Re: [Gimp-user] Benchmarking Gimp/GEGL

[Patrick Horgan <phorgan1 yahoo com>]

On 05/12/2012 10:25 AM, Partha Bagchi wrote:
> 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. :)
If it makes such a difference, shouldn't they be defaults?

Patrick
> 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.
> >
> > /Ø
> > --
> > «The future is already here. It's just not very evenly distributed»
> >                                                  -- William Gibson
> > http://pippin.gimp.org/                            http://ffii.org/
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