Gilles Dubuc – [[WM:TECHBLOG]]

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.

Tracking down slow event handlers with Event Timing

We’re taking part in the ongoing Event Timing Chrome origin trial, in order to experiment with that API early and give feedback to its designers.

Performance perception: Correlation to RUM metrics

When we set out to ask Wikipedia visitors their opinion of page load performance, our main hope was to answer an age-old question: which RUM metric matters the most to users? And more interestingly, which ones matter the most to our users on our content.

Performance perception: The effect of late-loading banners

Unlike most websites, Wikipedia and its sister projects are ad-free. This is actually one of the reasons why our performance is so good. We don’t have to deal with slow and invasive third-parties.

Performance perception: How satisfied are Wikipedia users?

We’ve recently published research on performance perception that we did last year. The micro survey used in this study is still running on multiple Wikipedia languages and gives us insights into perceived performance.

Introducing: Autonomous Systems report

Today we’re publishing our first report of the performance experienced by visitors of Wikimedia websites, focused on the Autonomous Systems visitors are connecting from.