The most common interaction with a running JVM is to check the memory usage in the heap and stack. The most common adjustment is performance-tuning the JVM’s memory settings. Before Java, all ...

Java memory consists of three components: the heap, stack and metaspace (which was previously called permgen). Metaspace is where Java keeps your program’s unchanging info like class definitions.

Grails Founder: What Java Developers Don’t Know About Memory Can Cost Them Money in the Cloud. ... Java Doesn’t Have to Be Heavy “People often think Java means heavyweight,” Rocher says, ...