[#MATH-276] Calculate isNan and isFinite in Complex constructor

Commons Math

Calculate isNan and isFinite in Complex constructor

Created: 17/Jun/09 09:00 AM Updated: 07/Aug/09 09:16 AM

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Component/s:

None

Affects Version/s:

2.0

Fix Version/s:

2.0

Time Tracking:

Not Specified

File Attachments:

	File Name	Date Attached	Attached By	Size
	Complex.patch	2009-06-17 09:01 AM	Mark Anderson	1 kB

Resolution Date:

05/Jul/09 01:00 PM

Description

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From profiling some code performing a large number of FFT operations I found that due to isNaN being called as part of complex arithmetic a large proportion of time was spent within isNaN.

I would propose calculating isNaN and isFinite in the constructor to save calculating these values each time the methods are called.

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Phil Steitz added a comment - 17/Jun/09 11:01 AM

Patch applied in r785552. Thanks!

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Phil Steitz added a comment - 18/Jun/09 02:25 AM

Per Luc's comment on dev list, we need to address serialization overhead issue. Custom serialization and new fields transient?

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Luc Maisonobe added a comment - 05/Jul/09 01:00 PM

closing the issue as it was solved some weeks ago (2009-06-23), as of r787521 by Phil and Bill

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Luc Maisonobe added a comment - 07/Aug/09 09:16 AM

closing resolved issue for 2.0 release