jimmer wrote:
Here's a gcc 4.7.1 compile of GraphicsMagick 1.3.20 (August 2014 release, default compilation settings: -O2) versus stock dmconvert.
Stepped in it this time, Bunky
The Graphics Magicke guys are shining examples for all : they go
way
out of their way to stamp out gcc-isms and make sure their code builds on anything. It's not a tiny little program, either ... straight through with Mipsy Pro. One pass, start to finish, woo hoo !!
Code:
Select all
urchin 1% gm -version
GraphicsMagick 1.4 snapshot-20140831 Q16 http://www.GraphicsMagick.org/
Copyright (C) 2002-2014 GraphicsMagick Group.
Additional copyrights and licenses apply to this software.
See http://www.GraphicsMagick.org/www/Copyright.html for details.
Feature Support:
Native Thread Safe yes
Large Files (> 32 bit) yes
Large Memory (> 32 bit) no
BZIP yes
DPS no
FlashPix no
FreeType yes
Ghostscript (Library) no
JBIG yes
JPEG-2000 yes
JPEG yes
Little CMS yes
Loadable Modules no
OpenMP no
PNG yes
TIFF yes
TRIO no
UMEM no
WebP no
WMF yes
X11 yes
XML yes
ZLIB yes
Host type: mips-sgi-irix6.5
Configured using the command:
./configure '--disable-openmp' '-without-webp' '--without-trio' '--with-quantum-depth=16' '--enable-shared' '--prefix=/usr/nekoware'
The only thing you have to do is disable OpenMP. There is a conflict between pthreads and sproc threads. After some discussion with Mr Magicke, it appears that GM doesn't really use OpenMP for much anyhow. I've thought of enabling large memory some day to see what happens but never got a roundtoit ....
Benchmarking of any kind is notoriously unreliable and I doubt anybody cares about IRIX and speed in any real world setting anymore, but the speed difference here seems quite 'real'.
Let's find some el biggo graphics to convert and I'll run Roaring Boring Alice against your Redbum. I can put up two DAT tapes and a DVD-RAM disk ...
Oh wait ! Can throw in a mouse pad, too. Although she looks a little ... well, anyway ...
