[linux-elitists] Virtualization

Mike MacCana mmaccana@redhat.com
Wed Feb 23 17:12:15 PST 2005


Martin Pool wrote:

>On 23 Feb 2005, "J. Paul Reed" <preed@sigkill.com> wrote:
>  
>
>>>qemu doesn't require kernel modules, though apparently it does suffer
>>>a performance hit as a result of being able to use less of the MMU.
>>>      
>>>
>>According to http://fabrice.bellard.free.fr/qemu/kqemu-doc.html#SEC4:
>>    
>>
>
>When I said "doesn't require" I meant, y'know, "it's not required".
>
>  
>
>>So, apparently for QEmu to actually be... y'know... fast enough to be
>>useful, you need to do the "kernel module shuffle."
>>    
>>
>
>Well, no, some number of people find it useful without it, or consider
>it a good tradeoff not to need to mess with kernel modules.  As if
>there is any single value of "fast enough to be useful"...  For other
>people, any virtualization at all is too slow.
>  
>
Ok, but for many other people, being able to run a virtualized Windows 
under Linux at usable speed is their metric for performance.

Which you'd need kernel modules for. I think this is the point Mr Read 
is making - he's certainly not slandering anyone.

Mike



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