{
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  {
   "cell_type": "markdown",
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   "source": [
    "## Comparing Cython, mpypyc, and default Python speed\n",
    "\n",
    "On a simple thing:\n",
    "- mypyc gives a 10x speed-up\n",
    "- cython-3 a 40x speed-up"
   ]
  },
  {
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   "execution_count": 1,
   "id": "98f1413e-e664-4c0e-9182-556d7f192319",
   "metadata": {
    "tags": []
   },
   "outputs": [],
   "source": [
    "%load_ext mypyc_ipython"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "id": "5286f9f6-347b-4c84-870f-677f32eb935d",
   "metadata": {
    "tags": []
   },
   "outputs": [],
   "source": [
    "def py_fibonacci(n: int) -> int:\n",
    "    if n <= 1+1:\n",
    "        return 1\n",
    "    else:\n",
    "        return py_fibonacci(n-1) + py_fibonacci(n-2)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "id": "a0083738-2588-4923-92b3-135038c9a248",
   "metadata": {
    "tags": []
   },
   "outputs": [],
   "source": [
    "%%mypyc\n",
    "def my_fibonacci(n: int) -> int:\n",
    "    if n <= 2:\n",
    "        return 1\n",
    "    else:\n",
    "        return my_fibonacci(n-1) + my_fibonacci(n-2)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "id": "af675113-798c-46cc-9ce0-b607420fe720",
   "metadata": {
    "tags": []
   },
   "outputs": [],
   "source": [
    "%load_ext cython"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 5,
   "id": "3060e007-0887-47c2-bcf2-f304ecace0be",
   "metadata": {
    "tags": []
   },
   "outputs": [],
   "source": [
    "%%cython\n",
    "cpdef int cy_fibonacci(int n):\n",
    "    if n <= 2:\n",
    "        return 1\n",
    "    else:\n",
    "        return cy_fibonacci(n-1) + cy_fibonacci(n-2)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 6,
   "id": "444c2112-8c38-4064-b7df-3609375688fa",
   "metadata": {
    "tags": []
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "101 ms ± 503 µs per loop (mean ± std. dev. of 7 runs, 10 loops each)\n"
     ]
    }
   ],
   "source": [
    "%timeit py_fibonacci(30)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 7,
   "id": "1bec3d97-229d-479f-b18d-99402c4a19d2",
   "metadata": {
    "tags": []
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "8.55 ms ± 248 µs per loop (mean ± std. dev. of 7 runs, 100 loops each)\n"
     ]
    }
   ],
   "source": [
    "%timeit my_fibonacci(30)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 8,
   "id": "66da0aba-d10d-4204-a8dd-90100aa495d8",
   "metadata": {
    "tags": []
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "2.35 ms ± 75.3 µs per loop (mean ± std. dev. of 7 runs, 100 loops each)\n"
     ]
    }
   ],
   "source": [
    "%timeit cy_fibonacci(30)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "d2aa1e9d-a74b-4e00-9ea8-9f9baa12275b",
   "metadata": {},
   "outputs": [],
   "source": []
  }
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