Intro

Several commands for NUMA administration

Instructions

Verify that your processor is supporting NUMA
dmesg | grep -i numa

Install numactl
apt -y install numactl

List cpu features
lscpu | grep -i numa

Find out pid of process to pin
ps aux | grep ceph-osd

Get current cores assertion of process
ps -mo psr -p $pid

List NUMA topology
numactl --hardware (Bear in mind that hyperthreading can make things much worse)

PIN process to cores via daemon
vim /usr/lib/systemd/system/ceph-osd
/usr/lib/systemd/system/ceph-radosgw\@.service
or via NUMACTL
numactl --cpunodebind=1 --membind=1 ceph-osd

Check
taskset -pc $(pgrep ceph-osd) ; done