Manual:$wgQueryCacheLimit

Performance hacks and limits: $wgQueryCacheLimit
Number of rows to cache in 'querycache' table when miser mode is on.
Introduced in version:1.9.0 (r18162)
Removed in version:still in use
Allowed values:(integer)
Default value:1000

DetailsEdit

Number of rows to cache in 'querycache' table when miser mode is on.

This variable is related to QueryPage, a cache associated with SpecialPages.