Agrona
Trove
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Agrona
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Any library you would like to recommend to others as it helps you a lot? For me, mapstruct is one of them. Hopefully I would hear some other nice libraries I never try.
Aeron for low latency apps and Agrona is you're using Aeron for data structures
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Need help navigating the Java ecosystem (coming from C++)
Martin Thompson is one of the leaders in that space: his blog is a really great place to start. His Agrona library is a bunch of high-performance data structures, which you can use directly, but which can also serve as examples of writing such code.
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WritableImage and real-time ray-tracing. I need help!
ByteBuffer methods have quite a bit of overhead. You could further try to (1) writing to a byte[] first and then using the put(byte[]) method, or (2) use sun.misc.Unsafe::putByte (maybe try with Agrona's DirectBuffer and copy the necessary lines if need be).
- Are you interested in learning about low latency zero allocation programming?
Trove
We haven't tracked posts mentioning Trove yet.
Tracking mentions began in Dec 2020.
What are some alternatives?
Disruptor - High Performance Inter-Thread Messaging Library
fastutil - fastutil extends the Java™ Collections Framework by providing type-specific maps, sets, lists and queues.
Eclipse Collections - Eclipse Collections is a collections framework for Java with optimized data structures and a rich, functional and fluent API.
Chronicle Queue - Micro second messaging that stores everything to disk
HPPC - High Performance Primitive Collections for Java
Koloboke - Java Collections till the last breadcrumb of memory and performance
JCTools
Primitive-Collections - A Primitive Collection library that reduces memory usage and improves performance and provides a lot of QoL
GS Collections - GS Collections has been migrated to the Eclipse Foundation, re-branded as Eclipse Collections. https://www.eclipse.org/collections/