Mercurial > cpython-lru_cache-weakref

annotate Lib/test/time_hashlib.py @ 78069:a8aa77458e12 3.2

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Add c_size_t and c_ssize_t to the ctypes summary table.
author Antoine Pitrou <solipsis@pitrou.net>
date Thu, 12 Jul 2012 20:31:50 +0200
parents 9834301a2fd3
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 # It's intended that this script be run by hand. It runs speed tests on
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2 # hashlib functions; it does not test for correctness.
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3
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4 import sys, time
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5 import hashlib
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6
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7
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8 def creatorFunc():
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9 raise RuntimeError("eek, creatorFunc not overridden")
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10
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11 def test_scaled_msg(scale, name):
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12 iterations = 106201/scale * 20
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13 longStr = 'Z'*scale
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14
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15 localCF = creatorFunc
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16 start = time.time()
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17 for f in range(iterations):
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18 x = localCF(longStr).digest()
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19 end = time.time()
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20
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21 print(('%2.2f' % (end-start)), "seconds", iterations, "x", len(longStr), "bytes", name)
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22
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23 def test_create():
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24 start = time.time()
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25 for f in range(20000):
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26 d = creatorFunc()
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27 end = time.time()
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28
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29 print(('%2.2f' % (end-start)), "seconds", '[20000 creations]')
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30
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31 def test_zero():
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32 start = time.time()
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33 for f in range(20000):
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34 x = creatorFunc().digest()
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35 end = time.time()
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36
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37 print(('%2.2f' % (end-start)), "seconds", '[20000 "" digests]')
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38
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39
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40
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41 hName = sys.argv[1]
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42
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43 #
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44 # setup our creatorFunc to test the requested hash
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45 #
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46 if hName in ('_md5', '_sha'):
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47 exec('import '+hName)
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48 exec('creatorFunc = '+hName+'.new')
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49 print("testing speed of old", hName, "legacy interface")
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50 elif hName == '_hashlib' and len(sys.argv) > 3:
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51 import _hashlib
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52 exec('creatorFunc = _hashlib.%s' % sys.argv[2])
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53 print("testing speed of _hashlib.%s" % sys.argv[2], getattr(_hashlib, sys.argv[2]))
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54 elif hName == '_hashlib' and len(sys.argv) == 3:
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55 import _hashlib
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56 exec('creatorFunc = lambda x=_hashlib.new : x(%r)' % sys.argv[2])
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57 print("testing speed of _hashlib.new(%r)" % sys.argv[2])
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58 elif hasattr(hashlib, hName) and hasattr(getattr(hashlib, hName), '__call__'):
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59 creatorFunc = getattr(hashlib, hName)
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60 print("testing speed of hashlib."+hName, getattr(hashlib, hName))
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61 else:
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62 exec("creatorFunc = lambda x=hashlib.new : x(%r)" % hName)
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63 print("testing speed of hashlib.new(%r)" % hName)
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64
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65 try:
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66 test_create()
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67 except ValueError:
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68 print()
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69 print("pass argument(s) naming the hash to run a speed test on:")
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70 print(" '_md5' and '_sha' test the legacy builtin md5 and sha")
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71 print(" '_hashlib' 'openssl_hName' 'fast' tests the builtin _hashlib")
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72 print(" '_hashlib' 'hName' tests builtin _hashlib.new(shaFOO)")
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73 print(" 'hName' tests the hashlib.hName() implementation if it exists")
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74 print(" otherwise it uses hashlib.new(hName).")
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75 print()
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76 raise
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77
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78 test_zero()
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79 test_scaled_msg(scale=106201, name='[huge data]')
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80 test_scaled_msg(scale=10620, name='[large data]')
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81 test_scaled_msg(scale=1062, name='[medium data]')
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82 test_scaled_msg(scale=424, name='[4*small data]')
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83 test_scaled_msg(scale=336, name='[3*small data]')
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84 test_scaled_msg(scale=212, name='[2*small data]')
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85 test_scaled_msg(scale=106, name='[small data]')
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86 test_scaled_msg(scale=creatorFunc().digest_size, name='[digest_size data]')
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87 test_scaled_msg(scale=10, name='[tiny data]')