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redhat 7.1

Hi all,

I just installed openldap on redhat 7.1 (deinstalled any pre-installed
ldap stuff first). I'm using version 2.0.22. Now I have a hardware raid
controller and a dual cpu machine (730 Mhz each). In my slapd.conf I have
for performance increase:

schemacheck off
loglevel 0
database        ldbm
cachesize 100000
dbcachesize 10000000
# Indices to maintain
index   objectClass,mail,uid    eq

(I only search on uid or mail)

And also, on the system:
/sbin/sysctl -w fs.file-max=16384
/sbin/sysctl -w net.ipv4.tcp_fin_timeout="10"
/sbin/sysctl -w net.core.netdev_max_backlog="1000"

Now can anybody give any hints on getting the most performance out of
openldap? When benchmarking 250.000 objects I get 125 ops/sec (90% reads,
10 % modifs/adds/deletes) but I would like to get more ...
So any hints on performance improvements are welcome, like kernel
parameters, extra indices (do I need to index cn?), ...

With friendly regards,