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Posted to dev@uima.apache.org by "Marshall Schor (JIRA)" <de...@uima.apache.org> on 2014/02/20 04:10:22 UTC

[jira] [Resolved] (UIMA-3638) Remove potential sync bottleneck in RsFullFeatNames and RsLang

     [ https://issues.apache.org/jira/browse/UIMA-3638?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Marshall Schor resolved UIMA-3638.
----------------------------------

    Resolution: Fixed
      Assignee: Marshall Schor

> Remove potential sync bottleneck in RsFullFeatNames and RsLang
> --------------------------------------------------------------
>
>                 Key: UIMA-3638
>                 URL: https://issues.apache.org/jira/browse/UIMA-3638
>             Project: UIMA
>          Issue Type: Improvement
>          Components: Core Java Framework
>    Affects Versions: 2.5.0SDK
>            Reporter: Marshall Schor
>            Assignee: Marshall Schor
>            Priority: Minor
>             Fix For: 2.5.1SDK
>
>
> In large UIMA deployments with multiple threads, some synchronization contention is detected in RsFullFeatNames and RsLang.  Replace with concurrentHashMap, and for RsFullFeatNames - discard the weakpointers to keys, which is not much of a hazard - because the tables are relatively small vs other memory uses.



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