List/Grid Tag Archives: JVM

java-logo

Under the JVM hood – Classloaders

Classloaders are a low level and often ignored aspect of the Java language among many developers. At ZeroTurnaround , our developers have had to live, breathe, eat, drink and almost ...
java-logo

Should I use a 32- or a 64-bit JVM?

This is a question I have faced several times during my career in enterprise software development. Every once in awhile I’ve had to hand out recommendations for configuring a specific ...
java-logo

Escaping the JVM heap for memory intensive applications

If you’ve ever allocated large Java heaps, you know that at some point – typically starting at around 4 GiB – you will start having issues with your garbage collection ...
java-logo

Why can’t I turn off the Garbage Collector?

Let’s start with a quick rewind to the early days of my career as a Java developer. I wanted to eliminate Garbage Collection (GC) pauses from a test that I was conducting. Lo and ...
java-logo

Should you trust the default settings in JVM?

JVMs are considered smart nowadays. Not much configuration is expected – just set the maximum heap to use in the startup scripts and you should be good to go. All other default settings ...
codahale-metrics-logo

Yammer Metrics, A new way to monitor your application

When you are running long term applications like web applications, it is good to know some statistics about them, like number of requests served, request durations, or the number active ...
java-logo

Increasing heap size – beware of the Cobra Effect

The term ‘Cobra effect’ stems from an anecdote set at the time of British rule of colonial India. The British government was concerned about the number of venomous cobra snakes. ...
java-logo

Do you get Just-in-time compilation?

Remember the last time when you were laughed at by C-developers? That the Java is so slooooow that they would never even consider using a language like this? In many ways, the concept ...
java-logo

Who is stealing your memory? The Application Servers Edition

You create an amazing app. You put it into production. And you notice that you justdo not have enough memory available. Even when all your measurements (maybe taken with the help of ...
java-logo

Busting PermGen Myths

In my latest post I explained the reasons that can cause the java.lang.OutOfMemoryError: PermGen space crashes. Now it is time to talk about possible solutions to the problem. Or, ...
Java Code Geeks and all content copyright © 2010-2014, Exelixis Media Ltd | Terms of Use | Privacy Policy | Contact
All trademarks and registered trademarks appearing on Java Code Geeks are the property of their respective owners.
Java is a trademark or registered trademark of Oracle Corporation in the United States and other countries.
Java Code Geeks is not connected to Oracle Corporation and is not sponsored by Oracle Corporation.
Do you want to know how to develop your skillset and become a ...
Java Rockstar?

Subscribe to our newsletter to start Rocking right now!

To get you started we give you two of our best selling eBooks for FREE!

Get ready to Rock!
You can download the complementary eBooks using the links below:
Close