Script for trying to reproduce https://laurenar.net/posts/python-simd/

test.py

import random

try:
    from numba import jit
except:
    def jit(**kwargs):
        return lambda f: f

@jit(nopython=True)
def arr_sum(arr):
    total = 0
    for i in range(len(arr)):
        total += arr[i]
    return total

# Invariant: Always has the same elements and thus the same sum.
l = list(range(65000))

def a():
    random.shuffle(l)

def b():
    return arr_sum(l)