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https://issues.apache.org/jira/browse/DAFFODIL-1860?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Steve Lawrence resolved DAFFODIL-1860.
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Resolution: Fixed
Assignee: Dave Thompson (was: Steve Lawrence)
Fixed in eec6c76a36edeecebf87ab5a3d80f9040442f120
> Minimize the number of HashMap allocations/insertions in the Infoset
> --------------------------------------------------------------------
>
> Key: DAFFODIL-1860
> URL: https://issues.apache.org/jira/browse/DAFFODIL-1860
> Project: Daffodil
> Issue Type: Bug
> Components: Back End
> Reporter: Steve Lawrence
> Assignee: Dave Thompson
> Priority: Major
> Fix For: 2.1.0
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> Performance testing found that the slot removal made in DAFFODIL-1854 caused
> performance degradation, sometimes up to 20% decreases. Profiling found that
> some of this is due to the allocations of the HashMap used for quickly
> looking up elements in the Infoset by QName. We should only allocate hashmaps
> when it's possible an element could be be used in an expression, which should
> improve performance.
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