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 <pip...@gimp.org> wrote: >> On Sun, Apr 29, 2012 at 10:44 AM, Jernej Simončič >> <jernej|s-gm...@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/ >> _______________________________________________ >> gimp-user-list mailing list >> gimp-user-list@gnome.org >> http://mail.gnome.org/mailman/listinfo/gimp-user-list > _______________________________________________ > gimp-user-list mailing list > gimp-user-list@gnome.org > http://mail.gnome.org/mailman/listinfo/gimp-user-list _______________________________________________ gimp-user-list mailing list gimp-user-list@gnome.org http://mail.gnome.org/mailman/listinfo/gimp-user-list
