JVM tuning section of "Mahout in Action" book recommends to use the following GC instead of the default one:
-XX:+UseParallelGC -XX:+UseParallelOldGC. Has anyone tries running servlets based on Mahout with UseConcMarkSweepGC instead? Latter garbage collector is known for handling PermGen in Tomcat better (especially during undeployment), but I am not yet sure how it will affect the performance of Mahout servlets. The servlets produce user- and item-based recommendations, so its memory usage and garbage collection should be as optimal as possible. Thank you, Aleksei
