Index: src/options.hpp
--- src/options.hpp.orig
+++ src/options.hpp
@@ -103,7 +103,7 @@ struct options_t
     /// 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 = 1;
 
