Hello, We have experienced a similar issue. Unfortunately we too have a confidential dataset we cannot share.
Our dataset started slowing down at about 1.7m entries. With slapcat/slapadd tools I can reliably reproduce the issue: - first I add about 1.7m entries with slapadd to an empty mdb database - I test with a search operation that returns a single entry and it performs as expected, about 0.06s - next I add a single entry with slapadd - after this the exactly same search operation that returns a single entry slows down significantly, about 1.37s With the new idlexp parameter set to for example value 17 this slow down issue no longer happens with our dataset. I don't understand idlexp parameter well enough. My fear is that idlexp tuning is not actually fixing this issue, instead the issue is simply postponed. Any ideas or help would be greatly appreciated! Thanks, Petteri
