- [Instructor] We can monitor processes
and other system resources graphically
with a tool called GNOME System Monitor.
We can find this application in the Applications menu,
System Tools, System Monitor.
If it's not there, it may need to be installed.
You can install it by typing,
"sudo yum install -y GNOME-system-monitor".
As soon as the install finishes, run it.
GNOME System Monitor has three tabs:
Processes, Resources, and File Systems.
The Processes tab shows running processes
on the system started by your user.
If you want to end a process, you can just click on one
and then click on the End Process button
at the bottom of the window.
You can do some of the functions of the top command
by right-clicking on a process in the list.
We can kill the process or change its priority.
We can also get process information
by choosing the Properties menu item.
The process properties shows the status,
who ran the process, memory usage, CPU usage,
the nice level, and the process ID.
Near the bottom of the pane is
the command line that was run,
including arguments and options,
as well as the SELinux security context.
A lot of this is the same information
that top or ps would provide.
The middle tab is for resources.
Namely: CPU, memory, and network usage history.
We don't have power to do much,
other than change the color of the bar
by left-clicking on the colored boxes.
GNOME System Monitor isn't as powerful as ps and top,
but it's prettier to look at and does a reasonable job,
without the user having to learn any complex syntax.