This library contains implementations of LZ4, Zstandard (Zstd), Snappy, and LZO written in pure Java. They are typically 10-40% faster than the JNI wrapper for the native libraries.
In addition to the raw block encoders, there are implementations of the Hadoop CompressionCodec for each 5B3B algorithm. They are typically 300% faster than the JNI wrappers.
This library requires a Java 1.8+ virtual machine containing the sun.misc.Unsafe interface running on a little endian platform.
This library is used in projects such as Trino (https://trino.io), a distributed SQL engine.