--------------------------VM cpu pining info------------------------------ # VM server_on_host1 cpu pinning info 4096 # VM server_on_host2 cpu pinning info (before migration) 4096 # VM server_on_host2 cpu pinning info (after this VM was migrated to host1) 4096 --------------------flavor's extra spec setting---------------------- hw:cpu_policy='dedicated' hw:numa_cpus.0='0-3' hw:numa_mem.0='512' hw:numa_nodes='1' ---------------------server_on_host1 domain xml----------------------- $ sudo virsh dumpxml instance-0000003d instance-0000003d 0f84973c-62de-4eb0-ac3e-ba3f6f8a869b server_on_host1 2019-03-01 05:14:59 512 1 0 0 4 admin admin 524288 524288 4 4096 /machine OpenStack Foundation OpenStack Nova 18.1.0 0f84973c-62de-4eb0-ac3e-ba3f6f8a869b 0f84973c-62de-4eb0-ac3e-ba3f6f8a869b Virtual Machine hvm destroy restart destroy /usr/bin/kvm-spice