[vbox-dev] Transparent Memory Compress

[Howard Su]

On Fri, Jan 21, 2011 at 11:45 PM, Klaus Espenlaub <
klaus.espenlaub at oracle.com> wrote:

> On 20.01.2011 15:33, Howard Su wrote:
>
>> Does vbox has this feature or in the road-map? If not, someone is
>> familiar with the code base can show me some lights on what's the start
>> point to add this feature?
>>
>
> What do you mean with "compress" - identifying indentical pages between VMs
> and eliminating the duplicates? That's been added in VBox 3.2, page fusion.
>
> thanks. this is what i am looking for. Can you point me where is the
related source code? I want to study it a bit.


> True compression of memory pages doesn't sound sensible to me at the VM
> level - we don't know as much about the meaning/use pattern of a memory page
> than the guest OS. Compressing the wrong pages would potentially do more
> harm than good. It's a feature which is popping up in some operating
> systems, and there it makes sense.
>
> agree. i am not looking for this at all.


> Klaus
>
>
>> --
>> -Howard
>>
>>
>>
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>
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-- 
-Howard
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