Comparing OpenLDAP 2.3.39 to RE24, 2.3.39 gets about 20.3K auths/sec on a 1M entry hdb database, vs 23.3K auths/sec for RE24 on our test machine. So about a 15% gain, most of which is probably the lightweight dispatcher. (Will have to test again with back-null to see for certain.) -- -- Howard Chu Chief Architect, Symas Corp. http://www.symas.com Director, Highland Sun http://highlandsun.com/hyc/ Chief Architect, OpenLDAP http://www.openldap.org/project/