BTrace: hidden gem in Java developer toolbox

This post is about BTrace which I am considering as a hidden gem for Java developer. BTrace is a safe,…

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Which Java thread consumes my CPU?

What do you do when your Java application consumes 100% of the CPU? Turns out you can easily find the…

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8 Ways to improve your Java EE Production Support skills

Everybody involved in Java EE production support know this job can be difficult; 7/24 pager support, multiple incidents and bug…

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Java Thread at RUNNABLE state is not really running

Recently, I was doing an analysis/tuning on a Java application server installation in order to identify the bottlenecks and fix…

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Memory Access Patterns Are Important

In high-performance computing it is often said that the cost of a cache-miss is the largest performance penalty for an…

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Oracle Service Bus – Stuck Thread Case Study

This case study describes the complete root cause analysis process of a stuck thread problem experienced with Oracle Service Bus…

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5 tips for proper Java Heap size

Determination of proper Java Heap size for a production system is not a straightforward exercise. In my Java EE enterprise…

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How to analyze Thread Dump – Thread Stack Trace

This article is part 5 of our Thread Dump analysis series. So far you have learned the basic principles of…

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JRockit – JRCMD useful commands

I have been using JRockit since many years 2007. I find it slower than Hotspot, but it has been always…

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