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Simple hashing benchmark for Python 2 and 3
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| #!/usr/bin/env python3 | |
| from __future__ import print_function | |
| import os | |
| import time | |
| import sys | |
| if sys.version_info.major >= 3: | |
| timer = time.perf_counter | |
| else: | |
| timer = time.time | |
| constructors = ( | |
| '_md5.md5', '_hashlib.openssl_md5', | |
| '_sha1.sha1', '_hashlib.openssl_sha1', | |
| '_sha256.sha224', '_hashlib.openssl_sha224', | |
| '_sha256.sha256', '_hashlib.openssl_sha256', | |
| '_sha512.sha384', '_hashlib.openssl_sha384', | |
| '_sha512.sha512', '_hashlib.openssl_sha512', | |
| '_sha3.sha3_224', | |
| '_sha3.sha3_256', | |
| '_sha3.sha3_384', | |
| '_sha3.sha3_512', | |
| '_sha3.shake_128', | |
| '_sha3.shake_256', | |
| '_blake2.blake2b', '_blake2.blake2s', | |
| ) | |
| def bench(factory, rounds, data): | |
| # warm up | |
| h = factory(data) | |
| args = (16,) if h.digest_size == 0 else () | |
| h .digest(*args) | |
| h = factory() | |
| start = timer() | |
| for i in range(rounds): | |
| h.update(data) | |
| h.digest(*args) | |
| return timer() - start | |
| def main(): | |
| rounds = 256 | |
| data = os.urandom(1024*1024) | |
| print(sys.version) | |
| with open('/proc/cpuinfo') as f: | |
| for line in f: | |
| if line.startswith('model name'): | |
| print('CPU:', line.split(':')[1].strip()) | |
| break | |
| print("{} times 1 MiB random data".format(rounds)) | |
| print() | |
| missing = [] | |
| for name in constructors: | |
| modname, funcname = name.split('.') | |
| try: | |
| mod = __import__(modname) | |
| except ImportError: | |
| missing.append(name) | |
| else: | |
| func = getattr(mod, funcname) | |
| dur = bench(func, rounds, data) | |
| print('{0:<25} {1:0.0f} MiB/sec'.format(name, rounds/dur)) | |
| if missing: | |
| print('Missing: {}'.format(', '.join(missing))) | |
| if __name__ == '__main__': | |
| main() |
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