Re: How do I verify that Openldap is using multiple threads on Freebsd5.2

[Pierangelo Masarati <ando@sys-net.it>]

James Saint-Rossy, Thomas wrote:

> I am trying to verify that my server running "FreeBSD 5.2.1-RELEASE" 
> is actually using multiple threads for Openldap.  The system has dual 
> p4's with hyper threading.  I've been searching the web and archive 
> with no luck.  Any insight would be appreciated.
>
> When I do ps -axH all I get back is one process:
> 73670  ??  SLs    0:04.19 /usr/local/libexec/slapd -h 
> ldapi://%2fvar%2frun%2fopenldap%2fldapi/ ldap://0.0.0.0/ -u ldap -g ldap
>
> Top -H is similar and appears to only be using one of the processors 
> at a time
> 70022 ldap          96    0   182M 62380K select 3   1:09  0.00%  
> 0.00% slapd
>
> The FreeBSD port seems to be passing "--with-threads=posix" to 
> configure so I assume it's compiled with threads
>
> Thanks, James Saint-Rossy.


Depending on the version of OpenLDAP, you can search for attribute 
"monitoredInfo" under "cn=Max,cn=Threads,cn=Monitor"; this should tell 
you how many threads slapd is configure to use at most.  I don't know 
what it's supposed to return if compiled without threads, but on my test 
system HEAD returns

[masarati@ando tests]$ ../clients/tools/ldapsearch -x -H ldap://:9011 -b 
cn=max,cn=Threads,cn=monitor @extensibleobject
# extended LDIF
#
# LDAPv3
# base <cn=max,cn=Threads,cn=monitor> with scope subtree
# filter: (objectclass=*)
# requesting: @extensibleobject
#

# Max, Threads, Monitor
dn: cn=Max,cn=Threads,cn=Monitor
objectClass: monitoredObject
structuralObjectClass: monitoredObject
cn: Max
monitoredInfo: 16
creatorsName: cn=anonymous
modifiersName: cn=anonymous
createTimestamp: 20041008215245Z
modifyTimestamp: 20041008215245Z
entryDN: cn=Max,cn=Threads,cn=Monitor
subschemaSubentry: cn=Subschema
hasSubordinates: FALSE

# search result
search: 2
result: 0 Success

# numResponses: 2
# numEntries: 1

p.



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