RE: strange performance problem

["Howard Chu" <hyc@highlandsun.com>]

> -----Original Message-----
> From: owner-openldap-software@OpenLDAP.org
> [mailto:owner-openldap-software@OpenLDAP.org]On Behalf Of Cuong bui

> during the first 4 testruns the openldapserver used 98% cpu processing
time.
> (seen in top) After the initial 4 runs, slapd only consumes 40%-75% cpu
> processing time. somethimes it's even dropping to a few %.

This implies that the balance of time shifted from in-memory operation to
disk I/O. Why do you suppose that might be? Perhaps you have run out of cache
memory? Perhaps you have run out of disk space? Perhaps you should run
db_stat and see?

> btw: are there any documentation on implementations details
> of openldap ? if
> yes, where can i find them

All of the implementation details are spelled out explicitly in the source
code.

> :) Other documentation that might explain what i'm
> seeing is also (very) welcome.

The BDB documentation that SleepyCat provides is also required reading.

  -- Howard Chu
  Chief Architect, Symas Corp.       Director, Highland Sun
  http://www.symas.com               http://highlandsun.com/hyc
  Symas: Premier OpenSource Development and Support