Links

Some interesting links concerning garbage collection

Know how about java gc

Sun / Oracle / OpenJDK

General knowledge about

• GC algorithms basics nice explanation of gc algorithms on plumbr.io
• Oracle Java Magazine: Understanding the JDK’s New Superfast Garbage Collectors
• Angelika Langer's article on garbage collection algorithms (German) in depth information on gc algorithms written in German
• Angelika Langer's article on 'Garbage Collection Tuning' (German) helpful information on tuning goals and how to achieve them in German
• Articles related to garbage collection (Alexay Ragozin) Some interesting articles about java garbage collection (mainly CMS)
• Unified JVM logging New logging system introduced with JDK 9
• Unified Logging in Java 9 with the -Xlog option Some help on using / configuring unified logging
• Java GC Causes Distilled Description for gc causes

Tuning Guides

• HotSpot Virtual Machine Garbage Collection Tuning Guide java 11 extensive information on all gc algorithms including recommendations
• HotSpot Virtual Machine Garbage Collection Tuning Guide java 8 extensive information on all gc algorithms including recommendations
• HotSpot JVM Performance Tuning Guidelines (Ionut Balosin) nice list of tuning flags and their description

ZGC algorithm

• Java's new Z Garbage Collector (ZGC) is very exciting Very good introduction into the workings of ZGC
• ZGC - Low Latency GC for OpenJDK with Stefan Karlsson and Per Liden Very good introduction into the current state of ZGC

G1 algorithm

• G1 Garbage Collector in Action understand G1 collector logs (plumber.io)
• Eric Bruno (Dr. Dobb's) explains G1 how does G1 work?
• Monika Beckwith's presentation at JavaONE 2013 on G1 Garbage-First Collector: Current and Future Adaptability and Ergonomics (including tuning tips)
• Garbage First Garbage Collector Tuning official tuning guide for G1 collector by Monica Beckwith

Shenandoah algorithm

• Shenandoah GC wiki Some information about the Shenandoah gc algorithm
• JEP 189 Shenandoah An ultra-low-pause-time garbage collector

Oracle / OpenJDK JVM options

• Oracle's list of -XX options includes defaults per option
• options for performance tuning Nicely commented list of command line options for Oracle JDK on techpaste.com
• Alexey Ragozin's blog JVM garbage collection options cheat sheet very clearly laid out (including G1 options)
• tagtraum industries list of vm flags The initial developer of GCViewer collected quite a few vm options (up to java 1.5)

IBM JVM

• IBM Java Garbage Collection tuning by Chris Bailey

(other) Tools

• fasterj list of links to other gc log analysers.
• gceasy cloud gc analyser including recommendations on how to tune the application
• gcplot All-in-one JVM GC Logs Analyzer (uses GCViewer internally)
• IBM's Garbage Collection and Memory Visualizer very powerful analyser - doesn't support detailed G1 log files yet (only basic G1 logs [-verbose:gc or -XX:+PrintGC] as of 01/21/2012)