[OSM-dev] Profiling the wiki

[mmd]

Am 20.08.2018 um 18:38 schrieb Andrew Hain:
> There are sometimes reports that the wiki takes a long time to respond.
> I am interested in finding out what is taking the time. In particular I
> would like to know if it is worthwhile to copy the Lua version of the
> {{LangSwitch}} template from Wikimedia Commons.
> 
> --

This seems to be a follow up on
https://lists.openstreetmap.org/pipermail/talk/2018-July/081066.html

On the verdy_p user wiki page I mentioned back then, you will find
additional performance traces (before the last wiki update) and some
javascript code to get template runtimes for each template.

As an example: https://wiki.openstreetmap.org/wiki/Map_Features takes
very long time to load, with the following templates being processed:

100.00% 25790.447      1 -total
 77.67% 20031.068   1115 Template:Icon
 77.27% 19927.969   1128 Template:LangSwitch
 34.22% 8825.401   8182 Template:Langcode
 23.93% 6172.591   1116 Template:LL
 22.62% 5833.344      1 Template:Map_Features:shop
 19.36% 4992.882   3698 Template:LangPrefix
 15.48% 3992.006      1 Template:Map_Features:amenity
  9.91% 2557.019      1 Template:Languages
  9.90% 2552.810      1 Template:Languages/div


Maybe you could also do a bit of research on Template:Icon,
Template:LanguageLink, Template:Languagename and Template:Langcode.

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