https://github.com/ethereum/trinity/pull/483

pr-483-tuplification.py

#!/usr/bin/env python

import timeit

def multiply(x):
    return x * 10

def test00(r=5):
    msg = tuple(x for x in range(r))

    uncles_hashes = map(
        multiply,
        (x for x in msg)
    )
    transaction_roots_and_trie_data = map(
        multiply,
        (x for x in msg)
    )

    body_bundles = tuple(zip(msg, transaction_roots_and_trie_data, uncles_hashes))
    return body_bundles

def test01(r=5):
    msg = tuple(x for x in range(r))

    uncles_hashes = map(
        multiply,
        tuple(x for x in msg)
    )
    transaction_roots_and_trie_data = map(
        multiply,
        tuple(x for x in msg)
    )

    body_bundles = tuple(zip(msg, transaction_roots_and_trie_data, uncles_hashes))
    return body_bundles

def test10(r=5):
    msg = tuple(x for x in range(r))

    uncles_hashes = tuple(map(
        multiply,
        (x for x in msg)
    ))
    transaction_roots_and_trie_data = tuple(map(
        multiply,
        (x for x in msg)
    ))

    body_bundles = tuple(zip(msg, transaction_roots_and_trie_data, uncles_hashes))
    return body_bundles

def test11(r=5):
    msg = tuple(x for x in range(r))

    uncles_hashes = tuple(map(
        multiply,
        tuple(x for x in msg)
    ))
    transaction_roots_and_trie_data = tuple(map(
        multiply,
        tuple(x for x in msg)
    ))

    body_bundles = tuple(zip(msg, transaction_roots_and_trie_data, uncles_hashes))
    return body_bundles

nmsgelems = 500 # default is 5
ntimes = 1_000_000 # default is 1 million
print('test00:', timeit.timeit('test00(nmsgelems)', number=ntimes, globals=globals()))
print('test01:', timeit.timeit('test01(nmsgelems)', number=ntimes, globals=globals()))
print('test10:', timeit.timeit('test10(nmsgelems)', number=ntimes, globals=globals()))
print('test11:', timeit.timeit('test11(nmsgelems)', number=ntimes, globals=globals()))