Wed Feb 23 14:49:58 PST 2005
Martin Pool wrote:
>On 23 Feb 2005, "J. Paul Reed" <email@example.com> wrote:
>>>I mean the kernel modules that are necessary to load if you are using
>>>Linux as the host os. The ones that taint the kernel when loaded, and
>>>drive you all crazy with every new kernel release as the different
>>>kernel apis change all around you, with you all being helpless and
>>>constantly playing catch up. Quite fun to watch if you ask me.
>>Ahh... and Xen is different how? Oh right... they just modify the whole
>>damn kernel (and require you to patch your entire kernel every rev).
>>The fact of the matter is, if you're not running a virtualization platform
>>(a la ESX), and you're running a "hosted" virtualization product, you have
>>to do this. UML does it. Xen does it. VMware does it.
>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.
From what I've read, it's a 5x performance hit if you don't use the
QEmu modules tho.
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