Theodora Fragkouli

About Theodora Fragkouli

Theodora has graduated from Computer Engineering and Informatics Department in the University of Patras. She also holds a Master degree in Economics from the National and Technical University of Athens. During her studies she has been involved with a large number of projects ranging from programming and software engineering to telecommunications, hardware design and analysis.

Ruby 2.1 Released

Ruby 2.1 is officially released. According to Ruby 2.1.0 Released, Delivering new GC Ruby 2.1 release has brought changes in garbage collector that will improve performance.

The “Mark & Sweep” implementation of previous versions is now replaced by the RGenGC (Restricted Generational Garbage Collection) implementation. As Ruby developer Koichi Sasada had observed in April 2013, the challenge was to implement a GC algorithm that could handle both protected and unsafe objects in the same heap.

RGenGC implementation uses Write-Barriers so as to avoid rewriting all existing C-extensions to use the new GC. In RubyConf 2013, Sasada showed how RGenGC provides a third way given the 2 original alternatives:
A) Do not implement generational GC at all (as in Ruby 2.0 & before) or
B) Implement Generational GC with a requirement that all C-extensions are rewritten.

RgenGC is compatible with existing extensions and also provides performance improvements. Array, String, Hash, Object, and Numeric are all Write-Barrier protected objects, so the RGenGC system can be used in these cases. Work on both internal and external libraries will offer the possibility of additional performance gains in the future.

Other very important improvements, appart from the garbage collection system include RDoc 4.1.0, RubyGems 2.2.0, and several updated libraries. You can find a full list of 2.1 release changes at the release notes located at the project’s GitHub page.

Do you want to know how to develop your skillset to 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!

JPA Mini Book

Learn how to leverage the power of JPA in order to create robust and flexible Java applications. With this Mini Book, you will get introduced to JPA and smoothly transition to more advanced concepts.

JVM Troubleshooting Guide

The Java virtual machine is really the foundation of any Java EE platform. Learn how to master it with this advanced guide!

Given email address is already subscribed, thank you!
Oops. Something went wrong. Please try again later.
Please provide a valid email address.
Thank you, your sign-up request was successful! Please check your e-mail inbox.
Please complete the CAPTCHA.
Please fill in the required fields.

Leave a Reply


− 2 = three



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