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[OX User] LDAP Performance & Tuning

Garry gkg at gmx.de
Wed Apr 11 12:11:51 CEST 2007


Peter Schober wrote:
> * Garry <gkg at gmx.de> [2007-04-10 09:05]:
>> on a customer box (with ~250 active users) we've noticed massive
>> load on the LDAP server ... this box is pretty well equipped (dual
>> Xeon = 4 cores, w/ 6GB memory), so the box performance itself
>> shouldn't be much of a problem ... anyway, LDAP numbers are pretty
>> disturbing at times ...
> 
> note that slapd should hardly make *any* use of your CPUs (unless for
> slapindex, which only needs to be run once after changing your indices
> in slapd.conf) when properly configured (bdb backend, DB_CONFIG).

Well, first results this morning with all the users "storming" the 
server as they usually do around 8AM resulted in EXTREME improvement in 
performance ... hardly any lag, system load stays nicely in the 0.5-0.8 
range, slapd hardly takes up any CPU (47 CPU seconds since restart last 
night ... normally, it took up 47 CPU seconds in something like 30 
seconds on the clock or less ...)

So, thanks everybody who pointed out the real problem here ;)

-garry



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