EmbeddingGemma 2: an open, lightweight multimodal embedding model
deepmind.google·6d ago
AI Engineering
Hacker News·Aug 26·5 min read
Value Classes Still Need Compiler Sympathy
TL;DR
JDK 28 introduces value classes as a preview feature, enhancing performance and semantics in Java. However, developers must understand the limitations and optimization nuances of these classes to avoid performance pitfalls.
✦ Why It Matters
Familiarize yourself with value classes in JDK 28 to optimize your Java applications effectively.
Key Takeaways
- Understand the implications of using value classes in your code.
- Avoid assuming value classes will always outperform regular classes.
- Leverage immutability to enable better JVM optimizations.
- Profile your code to identify performance bottlenecks with value classes.
How It Works
Value classes allow the JVM to optimize memory usage by removing identity, enabling techniques like flattening and scalarization. This means that the JVM can store values more efficiently, reducing the overhead associated with object references.