Are you adding non-value classes to the list yourself, or is this just with the
small number of default listings?
This method will get called when you evaluate the hash code of a Java object in
the Rete memory; this will happen often during pattern matching. There's
actually enough room to cache the hash code in the members of the Value class
that are unused for Java object values, so we could try that as a performance
improvement. Do you have a source license, so I could send you a patch to try?
From: <Nguyen>, Son Nguyen
Date: Thursday, December 13, 2012 11:04 AM
Subject: JESS: [EXTERNAL] Jess in a multithreaded environment
Hi Jess experts,
We use Jess in a multi-threaded environment and have experienced some
performance degradation when going from a single thread to multiple threads.
Our implementation uses the Slot Specific feature.
Using a Java profiler, HashCodeComputer.isValueObject() stood out as one of the
main contributing factors, if not the most likely, to the degradation