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I'm excited and looking forward to Ryzen. I can't wait to see how well it performs for us as a CDN server. However, I'm concerned about the heavily NUMA nature
by drewg123 10y ago
I'm excited and looking forward to Ryzen. I can't wait to see how well it performs for us as a CDN server. However, I'm concerned about the heavily NUMA nature of even a single socket system (4 dies per package, see http://www.anandtech.com/show/11183/amd-prepares-32-core-naples-cpus-for-1p-and-2p-servers-coming-in-q2 http://www.anandtech.com/show/11183/amd-prepares-32-core-nap...). Depending on the bandwidth of the on-package interconnect, things could either be just fine, or it could be a non-starter.
Part of the problem is FreeBSD just not being very NUMA aware. A less obvious part of the problem is even if FreeBSD was NUMA aware, we'd still have problems with files read off storage on node 0 having to exit the system via a 100GbE NIC on node1, etc.