Update cache calculation in gdal2tiles.py

See #2020
OSGeo · Nov 15, 2019 · eec2ce0 · eec2ce0
1 parent f80e9b8
commit eec2ce0
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/gdal/swig/python/scripts/gdal2tiles.py b/gdal/swig/python/scripts/gdal2tiles.py
@@ -2867,8 +2867,8 @@ def single_threaded_tiling(input_file, output_folder, options):
 def multi_threaded_tiling(input_file, output_folder, options):
     nb_processes = options.nb_processes or 1
 
-    # Make sure that all processes do not consume more than GDAL_CACHEMAX
-    os.environ['GDAL_CACHEMAX'] = '%d' % int(gdal.GetCacheMax() / nb_processes)
+    # Make sure that all processes do not consume more than `gdal.GetCacheMax()`
+    os.environ['GDAL_CACHEMAX'] = '%d' % max(1, int(gdal.GetCacheMax() / 1024 / 1024 / nb_processes))
 
     (conf_receiver, conf_sender) = Pipe(False)