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https://issues.apache.org/jira/browse/DERBY-698?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12496494
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Knut Anders Hatlen commented on DERBY-698:
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See also some related ideas in this thread:
http://www.nabble.com/Fwd%3A-Lock-free-HashMap-tf3770124.html
> Use Java 5 concurrent collections for better concurrency (rather than
> synchronized collections)
> ------------------------------------------------------------------------------------------------
>
> Key: DERBY-698
> URL: https://issues.apache.org/jira/browse/DERBY-698
> Project: Derby
> Issue Type: Improvement
> Components: Services
> Reporter: David Van Couvering
>
> The new Java 5 concurrency utilities includes a set of concurrent collections
> that allow for greater concurrency than the current synchronized collections
> we are using. This could provide performance improvements for Derby,
> particularly in CMT (chip multi-threading) architectures.
> See
> http://java.sun.com/j2se/1.5.0/docs/api/java/util/concurrent/package-summary.html
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