Mercurial > hg
annotate mercurial/lsprof.py @ 50896:b2b8c25f9462
hgwebmod: use sysstr to check for attribute presence
We do not need bytes here.
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Wed, 30 Aug 2023 13:28:09 +0200 |
parents | 642e31cb55f0 |
children | 18c8c18993f0 |
rev | line source |
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1 import _lsprof |
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2 import sys |
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3 |
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4 from .pycompat import getattr |
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5 |
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6 Profiler = _lsprof.Profiler |
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7 |
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8 # PyPy doesn't expose profiler_entry from the module. |
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9 profiler_entry = getattr(_lsprof, 'profiler_entry', None) |
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10 |
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11 __all__ = [b'profile', b'Stats'] |
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12 |
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13 |
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14 def profile(f, *args, **kwds): |
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15 """XXX docstring""" |
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16 p = Profiler() |
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17 p.enable(subcalls=True, builtins=True) |
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18 try: |
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19 f(*args, **kwds) |
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20 finally: |
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21 p.disable() |
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22 return Stats(p.getstats()) |
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23 |
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24 |
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25 class Stats: |
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26 """XXX docstring""" |
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27 |
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28 def __init__(self, data): |
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29 self.data = data |
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30 |
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31 def sort(self, crit="inlinetime"): |
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32 """XXX docstring""" |
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33 # profiler_entries isn't defined when running under PyPy. |
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34 if profiler_entry: |
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35 if crit not in profiler_entry.__dict__: |
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36 raise ValueError(b"Can't sort by %s" % crit) |
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37 elif self.data and not getattr(self.data[0], crit, None): |
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38 raise ValueError(b"Can't sort by %s" % crit) |
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39 |
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40 self.data.sort(key=lambda x: getattr(x, crit), reverse=True) |
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41 for e in self.data: |
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42 if e.calls: |
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43 e.calls.sort(key=lambda x: getattr(x, crit), reverse=True) |
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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 = b"% 12d %12d %11.4f %11.4f %s\n" |
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53 hcols = b"% 12s %12s %12s %12s %s\n" |
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54 file.write( |
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55 hcols |
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56 % ( |
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57 b"CallCount", |
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58 b"Recursive", |
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59 b"Total(s)", |
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60 b"Inline(s)", |
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61 b"module:lineno(function)", |
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62 ) |
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63 ) |
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64 count = 0 |
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65 for e in d: |
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66 file.write( |
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67 cols |
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68 % ( |
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69 e.callcount, |
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70 e.reccallcount, |
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71 e.totaltime, |
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72 e.inlinetime, |
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73 label(e.code), |
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74 ) |
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75 ) |
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76 count += 1 |
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77 if limit is not None and count == limit: |
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78 return |
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79 ccount = 0 |
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80 if climit and e.calls: |
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81 for se in e.calls: |
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82 file.write( |
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83 cols |
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84 % ( |
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85 se.callcount, |
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86 se.reccallcount, |
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87 se.totaltime, |
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88 se.inlinetime, |
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89 b" %s" % label(se.code), |
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90 ) |
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91 ) |
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92 count += 1 |
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93 ccount += 1 |
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94 if limit is not None and count == limit: |
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95 return |
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96 if climit is not None and ccount == climit: |
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97 break |
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98 |
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99 def freeze(self): |
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100 """Replace all references to code objects with string |
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101 descriptions; this makes it possible to pickle the instance.""" |
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102 |
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103 # this code is probably rather ickier than it needs to be! |
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104 for i in range(len(self.data)): |
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105 e = self.data[i] |
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106 if not isinstance(e.code, str): |
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107 self.data[i] = type(e)((label(e.code),) + e[1:]) |
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108 if e.calls: |
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109 for j in range(len(e.calls)): |
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110 se = e.calls[j] |
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111 if not isinstance(se.code, str): |
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112 e.calls[j] = type(se)((label(se.code),) + se[1:]) |
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113 |
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114 |
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115 _fn2mod = {} |
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116 |
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117 |
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118 def label(code): |
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119 if isinstance(code, str): |
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120 return code.encode('latin-1') |
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121 try: |
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122 mname = _fn2mod[code.co_filename] |
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123 except KeyError: |
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124 for k, v in list(sys.modules.items()): |
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125 if v is None: |
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126 continue |
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127 if not isinstance(getattr(v, '__file__', None), str): |
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128 continue |
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129 if v.__file__.startswith(code.co_filename): |
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130 mname = _fn2mod[code.co_filename] = k |
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131 break |
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132 else: |
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133 mname = _fn2mod[code.co_filename] = '<%s>' % code.co_filename |
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134 |
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135 res = '%s:%d(%s)' % (mname, code.co_firstlineno, code.co_name) |
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136 |
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137 return res.encode('latin-1') |