Manual:$wgExpensiveParserFunctionLimit/en

Details
Maximum number of calls per parse to expensive parser functions such as PAGESINCATEGORY. At the current time, there are only four expensive Parser Functions:


 * (from Extension:ParserFunctions)
 * / (a Magic Word)
 * (a Magic Word)
 * (a Magic Word)
 * Some Lua MediaWiki-related functions (see Lua reference manual), including $3 which can be used to manually mark a Lua code path as expensive.

The count is in the html-source of the page. Even without saving, the count for any wikitext can be checked by checking the html-source of the preview page for that wikitext.