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Tag Archives: IBM JVM

IBM JVM tuning – gencon GC policy

This article will provide you detail on an important Java Heap space tuning consideration when migrating from a Java VM such as HotSpot or JRockit to the IBM JVM. This tuning recommendation is based on a recent troubleshooting and tuning mandate I performed for one of my IT clients. IBM JVM overview As you probably saw from my other articles, ...

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Java Heap Space – JRockit and IBM VM

This article will provide you with an overview of the JRockit Java Heap Space vs. the HotSpot VM. It will also provide you some background on Oracle future plans regarding JRockit & HotSpot. Oracle JRockit VM Java Heap: 2 different memory spaces  -The Java Heap (YoungGen and OldGen)  -The Native memory space (Classes pool, C-Heap, Threads…) Where is the PermGen ...

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