[fedora-virt] intel vt versus amd-v?
Robert P. J. Day
rpjday at crashcourse.ca
Fri Jun 5 20:21:00 UTC 2009
On Fri, 5 Jun 2009, Richard W.M. Jones wrote:
> On Fri, Jun 05, 2009 at 11:57:14AM -0400, Robert P. J. Day wrote:
> > a friend wants to buy a server (probably dell) with HW virt support,
> > and is wondering if there are any current clear advantages of intel
> > over amd. the only observation i had time to make was that, if one
> > checks out entry-level servers from dell (ballpark $1000 cdn), the amd
> > opteron systems appear to be somewhat less expensive than equivalent
> > intel-based systems.
> > further thoughts?
> The more recent Intel and AMD parts have extra virtualization
> features which make virtualization more efficient -- primarily Intel
> Extended Page Tables (EPT) and AMD Nested Page Tables (NPT). So
> your friend should look at the chips which support that, basically
> Intel Nehalem and the quad-core AMD Opterons (previously known as
NPT is what AMD is now calling "Rapid Virtualization Indexing", yes?
Robert P. J. Day Waterloo, Ontario, CANADA
Linux Consulting, Training and Annoying Kernel Pedantry.
Web page: http://crashcourse.ca
Linked In: http://www.linkedin.com/in/rpjday
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