Can you also test with /sys/kernel/mm/ksm/merge_across_nodes set to 0 (and KSM enabled normally) and confirm this is a KSM+NUMA issue?
Another way to potentially cause this issue to occur faster would be to set:
/sys/kernel/mm/ksm/sleep_millisecs to a value lower than 200
or
/sys/kernel/mm/ksm/pages_to_scan to a much larger number than 100
Can you also test with /sys/kernel/ mm/ksm/ merge_across_ nodes set to 0 (and KSM enabled normally) and confirm this is a KSM+NUMA issue?
Another way to potentially cause this issue to occur faster would be to set: mm/ksm/ sleep_millisecs to a value lower than 200 mm/ksm/ pages_to_ scan to a much larger number than 100
/sys/kernel/
or
/sys/kernel/
Thanks,
--chris j arges