OpenLDAP Experiments

These are personal experiments I'm performing for now. After I validate their correctness and make them easily reproducable I will move these to the performance section.

Materials Listing

These are the LDIF files and configuration files used for running the following tests with ApacheDS 1.0-RC4-SNAPSHOT and OpenLDAP 2.3.

LDIF to add 10K entries
LDIF to del 10K entries
OpenLDAP BerkeleyDB Configuration
OpenLDAP slapd.conf
ApacheDS server.xml
ApacheDS 1.0-RC4-SNAPSHOT (07112006) Linux
ApacheDS 1.0-RC4-SNAPSHOT (07112006) Solaris Sparc

Single Processor Reference Machine (newton)

Uname Output

uname -a

akarasulu@newton:~$ uname -a
Linux newton 2.6.15-25-386 #1 PREEMPT Wed Jun 14 11:25:49 UTC 2006 i686 GNU/Linux

/proc/cpuinfo Contents

/proc/cpuinfo

akarasulu@newton:~/tmp$ cat /proc/cpuinfo
processor       : 0
vendor_id       : AuthenticAMD
cpu family      : 6
model           : 10
model name      : AMD Athlon(TM) XP
stepping        : 0
cpu MHz         : 2500.561
cache size      : 512 KB
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 1
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse syscall mmxext 3dnowext 3dnow
bogomips        : 5005.28

/proc/meminfo Contents (partial)

/proc/meminfo

akarasulu@newton:~/tmp$ cat /proc/meminfo
MemTotal:      2596692 kB
SwapTotal:     3156636 kB
VmallocTotal:   114680 kB

JVM Version

java -version

akarasulu@newton:~$ java -version
java version "1.5.0_07"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_07-b03)
Java HotSpot(TM) Client VM (build 1.5.0_07-b03, mixed mode, sharing)

Test I

ApacheDS Heap Settings

You must modify the JVM heap startup and maximum settings in the apacheds init script for these experiments.

In this test we perform the following operations in order using OpenLDAP clients. ApacheDS runs on port 10389 on my machine while OpenLDAP's slapd runs on port 389. Just presume changing the port setting to perform these opertations on the other servers. Only one of these operations is run at the same time with minimal background activity.

add operation

time ldapadd -h localhost -p 389 -D 'cn=admin,dc=example,dc=com' -x -w secret -f add.10k.ldif >> /dev/null

search operation

time ldapsearch -h localhost -p 389 -D 'cn=admin,dc=example,dc=com' -x -w secret -b 'dc=example,dc=com' 1.1 > /dev/null

The search operation is run 3 times. The first to flood the cache. The second and third to get results with all entries in cache.

del operation

time ldapdelete -h localhost -p 389 -D 'cn=admin,dc=example,dc=com' -x -w secret -f del.10k.ldif

Page Operations

Browse Space