Re: [RFCv1 3/6] PASR: mm: Integrate PASR in Buddy allocator

From: Pekka Enberg
Date: Tue Jan 31 2012 - 07:46:46 EST


On Mon, Jan 30, 2012 at 6:52 PM, Maxime Coquelin
<maxime.coquelin@xxxxxxxxxxxxxx> wrote:
>> What is more likely is that you will get pushed to doing something like
>> periodically scanning memory as part of a separate power management
>> module and calling into PASR if regions of memory that are found that
>> can be powered down in some ways.
>
> With this solution, we need in any case to add some hooks in the allocator
> to ensure the pages being allocated are refreshed.

Why do you insist on making this happen at page level when you're only
able to power off *much* larger chunks?
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