Consider for a moment, how many Fortune enterprises have Active Directory in a production environment. Out of the Fortune 500, Sun is the only hold out. You would think that if Active Directory were so pervasively implemented that software vendors would want to deeply integrate with it, but nothing could be further from the truth.
I would disagree. OpenLDAP is right up there, in fact most enterprises don't use AD[?] for true Directory requirements. Speak to Suretec and Symas for more information.
I recently tested Isode's M-Vault 14. For the most part there were no surprises, we were 5-6 times faster on the 1M entry DB. Load times were comparable, with OpenLDAP at around 3 minutes (as before) and Isode at around 4 minutes. While OpenLDAP delivered over 29,000 auths/sec using 8 cores, Isode delivered only 4600 auths/sec. (And there's still the interesting result that OpenLDAP delivered almost 31,000/sec using only 7 cores, leaving one core reserved for the ethernet driver.)
Warning: Use of undefined constant CHARSET_NATIVE - assumed 'CHARSET_NATIVE' (this will throw an Error in a future version of PHP) in /home/suretecsystems/www/blog/serendipity_config.inc.php on line 182