Re: about page migration on UMA

Jared Hulbert
2007-11-09T19:54:25Z

On 11/9/07, Christoph Lameter <clameter@sgi.com> wrote:
> On Fri, 9 Nov 2007, Jared Hulbert wrote:
>
> > For extreme low power systems it would be possible to shut down banks
> > in SDRAM chips that were not full thereby saving power. That would
> > require some defraging and migration to empty them prior to powering
> > down those banks.
>
> Yes we have discussed ideas like that a couple of time. If you do have the
> time then please make this work. You have my full support.

So I would like to make this migration controlled by userspace. Are
there mechanisms to allow that today? If you give me a starting point
I'll look into something like this.