Does anybody have a pointer
to any performance comparisons between Sun DS and 389?
I was extremely happy with the performance boost using
389 on a Linux VM which is 5-8 times faster for ldapsearch
operations than the older Sun machines with Sun DS 6.3.
In testing one of our most important use cases just
now, I find that the ldapmodify speed is many many times
slower. This doesn't make much sense, so I think I'm
doing something wrong or having something misconfigured.
Earlier I improved the write performance by using large
db cache sizes and moving the nsslapd-db-home-directory to
tmpfs. Now most modify operations have very little I/O
wait except when occasionally flushing the index files and
such, and yet, there is a CPU pegged for very long periods
of time, orders of magnitude higher than on Sun DS.
Is there any documentation on ldapmodify performance
that I could review? Google searching seems eerily silent
on the issue… (which also leads me to believe I have
something misconfigured if nobody has been asking about
the issue…)
The particular use case I am working with involves
replacing large quantities of uniqueMember values on
entries in ou=groups.
Thanks,
Russ.
==============================
Russell Beall
Programmer Analyst IV
Enterprise
Identity Management
University of Southern
California
==============================
