how to run ldap search fast?

[Bing D. <Bi...@ci...>]

We are using 5.0v2p2 directory server from MessagingDirect.  

Given 500 studentIDs, Net::LDAP is used in a cgi script to retrieve
name, e-mail address, major, etc. for each ID.  Like this:

connect ldap
foreach (@studentids)
{
$t0 = new Benchmark;
$mesg = $ld->search(base => $BASEDN, scope => 'sub', filter => $filter,
attr
s => @$attributes, typesonly => 0);
$t1 = new Benchmark;
$td = timediff($t1,$t0);
}
disconnect ldap

Benchmark shows most 'search' operations contribute 0 seconds.  About
20 or so contribute 1 seconds each.  So the total execution time is 20
or even more seconds.  A note from vendor says the current DS version is
6.1v0 and it can yield 50% speed improvement.  Just  want to know how
much of this performance issue is server related?  Any suggestions on
how to run ldap search fast on the client side?

Thanks,

Bing    
 

Bing Du <bi...@ta..., 979-845-9577>
Texas A&M University, CIS, Operating Systems, Unix