screen-cpu-mem

CPU and RAM memory monitors for use with GNU Screen

Description

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%

Installation

Dependencies

Building

• >= cmake -2.6
• C++ compiler (e.g. gcc/g++)

Download

There are links to the source code at the project homepage.

Build

cd <source dir>
cmake .
make

Install

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

Author

Matt McCormick (thewtex) <matt@mmmccormick.com>