Performance
Contents
Data
Metrics
- performance.wikimedia.org. Dashboard to view performance metrics.
- MediaWiki PHP profiling (Flame Graphs; HHVM/Xenon).
- Coal graphs: A small set of key performance metrics are kept in Coal in addition to Graphite.
- Graphite. Primary real-time metric database. Dashboards at grafana.wikimedia.org.
- Received from client-side using beacons to statsv or EventLogging, or from application servers sending messages to statsd.
- Aggregated by webperf.
- Metrics include: Navigation Timing
- Tendril. Real-time MySQL (MariaDB) analytics and performance.
Logs
- Logstash. Primary log file database. Runtime errors, warnings and notices from MediaWiki, Apache, and other servers and services. Queryable from ElasticSearch through Kibana, and the aggregated log files from the command-line on mwlog1001.
Manual inspection
Backend requests
See X-Wikimedia-Debug for how to turn on request profiling. This will use XHProf to capture a profile and send it to XHGui.
ResourceLoader
- ResourceLoader (mediawiki.org)
- [wikitech-l] Inspecting page performance with mw.loader.inspect(), Ori Livneh, October 2013
| Get source code of a module |
|---|
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function getSource( module ) {
var version = mw.loader.getVersion( module );
if ( !version ) {
console.warn('Unknown module: ' + module );
return false;
}
$.ajax( {
url: mw.config.get('wgLoadScript'),
dataType: 'text',
data: {
debug: true,
only: 'scripts',
modules: module,
lang: mw.config.get('wgUserLanguage'),
skin: mw.config.get('skin'),
version: version,
raw: 1
}
} ).then( function ( data ) {
console.log( data );
} );
}
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