri, Jun 19, 2009 at 9:49 PM, Kelven Yang<kelven@xxxxxxxxx> wrote:
> Hello,
>
>
>
> I’m now doing some network performance testing on running Windows XP on top
> of a 64-bit Xen Hypervisor, I compared the performance results on a 32-bit
> Windows XP and a 64-bit Windows XP (both are running as a HVM guest on
> 64-bit Xen Hypervisor), I found that with a 32-bit windows XP, it performs
> much slower than 64-bit windows XP, could anyone explain the reason of it?
>
>
>
> Thanks in advance
>
> Kelven
>
> _______________________________________________
> Xen-users mailing list
> Xen-users@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-users
>
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