JVM
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Software Development
JVM Pressure – Context Switching Overhead
Context Switching (CS) is a valuable service provided by the underlying Operating System. It prevents greedy processes from CPU hogging,…
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Core Java
Why is my JVM having access to less memory than specified via -Xmx?
“Hey, can you drop by and take a look at something weird”. This is how I started to look into…
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Core Java
Byteman – a swiss army knife for byte code manipulation
I am working with a bunch of communities in JBoss and there is so much interesting stuff to talk about,…
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Core Java
How JVMTI tagging can affect GC pauses
This post is analyzing why and how Plumbr Agents extended the length of GC pauses on certain occasions. Troubleshooting the underlying problem…
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Core Java
Java Flight Recorder (JFR)
JFR is a Java profiler which will allow you to investigate the runtime characteristics of your code. Typically you will…
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Core Java
JVM is down with “OutOfMemory” error – what should I do?
Amazing as it may seem, but this particular cry “From the Depths” is frequently displayed among the results of search…
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Enterprise Java
Starting multiple JBoss A-MQ JVMs on the same machine
So I haven’t been blogging as much recently — just been really busy. But my New Year’s resolution is to…
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Core Java
How is Java / JVM built ? Adopt OpenJDK is your answer!
Introduction & history As some of you may already know, starting with Java 7, OpenJDK is the Reference Implementation (RI)…
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Core Java
Testing JVM server-side JavaScript with Jasmine, Spock and Nashorn
JavaScript usage is not limited to client-side code in browser or NodeJS powered server-side code. Many JVM based projects are…
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