Debugging production with X-Wikimedia-Debug

20 February 201915 June 2026 by Kosta Harlan

Perf Matters at Wikipedia in 2015

14 February 201915 June 2026 by Timo Tijhofand Aaron Schulz

Magic numbers

24 January 201915 June 2026 by Gilles Dubuc

Why performance matters

12 December 201815 June 2026 by Ian Marlier

Machine learning: how to undersample the wrong way

15 October 201815 June 2026 by Gilles Dubuc

Best friends forever

3 October 201815 June 2026 by Peter Hedenskog

Performance testing in a controlled lab environment – the metrics

21 September 201815 June 2026 by Peter Hedenskog

Mobile web performance: the importance of the device

22 June 201815 June 2026 by Gilles Dubuc

Thumbor support for private wikis deployed

22 February 201815 June 2026 by Gilles Dubuc

Welcome to Diff

Welcome to Diff, a community blog by – and for – the Wikimedia movement. Join Diff today to share stories from your community and comment on articles. We want to hear your voice!

Subscribe to Diff via Email