Re: [PATCH] nvme-multipath: implement active-active round-robin path selector

From: Sagi Grimberg
Date: Wed Apr 04 2018 - 08:36:54 EST



For PCIe devices the right policy is not a round robin but to use
the pcie device closer to the node. I did a prototype for that
long ago and the concept can work. Can you look into that and
also make that policy used automatically for PCIe devices?

I think that active/active makes sense for fabrics (link throughput
aggregation) but also for dual-ported pci devices (given that
this is a real use-case).

I agree that the default can be a home-node path selection.