Re: [driver-core PATCH v5 9/9] libnvdimm: Schedule device registration on node local to the device

From: Bart Van Assche
Date: Tue Nov 06 2018 - 19:26:38 EST


On Mon, 2018-11-05 at 13:12 -0800, Alexander Duyck wrote:
+AD4 This patch is meant to force the device registration for nvdimm devices to
+AD4 be closer to the actual device. This is achieved by using either the NUMA
+AD4 node ID of the region, or of the parent. By doing this we can have
+AD4 everything above the region based on the region, and everything below the
+AD4 region based on the nvdimm bus.
+AD4
+AD4 By guaranteeing NUMA locality I see an improvement of as high as 25+ACU for
+AD4 per-node init of a system with 12TB of persistent memory.

Thank you for having included the performance numbers.

Reviewed-by: Bart Van Assche +ADw-bvanassche+AEA-acm.org+AD4