Slightly off-topic, but the web-based visualization tool - Chromium Catapult's Trace-viewer [0] - used to present the profiling data here is pretty nice I think

Slightly off-topic, but the web-based visualization tool - Chromium Catapult's Trace-viewer [0] - used to present the profiling data here is pretty nice I think. The input JSON data format for Trace-viewer is also simple, so it's easy to to leverage it when creating a profiling tool. As a simple example I built a POSIX function call tracer for Linux - cpuusage [1] - which uses it. [0]: https://github.com/catapult-project/catapult/blob/master/tracing/README.md https://github.com/catapult-project/catapult/blob/master/tra... [1]: https://github.com/d99kris/cpuusage https://github.com/d99kris/cpuusage