December 2006
Intermediate to advanced
166 pages
3h 59m
English
book
Java Stand-alone Applications on z/OS Volume II
by Alex Louwe Kooijmans, Jonathan M Barney, Patrick Bruinsma, Venugopal Kailaikurthi, Christian Strauer, Kenichi Yoshimura
Content preview from Java Stand-alone Applications on z/OS Volume II
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Chapter 1. Introduction 3
– Security
IBM Java runtime improvements
– A better way of doing garbage collection (GC). There are now four
possible configurable ways of doing garbage collection. Depending on the
type of workload, a certain way of doing GC can be configured that leads
to better performance of the Java environment; refer to “Garbage
collection” on page 13.
– The Just-In-Time (JIT) compiler has been improved in a number of areas:
• Asynchronous compilation of methods
• Multiple levels of optimization (five levels)
• Profiling-driven recompilation
– Virtual Machine improvements
• Support for the usage of shared classes, which makes it possible to
load classes just once, cache them and reuse them from multiple JVMs
• Profiling and debugg ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.