Re: Page Colouring (was: 2.6.0 Huge pages not working as expected)

Mike Fedyk
2003-12-29T00:36:52Z

On Sun, Dec 28, 2003 at 08:39:52AM -0800, William Lee Irwin III wrote:
> On Sat, 27 Dec 2003, Eric W. Biederman wrote:
> >> For anyone taking you up on this I'd like to suggest two possible
> >> directions.
> >> 1) Increasing PAGE_SIZE in the kernel.
>
> On Sat, Dec 27, 2003 at 08:53:30PM -0800, Linus Torvalds wrote:
> > Yes. This is something I actually want to do anyway for 2.7.x. Dan
> > Phillips had some patches for this six months ago.
> > You have to be careful, since you have to be able to mmap "partial pages",
> > which is what makes it less than trivial, but there are tons of reasons to
> > want to do this, and cache coloring is actually very much a secondary
> > concern.
>
> I've not seen Dan Phillips' code for this. I've been hacking on
> something doing this since late last December.

I remember his work on pagetable sharing, but haven't heard anything about
changing the page size from him.

Could this be what Linus is remembering?