crafting speed test

init.lua

-- file maintained at https://gist.github.com/est31/e477d9a624dced5cb274
-- tests basic crafting speed

local function crafting_loop()
	local x = minetest.get_us_time()
	local cnt = 20000
	local locnt = 50
	while cnt ~= 20000-locnt do
		minetest.get_craft_result({
			input = "normal",
			items = {"test:whatever"..cnt+1},
		})
		cnt = cnt - 1
	end
	local y = minetest.get_us_time()
	print('us time spent looking up: '..(y-x))
	print('ms spent per craft lookup: '..(y-x)/(locnt*1000)) 
end

local x = minetest.get_us_time()
local cnt = 20000
--simulate a heavily modded game like dreambuilder
print('filling up the craft table...')
while cnt ~= 0 do
	minetest.register_craft({
		output = "test:whatever"..cnt,
		recipe = {
			{"test:whatever"..cnt+1},
		}
	})
	cnt = cnt - 1
end
local y = minetest.get_us_time()
print('time spent registering: '..(y-x))
print('starting the crafting loop... ')
crafting_loop()

minetest.after(0.05, function()
	print('starting the crafting loop... ')
	crafting_loop()
end)