NUMA support on which CPU? What are the current server configuration of this kind of CPU?

802 views Asked by At

NUMA support on which CPU? What are the current server configuration of this kind of CPU? Linux NUMA commands regarding what, how to open NUMA?

1

There are 1 answers

0
Arthur Accioly On

This is going to depend of your server, if it's using a multicore cpu that support Numa affinity. Type numactl --hardware and you'll check how it's the current configuration, for example:

available: 2 nodes (0-1) node 0 cpus: 0 1 2 3 4 5 6 7 node 0 size: 32733 MB node 0 free: 4027 MB node 1 cpus: 8 9 10 11 12 13 14 15 node 1 size: 32767 MB node 1 free: 20898 MB node distances: node 0 1 0: 10 21 1: 21 10

If you want to check performance with your application, just make sure that it's using the CPUs from the same numa node. You can check this using ps -aux ortop commands.