Web Perf Hero: Amir Sarabadani
Today we recognize Amir’s work over the past six months which cut latencies by half!
Category: Wikimedia Performance (page 2)
Web Perf Hero: Siddharth VP
Siddharth VP (@SD0001) implemented Package files for Gadgets in T198758. This enables gadget developers to bundle JSON files, unpacked via…
Web Perf Hero: Umherirrender
@Umherirrender has initiated and carried out significant improvements to the performance of MediaWiki user preferences (T278650, T58633 , and T291748).…
Profiling PHP in production at scale
We built an efficient sampling profiler for PHP. It runs continually in production on live requests, and generates trace logs and flame graphs.
Learnings from setting up a performance device lab
My main focus the last months has been setting up a Wikimedia performance mobile device lab. We started with Android…
Web performance case study: Wikipedia page previews
Preview popups are common and requires careful scripting and styling; they can generate useful learning about performance as a reference for other front-end tasks.
How we contributed Paint Timing API to WebKit
The story of how we decided to commission the implementation of Paint Timing API, a feature that lets us observe web performance from an end-user perspective. This web browser feature tells us at what point in time content started to appear on the screen for a visitor.
Measuring the performance of Wikipedia visitors’ devices
We have been collecting microbenchmark scores for over a year. This lets us see the long-term evolution of our audience as a whole. The information gives us an idea of how fast device/operating system/browser environments improve on their own.
Organizing and running a developer room at FOSDEM
For FOSDEM 2020, the Wikimedia Performance Team organized a Web Performance devroom. In this post, they share their experience.
WikimediaDebug v2 is here!
WikimediaDebug is a set of tools for debugging and profiling MediaWiki web requests in a production environment. WikimediaDebug can be used through the accompanying browser extension, or from the command-line. This post highlights changes we made to WikimediaDebug over the past year, and explains more generally how its capabilities work.