Run Task Manager In Xubuntu as Superuser

Question

I am trying to change the priority of a process in my system via Xubuntu's Task Manager by typing sudo taskmgr, but taskmgr isn't the name of the executable. What is the name of the executable program and if I change the priority of a process and restart my computer, will the process have the same priority?

Answer 1

Never use sudo to start graphical applications. (More infos)

This should work:

sudo xfce4-taskmanager

Then go to settings on top left and then click on "Show all processes".

But the root xfce4-taskmanager shows only the root processes... Perhaps this is a better solution to set your priorities:

Change niceness (priority) of a running process

The priority of a process will be lost if you close the process. But you can start any process with a certain priority: Do all apps start with a normal priority on the system monitor?