A partial answer:
I wrote a script under Pywikipedia framework to search templates with many
parser functions that are worth to convert to Lua now:
[[mw:Special:Code/pywikipedia/11099]]. I hope that it helps you to find
good targets.
The result looks like
Is there some list or tool that identifies Wikipedia
pages that are
slow to parse?
My interest is mainly in the context of Lua deployment. I would like
to identify non-obvious templates that may be having an appreciable
impact on performance. (As opposed to things like {{cite}}, where the
performance problems are already well-known.)
I don't suppose the database stores a "time for last parse" somewhere?
On enwiki we've already made Lua conversions with most of the string
templates, several formatting templates (e.g. {{rnd}}, {{precision}}),
{{coord}}, and a number of others. And there is work underway on a
number of the more complex overhauls (e.g. {{cite}}, {{convert}}).
However, it would be nice to identify problematic templates that may
be less obvious.
-Robert Rohde
aka Dragons_flight
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