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Re: back-bdb IDL limitations

Oh I see, you were using your group commit type scheme,
so even with only a few commits per second, you'll see large
numbers of entries per second.
----- Original Message -----
Sent: Friday, March 04, 2005 11:20 AM
Subject: Re: back-bdb IDL limitations

The disk used in the experiment is the Seagate ST336753LC (15K RPM).  Write caching was disabled in the experiment.
- Jong-Hyuk

Jong Hyuk Choi
IBM Thomas J. Watson Research Center - Enterprise Linux Group
P. O. Box 218, Yorktown Heights, NY 10598
email: jongchoi@us.ibm.com
(phone) 914-945-3979    (fax) 914-945-4425   TL: 862-3979

"David Boreham" <david_list@boreham.org>
Sent by: owner-openldap-devel@OpenLDAP.org

03/04/2005 12:57 PM

        To:        <openldap-devel@OpenLDAP.org>
        Subject:        Re: back-bdb IDL limitations

From experiments, I didn't see a significant reduction in the population time by the removal of the transactions. The experimental data shows instead that it is the number of database operations which has more effect on the performance of the directory population.
Sounds like you tested on a disk with write-back-caching ?
Otherwise you should be seeing only a few tens of
commits per second due to physical disk rotation speed.