On Mon, Nov 28, 2016 at 10:38:58AM -0600, Christoph Lameter wrote: > > > that only insiders know how to tune and an overall fragile solution. > > While I agree with all of this, it's also a problem independent of this > > patch. > > It is related. The fundamental issue with fragmentation remain and IMHO we > really need to tackle this. > Fragmentation is one issue. Allocation scalability is a separate issue. This patch is about scaling parallel allocations of small contiguous ranges. Even if there were fragmentation-related patches up for discussion, they would not be directly affected by this patch. If you have a series aimed at parts of the fragmentation problem or how subsystems can avoid tracking 4K pages in some important cases then by all means post them. -- Mel Gorman SUSE Labs -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>