This wiki has been automatically Template:Slow: Difference between revisions
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<onlyinclude><includeonly>{{note|'''Warning:''' This keyword can result in very slow and inefficient queries on your MediaWiki system, potentially impacting performance for all users (see [http://followthescore.org/dpldemo/index.php/Issue:Modifiedby_and_createdby_produce_inefficient_SQL bug report]).|error}}</includeonly></onlyinclude> |
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Latest revision as of 04:37, 29 March 2022
Used to denote expensive functions that can cause performance issues.
Background
This template was written by wikia: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.
[view | edit | purge]The above documentation is transcluded from Template:Slow/doc.