Hi, I have detected a high cpu usage for one process on samba, this process is 5745 # ps aux |grep samba |grep 5745 root 5745 80.1 8.9 759032 183220 ? R Mar21 2623:45 /usr/local/samba/sbin/samba -D samba-tool processes Service: PID ----------------------------- dnsupdate 5752 cldap_server 5746 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 rpc_server 5741 nbt_server 5743 winbind_server 5753 kdc_server 5747 notify-daemon 5756 ldap_server 5745 ldap_server 5745 ldap_server 5745 ldap_server 5745 ldap_server 5745 ldap_server 5745 ldap_server 5745 ldap_server 5745 ldap_server 5745 ldap_server 5745 ldap_server 5745 ldap_server 5745 ldap_server 5745 ldap_server 5745 ldap_server 5745 ldap_server 5745 ldap_server 5745 ldap_server 5745 ldap_server 5745 ldap_server 5745 ldap_server 5745 ldap_server 5745 ldap_server 5745 ldap_server 5745 ldap_server 5745 ldap_server 5745 ldap_server 5745 ldap_server 5745 ldap_server 5745 ldap_server 5745 ldap_server 5745 ldap_server 5745 ldap_server 5745 ldap_server 5745 ldap_server 5745 ldap_server 5745 ldap_server 5745 ldap_server 5745 ldap_server 5745 ldap_server 5745 ldap_server 5745 ldap_server 5745 ldap_server 5745 ldap_server 5745 ldap_server 5745 ldap_server 5745 ldap_server 5745 ldap_server 5745 kccsrv 5751 samba 0 dreplsrv 5748 I suspect that high cpu usage is for some ldap task, but I'm not sure and I like to know how to investigate what task is running to reduce this cpu usage during this high cpu usage, samba server perofrmacne is very low Thanks