Re: [Gimp-user] Benchmarking Gimp/GEGL

I followed your suggestions and built
babl-0.1.11/gegl-0.2.1/Gimp-2.8.0 using -Ofast -ffast-math
-ftree-vectorize. Using these flags, I reran the test at the top of
the thread. The c2g rendering on my machine is now 36 seconds as
compared to 6 minutes. I am impressed. :)

Now to test out gimp 2.9.1. That should be fun.

On Sun, Apr 29, 2012 at 6:54 AM, Øyvind Kolås <pippin gimp org> wrote:
On Sun, Apr 29, 2012 at 10:44 AM, Jernej Simončič
<jernej|s-gmane eternallybored org> wrote:
On Sun, 29 Apr 2012 03:31:26 +0200, Øyvind Kolås wrote:
It also turns out that babl and GEGL on win32 seem to be compiled
practically without optimization and without taking modern instruction
sets into account, making any testing of them on windows
unrepresentative of their actual performance.

What are the recommended optimization flags?

On win32, no idea, perhaps look at what compiler flags are being used
on linux? This is signal processing code and everything from
-ffast-math to -ftree-vectorize and probably more are important.

«The future is already here. It's just not very evenly distributed»
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