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  • Where Has the Java PermGen Gone?

    by Monica Beckwith on  Jul 07, 2014 2

    Prior to JDK8 class metadata and constants would live in an area called the “permanent generation”, contiguous with the Java heap. One problem was that If the class metadata size is beyond the allocated bounds your app would run out of memory. With the advent of JDK8 we no longer have PermGen. The space where it was held has now moved to native memory to an area known as the “Metaspace”.

  • Book Review and Interview: Real World OCaml

    by Werner Schuster on  Jan 08, 2014

    The new book Real World OCaml provides a deep dive into the OCaml programming language. InfoQ caught up with the authors to hear about real world Ocaml users, its unique features, and much more.

  • Visualizing Java Garbage Collection

    by Ben Evans on  Dec 25, 2013

    Garbage Collection, like Backgammon takes minutes to learn and a lifetime to master. In this article Master trainer/consultant Ben Evans summarizes his recent InfoQ presentation "Visualizing Garbage Collection" where he discusses Garbage Collection from the ground up.

Tips for Tuning the Garbage First Garbage Collector

Posted by Monica Beckwith on  Sep 17, 2013

In July Monica Beckwith explored the theory of the new G1 GC Garbage First Garbage Collector. In this second installment, Monica delves into more practical aspects and provides guidance for tuning. 11

G1: One Garbage Collector To Rule Them All

Posted by Monica Beckwith on  Jul 15, 2013

Many articles describe how a poorly tuned garbage collector can bring an application's SLA to its knees. The G1 collector replaces the conventional algorithms with a concept of “regions” 4

Java Garbage Collection Distilled

Posted by Martin Thompson on  Jun 17, 2013

Do the hundreds of JVM start-up flags baffle you when trying to tune the garbage collector? This article will explain the tradeoffs when choosing and tuning garbage collection algorithms 1

The Azul Garbage Collector

Posted by Charles Humble on  Feb 24, 2011

InfoQ examines how Azul's collector works, and explores some techniques you can use to test the impact of garbage collection in your applications.

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