[january-dev] clone() vs System.arraycopy

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[january-dev] clone() vs System.arraycopy

From: Matthew Gerring <matthew.gerring@xxxxxxxxx>
Date: Tue, 17 Oct 2017 11:35:22 +0100
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Hello,

January uses clone() quite a bit when duplicating large primitive arrays. For one of many instances see FloatDataset:

odata = data = "">

However System.arraycopy is ~5x faster according to:

http://www.javaspecialists.co.za/archive/Issue124.html

Are there any plans to migrate from clone to arraycopy? Or do I have to submit a PR to do that? I might ask one of the team here to submit that change if you agree, please let me know you thoughts.

Matt

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