[KAFKA-13900] Support Java 9 direct ByteBuffer Checksum methods

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.1.1
• Fix Version/s: 3.4.0
• Component/s: clients, core
• Labels: performance performance-benchmark
• Assignee: Unassigned
• Reporter: Francesco Nigro
• Created: 13/May/22 18:14
• Updated: 17/Mar/23 14:13
• Resolved: 17/Mar/23 14:13

Description

Java 9 has added a new Checksum method that can makes uses of ByteBuffer(s) (see Java 9's Checksum::update): 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 for direct ByteBuffers as well (read-only or not), instead of performing a byte-per-byte computation.

 

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.

Issue Links

• links to: GitHub Pull Request #12163