IdP Heap Management

[Jim Fox]

While load testing out IdP3.2 installation I had the opportunity to do 
some investigation into garbage collection choices, parameters and 
performance.  Some of this is described on the contrib page.

   https://wiki.shibboleth.net/confluence/x/ewN6AQ

The surprise is that most sites might benefit from doing a couple of 
manual full collections sometime in the middle of the night.

Jim