User:Sharihareswara (WMF)/Performance guidelines

These performance guidelines aim to help MediaWiki developers avoid common performance problems that slow down MediaWiki and the site. Moved most to Performance guidelines and Performance profiling for Wikimedia code.

Job queue:

The job queue does things with the database. We use Redis to do most of the heavy lifting - to store queue itself. But the runner part is still in-house.

Sources

Presentations and documents

2010 - Roan's Wikimania talk on security, scalability and performance for extension developers
July 2011 - Tim's security & performance talk
August 2011 - Tim on performance
March 2012 - Asher on site performance, graphite, and gdash
May 2012 - "Scalable Web Architecture and Distributed Systems" by Kate Matsudaira
June 2012 - Roan's MySQL optimization tutorial (slides)
September 2012 -
Asher's Sept 2012 performance profiling tutorial
February 2013 - Sumana on graphite and ganglia
spring 2013 - Tim's performance talk at Amsterdam hackathon
January 2014 - Architecture Summit notes on performance
January 2014 - Graphite docs
? - Job class reference
March 2014 - Our use cases for Redis
April 2014 - Manual:Job queue (and, from November 2013, Manual:Job queue/For developers)
? - Manual:How_to_debug#Profiling
April 2014 - http://ljungblad.nu/post/83400324746/80-of-end-user-response-time-is-spent-on-the-frontend