Visualizations - Mark Hansen's Blog

Custom flamegraph root frames from pprof Labels: 3 frames, 'docs section', 'single.html template', index.html target_filename

pprof -tagroot: Custom Labels in Go Flamegraphs

9 months ago 4 min read Profiling Visualizations Programming

pprof -tagroot lets you break down & visualise pprof software profiles by custom, domain-specific key-value pairs (Labels, aka Tags) attached to each stack sample.

Profilerpedia: A map of the Software Profiling Ecosystem

10 months ago 4 min read Profiling Visualizations

I mapped out over 100 Profilers, what Profile Data Formats they output, and what Profiler UIs can visualise those formats: Profilerpedia

Firefox Profiler flamegraph screenshot with colored stack frames: yellow for userland and orange for kernel.

Colouring Firefox Profiler Flamegraphs

a year ago 6 min read Visualizations Programming Profiling

This post covers: Adding colours to Firefox Profiler, and some neat tricks I learned along the way: data-oriented-programming in JavaScript, data format upgrade pipelines, and developer experience in test runners and console UI.

Linux perf Profiler UIs

a year ago 12 min read Profiling Programming Visualizations

This post is a quick literature review of CPU profiler user interfaces available for analysing Linux program performance. I couldn't find any list of profiler UIs online. Hopefully this can help people find

Automating NZ Wireless Map with Google Cloud Run

2 years ago 10 min read Visualizations

Almost a year ago, I promised a post detailing how I process NZ Wireless Map's data to keep it fresh [https://www.markhansen.co.nz/automating-nz-wireless-map/]. Here it is: Recap: The Problem NZ