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From "Yingqi Lu (JIRA)" <>
Subject [jira] [Created] (CASSANDRA-13908) Add JDK9 new CRC32C checksum
Date Wed, 27 Sep 2017 06:05:00 GMT
Yingqi Lu created CASSANDRA-13908:

             Summary: Add JDK9 new CRC32C checksum
                 Key: CASSANDRA-13908
             Project: Cassandra
          Issue Type: Improvement
          Components: Local Write-Read Paths
            Reporter: Yingqi Lu

Dear All,

JDK9 introduces a new API It has an optimized implementation using IA
crc32c instruction. Our early data show CRC32C provides additional performance benefits over
CRC32 checksum.

We are proposing to add CRC32C as one of the checksum types in addition to Adler32 and CRC32.
Performance data and prototype code changes will be submitted here soon. At the meantime,
please feel free to provide your feedback and comments.

Yingqi Lu

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