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[Xen-users] Performance question on 32-bit HVM DomU vs 64-bit HVM DomU on top of 64-bit Xen Hypervisor

  • To: "xen-users@xxxxxxxxxxxxxxxxxxx" <xen-users@xxxxxxxxxxxxxxxxxxx>
  • From: Kelven Yang <kelven@xxxxxxxxx>
  • Date: Fri, 19 Jun 2009 11:49:32 -0700
  • Accept-language: en-US
  • Acceptlanguage: en-US
  • Delivery-date: Fri, 19 Jun 2009 11:50:41 -0700
  • List-id: Xen user discussion <xen-users.lists.xensource.com>
  • Thread-index: AcnxDq81bIryJ5sXRam/aHKUZ2ER2A==
  • Thread-topic: Performance question on 32-bit HVM DomU vs 64-bit HVM DomU on top of 64-bit Xen Hypervisor

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

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