SoPerf is a gem written in 2015 during my first few months writing Ruby as an intern at the analytics startup, Zaius. It exists to visually render parallel performance metrics in the terminal, a la the Chrome Dev Tools Timeline.
It takes a hash including some Range objects and renders them into something bright, colorful, informative, and terminal scaled. I can confirm it works with OSX and Linux. Not 100% sure about Windows compatibility, but I guess someone will find out someday.
Feel free to check the project out at Github.