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SubjectRe: [QUERY] lguest64
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On Fri, Jul 19, 2013 at 8:46 PM, H. Peter Anvin <hpa@zytor.com> wrote:
> On 07/19/2013 10:42 AM, Ramkumar Ramachandra wrote:
>> H. Peter Anvin wrote:
>>> We want to reduce pvops and pvops users, not increase them...
>>
>> I see. So the future is true virtualization which exposes the
>> underlying hardware, like KVM? Why do bare-metal virtualizers like
>> Xen employ paravirtualization? Also, where does UML stand?

UML is a nice thingy because it is Linux ported to itself, but it has
limitations.
Mostly it's speed (pagefaults and system calls are really slow) and it
supports only x86/x86_64.

I use UML on systems where KVM is not available.

--
Thanks,
//richard


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