In our Cloud Systems Architecture course we were introduced to ApacheBench, a popular benchmarking tool. We created a number of REST servers and a load balancer, and tested the performance of our application with varying numbers of REST servers running, and at different concurrency levels. Instead of manually running each test and copying the results into a spreadsheet, I decided to write a Bash script to do all of that for me. The script writes data to files, and when it’s finished I ran a python Plotly script to generate a performance graph.