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https://issues.apache.org/jira/browse/DAFFODIL-2627?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17480173#comment-17480173
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Mike Beckerle commented on DAFFODIL-2627:
-----------------------------------------
WeakHashMap is fine with me. The fact that we don't control exactly when really
doesn't matter for TDML tests.
> Performance regression in TDML processor
> ----------------------------------------
>
> Key: DAFFODIL-2627
> URL: https://issues.apache.org/jira/browse/DAFFODIL-2627
> Project: Daffodil
> Issue Type: Bug
> Components: TDML Runner
> Affects Versions: 3.2.0
> Reporter: Josh Adams
> Priority: Major
>
> While working on a customer project we noticed a significant increase in the
> amount of time it took to run our test suit (over 600 tests) after upgrading
> from Daffodil 2.7.0 to 3.2.1. We were seeing roughly a 4x increase in time
> to complete the same set of tests.
> I've narrowed the performance regression to commit
> 0700ee8dc9531497f3e8b0fdf9266f8e3b105c27 which involved a removal of the
> schema compilation cache, which is likely causing the schema to need to be
> recompile much more frequently.
> We use a relatively large schema (over 10,000 lines), but it is the same
> schema used for all tests.
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