I'm new in XFCE edition. I used Cinnamon and Mate before. I'm developing desktop application. I often been monitoring how much memory it is consuming. It always was 7-8 MB. On XFCE it is 20 MB. I thought that maybe I did some memory leak. Task manager has only two columns for memory, second is virtual. So I run my application on normal ubuntu and here system monitor showing 7-8 MB. Ubuntu system monitor has more memory columns than XFCE and it showing me:
Resident memory = 21 MB, Writable memory = 6.4 MB, Shared memory = 15 MB, X Server memory = 196 KiB and Memory = 6.6 MB
So it seems that memory which XFCE task monitor is showing is Resident memory? Can I somehow replace XFCE task monitor with ubuntu system monitor (which is showing more memory columns)?