Hi devs, I have opened a bug report (bug 13690) to show you the results of benchmarks I did between 3.16 and 3.18. I also submitted 3 patches to try to fix the performance problem in 3.18. Hope to get some feedbacks and see you involved in this real issue. Cheers, Jonathan http://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=13690