Just for kicks, I timed how long it took to hash a 1Mb password on an EC2 small instance: >>> timeit.timeit('make_password(a, "asdfasdfasd")', setup="a = 'a' *

Just for kicks, I timed how long it took to hash a 1Mb password on an EC2 small instance: >>> timeit.timeit('make_password(a, "asdfasdfasd")', setup="a = 'a' * 1024 * 1024; from django.contrib.auth.hashers import make_password;", number=1) 206.77019500732422