On Dec 12, 2009, at 2:39 PM, Elliott Price wrote:

> Since VPC is made by Bloatware itself, (aka Microsoft) it runs VERY
> VERY slowly. Our 667Mhz Mac had trouble running XP with VPC. If you
> really do want to run Windows on your Mac in an emulator, I would go
> with something simpler like VirtualBox (I think that's what it's
> called, not quite sure) or Parallels or Fusion on intel Macs.


<headdesk headdesk>

Emulators != VIrtual Machines

VPC was not slow because it was made by Microsoft. It was slow BECAUSE  
IT'S AN EMULATOR. Every single bit of machine code that goes into  
running things has to be translated to the host CPU. It was just as  
slow when it was made by Connectix.

VirtualBox, Parallels or Fusion are NOT emulators. They are Virtual  
Machines, which is something considerably different. The code i them  
runs at nearly native speeds since no translation needs to be done.

Systems run on hypervisors are even faster. I can run four or five  
servers on one decent box with modern hypervisors like Xen. Heck, on  
the appropriate hardware (like an IBM Mainframe) I can run *hundreds*.  
IBM claims that with the appropriate hardware you can run over a  
thousand Linux servers on one of it's modern mainframes.


-- 
Bruce Johnson

"Wherever you go, there you are" B. Banzai,  PhD

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