luajit 	5.31 5.44 5.49
lua		5.23 5.75 5.4

				local startt=os.clock()
				for i=0,10000,1 do
				local node={}
				node.name = "air"
				minetest.env:set_node(pos,node)
				end
				local endt=os.clock()
				print(dump(endt-startt))