55 messages in com.xensource.lists.xen-ia64-develRE: [Xen-ia64-devel] Time for hybrid ...
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Alex Williamson16 Jan 2008 16:01 
Xu, Anthony16 Jan 2008 19:06 
Isaku Yamahata16 Jan 2008 19:45 
Isaku Yamahata16 Jan 2008 19:56 
Xu, Anthony16 Jan 2008 20:39 
tgin...@free.fr17 Jan 2008 01:19 
tgin...@free.fr17 Jan 2008 01:26 
Xu, Anthony17 Jan 2008 01:43 
Juergen Gross17 Jan 2008 01:46 
Xu, Anthony17 Jan 2008 01:53 
tgin...@free.fr17 Jan 2008 03:09 
tgin...@free.fr17 Jan 2008 03:10 
Akio Takebe17 Jan 2008 04:43 
Xu, Anthony17 Jan 2008 05:26 
Xu, Anthony17 Jan 2008 05:32 
tgin...@free.fr17 Jan 2008 06:00 
Xu, Anthony17 Jan 2008 06:14 
Alex Williamson17 Jan 2008 09:57 
Jarod Wilson17 Jan 2008 14:18 
Mark Williamson17 Jan 2008 14:23 
Tristan Gingold17 Jan 2008 18:00 
Tristan Gingold17 Jan 2008 18:51 
Tristan Gingold17 Jan 2008 22:24 
Alex Williamson18 Jan 2008 15:43 
Xu, Anthony20 Jan 2008 18:05 
Xu, Anthony20 Jan 2008 22:57 
tgin...@free.fr21 Jan 2008 02:20 
tgin...@free.fr21 Jan 2008 05:44 
Dong, Eddie21 Jan 2008 07:15 
tgin...@free.fr21 Jan 2008 08:18 
Xu, Anthony21 Jan 2008 18:30 
Dong, Eddie21 Jan 2008 18:51 
tgin...@free.fr22 Jan 2008 01:28 
tgin...@free.fr22 Jan 2008 01:30 
Alex Williamson22 Jan 2008 10:02 
Alex Williamson22 Jan 2008 10:17 
Dong, Eddie22 Jan 2008 17:00 
tgin...@free.fr23 Jan 2008 00:44 
tgin...@free.fr24 Jan 2008 04:57 
Kayvan Sylvan24 Jan 2008 08:20 
Alex Williamson24 Jan 2008 12:43 
Kayvan Sylvan24 Jan 2008 13:18 
Alex Williamson24 Jan 2008 13:31 
Akio Takebe24 Jan 2008 17:05 
Kayvan Sylvan24 Jan 2008 17:16 
Xu, Anthony24 Jan 2008 19:17 
tgin...@free.fr25 Jan 2008 02:36 
Kayvan Sylvan25 Jan 2008 16:08 
Alex Williamson26 Jan 2008 16:01.pdf
Xu, Anthony27 Jan 2008 19:06 
Joseph Szczypek28 Jan 2008 13:27 
Alex Williamson28 Jan 2008 15:38 
Tristan Gingold28 Jan 2008 22:25 
Yang, Fred06 Feb 2008 13:59 
Tristan Gingold06 Feb 2008 21:00 
Subject:RE: [Xen-ia64-devel] Time for hybrid virtualization?
From:Alex Williamson (alex@hp.com)
Date:01/24/2008 01:31:33 PM
List:com.xensource.lists.xen-ia64-devel

On Thu, 2008-01-24 at 13:19 -0800, Kayvan Sylvan wrote:

For the Montecito chip, running the RE-AIM7 compute workload, we have the following preliminary summary:

Native vs. Xen performace ---------------------------------- At 2-CPU, the overhead was 13%. At 4-CPU, the overhead was 17% At 8-cpu, overhead was 28% At 16-cpu, the overhead was 173%

Not quite sure why the performance dropped off so radically in the 16-CPU case.

I'm trying to get equivalent numbers for x86_64 and the Montvale chip.

Very interesting. Are you sizing the guest memory based on vCPU count? This is for HVM domUs? Do you also plan to test PV domUs? Thanks,

Alex

-- Alex Williamson HP Open Source & Linux Org.

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