Rodrigo Costa wrote:
Howard, The idea was exactly to use the dncachesize large so the search or random database access would not be affected. The issue is that after DB is filled any search hangs time by time even there are many entrances into cache. I was expecting that to remove or re-cache an entrance some performance affectance would occur but if ldapsearch would be stopped and a new one started the search would be faster since there are millions of entrances already cached.
Except that there *aren't* million of entries already cached, you've only cached a few thousand entries. And when you have such a tiny fraction of the database cached, the cache is going to be mostly useless for random access patterns. At this point you're making me repeat myself, so I'm stopping here.
By the way, an "entrance" is a doorway. A directory object is an "entry" ... -- -- Howard Chu CTO, Symas Corp. http://www.symas.com Director, Highland Sun http://highlandsun.com/hyc/ Chief Architect, OpenLDAP http://www.openldap.org/project/