Template:Slow

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Revision as of 17:23, 5 February 2013 by Maiden taiwan (talk | contribs) (see bug report)
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Warning: This keyword can produce very slow and inefficient queries on your MediaWiki system, potentially impacting performance for all users. (See bug report.)

Background

This template was written by User:Maiden_taiwan after the DPL createdby keyword hurt performance on his MediaWiki system significantly. On a MediaWiki site with 100,000 articles and 3,000 users, this DPL took 2.5 minutes to run: 

<dpl>
namespace=
createdby=someuser
</dpl>

People were making these DPL calls all the time to find out what articles they had created. When two of these ran at once, it significantly hurt wiki performance.

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