Session scope xxx of user root

Hi,

In Bootup and Shutdown under system I’ve noticed many instances of “Session xxx scope / Session xxx of root”
I’m not sure where they come from but they slow down the server for sure.

Any idea, help on this issue is appreciated.
Thanks

A snapshot is provided here:
http://danamotor.ir/Internet_IT_Webmin_Bootup_Shutdown_User_Root_Processes.jpg