Extension:ImageMetrics

MediaWiki extensions manual

ImageMetrics Release status: beta
Implementation	Ajax, Database
Description	Logs image-related metrics from client-side
Author(s)	Gergő Tisza (Tgrtalk)
Latest version	0.0.1 (2014-08-20)
MediaWiki	1.24+
PHP	5.3+
Database changes	No
License	GNU General Public License 2.0 or later
Download	Download extension Git [?]: Download Git master browse repository (GitHub) commit history code review README
Parameters $wgImageMetricsSamplingFactor
Hooks used BeforePageDisplay ResourceLoaderGetConfigVars
Translate the ImageMetrics extension if it is available at translatewiki.net
Check usage and version matrix.
Issues	Open tasks · Report a bug

The goal of the ImageMetrics extension is to log image-related client-side metrics. Currently, the only metric being tracked is the loading time of file page images.

What data is logged?

See the ImageMetricsLoadingTime schema.

Requirements

The EventLogging extension is required for this extension to work.

Download

The extension can be retrieved directly from Git ^[?]:

• Browse code
• Some extensions have tags for stable releases.
  • Browse tags
  • Select the tag
  • Click "snapshot"
• Each branch is associated with a past MediaWiki release. There is also a "master" branch containing the latest alpha version (might require an alpha version of MediaWiki).
  • Browse branches
  • Select a branch name
  • Click "Continue"

Extract the snapshot and place it in the extensions/ImageMetrics/ directory of your MediaWiki installation.

If you are familiar with git and have shell access to your server, you can also obtain the extension as follows:

cd extensions/
git clone https://gerrit.wikimedia.org/r/mediawiki/extensions/ImageMetrics.git

Installing / Configuration

To enable, add this to your LocalSettings.php:

require_once "$IP/extensions/EventLogging/EventLogging.php";  // required dependency
require_once "$IP/extensions/ImageMetrics/ImageMetrics.php";
$wgImageMetricsSamplingFactor = 10000;  // log 1:10,000 requests.

To install in a MediaWiki-Vagrant development environment, use the imagemetrics role.