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Posted to dev@kafka.apache.org by "Sophie Blee-Goldman (JIRA)" <ji...@apache.org> on 2019/08/14 17:11:00 UTC

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

Sophie Blee-Goldman created KAFKA-8802:
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             Summary: 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
             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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