[magick-developers] ImageMagick 6.3.5 compile flags big performance drop

[ademmler]

Hi Henrik!

It coud be that you compare a 8bit and a 16bit Version from ImageMagick.

type on the shell:
identify -version
Version: ImageMagick 6.2.8 11/16/06 Q8 http://www.imagemagick.org
Copyright: Copyright (C) 1999-2006 ImageMagick Studio LLC

Q8 = 8bit and Q16=16bit Version

I recomend compiling IM from the sources and use this option while  
configure: --with-quantum-depth=8
This improves speed drastically and I think 8bit depth is enough for  
daily work . . .

Alex

Am 12.07.2007 um 15:27 schrieb Henrik Zagerholm:

> Hello list,
>
> Im running debian and until recently I used their ImageMagick  
> package with version 6.2.4.
>
> Using this package I converted a 8 MB psd file to png in 3 seconds.
>
> Now I downloaded and compiled the latest source 6.3.5 code.
>
> Using the same convert command on the same file takes 17 seconds(!)
>
> Has anyone the slightest idea what could be wrong and what  
> configure flags that could have this much impact.
>
> The systems is a Intel P4 2.8GHz, with 1GB ram running debian etch.
>
> Thanks,
> Henrik
>
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