LJC Lightning Talk: Eclipse OpenJ9: Memory Diet for Your JVM Applications
Talk
In the spring of 2020, the London Java Community (LJC) started hosting online lightning talks every other Friday. I was honored to give my first lightning talk there on May 1, 2020.
I discussed Eclipse OpenJ9, an alternate JVM. It uses less memory, especially in containers. Therefore OpenJ9 lowers the cost of running your Java applications.
Video
The talk is on YouTube:
Slides
The slides are available as PDF on Github.
Source Code & Getting Started
I used two different applications to benchmark OpenJ9 against HotSpot. All the sources and more result details are in a Github repository. That repository also shows you how can start using OpenJ9 in your own projects, too!
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Developer job ads dipped 30% in 2023. Monthly Stack Overflow questions dropped 42% since ChatGPT, with JavaScript at -56% and Python at -59%. Since June 22, Udemy's first-time Python course purchases have outpaced Java's 7.1 million to 2 million. Job ads for Quarkus and Micronaut continue to rebound.
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