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Posted to issues@activemq.apache.org by "Justin Bertram (Jira)" <ji...@apache.org> on 2023/07/05 22:46:00 UTC

[jira] [Commented] (ARTEMIS-4349) Replace Guava cache with Caffeine

    [ https://issues.apache.org/jira/browse/ARTEMIS-4349?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17740337#comment-17740337 ] 

Justin Bertram commented on ARTEMIS-4349:
-----------------------------------------

Microbenchmarks, like the ones you cited, certainly have their place. However, do you have _broker-specific_ benchmarks which demonstrate the performance difference between the two cache implementations? Caffeine may be fast in those microbenchmarks, but if it doesn't actually make a statistically significant difference for a real broker use-case then I'm not sure it's worth changing.

> Replace Guava cache with Caffeine
> ---------------------------------
>
>                 Key: ARTEMIS-4349
>                 URL: https://issues.apache.org/jira/browse/ARTEMIS-4349
>             Project: ActiveMQ Artemis
>          Issue Type: Improvement
>    Affects Versions: 2.29.0
>            Reporter: Alexey Markevich
>            Priority: Major
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> based on benchmark https://github.com/ben-manes/caffeine/wiki/Benchmarks



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