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Posted to jira@kafka.apache.org by "Bill Bejeck (JIRA)" <ji...@apache.org> on 2019/08/16 13:49:00 UTC

[jira] [Assigned] (KAFKA-8802) ConcurrentSkipListMap shows performance regression in cache and in-memory store

     [ https://issues.apache.org/jira/browse/KAFKA-8802?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Bill Bejeck reassigned KAFKA-8802:
----------------------------------

    Assignee: Sophie Blee-Goldman

> ConcurrentSkipListMap shows performance regression in cache and in-memory store
> -------------------------------------------------------------------------------
>
>                 Key: KAFKA-8802
>                 URL: https://issues.apache.org/jira/browse/KAFKA-8802
>             Project: Kafka
>          Issue Type: Bug
>          Components: streams
>    Affects Versions: 2.3.0
>            Reporter: Sophie Blee-Goldman
>            Assignee: Sophie Blee-Goldman
>            Priority: Major
>             Fix For: 2.4.0, 2.3.1
>
>
> A significant performance regression was seen between 2.2 and 2.3. For in-memory stores, about half of it was improved by removing the ConcurrentSkipListMap. 



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