[gegl] gegl: double default chunk-size

[Øyvind Kolås <ok src gnome org>]

commit 6f49645100a11e557b388b0144dab137a10475d9
Author: Øyvind Kolås <pippin gimp org>
Date:   Sun Jul 23 20:30:29 2017 +0200

    gegl: double default chunk-size
    
    The default chunk-size was 512x512, at least all point-filters/composers
    benefitfrom larger chunk-size, to avoid too big interaction regressions, first
    do a doubling and see. Larger chunk-sizes are beneficial for threading of ops
    in base classes - since it can avoid more contention for tile locks.

 gegl/gegl-config.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gegl/gegl-config.c b/gegl/gegl-config.c
index 1e27732..5a0a3f4 100644
--- a/gegl/gegl-config.c
+++ b/gegl/gegl-config.c
@@ -210,7 +210,7 @@ gegl_config_class_init (GeglConfigClass *klass)
                                    g_param_spec_int ("chunk-size",
                                                      "Chunk size",
                                                      "the number of pixels processed simultaneously by 
GEGL.",
-                                                     1, G_MAXINT, 512 * 512,
+                                                     1, G_MAXINT, 512 * 1024,
                                                      G_PARAM_READWRITE |
                                                      G_PARAM_CONSTRUCT));