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https://issues.apache.org/jira/browse/MATH-745?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13206808#comment-13206808
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Gilles commented on MATH-745:
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Would it be possible to use our little benchmark utility ("PerfTestUtils" in
the "test" section of the source repository)? There are examples of usage in
"o.a.c.m.util.FastMathTestPerformance").
You could run it once before the changes you propose and once after, and post
the 2 tables here. Thanks!
> up to 5x Performance Improvement on FasFourierTransformer.java by using a
> recursive iterative sumation Approach
> ---------------------------------------------------------------------------------------------------------------
>
> Key: MATH-745
> URL: https://issues.apache.org/jira/browse/MATH-745
> Project: Commons Math
> Issue Type: Improvement
> Affects Versions: 3.0
> Reporter: Leandro Ariel Pezzente
> Labels: FFT, Fast, Fourier, Transform
> Attachments: FastFourierTransformer.patch.txt
>
>
> By swithinch form a loop iterative approach to a recursive iterative approach
> on fastFourierTransformer.java a Perfomance Improvement of up to 5x is gained.
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