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https://issues.apache.org/jira/browse/UIMA-5893?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Marshall Schor closed UIMA-5893.
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Resolution: Fixed
Fix Version/s: 2.10.3SDK
> Experiment to schedule multiple threads together at barrier points in pipeline
> ------------------------------------------------------------------------------
>
> Key: UIMA-5893
> URL: https://issues.apache.org/jira/browse/UIMA-5893
> Project: UIMA
> Issue Type: Brainstorming
> Components: Core Java Framework
> Reporter: Marshall Schor
> Assignee: Marshall Schor
> Priority: Minor
> Fix For: 2.10.3SDK
>
>
> This Jira covers experimental, disabled code done as an experiment to explore
> performance implications of putting in barriers in a UIMA pipeline, so that
> multiple threads would wait at the barrier until a bunch of them had arrived,
> and then they would be released together. The intuition motivating this was
> that in highly multi-threaded machines, running the same annotators together,
> might improve locality-of-reference for l1/l2/l3 memory caches, potentially
> speeding up execution.
> After one set of experiments which failed to show improvement (for possibly
> many reasons, not yet investigated), this code is disabled, but kept in the
> project in case of future interest.
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