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https://issues.apache.org/jira/browse/MATH-990?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13681321#comment-13681321
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Gilles commented on MATH-990:
-----------------------------
Comparison with another code indicates that further improvement is possible, at
the cost of explicitly implementing the sorting procedure (on arrays of
primitive types) instead of relying on "Collections.sort".
> Improve performance of MathArrays.sortInPlace
> ---------------------------------------------
>
> Key: MATH-990
> URL: https://issues.apache.org/jira/browse/MATH-990
> Project: Commons Math
> Issue Type: Improvement
> Affects Versions: 3.2
> Reporter: Gilles
> Assignee: Gilles
> Priority: Minor
> Labels: benchmark
> Fix For: 4.0
>
>
> Performance suffers from lots of copying.
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