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Lessons from the field #6: IBM Java and OpenJ9 Just-In-Time Compiler Tuning

One of the key values of Java is the Just-In-Time (JIT) compiler . This converts the hottest Java methods from interpreted code into native code at runtime. The performance difference is massive: typically, 10-20 times faster (i.e. a magnitude). The JIT is enabled by default, and, in general,...

Kevin Grigorenko's profile image

Blog Entry
Binary Scanner Tips and Tricks

If you've been following this migration series of blogs ( analysis report , inventory report , and evaluation report ) at this point you are probably a lot more familiar with our WebSphere Application Migration Toolkit for Application Binaries and what it can do. Along the way, in your...

CHUKA OBINABO's profile image


Blog Entry
Getting more from your migration data

In recent migration blogs from this community, you have learned what the Migration Toolkit for Application Binaries ' (binary scanner) analysis report , inventory report , and evaluation report can teach you about your applications. We peel the layers of your applications to reveal exactly...

Cindy High's profile image


Blog Entry
What's new in the WebSphere Migration Tools 21.0.0.2?

The WebSphere Application Server Migration tools are a set of modernization tools that can be used to quickly and comprehensively analyze an application to determine its contents and what is needed to migrate to Liberty, a new version of WebSphere traditional, or a new version of Java. The...

Ryan Golden's profile image

Blog Entry
Fast iterative development of cloud-native apps with Liberty’s dev mode

In last week's Expert TV episode of WebSphere and Liberty Community Spotlight , Trevor Crawford ( @Trevor Crawford ) and I showed how you can iterate quickly while developing cloud-native Java applications for Open Liberty and WebSphere Liberty. We covered why fast iterative...

Eric Lau's profile image

Blog Entry
Are you Ready for Liberty?

Traditional WebSphere is great, but when you are ready to containerize your Java applications, there is nothing better than Liberty ! Liberty's advantages range from its: Small image size with just enough runtime Low operating cost because of increased density Continuous delivery...

Cindy High's profile image

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Japan WebSphere User Group (日本WebSphereユーザーグループ)

Japan WebSphere User Group(JWUG)とは、IBM WebSphere Application Serverに関して、技術者視点でその機能や利用方法に関して「日本語で語る」ために開設したユーザー・グループです。


Blog Entry
Using Jakarta EE 9 with Open Liberty

Check out the replay of the Expert TV episode entitled "Let's Code - Open Liberty and Jakarta EE 9 highlights" and learn more about Jakarta EE 9 and how you can easily start running your applications using Jakarta EE 9 without a lot of development cost. In the presentation you will learn...

Jared Anderson's profile image