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tmux-mem-cpu-load

CPU, RAM memory, and load monitor for use with tmux

Description

A simple, lightweight program provided for system monitoring in the status line of tmux.

The memory monitor displays the used and available memory.

The CPU usage monitor outputs a percent CPU usage over all processors. It also displays a textual bar graph of the current percent usage.

The system load average is also displayed.

Example output:

2885/7987MB [|||||     ]  51.2% 2.11 2.35 2.44

 ^    ^          ^         ^     ^    ^    ^
 |    |          |         |     |    |    |
 1    2          3         4     5    6    G
  1. Currently used memory.
  2. Available memory.
  3. CPU usage bar graph.
  4. CPU usage percentage.
  5. Load average for the past minute.
  6. Load average for the past 5 minutes.
  7. Load average for the past 15 minutes.

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 tmux

Edit $HOME/.tmux.conf to display the program's output in status-left or status-right. For example:

set -g status-interval 2
set -g status-left "#S #[fg=green,bg=black,bright]#(tmux-mem-cpu-load 2)#[default]"

Note that the first argument to tmux-mem-cpu-load should be the same number of seconds that status-interval is set at.

An optional second argument is the number of bars in the bar graph, which defaults to 10. This can, for instance, be set to the number of cores in a multi-core system.

Author

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