Recent Posts

From hell to HTML: releasing a Python package to easily work with Wikimedia HTML dumps

Announcing mwparserfromhtml, a new library that makes it easy to parse the HTML content of Wikipedia articles

Long exposure of highway with downtown skyscraper in the background of an unidentified city. There are green grass hills on both sides and a bright moon in the sky.

Perf Matters at Wikipedia in 2016

Looking back at our ups and downs.

Gelsenkirchen-Erle, pipeline along the Emscher

How we’re building our Kubernetes pipeline in GitLab

Our deployment pipeline helps our developers build, test, and release Docker images to our production Kubernetes. Now we’re migrating the pipeline to GitLab and seizing the chance to refine our tools.

Web Perf Hero: Valentín Gutierrez

Today we celebrate two numbers: 25% lower latency for ATS backend requests at the p75, and up to 1000X reduction of ATS disk read latency at the p999.

A graph of SPDY usage vs time to first paint

HTTP/2 performance revisited

Deploying HTTP/2 support to the Wikimedia CDN significantly changed how browsers negotiate and transfer data during the page load process. We found regressions in performance during the transition and are sharing the lessons we learned.

Two people sitting cross-legged while working on their computers. They seem to be discussing code.

Join the Wikimania Hackathon, August 12-14 2022!

The Wikimania 2022 Hackathon is a free, online event where anyone interested in Wikimedia technology can work together on projects, learn new skills, and meet other technical contributors. Don’t miss this opportunity to come together with other Wikimedia technical community members!