In our test based v15.2.2, i found osd_numa_prefer_iface/osd_numa_auto_affinity make onlye half cpu used. for 4K RW, it make performance drop much. So you can check this whether occur. _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx