Full_Name: Tim Mooney Version: 2.4.25 OS: Linux, Solaris URL: ftp://ftp.openldap.org/incoming/TimMooney-110412-04.patch Submission from: (NULL) (2001:4930:106:0:18bb:1140:fa3d:f713) As I mentioned here: http://www.openldap.org/lists/openldap-technical/201104/msg00088.html and Quanah clarified here: http://www.openldap.org/lists/openldap-technical/201104/msg00123.html The admin guide chapter on tuning still mentions that indexes are in Hash format, though that's no longer true. I've uploaded patch TimMooney-110412-04.patch against HEAD that clarifies that indexes are now also in B-tree format and so the same calculations for cache on dn2id can be used with each index. I also corrected one other typo, changing To avoid thrashing the, your cache to To avoid thrashing, your cache