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RE: [Bug-gsl] Wavelet DWT speedup
From: |
Jason Coy |
Subject: |
RE: [Bug-gsl] Wavelet DWT speedup |
Date: |
Wed, 2 Jan 2008 20:46:08 -0500 |
Approximately 5% improvement depending on the size of the buffers.
Jason
-----Original Message-----
From: Brian Gough [mailto:address@hidden
Sent: Wednesday, January 02, 2008 7:32 AM
To: Jason Coy
Cc: address@hidden
Subject: Re: [Bug-gsl] Wavelet DWT speedup
At Thu, 20 Dec 2007 23:27:21 -0500,
Jason Coy wrote:
>
> Enclosed is a patch file for the wavlelet/dwt.c file that speeds up the
> operation of the dwt_step function a bit by eliminating the need for the
> program to calculate the buffer offset repeatedly. The dwt.c file
contains
> the updated code.
> It increases speed at the cost of slightly more complicated code.
Thanks for the patch. What sort of speedup do you get with that?
--
Brian Gough