numpy division vs multiplication

div-vs-mul.py

import perfplot
import numpy as np


def div(ab):
    a, b = ab
    return a / b


def mul(ab):
    a, b = ab
    return a * b


b = perfplot.bench(
    setup=lambda n: np.random.rand(2, n),
    kernels=[div, mul],
    n_range=[2 ** k for k in range(23)],
    equality_check=None
)
b.save("out.png")
b.show()