cpu-mem-usage-monitor

Very simple bash and gnuplot (>=5.0) script to monitor cpu and memory usage of given process in graph

How to use

Clone repo, mark monitor.sh as an executable running chmod +x monitor.sh and run it by

./monitor.sh [OPTIONS]... -p PID | [OPTIONS]... -c COMMAND

Options

• -p PID PID which will be monitored
• [-g] The graph will be created
• [-l FILE] Log file path
• [-d FILE] Graph file path
• [-s NUMBER] Time after the values will be added to log in seconds

Tracking by command name options

• -c COMMAND Command name will be tracked in system instead of PID
• [-F NUMBER] How long it will be waited for first occurrence of command in ps output.
• [-N NUMBER] How long it will be waited for next instance to appear in ps output.

Example

./monitor.sh -c firefox will track different instances of Firefox browser in system one at a time (always the newest instance if previously watched was killed).

Notes

Logged raw values will be placed in usage.log files and graph will be placed in usage.png by default. Graph will not be created by default.

Resources

• https://stackoverflow.com/questions/7998302/graphing-a-processs-memory-usage
• http://brunogirin.blogspot.com.au/2010/09/memory-usage-graphs-with-ps-and-gnuplot.html