Shibboleth Developers

[Jim Fox <>]

I've done a few load tests on our shib 2.1 test cluster.  

 - One system is a single-processor, Intel 2.8Ghz; 
 - The other is a vmware client on a 1.6Ghz system.  
 - The cluster is hooked together with Terracotta.
 - Each query resolves attributes from three ldap servers
   and one postgres DB.

1) SAML1 style authn queries direct to the idp.  (with attribute push)

 - these are with an idp session pre-established

 - max throughput on the 2.8 ghz system is about ten requests per second,
   regardless of load.

   - load factor of one, about 100ms response time
   - load factor of three, about 300ms
   - load factor of ten, about 1000ms
 
 - the 1.6 Ghz system was less than half as productive, 
   with a throughput of four requests per second.


2) SAML2 logins via an SP (with attribute push)

 - these consistently took about 60% longer at the IdP.
 - and about 100% longer at the SP - to process the assertion.

Jim