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https://issues.apache.org/jira/browse/CASSANDRA-21040?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dmitry Konstantinov updated CASSANDRA-21040:
--------------------------------------------
Fix Version/s: 5.1
(was: 5.x)
Source Control Link:
https://github.com/apache/cassandra/commit/a7a85c634a12d46fcd778709af77e35078ec60fc
Resolution: Fixed
Status: Resolved (was: Ready to Commit)
> Optimize ModificationStatement#requiresRead
> --------------------------------------------
>
> Key: CASSANDRA-21040
> URL: https://issues.apache.org/jira/browse/CASSANDRA-21040
> Project: Apache Cassandra
> Issue Type: Improvement
> Components: CQL/Interpreter
> Reporter: Dmitry Konstantinov
> Assignee: Dmitry Konstantinov
> Priority: Normal
> Fix For: 5.1
>
> Attachments: CASSANDRA-21040_ci_summary.htm,
> CASSANDRA-21040_results_details.tar.xz, image-2025-11-22-12-30-59-096.png
>
> Time Spent: 1h
> Remaining Estimate: 0h
>
> org.apache.cassandra.cql3.statements.ModificationStatement#requiresRead is
> calculated now every time, we can calculate it once and memorize the result.
> It costs 1.5% of CPU for a simple 10-row batch insert test.
> !image-2025-11-22-12-30-59-096.png|width=1000!
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