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docs/java-and-java-performance-optimization.md
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## Introduction
- [javarevisited.blogspot.com: 10 Things Java Programmers Should Learn in 2022](https://javarevisited.blogspot.com/2017/12/10-things-java-programmers-should-learn.html)
- [freecodecamp.org: Learn the Basics of Java Programming](https://www.freecodecamp.org/news/learn-the-basics-of-java-programming/)
- [freecodecamp.org: Advanced Object-Oriented Programming in Java – Full Book](https://www.freecodecamp.org/news/object-oriented-programming-in-java/)
## Java Performance Optimization
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- [vladmihalcea.com: Caching best practices](https://vladmihalcea.com/caching-best-practices/)
- [vladmihalcea.com: 14 High-Performance Java Persistence Tips](https://vladmihalcea.com/14-high-performance-java-persistence-tips/)
- [speakerdeck.com: Profiling a Java Application @DevDays 2023 | Victor Rentea](https://speakerdeck.com/victorrentea/profiling-a-java-application-at-devdays-2023)
- [freecodecamp.org: How to Write Unit Tests in Java](https://www.freecodecamp.org/news/java-unit-testing/)
### Java on Kubernetes. Java Memory Arguments for Containers
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- [danoncoding.com: Tricky Kubernetes memory management for Java applications 🌟](https://danoncoding.com/tricky-kubernetes-memory-management-for-java-applications-d2f88dd4e9f6) Running Java applications in a container environment requires an understanding of both — JVM memory mechanics and Kubernetes memory management. In this article, you will discuss the settings and optimizations necessary to run Java apps in Kubernetes.
- [medium.com/nordnet-tech: Setting Java Heap Size Inside a Docker Container](https://medium.com/nordnet-tech/setting-java-heap-size-inside-a-docker-container-b5a4d06d2f46)
- [danoncoding.com: Tricky Kubernetes memory management for Java applications 🌟](https://danoncoding.com/tricky-kubernetes-memory-management-for-java-applications-d2f88dd4e9f6) How to use the Kubernetes memory requests and limits in combination with JVM Heap and stay out of trouble.
- [medium.com/@sharprazor.app: Memory settings for Java process running in Kubernetes pod](https://medium.com/@sharprazor.app/memory-settings-for-java-process-running-in-kubernetes-pod-1e608a5d2a64) Managing the memory usage of a Java process running in a Kubernetes pod is more challenging than one might expect. Even with proper JVM memory configurations, OOMKilled issues can still arise and you wonder why.
- There is no way to guarantee the complete memory bundary of a Java process since the JVM respects only the heap size limit; not non-heap memory, which will depend on various factors. Start with a 75% ratio of heap to non-heap memory, and keep a close watch on how your memory behaves. If things get out of hand, you can tweak your pod’s memory limits or fiddle with the heap-to-non-heapratio to dodge the OOMKilled mishaps.
### Benchmarking modern Java Virtual Machines and the next-generation garbage collectors