There were lots of pages talking about Wikipedia's Parser cache hit rate (e.g. https://en.wikipedia.org/wiki/Wikipedia:Wikipedia_Signpost/2012-03-19/Technology_report)
However, I can't find any page documented in mediawiki.org about how to count ParserCache hit rate for their own wiki. Currently I knew that my Varnish cache hold about 70% hit of request, uAPC 85%, and redis 80%. Is there a way to only count hit rate for ParserCache?