View Single Post

   
  #8 (permalink)  
Old 04-12-2008, 08:12 AM
Matthew O'Connor
 
Posts: n/a
Default Re: What X86/X64 OS's do we need coverage for?

Devrim Gündüz wrote:
> Hi,
>
> On Fri, 2007-04-06 at 01:23 -0400, Matthew T. O'Connor wrote:
>> The other thing to consider is that CentOS 5 has Xen built right in,
>> so you should be able run VMs without VMWare on it.

>
> ... if the kernel of the OS has Xen support, there will be no
> performance penalty (only 2%-3%) (Para-virtualization). Otherwise, there
> will be full-virtualization, and we should expect a performance loss
> about 30% for each guest OS (like Windows).


I may be wrong but I thought that the guest OS kernel only needs special
support if the underlying CPU doesn't have virtualization support which
pretty much all the new Intel and AMD chips have. No?

---------------------------(end of broadcast)---------------------------
TIP 5: don't forget to increase your free space map settings

Reply With Quote