List/Grid Core Java Subscribe to the RSS feed of category Core Java

java-logo

Printing Generated Assembly Code From The Hotspot JIT Compiler

Sometimes when profiling a Java application it is necessary to understand the assembly code generated by the Hotspot JIT compiler. This can be useful in determining what optimisation ...
java-logo

Garbage Collection in Java (3)

This follows on from my previous two garbage collection blog posts:Overview of GC in Hotspot. Parallel Garbage Collectors.Concurrent Mark Sweep The parallel garbage collectors in ...
java-logo

Reducing memory usage with String.intern()

Every now and then you have a dying production application at hand. And you know you need to patch it as fast as possible. So have we, and thought it would be interesting to share one ...
java-logo

Garbage Collection in Java (2)

Parallel Scavenge Today we cover how Parallel GC works. Specifically this is the combination of running a Parallel Scavenge collector over Eden and the Parallel Mark and Sweep collector ...
apache-lucene-logo

Screaming fast Lucene searches using C++ via JNI

At the end of the day, when Lucene executes a query, after the initial setup the true hot-spot is usually rather basic code that decodes sequential blocks of integer docIDs, term frequencies ...
java-logo

Garbage Collection in Java (1)

This is the first in a series of posts about Garbage Collection (GC). I hope to be able to cover a bit of theory and all the major collectors in the hotspot virtual machine over the ...
java-logo

Common Red Flags in Java Development

In several years of developing, reading, reviewing, and maintaining hundreds of thousands of lines of Java code, I have become accustomed to seeing certain “red flags” in ...
java-logo

Why does my Java process consume more memory than Xmx?

Some of you have been there. You have added -Xmx option to your startup scripts and sat back relaxed knowing that there is no way your Java process is going to eat up more memory than ...
java-logo

Java SE 7 Update 25 – Release-Notes explained.

Yesterday was CPU day. Oracle released the Java SE update 25 with the June Java Critical Patch Update. After the last major update in April this is the last one which does not fit into ...
java-logo

Documenting Compliance – About TCKs, Specifications and Testing

Working with software specifications is hard. No matter in which exact filed; you end up with the big question: Does everything ever specified is implemented and tested? Back in the ...
Java Code Geeks and all content copyright © 2010-2014, Exelixis Media Ltd | Terms of Use | Privacy Policy
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