change the queue ratio config setting

to avoid breaking old configs
also increase the default amount of work done per tick.

README.md

@@ -25,4 +25,6 @@ It is primarily intended for mapgen v6, but it should work fine when used with m
 * biome_lib:find_valid_wall()
 * biome_lib:is_node_loaded()
 
-For a complete description of these functions as well as several of the internal variables within the mod, [read the API.txt document](https://raw.githubusercontent.com/minetest-mods/biome_lib/master/API.txt) included in this package.
+For a complete description of these functions as well as several of the internal variables within the mod, see `API.txt`.
+
+**Configuration:** This mod has several variables you can set in your `minetest.conf` to change things a bit, from the default nodes it uses, to the debug log level and the block queue behavior.  For a list with complete descriptions, see `settingtypes.txt`.

init.lua

@@ -72,8 +72,8 @@ biome_lib.default_grow_nodes =   c5 and tableize(c5) or {"default:dirt_with_gras
 
 biome_lib.debug_log_level = tonumber(minetest.settings:get("biome_lib_debug_log_level")) or 0
 
-local rr = tonumber(minetest.settings:get("biome_lib_queue_run_ratio")) or -100
-biome_lib.queue_run_ratio = 100 - rr
+local rr = tonumber(minetest.settings:get("biome_lib_queue_ratio")) or -200
+biome_lib.queue_ratio = 100 - rr
 biome_lib.entries_per_step = math.max(-rr, 1)
 
 -- the timer that manages the block timeout is in microseconds, but the timer
@@ -559,7 +559,7 @@ end
 minetest.register_globalstep(function(dtime)
 	if not biome_lib.block_log[1] then return end -- the block log is empty
 
-	if math.random(100) > biome_lib.queue_run_ratio then return end
+	if math.random(100) > biome_lib.queue_ratio then return end
 	for s = 1, biome_lib.entries_per_step do
 		biome_lib.generate_block()
 	end

settingtypes.txt

@@ -28,7 +28,7 @@ biome_lib_default_ground_nodes (List of default root nodes) string default:dirt_
 # that many actions are executed on every single tick, skipping none.
 # More negative means more throughput, at the expense of lag.  On fast PC's,
 # a setting of between -500 and -2000 might be good.
-biome_lib_queue_run_ratio (Queue run ratio) int -100
+biome_lib_queue_ratio (Queue run ratio) int -200
 
 # Minetest's map generator allows neighboring areas to overflow into one
 # another, to create smooth terrain, but it often hands the map blocks that