[389-users] Recommended SLAPD cache sizes

Is there some formula or recommendation on determining what would be the optimal cache settings for a directory server (389-ds of course) with following sizes? I looked at the DS 10 Admin Guide online and am getting conflicting information. But the manual shows a table and suggests that the max size for the cn=config dbcache is 512MB. But I tried with 5GB and it appears to work fine with it, although over time start to see negative values (prob not enough cache) and roevicts while running the dbmon.sh script. __db files = ~6GB groupRoot = 1.5GB userRoot = 20GB What values would yield best performance for: cn=config dbcache? currently set to 5GB but are still seeing lots of roevicts. As much userRoot entry cache? currently set to 21GB (hit ratio so far at 95%) groupRoot entry cache? currently set to 2GB (hit ration so far at 96%) Virtual machine configured with 8CPU, 128GB RAM. Load is in the low 20's with occasional spikes to high 20's. Paul M. Whitney, RHCSA, CISSP Chesapeake IT Consulting, Inc. 2680 Tobacco Rd Chesapeake Beach, MD 20732 Work: 443-492-2872 Cell: 410.493.9448 Email: paul.whitney@chesapeake-it.com<mailto:paul.whitney@chesapeake-it.com> CONFIDENTIALITY NOTICE The information contained in this facsimile or electronic message is confidential information intended for the use of the individual or entity named above. If the reader of this message is not the intended recipient, or an employee or agent responsible for delivering this facsimile message to the intended recipient, you are hereby notified that any dissemination, or copying of this communication is strictly prohibited. If this message contains non-public personal information about any consumer or customer of the sender or intended recipient, you are further prohibited under penalty of law from using or disclosing the information to any third party by provisions of the federal Gramm-Leach-Bliley Act. If you have received this facsimile or electronic message in error, please immediately notify us by telephone and return or destroy the original message to assure that it is not read, copied, or distributed by others.