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SubjectRe: [PATCH 13/15] sched: Set preferred NUMA node based on number of private faults
On Sat, Jul 06, 2013 at 12:09:00AM +0100, Mel Gorman wrote:
> The third reason is that multiple threads in a process will race each
> other to fault the shared page making the fault information unreliable.

Ingo and I played around with that particular issue for a while and we had a
patch that worked fairly well for cpu bound threads and made sure the
task_numa_work() thing indeed interleaved between the threads and wasn't done
by the same thread every time.

I don't know what the current code does and if that is indeed still an issue.


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