25% performance degradation reported between SwitchYard version 1.1.1-p2-redhat-2 (ER8) and 1.1.1-p4-redhat-1 (CR1). Testcase can be found in the related bugzilla.

Rob suggest that we need to add a fix to transformers that was similar to the one we added for validation (i.e. populate the map with a NULL transformer identifier, so we don't need to continually try to recreate it).