using compute_monitors option for nova

Hello Experts, I hope this email finds you well. I am researching the "compute_monitors" option for nova and would like to find out what it can do. By some googling I find that by enabling this option, the compute_nodes table will store extra metrics and reflect the vcpu usage on the compute node. My question is is it possible to also save memory usage? Besides, is this option still supported in the long term? Thank you very much for the help. -- Best Regards, Jiatong Shen https://docs.openstack.org/ocata/config-reference/compute/config-options.htm...