Mercurial > hg > mercurial-crew-with-dirclash
annotate mercurial/lsprof.py @ 4661:a7e9b6b1adeb
Backed out changeset cfa477946181824f4c769580ebf59710090ba08a
Only printenv was changed, not the actual execution of hooks.
And not setting an empty value might cause problems on platforms
which can't always remove variables from the environment.
author | Thomas Arendsen Hein <thomas@intevation.de> |
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date | Thu, 21 Jun 2007 10:00:59 +0200 |
parents | 976b6b2a1613 |
children |
rev | line source |
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2422
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add --lsprof option. 3x faster than --profile, more useful output.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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1 # this is copied from the lsprof distro because somehow |
6aa75e77cafe
add --lsprof option. 3x faster than --profile, more useful output.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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2 # it is not installed by distutils |
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parents:
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3 # |
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4 # small modifications made |
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Vadim Gelfer <vadim.gelfer@gmail.com>
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5 |
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6 import sys |
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7 try: |
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8 from _lsprof import Profiler, profiler_entry, profiler_subentry |
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9 except ImportError, inst: |
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10 import packagescan |
976b6b2a1613
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Vadim Gelfer <vadim.gelfer@gmail.com>
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11 if packagescan.scan_in_progress: |
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12 raise packagescan.SkipPackage('_lsprof not available') |
976b6b2a1613
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13 raise |
2422
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parents:
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14 |
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15 __all__ = ['profile', 'Stats'] |
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16 |
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17 def profile(f, *args, **kwds): |
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18 """XXX docstring""" |
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19 p = Profiler() |
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20 p.enable(subcalls=True) |
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21 try: |
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22 ret = f(*args, **kwds) |
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23 finally: |
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24 p.disable() |
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25 return ret, Stats(p.getstats()) |
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26 |
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27 |
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28 class Stats(object): |
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29 """XXX docstring""" |
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30 |
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31 def __init__(self, data): |
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32 self.data = data |
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33 |
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34 def sort(self, crit="inlinetime"): |
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35 """XXX docstring""" |
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36 if crit not in profiler_entry.__dict__: |
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37 raise ValueError, "Can't sort by %s" % crit |
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38 self.data.sort(lambda b, a: cmp(getattr(a, crit), |
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39 getattr(b, crit))) |
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40 for e in self.data: |
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41 if e.calls: |
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42 e.calls.sort(lambda b, a: cmp(getattr(a, crit), |
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parents:
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43 getattr(b, crit))) |
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44 |
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45 def pprint(self, top=None, file=None, limit=None, climit=None): |
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46 """XXX docstring""" |
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47 if file is None: |
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48 file = sys.stdout |
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49 d = self.data |
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50 if top is not None: |
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51 d = d[:top] |
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52 cols = "% 12s %11.4f %11.4f %s\n" |
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53 hcols = "% 12s %12s %12s %s\n" |
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54 cols2 = "+%12s %11.4f %11.4f + %s\n" |
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55 file.write(hcols % ("CallCount", "Total(s)", |
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56 "Inline(s)", "module:lineno(function)")) |
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57 count = 0 |
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58 for e in d: |
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59 file.write(cols % (e.callcount, e.totaltime, |
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60 e.inlinetime, label(e.code))) |
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61 count += 1 |
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62 if limit is not None and count == limit: |
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63 return |
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64 ccount = 0 |
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65 if e.calls: |
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66 for se in e.calls: |
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67 file.write(cols % ("+%s" % se.callcount, |
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68 se.totaltime, se.inlinetime, |
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69 "+%s" % label(se.code))) |
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70 count += 1 |
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71 ccount += 1 |
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72 if limit is not None and count == limit: |
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73 return |
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74 if climit is not None and ccount == climit: |
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75 break |
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76 |
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77 def freeze(self): |
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78 """Replace all references to code objects with string |
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79 descriptions; this makes it possible to pickle the instance.""" |
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80 |
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81 # this code is probably rather ickier than it needs to be! |
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82 for i in range(len(self.data)): |
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83 e = self.data[i] |
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84 if not isinstance(e.code, str): |
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85 self.data[i] = type(e)((label(e.code),) + e[1:]) |
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86 if e.calls: |
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87 for j in range(len(e.calls)): |
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88 se = e.calls[j] |
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89 if not isinstance(se.code, str): |
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90 e.calls[j] = type(se)((label(se.code),) + se[1:]) |
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91 |
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92 _fn2mod = {} |
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93 |
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94 def label(code): |
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95 if isinstance(code, str): |
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96 return code |
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97 try: |
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98 mname = _fn2mod[code.co_filename] |
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99 except KeyError: |
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100 for k, v in sys.modules.iteritems(): |
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101 if v is None: |
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102 continue |
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103 if not hasattr(v, '__file__'): |
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104 continue |
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105 if not isinstance(v.__file__, str): |
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106 continue |
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107 if v.__file__.startswith(code.co_filename): |
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108 mname = _fn2mod[code.co_filename] = k |
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109 break |
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110 else: |
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111 mname = _fn2mod[code.co_filename] = '<%s>'%code.co_filename |
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112 |
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113 return '%s:%d(%s)' % (mname, code.co_firstlineno, code.co_name) |
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114 |
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115 |
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116 if __name__ == '__main__': |
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117 import os |
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118 sys.argv = sys.argv[1:] |
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119 if not sys.argv: |
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120 print >> sys.stderr, "usage: lsprof.py <script> <arguments...>" |
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121 sys.exit(2) |
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122 sys.path.insert(0, os.path.abspath(os.path.dirname(sys.argv[0]))) |
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123 stats = profile(execfile, sys.argv[0], globals(), locals()) |
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124 stats.sort() |
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125 stats.pprint() |