On Wed, Jun 26, 2013 at 03:38:04PM +0100, Mel Gorman wrote:

This patch favours moving tasks towards the preferred NUMA node when
it has just been selected. Ideally this is self-reinforcing as the
longer the the task runs on that node, the more faults it should incur
causing task_numa_placement to keep the task running on that node. In
reality a big weakness is that the nodes CPUs can be overloaded and it
would be more effficient to queue tasks on an idle node and migrate to
the new node. This would require additional smarts in the balancer so
for now the balancer will simply prefer to place the task on the
preferred node for a tunable number of PTE scans.

This changelog fails to mention why you're adding the settle stuff in
this patch.

--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org.  For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>