Java in the Green Cloud: Eco-Friendly Development with Kubernetes
summary
Practical steps for greener Java: upgrade to GDK 21 to get J1 GC by default or try ZGC/Chinandua, enable GC logs and tune G1 GC pause settings to cut a real example from 20.44s to 12.7s; favor JIT escape analysis and primitives to avoid millions of heap objects; measure energy with macOS power matrix (example: CPU power 3.76W → 1.53W, a 146% yearly waste if left unchanged); use horizontal pod autoscaler and VPA on Kubernetes; Carbon Aware SDK and Grafana track carbon and show a reported 40% energy reduction.
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chapters (6)
- 0:00Introduction
- 1:04Why sustainability matters
- 2:52Green programming strategies
- 8:34Analyzing resource usage
- 15:40Java in the cloud
- 21:21Call to action
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