[389-users] 389 vs Sun DS ldapmodify performance

[Rich Megginson]

On 04/18/2012 01:33 PM, Michael Gettes wrote:
>
> Hey russ, I've got the same problem for large groups using member... 
> We are coming from an openldap world so not much use of uniquemember yet.
>

It's essentially the same problem - it doesn't matter if you use member 
or uniquemember.

> On Apr 18, 2012 2:10 PM, "Russell Beall" <beall at usc.edu 
> <mailto:beall at usc.edu>> wrote:
>
>     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
>     beall at usc.edu <mailto:beall at usc.edu>
>     ==============================
>
>
>
>
>
>
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