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https://issues.apache.org/jira/browse/DAFFODIL-1449?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mike Beckerle closed DAFFODIL-1449.
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Resolution: Not A Problem
Need profiling before making performance changes.
> Performance: Use Java HashMap, not Scala HashMap, which allocates constantly.
> -----------------------------------------------------------------------------
>
> Key: DAFFODIL-1449
> URL: https://issues.apache.org/jira/browse/DAFFODIL-1449
> Project: Daffodil
> Issue Type: Improvement
> Components: Back End, Performance
> Affects Versions: 1.1.0
> Reporter: Mike Beckerle
> Priority: Major
>
> Scala's mutable HashMap allocates a Some[T] object for every successful
> get(key) call.
> This is unacceptable overhead for something done so frequently.
> Use Java's HashMap instead, where get(key) returns a value or null, and never
> allocates anything.
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