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https://issues.apache.org/jira/browse/DAFFODIL-2852?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Steve Lawrence resolved DAFFODIL-2852.
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Resolution: Fixed
Fixed in commit f3fb555c98aa3cfe24270f38b579b03316cc8ad0
> VariableMap copies during suspensions cause performance degredation
> -------------------------------------------------------------------
>
> Key: DAFFODIL-2852
> URL: https://issues.apache.org/jira/browse/DAFFODIL-2852
> Project: Daffodil
> Issue Type: Bug
> Components: Back End, Unparsing
> Reporter: Steve Lawrence
> Assignee: Steve Lawrence
> Priority: Major
> Fix For: 3.6.0
>
>
> When a suspension is created when unparsing, we create a copy of the
> VariableMap so that future newVariableInstances do not affect the supension.
> The current VariableMap internals uses a Map of ArrayBuffers, both of which
> are fairly expensive to copy, with the overhead showing up heavily when
> profiling. We should change the VariableMap internals to use a data structure
> that allows fast copies, while still maintaining constant time lookups.
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