plot-sysjitter

Graph the results measuring system jitter due to interrupts.

Dependencies

The plotting routine reads the output of the sysjitter program.

https://github.com/alexeiz/sysjitter

Command Line Arguments (CLAs)

Plot system jitter using the output summary of the sysjitter utility

options:
  -h, --help            show this help message and exit
  --summary_file SUMMARY_FILE
                        Path to sysjitter summary file
  --freezable_file FREEZABLE_FILE
                        Path to freezable.out file
  --image_file IMAGE_FILE
                        Path to output image
  --author_name AUTHOR_NAME
                        Name of the author
  --author_email AUTHOR_EMAIL
                        Email of the author
  --plot_title PLOT_TITLE
                        Title of the plot
  --plot_summary PLOT_SUMMARY
                        Summary string of the plot

Usage

First run sysjitter

./sysjitter --runtime 60 --verbose 300 > summary.txt

Next, provide the two output file as input to plot-sysjitter and provide an output file for the graph.

./plot-sysjitter --summary_file ./summary.txt --image_file ./jitter_study.png --author_name Ed --author_email ed@edmole.com 

The output below shows resulting jitter_study.png file. In the plots below the data was captured from a Raspberry Pi 5, running the Raspbian OS Lite.