From: ara.t.howard@...
Date: 2007-04-28T05:20:05+09:00
Subject: Re: Net::LDAP vs ruby/ldap

On Sat, 28 Apr 2007, Daniel Berger wrote:

> On Apr 27, 1:07 pm, dacat <fda...@gmail.com> wrote:
>> The basic premise of this test was to see how long it would take to do
>> the following:
>>
>> 1000 Basic lookups on a known attribute/value pair over an unencrypted
>> connection using anonymous bind for each library.
>>
>> This post is for informational purposes, I knew the NET::LDAP lib
>> would be slower but I wanted to see by how much.
>> {if you are new to ruby, the reason it is slower is because its a TRUE
>> ruby implementation of the LDAP rfc. while on the other hand the ruby/
>> ldap lib is a C front end to the openldap library}
>>
>> Bottom line is -- I just figured i would share.
>> Code:
>> ----------------
>> require 'benchmark'
>> include Benchmark
>>
>> LOOP_COUNT = 1000
>> require 'ldap'
>> require 'net/ldap'
>>
>> HOST = 'somehost.com'
>> S_ATTR = 'some attribute that exists that can be lookedup'
>> S_VAL  = 'a value for the attribute that iss valid'
>> TREE_BASE = 'a valid base ex. o=com'
>>
>> class LdapTest
>>
>> def net_ldap_test
>>   ldap = Net::LDAP.new :host => HOST, :port => 389
>>   filter = Net::LDAP::Filter.eq( S_ATTR, S_VAL )
>>   ldap.search( :base =>TREE_BASE, :filter => filter ) do |entry|
>>     a=entry.dn
>>   end
>>   nil
>> end
>>
>> def ldap_test
>>   conn = LDAP::Conn.new(HOST, LDAP::LDAP_PORT)
>>   filter = "(#{S_ATTR}=#{S_VAL})"
>>   conn.search(TREE_BASE, LDAP::LDAP_SCOPE_SUBTREE, filter) do |entry|
>>     a=entry.dn
>>   end
>>   nil
>> end
>>
>> ldap_test=LdapTest.new
>>
>> Benchmark.bm(15) do |x|
>>   x.report("NET::LDAP:")   { for i in 1..LOOP_COUNT;
>> ldap_test.net_ldap_test; end }
>>   x.report("ruby-ldap") { for i in 1..LOOP_COUNT   ;
>> ldap_test.ldap_test; end }
>> end
>> end
>> ===============================================================
>>
>> My results.
>>                      user     system      total        real
>> NET::LDAP:       7.150000   0.580000   7.730000 ( 19.494588)
>> ruby-ldap        0.210000   0.120000   0.330000 ( 11.853484)
>>
>> ruby/ldap :http://ruby-ldap.sourceforge.net/
>> net::ldap :http://rubyforge.org/projects/net-ldap/
>>
>> ruby --version
>> ruby 1.8.6 (2007-03-13 patchlevel 0) [i686-linux]
>
> While it's interesting, I'm afraid I have to stick with net-ldap. The
> problem with ruby-ldap is that it segfaults in conjunction with
> WEBrick, as I know all too well.
>
> Regards,
>
> Dan

my good friend justin crawford works heavily with ruby and ldap for the
universtiy of colorado managing a huge federated authentication system.  they
use the pure ruby ldap lib because the c version is unstable.  he's been using
it for several years on a system that's serving ~ 100,000 people - so i think
it's fast enough.

fyi.

-a
-- 
be kind whenever possible... it is always possible.
- the dalai lama