CPU and RAM memory monitors for use with GNU Screen
Two programs are provided for system monitoring in the hardstatus line of GNU Screen: a CPU usage monitor and a memory usage monitor. These programs are intended to use minimal system resources.
The CPU usage monitor outputs a percent CPU usage over all processors that is updated every second. It also displays a textual bar graph of the current percent usage where every '|' character represents 10% usage.
The memory monitor is updated every three seconds and displays the used and available memory.
Example:
Mem:2885MB/7987MB Cpu:[||||| ] 51.2%
- >= cmake -2.6
- C++ compiler (e.g. gcc/g++)
There are links to the source code at the project homepage.
cd <source dir> cmake . make
su - make install logout
Configuring GNU Screen
The $HOME/.screenrc file must be edited to make use of the installed
programs, screen-cpu-usage and screen-mem-usage.
An example configuration:
# backticks to display information in the statusbar
backtick 1 0 0 /usr/local/bin/screen-mem-usage
backtick 2 0 0 /usr/local/bin/screen-cpu-usage
hardstatus alwayslastline
hardstatus string '%{kg}Host:%{kG}%H%{kg} %=%{kb}Mem:%{kB}%1` %{ky}Cpu:%{kY}%2`%% %{kR}Load:%{kr}%l%=%{kc} %D %m/%d %{kC}%C%a%{w}'
The example configuration will result in:
Host:flea Mem:2961MB/7987MB Cpu:[|| ] 25.6% Load:0.64 0.35 0.28 Fri 09/11 12:56am
Matt McCormick (thewtex) <[email protected]>