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https://issues.apache.org/jira/browse/SLING-2787?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Carsten Ziegeler reassigned SLING-2787:
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Assignee: Carsten Ziegeler
> Inefficient array conversion in ValueMapDecorator.convertToArray()
> ------------------------------------------------------------------
>
> Key: SLING-2787
> URL: https://issues.apache.org/jira/browse/SLING-2787
> Project: Sling
> Issue Type: Bug
> Components: API
> Affects Versions: API 2.3.0
> Reporter: Lukas Eder
> Assignee: Carsten Ziegeler
> Priority: Minor
> Attachments: ValueMapDecorator.java.patch, ValueMapTest.java
>
>
> The method ValueMapDecorator.convertToArray() seems to have a rather
> canonical implementation, which can be improved significantly. The roundtrip
> via a temporary LinkedList seems unnecessary and leads to a significant
> performance loss in "high throughput" test scenarios. Attached, you'll find a
> test case leading to the below results:
> Run with 10000000 repetitions.
> String[] -> Integer[]: 1464.146 ms
> String -> Integer[]: 826.171 ms
> After applying the attached patch, the results improve significantly:
> Run with 10000000 repetitions.
> String[] -> Integer[]: 1010.143 ms
> String -> Integer[]: 524.219 ms
> While the effect of the improvement is less significant in a "real-world"
> scenario, I still think it is worth improving this central API class
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