timing comparison

I compiled today from current source and from an older
tarball, and was
quite surprised to find an enormous difference in execution
time.


$ time convert-6.3.1-7 B1.tif B1.ps

real       19.74
user       19.29
sys         0.35


$ time convert-5.5.7-36 B1.tif B1.ps

real        0.89
user        0.52
sys         0.27


Running ldd:

convert-6.3.1-7 needs:
	libMagick.so.10 => /usr/local/lib/libMagick.so.10
	libWand.so.10 => /usr/local/lib/libWand.so.10
	/usr/lib/liblcms.so.1
	/usr/lib/libtiff.so.3
	/usr/lib/libjpeg.so.62
	/usr/X11R6/lib/libXext.so.6.4
	/usr/X11R6/lib/libXt.so.6.0
	/usr/lib/libfreetype.so.2
	/usr/lib/libz.so.1
	/usr/X11R6/lib/libSM.so.6.0
	/usr/X11R6/lib/libICE.so.6.4
	/usr/X11R6/lib/libX11.so.6.2
	/usr/lib/libsocket.so.2
	/usr/lib/libm.so.1
	/usr/lib/libcrypt.so
	/usr/lib/libc.so.1

convert-5.5.7-36 needs:
	/usr/lib/libjbig.so.1
	/usr/lib/liblcms.so.1
	/usr/lib/libtiff.so.3
	/usr/lib/libfreetype.so.2
	/usr/lib/libjasper.so.1
	/usr/lib/libjpeg.so.62
	/usr/lib/libpng.so.2
	/usr/lib/libwmflite.so.7
	/usr/X11R6/lib/libXext.so.6.4
	/usr/X11R6/lib/libSM.so.6.0
	/usr/X11R6/lib/libICE.so.6.4
	/usr/X11R6/lib/libX11.so.6.2
	/usr/lib/libxml2.so.8
	/usr/lib/libtrio.so.1
	/usr/lib/libsocket.so.2
	/usr/lib/libz.so.1
	/usr/lib/libm.so.1
	/usr/lib/libcrypt.so
	/usr/lib/libc.so.1

-- 
JP
	==> http://www.frappr.com/cusm
 <==
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Magick-bugsimagemagick.org
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bugs

Glenn Randers-Pehrson typed (on Fri, Jan 19, 2007 at
12:56:22AM -0500):
| At 03:20 PM 1/18/2007 -0500, Jean-Pierre Radley wrote:
| >I compiled today from current source and from an older
tarball, and was
| >quite surprised to find an enormous difference in
execution time.
| >
| >
| >$ time convert-6.3.1-7 B1.tif B1.ps
| >
| >real       19.74
| >user       19.29
| >sys         0.35
| >
| >
| >$ time convert-5.5.7-36 B1.tif B1.ps
| >
| >real        0.89
| >user        0.52
| >sys         0.27
| 
| Are you comparing 8-bit versus 16-bit builds?
| 
| Type "convert-6.3.1-7 | head -1" and
"convert-5.5.7-36 | head -1"
| and look for Q8 or Q16

Both show Q16.

-- 
JP
	==> http://www.frappr.com/cusm
 <==
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