Frustrated by the lack of any LDAP performance checker that was simple to configure, easy to build, and actually worked, I wrote this: https://github.com/arr2036/ldapperf https://github.com/arr2036/ldapperf/archive/v0.1.tar.gz Maybe someone else will find it useful. With a set of 10,000 objects, with random object retrieval (using full DN and base scope) with OpenLDAP 2.4.39 + LMDB on a 12 core E5-2697 v2 @ 2.7Ghz with Ubuntu 14.04, 24 threads on the server, 50 threads on ldapperf i get around 45,000 TPS. Retrieving the same object multiple times (possibly taking advantage of some sort of query cache) I get between 60,000-66,000 TPS. Now you can prove (or not) that FreeRADIUS is the bottleneck :) Arran Cudbard-Bell <a.cudbardb@freeradius.org> FreeRADIUS development team FD31 3077 42EC 7FCD 32FE 5EE2 56CF 27F9 30A8 CAA2