Java Heap Dump: Are you up to the task?

If you are as much enthusiasm as I am on Java performance, heap dump analysis should not be a mystery…

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IBM AIX: Java process size monitoring

This article will provide you with a quick reference guide on how to calculate the Java process size memory footprint…

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Compact Off-Heap Structures/Tuples In Java

In my last post I detailed the implications of the access patterns your code takes to main memory. Since then…

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JavaOne 2012: Diagnosing Your Application on the JVM

It was worth attending Staffan Larsen‘s (Oracle Java Serviceability Architect) presentation ‘Diagnosing Your Application on the JVM‘ (Hilton Plaza A/B)…

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Warming Up Your JVM – Superfast Production Servers and IDEs

A couple of months ago I was reading up on Complex Event Processing in Java and ways to achieve low…

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JavaOne 2012: Looking into the JVM Crystal Ball

I returned to Plaza A/B in the Hilton to attend the fourth session on Monday, but first went up to…

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VisualVM: Monitoring Remote JVM Over SSH (JMX Or Not)

VisualVM is a great tool for monitoring JVM (5.0+) regarding memory usage, threads, GC, MBeans etc. Let’s see how to…

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OutOfMemoryError: unable to create new native thread – Problem Demystified

As you may have seen from my previous tutorials and case studies , Java Heap Space OutOfMemoryError problems can be…

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Java Memory Profiling Simplified

As a typical Java developer I never monitored the memory usage of my application apart from following typical best practices…

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