[PATCH 1/7] numa,sched,mm: remove p->numa_migrate_deferred

2014-01-17 Thread riel
From: Rik van Riel Excessive migration of pages can hurt the performance of workloads that span multiple NUMA nodes. However, it turns out that the p->numa_migrate_deferred knob is a really big hammer, which does reduce migration rates, but does not actually help performance. Now that the

[PATCH 1/7] numa,sched,mm: remove p-numa_migrate_deferred

2014-01-17 Thread riel
From: Rik van Riel r...@redhat.com Excessive migration of pages can hurt the performance of workloads that span multiple NUMA nodes. However, it turns out that the p-numa_migrate_deferred knob is a really big hammer, which does reduce migration rates, but does not actually help performance. Now