The ceph version is Octopus. I enabled the rdma. And setting is the following. [global] ms_type = async+rdma ms_public_type = async+rdma ms_cluster_type = async+rdma ms_async_rdma_device_name = mlx5_0 ms_async_rdma_polling_us = 0 ms_async_rdma_local_gid = 0000:0000:0000:0000:0000:ffff:a9a9:a961 ms_async_rdma_roce_ver = 1 When I execute 'ceph -s', the CPU system is 100%. The sar command info. 11:16:24 AM CPU %user %nice %system %iowait %steal %idle 11:16:25 AM all 0.00 0.00 100.00 0.00 0.00 0.00 The top command info. PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 1205 root 20 0 586428 4 4 S 56.5 0.0 48:34.46 tuned 46 root 20 0 0 0 0 R 55.5 0.0 71:12.94 kswapd0 1 root 20 0 194120 100 100 R 50.0 0.0 56:18.33 systemd 1193 root 20 0 226720 0 0 S 37.0 0.0 37:18.04 rsyslogd 179952 root 20 0 1936448 324240 0 S 34.5 4.1 0:12.07 ceph 875 root 20 0 21544 248 244 R 23.9 0.0 23:19.21 irqbalance I would very much appreciate any advice. Best Regards, GHui _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx