https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=16168 --- Comment #1 from Jacek Ablewicz <ablewicz@gmail.com> --- Created attachment 49677 --> https://bugs.koha-community.org/bugzilla3/attachment.cgi?id=49677&action=edit Bug 16168: Eliminate unneeded C4::Context->dbh calls in C4/Biblio.pm Right now, ->dbh calls are actually quite expensive (they involve DB connection health checks, each and every time). Some speed-sensitive subroutines inside C4/Biblio.pm (GetMarcStructure, GetAuthorisedValueDesc) have this statement my $dbh = C4::Context->dbh; on top of the code, but they don't always/don't usually need DB handle - not at that stage at least. This trivial patch eliminates unneeded ->dbh calls in those subroutines. With it, average GetMarcStructure() running time goes down from 14 miliseconds to 9 miliseconds (on top of Bug 16166), it also makes catalogue search profiling a bit easier. Test plan: 1) apply patch 2) ensure that catalogue searches are still working 3) run t/*Biblio* tests -- You are receiving this mail because: You are watching all bug changes.