[kwlug-disc] VT-d or IOMMU -- any motherboard?

Brian Nickle brian at nickle.ca
Thu Apr 7 13:40:25 EDT 2011


I'm pretty sure that my Dell GX755 has VT-d  I know it at least has some
Virtual IO settings.

Here we go the xensource site has more info:
http://wiki.xensource.com/xenwiki/VTdHowTo

XENsource lists the following Desktops as having VT-d:


   -

   Dell: Optiplex
755<http://www.dell.com/content/products/category.aspx/optix?c=us&cs=555&l=en&s=biz>
   -

   HP Compaq: DC7800<http://h10010.www1.hp.com/wwpc/us/en/en/WF04a/12454-12454-64287-321860-3328898.html>
   -

   Fujitsu-Siemens: Esprimo
5925<http://facts.fujitsu-siemens.com/index.cfm?fuseaction=dspcontent&lid=134&page=3>
   -

   Lenovo: ThinkStation
E20<http://shop.lenovo.com/us/workstations/thinkstation/workstation/e20>
and
   Thinkserver TS200v


Truthfully running virtual machines on a Dell Latitude D630 laptop without
VT-D and running them on a GX755 desktop with the VT-D.  I honestly haven't
seen any performance gains from the VT-d IO stuff.  I think the you will
only see a performance gain if your are running very IO intensive
applications like perhaps a database.

Brian
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