Am Thu, 24 Feb 2011 15:53:43 +0100
schrieb <Juergen.Sprenger(a)swisscom.com>:
Hi,
we had some performance issues on our ldap servers running Solaris 10
sparc.
I did some tests using slamd
http://www.slamd.com/ and got disturbing
results:
ldap-service: OpenLDAP 2.4.23, setup identical on both boxes,
threads=64, identical content.
box1:
hardware: Sun Microsystems sun4v SPARC Enterprise T5120
memory:32 GB RAM
os: Solaris 10 s10s_u9wos_14a
searches (avg/second): 1521
box2:
hardware: AMD 64 phenom 9850
memory: 8 GB RAM
os: Linux dsv00000 2.6.36.2 #1 SMP Mon Dec 27 10:09:29 CET 2010
x86_64 AMD Phenom(tm) 9850 Quad-Core Processor AuthenticAMD GNU/Linux
searches (avg/second): 22968
I am looking for some hints to improve performance on box1 to a
similar level as on box2 or an explanation why on box1 performance is
so bad.
As slapd.conf, ldap.conf and DB_CONFIG are identical there should not
be such a big gap in performance.
It is hard to guess, as you didn't provide any build information,
but /dev/poll vs. libpthread and no. of IO's might be a hint.
-Dieter
--
Dieter Klünter | Systemberatung
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