Hello, Please review these changes backported to 8u: CR: JDK-8133023: ParallelGCThreads is not calculated correctly webrev: http://cr.openjdk.java.net/~poonam/8133023/webrev.8u/ JDK9 changeset: http://hg.openjdk.java.net/jdk9/jdk9/hotspot/rev/0b22be0db834 Thanks, Poonam