Hi,
We have an app running on an HP DL360p processing lots of network packets. The system has 2 CPUs, each being its own NUMA node, and runs Ubuntu Server 12.04. We've connected one HP 560SFP+ 10G adapter to slot 1; that card gets assigned to NUMA node 0, according to /sys/class/net/eth4/device/numa_node. I guess that's down to how that PCIe slot is connected - probably it's wired to node 0. However, after installing another NIC of the same model in slot 2, I found it was also getting assigned to node 0. Apparently none of the slots are assigned to node 1.
Is this by design? This being down to hardware wiring, I would expect this not to be configurable, right? Or is there a way to map a PCIe adapter to the other NUMA node?
Is this documented in the server specs? At least the datasheet doesn't specify anything about this...
Thanks in advance,
Stefan.