Re: [PATCH] sched/topology: Improve load balancing on AMD EPYC
From: Matt Fleming
Date: Fri Jun 28 2019 - 11:15:15 EST
On Wed, 26 Jun, at 09:18:01PM, Suthikulpanit, Suravee wrote:
> We use 16 to designate 1-hop latency (for different node within the same socket).
> For across-socket access, since the latency is greater, we set the latency to 32
> (twice the latency of 1-hop) not aware of the RECLAIM_DISTANCE at the time.
I guess the question is: Is the memory latency of a remote node 1 hop
away 1.6x the local node latency?