Re: [libcvd-members] SubImages no longer need to be distinct from BasicImages.

[E. Rosten]

On Wed, 29 Oct 2008, Georg Klein wrote:

> gcc version 4.1.2 20070925 (Red Hat 4.1.2-33)
>
> forloop 8.26731  (494985830000)
> imageref 9.94063  (494985830000)
> basicimage_iterator 6.41841  (494985830000)
> subimage_iterator 8.32609  (494985830000)
> subimage_iterator_fastend 8.35848  (494985830000)
> subimage_iterator_stl 8.34101  (494985830000)
> basicimage_iterator_stl 6.43227  (494985830000)
>
> Reducing image size to 20x20 & boosting iterations:
> forloop 3.21801  (197090000000)
> imageref 4.22899  (197090000000)
> basicimage_iterator 2.28253  (197090000000)
> subimage_iterator 3.39948  (197090000000)
> subimage_iterator_fastend 4.62725  (197090000000)
> subimage_iterator_stl 4.89984  (197090000000)
> basicimage_iterator_stl 2.2789  (197090000000)




Same CPU, gcc 4.2, -O3 on a 20x20 image with 10000000 iterations:

forloop 4.1284  (197090000000)
imageref 7.90586  (197090000000)
basicimage_iterator 2.7197  (197090000000)
subimage_iterator 6.30506  (197090000000)
subimage_iterator_fastend 6.85669  (197090000000)
subimage_iterator_stl 6.26535  (197090000000)
basicimage_iterator_stl 2.71647  (197090000000)


Maybe they do still need to be distinct.

-Ed

--
(You can't go wrong with psycho-rats.)(http://mi.eng.cam.ac.uk/~er258)

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