Index: src/options.hpp
--- src/options.hpp.orig
+++ src/options.hpp
@@ -144,7 +144,7 @@ class options_t (public)
     /// Minimum zoom level for tile expiry list
     uint32_t expire_tiles_zoom_min = 0;
 
-    int cache = 800; ///< Memory usable for cache in MB
+    int cache = 100; ///< Memory usable for cache in MB
 
     unsigned int num_procs;