How to assign more memory to young gen with NewRatio JVM option

Question

How to assign more memory to young gen with NewRatio JVM option? Since NewRatio defines ratio of old to young gen, if I set this parameter as 1:3 it says invalid value. I want to assign thrice memory to young gen. How can I do with NewRatio?

Answer 1

The NewRatio has to be a whole number. If you want a higher new to old ratio you need to to set it explicitly. e.g. I have used settings like

-Xmn24g -Xmx26g