Em Tue, 31 Jan 2017 09:44:10 +0100
Markus Heiser <markus.hei...@darmarit.de> escreveu:

> BTW, my 'convert' (ImageMagick) is very slow and CPU consuming:
> 
>    GENPDF  Documentation/media/uapi/v4l/selection.svg
> 
> takes approximately 20% - 30% of the **complete** build time
> of the 'pdfdocs' target. Its only with 'selection.svg'. The
> other conversions are fast.
> 
>     Is this only to me?
> 
> Here is what I have installed ...
> 
> $ convert -version
> Version: ImageMagick 6.8.9-9 Q16 x86_64 2016-11-29 http://www.imagemagick.org
> Copyright: Copyright (C) 1999-2014 ImageMagick Studio LLC
> Features: DPC Modules OpenMP
> Delegates: bzlib cairo djvu fftw fontconfig freetype jbig jng jpeg lcms lqr 
> ltdl lzma openexr pangocairo png rsvg tiff wmf x xml zlib

Here, it took about 4 seconds to build it (CPU is Xeon(R) CPU E5-2670 0 @ 
2.60GHz):

$ time convert Documentation/media/uapi/v4l/selection.svg 
Documentation/media/uapi/v4l/selection.pdf

real    0m4.818s
user    0m57.714s
sys     0m0.508s

$ convert -version
Version: ImageMagick 6.9.3-0 Q16 x86_64 2016-05-14 http://www.imagemagick.org
Copyright: Copyright (C) 1999-2016 ImageMagick Studio LLC
License: http://www.imagemagick.org/script/license.php
Features: Cipher DPC Modules OpenMP 
Delegates (built-in): bzlib cairo djvu fftw fontconfig freetype gslib jbig jng 
jp2 jpeg lcms ltdl lzma openexr pangocairo png ps rsvg tiff webp wmf x xml zlib

It is not too slow on my desktop with Intel(R) Core(TM) i7-6770HQ CPU @ 2.60GHz:

$ time convert Documentation/media/uapi/v4l/selection.svg 
Documentation/media/uapi/v4l/selection.pdf

real    0m12.485s
user    0m53.602s
sys     0m0.340s

This image is complex, as it has two tux images, where one of them
is cropped.




Thanks,
Mauro
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