Hi all, I have been testing sssd - i.e. enumerating groups as per RFC2307bis (AD schema) in our (fairly large) organization and here are the results: sssd 1.5.1 - 5:08 minutes sssd 1.8.3 - 1:24 minutes Centrify (commercial product) - 34 seconds The performance gain between sssd 1.5.1 and 1.8.3 is obvious, but it is still far behind a commercial product Centrify. Note that when computing the groups membership, Centrify also considers the AD-specific 'PrimaryGroupID' attribute - this is something sssd can not do yet. Ondrej The information contained in this e-mail and in any attachments is confidential and is designated solely for the attention of the intended recipient(s). If you are not an intended recipient, you must not use, disclose, copy, distribute or retain this e-mail or any part thereof. If you have received this e-mail in error, please notify the sender by return e-mail and delete all copies of this e-mail from your computer system(s). Please direct any additional queries to: communications(a)s3group.com. Thank You. Silicon and Software Systems Limited. Registered in Ireland no. 378073. Registered Office: South County Business Park, Leopardstown, Dublin 18