Martin Spier Carbon-based bipedal life form descended from an ape.


Here you can find a few projects I’m currently involved with, in one way or another.


Vector is an open source on-host performance monitoring framework which exposes hand picked high resolution system and application metrics to every engineer’s browser. Having the right metrics available on-demand and at a high resolution is key to understand how a system behaves and correctly troubleshoot performance issues.


MyAdventure is a place to share your adventures with the world, from your weekend trip to Yosemite, to your 12-month overland adventure in Africa. We know that every detail of your adventure can inspire and help others to do the same. That’s why MyAdventure provides a platform for you to share everything, integrating satellite trackers, social networks, interactive maps with an easy-to-use mobile app that works anywhere, even without internet access!


A D3.js plugin that produces flame graphs from hierarchical data. Flame graphs are a visualization of profiled software, allowing the most frequent code-paths to be identified quickly and accurately.



burn 🔥 is a CLI tool to convert performance profiles to hierarchical data structures that can be visualized as flame graphs.


An archive of blog posts about performance and related subjects.

These and a other interesting projects I’m working on can be found on GitHub!