Re: [PATCH 08/16] sched: Reschedule task on preferred NUMA node once selected

Peter Zijlstra
2013-07-12T10:15:01Z

On Thu, Jul 11, 2013 at 03:09:14PM +0100, Mel Gorman wrote:
> That might be necessary when the machine is overloaded. As a
> starting point the following should retry the migrate a number of times
> until success. The retry is checked on every fault but should not fire
> more than once every 100ms.

Yeah, something like that might work. But getting a working imbalance bound is
important. The current very weak direct migration is the only thing that keeps
the system from massively skewing load.