[Xen-users] VMX Extensions

[Aaron Stewart <aaron@xxxxxxxxxxxxxx>]

Hey All,

Been an avid follower of Xen for the past few months, and have written 
several tools to take advantage of it.. Great progress, and a 
fascinating product.
We're about to do another round of purchases for hardware that will be 
running xen 3.0, and I have a question about VMX extensions built into 
the newer Intel Dual Core cpus.
What kind of performance is typical for these newer CPUs?  Is it worth 
incurring the additional cost?  What do the extensions buy you?
I'm curious to see if anyone has any experience with these vs. standard 
P4 systems, or versus dual processor systems as well .   We're making 
the purchases TODAY, and we're limited to Dell Hardware..
The choices on our table are:

- Intel Dual Core P4 (Pentium D 930 2x2MB Cache, 800 FSB)
- 2 x Xeon 2.8 2MB Cache 800 FSB

We're just not quite sure what makes more sense moving forward, and what 
kind of numbers we'll see.
Thanks,
-=Aaron

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