Chapter 3.1.6 qps

qps is the graphical task manager included with Lubuntu. It is useful to close non-responsive programs.

Usage

To see your memory usage in qps look at the bar that says MEM. The bar for CPU usage shows CPU usage with a bar graph with usage with a bar graph for CPU usage. The Uptime in the top bar shows how long your computer has been running. A blue bar showing file input output shows graph in blue. Above this there is a green graph that shows your CPU usage as a graph. To show when a program was started with the START column. To have a view of process ID of each process use the PID column. The column Command Line shows what command line starts the process. To show which user the process is running on is in the USER column.

To sort your processes by memory click on the mem tab. To have your processes sorted by CPU percentage press the button CPU% To have your processes sorted by CPU%. To sort by the command line of each process you can press the command line. To sort by how much memory is used by each process click on the Mem tab. To only show processes by your user on the toolbar drop down and select Your Processes. To view only processes not run by the root user form the dop menu on lower toolbar select Non-Root Processes. To view only running processes select on the drop down menu on the lower toolbar select Running Processes. To go back to viewing all processes select from the drop down menu on the toolbar select All Processes.

To change your process view to each process gets its own line or linear select the Linear radio button in the upper left hand corner. To organize each related process with a tree for parent and child processes press the Tree radio button. To search for a particular process enter a search term in the bar towards the center top of the user interface.

When you have qps open a tray icon will appear that shows a graph of cpu usage. If you right click Hide to make qps not show in the taskbar. To bring qps back to the front off all windows right click on the tray icon Show. To quit qps press Alt +Q or right click the tray icon and select Quit.

To search for a particular process you can type your type into the search bar right above a particular process right above it. To terminate a process right click on it and select Terminate or press delete. To kill a process move the mouse over it right click and select Kill or press Alt + K.

To toggle showing a graph with your overall system usage check/uncheck the Otion ‣ Show Graph checkbox in the menu. To toggle showing the bar with the option to search for processor or choose linear or tree view of processes check/uncheck Option ‣ Show Control bar checkbox in the menu. To change the update period is to Option ‣ Update Period. Then input your update period in the New Update Period field.

Version

Lubuntu ships with version 1.10.20 of qps.

Screenshot

../../../_images/qps.png

How to Launch

To launch qps go to the menu System Tools ‣ qps or run

qps

from the command line.

Customizing

To change more preferences Options ‣ Prefrences and a preferences window will pop up. To change the font is the drop down menu under Appearance and the drop down number is for the font size. To change how CPU usage is divided per your total number of CPU cores or a Single CPU press a radio button under %CPU divided by.
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