Re: [PATCH 0/3] Use one zonelist per node instead of multiple zonelists v2

On Thu, 9 Aug 2007, Andi Kleen wrote:

> > I think I'll duck this for now on im-trying-to-vaguely-stabilize-mm grounds.
> > Let's go with the horrible-hack for 2.6.23, then revert it and get this
> > new approach merged and stabilised over the next week or two?
> 
> I would prefer to not have horrible hacks even temporary

The changes that we are considering for 2.6.24 will result in a single 
zonelist per zone that will filter the zoneslist in alloc_pages. This lead 
to a performance improvement in the page allocator.

What you call a hack is doing the same for the special policy zonelist in 
2.6.23 in order to be able to apply policies to the two highest zones. We 
apply a limited portion of the changes for 2.6.24 to .23 to fix the 
ZONE_MOVABLE issue.

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References:
- [PATCH 0/3] Use one zonelist per node instead of multiple zonelists v2
  - From: Mel Gorman <[email protected]>
- Re: [PATCH 0/3] Use one zonelist per node instead of multiple zonelists v2
  - From: Andrew Morton <[email protected]>
- Re: [PATCH 0/3] Use one zonelist per node instead of multiple zonelists v2
  - From: Andi Kleen <[email protected]>

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