LuaJIT-2.0.5

LuaJIT is a Just-In-Time (JIT) compiler for the Lua programming language.

Project Homepage: http://luajit.org/

LuaJIT is Copyright (C) 2005-2017 Mike Pall. LuaJIT is free software, released under the MIT license. See full Copyright Notice in the COPYRIGHT file or in luajit.h.

Fibonacci Test

Run the fibonacci.lua use luajit on Windows:

cd test
.\fibonacci_luajit.bat

fibonacci.lua

Source code of fibonacci.lua:

function fibonacci(n)
    if n >= 3 then
        return fibonacci(n - 2) + fibonacci(n - 1)
    else
        return 1
    end
end

function main()
    print("Enter a number [1-45]: ")
    local n = io.read("*number")

    print("");
    local startTime = os.clock()
    local fib_n = fibonacci(n)
    local endTime = os.clock()

    print("fibonacci(40) = "..fib_n.."\n")
    print("Used time: "..(endTime - startTime).." seconds")
end

main()

Test Result

Enter a number [1-45]:
40

fibonacci(40) = 102334155

Used time: 0.53 seconds