Francesco Nigro created KAFKA-13900:
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Summary: Support Java 9 direct ByteBuffer Checksum methods
Key: KAFKA-13900
URL: https://issues.apache.org/jira/browse/KAFKA-13900
Project: Kafka
Issue Type: Improvement
Components: clients, core
Affects Versions: 3.1.1
Reporter: Francesco Nigro
Java 9 has added a new Checksum method that can makes uses of ByteBuffer(s)
(see
https://docs.oracle.com/javase/9/docs/api/java/util/zip/Checksum.html#update-java.nio.ByteBuffer-):
kafka already provides specific support for Java 9's Cr32C, hence it makes
sense it's going to use the most optimized version of it, in case fed
ByteBuffer is direct (read-only or not), instead of performing a computation
byte-per-byte.
I'm aware that currently the client's Buffer pools aren't using direct
ByteBuffer, but having full support for it can open the door to future
interesting optimizations on it.
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