On Fri, 29 Oct 2010 12:31:54 +0200 Andi Kleen <andi.kleen@xxxxxxxxx> wrote: > > When I was posting CMA, it had been suggested to create a new migration type > > dedicated to contiguous allocations. I think I already did that and thanks to > > this new migration type we have (i) an area of memory that only accepts movable > > and reclaimable pages and > > Aka highmem next generation :-( > yes. But Nick's new shrink_slab() may be a new help even without new zone. > > (ii) is used only if all other (non-reserved) pages have > > been allocated. > > That will be near always the case after some uptime, as memory fills up > with caches. Unless you do early reclaim? > memory migration always do work with alloc_page() for getting migration target pages. So, memory will be reclaimed if filled by cache. About my patch, I may have to prealloc all required pages before start. But I didn't do that at this time. Thanks, -Kame -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>