We have an application running with similar load on Pega 7.1.8 and 7.2.2 . The application on the two versions is not identical but 80% same. Application on 7.1.8 consumes 2 GB heap with 4 GB set as max and the application on 7.2.2 use 5.4 GB heap with 6 GB set as max. both have 2 GB min set. GC happening properly. Does Pega 7.2.2 require more JVM heap than 7.1.8 ?? Any recommendations or suggestions on the heap recommendations for 7.2.2. Observed huge caching happening with 7.2.2 during load test.