cpython/Lib/test/test_hashlib_speed.py
Gregory P. Smith f21a5f7739 [ sf.net patch # 1121611 ]
A new hashlib module to replace the md5 and sha modules.  It adds
support for additional secure hashes such as SHA-256 and SHA-512.  The
hashlib module uses OpenSSL for fast platform optimized
implementations of algorithms when available.  The old md5 and sha
modules still exist as wrappers around hashlib to preserve backwards
compatibility.
2005-08-21 18:45:59 +00:00

93 lines
2.9 KiB
Python

import sys, time
import hashlib
from test import test_support
def creatorFunc():
raise RuntimeError, "eek, creatorFunc not overridden"
def test_scaled_msg(scale, name):
iterations = 106201/scale * 20
longStr = 'Z'*scale
localCF = creatorFunc
start = time.time()
for f in xrange(iterations):
x = localCF(longStr).digest()
end = time.time()
print ('%2.2f' % (end-start)), "seconds", iterations, "x", len(longStr), "bytes", name
def test_create():
start = time.time()
for f in xrange(20000):
d = creatorFunc()
end = time.time()
print ('%2.2f' % (end-start)), "seconds", '[20000 creations]'
def test_zero():
start = time.time()
for f in xrange(20000):
x = creatorFunc().digest()
end = time.time()
print ('%2.2f' % (end-start)), "seconds", '[20000 "" digests]'
### this 'test' is not normally run. skip it if the test runner finds it
if __name__ != '__main__':
raise test_support.TestSkipped, "not a unit test (stand alone benchmark)"
hName = sys.argv[1]
#
# setup our creatorFunc to test the requested hash
#
if hName in ('_md5', '_sha'):
exec 'import '+hName
exec 'creatorFunc = '+hName+'.new'
print "testing speed of old", hName, "legacy interface"
elif hName == '_hashlib' and len(sys.argv) > 3:
import _hashlib
exec 'creatorFunc = _hashlib.%s' % sys.argv[2]
print "testing speed of _hashlib.%s" % sys.argv[2], getattr(_hashlib, sys.argv[2])
elif hName == '_hashlib' and len(sys.argv) == 3:
import _hashlib
exec 'creatorFunc = lambda x=_hashlib.new : x(%r)' % sys.argv[2]
print "testing speed of _hashlib.new(%r)" % sys.argv[2]
elif hasattr(hashlib, hName) and callable(getattr(hashlib, hName)):
creatorFunc = getattr(hashlib, hName)
print "testing speed of hashlib."+hName, getattr(hashlib, hName)
else:
exec "creatorFunc = lambda x=hashlib.new : x(%r)" % hName
print "testing speed of hashlib.new(%r)" % hName
try:
test_create()
except ValueError:
print
print "pass argument(s) naming the hash to run a speed test on:"
print " '_md5' and '_sha' test the legacy builtin md5 and sha"
print " '_hashlib' 'openssl_hName' 'fast' tests the builtin _hashlib"
print " '_hashlib' 'hName' tests builtin _hashlib.new(shaFOO)"
print " 'hName' tests the hashlib.hName() implementation if it exists"
print " otherwise it uses hashlib.new(hName)."
print
raise
test_zero()
test_scaled_msg(scale=106201, name='[huge data]')
test_scaled_msg(scale=10620, name='[large data]')
test_scaled_msg(scale=1062, name='[medium data]')
test_scaled_msg(scale=424, name='[4*small data]')
test_scaled_msg(scale=336, name='[3*small data]')
test_scaled_msg(scale=212, name='[2*small data]')
test_scaled_msg(scale=106, name='[small data]')
test_scaled_msg(scale=creatorFunc().digest_size, name='[digest_size data]')
test_scaled_msg(scale=10, name='[tiny data]')