--- a/util/startup.lua	Fri May 07 16:47:58 2021 +0200
+++ b/util/startup.lua	Thu May 13 11:17:13 2021 +0100
@@ -14,7 +14,13 @@
 
 local original_logging_config;
 
-local default_gc_params = { mode = "incremental", threshold = 105, speed = 250 };
+local default_gc_params = {
+	mode = "incremental";
+	-- Incremental mode defaults
+	threshold = 105, speed = 500;
+	-- Generational mode defaults
+	minor_threshold = 20, major_threshold = 50;
+};
 
 local short_params = { D = "daemonize", F = "no-daemonize" };
 local value_params = { config = true };