profiling output from Commons:Featured_picture_candidates/Log/October_2013

Patch awaiting review at gerrit change 90769

$title->getPageLanguage() gets called a lot (sometimes in the thousands of calls). Usually for the same page. This calls a hook, which can be somewhat expensive. There should be an in-process cache for it.

In particular, for https://commons.wikimedia.org/wiki/Commons:Featured_picture_candidates/Log/October_2013 we have the following profiling lines:

22.42% 12.819275 5118 - hook: PageContentLanguage
20.58% 11.766860 5118 - PageTranslationHooks::onPageContentLanguage

There may be more things that can be optimized for that page perhaps. I included some profiling data as an attachment.

For original context see https://commons.wikimedia.org/w/index.php?title=User_talk:Daniel78&oldid=107548310#Bot_doesn.27t_close_new_nominations

Version: 1.22.0
Severity: normal

Attached: