[
https://issues.apache.org/jira/browse/CASSANDRA-20816?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18011941#comment-18011941
]
Dmitry Konstantinov commented on CASSANDRA-20816:
-------------------------------------------------
MR: https://github.com/apache/cassandra/pull/4292
> Optimize MessagingService.getVersionOrdinal
> -------------------------------------------
>
> Key: CASSANDRA-20816
> URL: https://issues.apache.org/jira/browse/CASSANDRA-20816
> Project: Apache Cassandra
> Issue Type: Improvement
> Components: Messaging/Internode
> Reporter: Dmitry Konstantinov
> Assignee: Dmitry Konstantinov
> Priority: Normal
> Fix For: 5.x
>
> Attachments: 5.1_cpu.html, image-2025-08-04-19-55-41-878.png
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> Based on CPU profile we spend about 0.41% of CPU in
> MessagingService.getVersionOrdinal logic during a basic plain write stress
> test.
> The map lookup (with an implicit auto-boxing) can be replaced with a plain
> arithmetic operation.
> A unit test can be used to ensure that the assumption about serialization
> version is incremented for new versions is correct.
> !image-2025-08-04-19-55-41-878.png|width=700!
> [^5.1_cpu.html]
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
