[gegl] Set default tile-size to 128x128

[Øyvind Kolås <ok src gnome org>]

commit 342570865a64b0c25d4351adc5610f95ca1c0a14
Author: Øyvind Kolås <pippin gimp org>
Date:   Sat Jun 14 22:29:59 2014 +0200

    Set default tile-size to 128x128
    
    Performance of different tile-sizes on one given system, the tests are the
    tests in the perf subdir. All numbers are megabytes/second, the gimp
    projection test is for 8bpc gamma corrected on a 3 layer 8000x4000 document.
    best result(s) marked with *.
    
                      128x128 256x64 64x128 128x64 64x64 32x32 512x64 256x256 16x16
    gaussian-blur:      138*   128    139*   135   130    124   101     99      43
    bcontrast:          646    653*   623    640   500    180   384    375     413
    unsharp-mask:        87*    82     87*    86    87*    78    58     53      46
    rotate:              32     35     11     33    28     76*   37     35      70
    rotate-nearest:      38     39     12     38    31    115*   44     41     102
    bcontrast_4x:       445*   432    442    344   415    381   102    303     295
    bcontrast-minichunk:207    204    229    227   237    249*   52     12     213
    gimp projection:    112    104     83     90    61     21   130*    88       3

 gegl/gegl-config.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/gegl/gegl-config.c b/gegl/gegl-config.c
index 75d7001..ac374f9 100644
--- a/gegl/gegl-config.c
+++ b/gegl/gegl-config.c
@@ -181,7 +181,7 @@ gegl_config_class_init (GeglConfigClass *klass)
                                    g_param_spec_int ("tile-width",
                                                      "Tile width",
                                                      "default tile width for created buffers.",
-                                                     0, G_MAXINT, 512,
+                                                     0, G_MAXINT, 128,
                                                      G_PARAM_READWRITE |
                                                      G_PARAM_CONSTRUCT));
 
@@ -189,7 +189,7 @@ gegl_config_class_init (GeglConfigClass *klass)
                                    g_param_spec_int ("tile-height",
                                                      "Tile height",
                                                      "default tile height for created buffers.",
-                                                     0, G_MAXINT, 64,
+                                                     0, G_MAXINT, 128,
                                                      G_PARAM_READWRITE |
                                                      G_PARAM_CONSTRUCT));