Mercurial > hg > mercurial-crew-with-dirclash
annotate mercurial/lsprof.py @ 3726:752884db5037
transplant: recover added/removed files after failed application
author | Brendan Cully <brendan@kublai.com> |
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date | Thu, 30 Nov 2006 13:51:58 -0800 |
parents | 976b6b2a1613 |
children |
rev | line source |
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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 |
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add --lsprof option. 3x faster than --profile, more useful output.
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parents:
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2 # it is not installed by distutils |
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3 # |
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4 # small modifications made |
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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 |
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11 if packagescan.scan_in_progress: |
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12 raise packagescan.SkipPackage('_lsprof not available') |
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13 raise |
2422
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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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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() |