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https://issues.apache.org/jira/browse/CASSANDRA-16360?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18096435#comment-18096435
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Maxim Muzafarov commented on CASSANDRA-16360:
---------------------------------------------
[~dnk] You might be interested in reviewing this, since we have been working on
improving the performance for quite a while.
> CRC32 is inefficient on x86
> ---------------------------
>
> Key: CASSANDRA-16360
> URL: https://issues.apache.org/jira/browse/CASSANDRA-16360
> Project: Apache Cassandra
> Issue Type: Improvement
> Components: Messaging/Client, Messaging/Internode
> Reporter: Avi Kivity
> Assignee: Maxim Muzafarov
> Priority: Normal
> Labels: protocolv6
> Fix For: 6.x
>
> Time Spent: 40m
> Remaining Estimate: 0h
>
> The client/server protocol specifies CRC24 and CRC32 as the checksum
> algorithm (cql_protocol_V5_framing.asc). Those however are expensive to
> compute; this affects both the client and the server.
>
> A better checksum algorithm is CRC32C, which has hardware support on x86 (as
> well as other modern architectures).
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