Xen users - Aug 2006 - Abysmal network performance from HVM domains

Hi All,

I was wondering if anyone had any hints on getting decent I/O
(specifically network I/O) from an HVM domain. At the moment I''m using
the pcnet32 driver, but the performance is abysmal.

I found this at Intel''s website
http://www.intel.com/technology/itj/2006/v10i3/3-xen/5-performance-tuning-vt-x.htm

I was wondering if anyone could shed some light on achieving this kind
of performance. At the moment I get about 5MB/s from gigabit ethernet or
the host machine using wget, and 1.6MB/s using scp.

Any ideas? I''ve tried all of xen-unstable, xen-testing and xen-3.0.2,
with very similar results.

-- 
Dave Cameron

Systems Support
QUICKCIRCUIT
ELECTRONIC DESIGN & CONTRACT MANUFACTURING
Tel. +64 9 448 1901 ext 836
Fax. +64 9 448 1903
www.quickcircuit.co.nz
2 Piermark Drive. PO Box 302859, North Harbour, Auckland, NZ 


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> -----Original Message-----
> From: xen-users-bounces@lists.xensource.com 
> [mailto:xen-users-bounces@lists.xensource.com] On Behalf Of 
> Dave Cameron
> Sent: 17 August 2006 06:19
> To: xen-users@lists.xensource.com
> Subject: [Xen-users] Abysmal network performance from HVM domains
> 
> Hi All,
> 
> I was wondering if anyone had any hints on getting decent I/O
> (specifically network I/O) from an HVM domain. At the moment I''m
using
> the pcnet32 driver, but the performance is abysmal.
> 
> I found this at Intel''s website
> http://www.intel.com/technology/itj/2006/v10i3/3-xen/5-perform
> ance-tuning-vt-x.htm
> 
> I was wondering if anyone could shed some light on achieving this kind
> of performance. At the moment I get about 5MB/s from gigabit 
> ethernet or
> the host machine using wget, and 1.6MB/s using scp.
Considering that the above article was published on the 10th of August,
it may not have reached the Unstable tree yet... Particularly since the
Xen 3.0.3 release is just around the corner, it may be held for the next
release (as it''s probably a fair amount of changes, and not something
you''d want to stick in just before a new relase is due). 

--
Mats
> 
> Any ideas? I''ve tried all of xen-unstable, xen-testing and
xen-3.0.2,
> with very similar results.
> 
> -- 
> Dave Cameron
> 
> Systems Support
> QUICKCIRCUIT
> ELECTRONIC DESIGN & CONTRACT MANUFACTURING
> Tel. +64 9 448 1901 ext 836
> Fax. +64 9 448 1903
> www.quickcircuit.co.nz
> 2 Piermark Drive. PO Box 302859, North Harbour, Auckland, NZ 
> 
> 
> _______________________________________________
> Xen-users mailing list
> Xen-users@lists.xensource.com
> http://lists.xensource.com/xen-users
> 
> 
> 


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