Developing Performant, Cost Efficient, and Eco-friendly Code (#84)
About this episode
The episode discusses developing sustainable software that is both performant and environmentally friendly, featuring insights from various experts in the field.
In this Foojay Podcast, we're exploring a critical topic that's becoming increasingly important in our industry: developing sustainable software that is both performant and environmentally friendly. At the Devoxx and JFall conferences, I had fascinating conversations about how we as Java developers can make a real impact on both our cloud costs and our carbon footprint. And it's interesting to learn how these two goals are often perfectly aligned: what's good for your budget is usually good for the planet too. We start with Daniel Witkowski. He published an article on Foojay that takes us on a deep dive into performance tuning. He explains why optimizing your code can have a thousand times more impact than saving 30% on cloud costs, and walks us through his journey of turning a simple integer validation challenge into a masterclass on Java performance optimization. Next, I caught up with Ko Turk, who shares his passion for sustainable engineering and space exploration. He introduces us to Kepler, a tool for monitoring the energy consumption of your applications, and explains how performance optimization naturally leads to sustainability improvements. Then Ronald Dehuysser…
People in this episode
Guests: Daniel Witkowski, Ko Turk, Ronald Dehuysser, Jan Ouwens
Topics covered
- sustainable software
- performance optimization
- environmental impact
- cloud costs
- energy consumption
- Java development
Keywords
- sustainable engineering
- Java performance
- carbon footprint
- cloud optimization
- energy monitoring
Mentioned in this episode
Organizations: Foojay, JobRunr, Devoxx, JFall
Products: Kepler
More episodes of Foojay.io, the Friends Of OpenJDK!
- Update Your JDK, Read More Code, and Talk to Your Users: Interviews From VoxxedDays Amsterdam (#93)
- Java 26 Is Here: What's New, What's Gone, and Why It Matters in 2026 (#92)
- 25 Years of IntelliJ IDEA: The IDE That Grew Up With Java (#91)
- From Java 21 to 25: The Features That Changed Everything (#90)
- A look into Quarkus and Agentic Commerce with Holly Cummins and Michal Maléř (#89)
- From Code to Stage: Organizing Conferences and Finding Your Voice as a Speaker (#88)
Explore listener stats, chart rankings, contacts and more on the Foojay.io, the Friends Of OpenJDK! podcast page.