scoreunder / cpu_usage

Quick CPU usage tool for command line usage

CPU usage monitor

TL;DR

• shows CPU usage percentage
• needs systemd (kinda)
• made for i3blocks

Description

Intended for use on systemd systems. Maybe uncomment line 9 and comment out line 10 if you're not using systemd. (At the expense of a ridiculously slim chance of a hypothetical symlink attack)

This tool will output the CPU usage percentage to stdout and then exit. The first run will produce the output "nan%" but the rest will be fine. Designed for i3blocks as a drop-in replacement for the existing script. The existing one lingers around for a short moment and shows CPU usage between program start and finish, but this one shows CPU usage between invocations instead, which means that all you need to do to change the resolution in i3blocks is to change the i3blocks "interval" as with any other program.

This program outputs the usage since last invocation, so if this tool is being invoked by multiple programs, the output may apply to an unacceptably short period of time.

How to build

1. install dune (the ocaml build tool)
2. dune build