Ian G Batten <ian.batten@xxxxxxxxxxxxxx> wrote: > > On 09 Oct 07, at 1522, Blake Hudson wrote: >>> >> Could database type differences (or contention) be an issue here? What >> database format are each of you using? > > Yes. With skiplist (took me several stabs at it to get the > conversion to work) it takes 0.19s. Versus ~250s with BDB. A slight > difference. Thanks for pointing me at the idea. Yes, this is the expected result. Skiplist is good in enumerating as there is always a "lane" pointing from one mailbox to the next one without skipping. Berkeley DB is very fast in doing _real_ random accesses and to insert new or changed values, but it does a lousy lob in enumerating "entries" alphabetically or numerically. So it is perfect to use Berkeley for the tls session database, for annotations, for duplicate delivery suppression and - as Bron Gondwana does - to cache status data. Pascal ---- Cyrus Home Page: http://cyrusimap.web.cmu.edu/ Cyrus Wiki/FAQ: http://cyrusimap.web.cmu.edu/twiki List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
