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annotate mercurial/lsprofcalltree.py @ 37178:68ee61822182

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thirdparty: port zope.interface to relative imports By using relative imports, we're guaranteed to get modules vendored with Mercurial rather than other random modules that might be in sys.path. My editor strips trailing whitespace on save. So some minor source code cleanup was also performed as part of this commit. # no-check-commit because some modified lines have double newlines Differential Revision: https://phab.mercurial-scm.org/D2930
author Gregory Szorc <gregory.szorc@gmail.com>
date Wed, 21 Mar 2018 19:52:30 -0700
parents 5a988b3c9645
children 1ae0faa14797
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1 """
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2 lsprofcalltree.py - lsprof output which is readable by kcachegrind
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3
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4 Authors:
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5 * David Allouche <david <at> allouche.net>
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6 * Jp Calderone & Itamar Shtull-Trauring
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7 * Johan Dahlin
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8
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9 This software may be used and distributed according to the terms
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10 of the GNU General Public License, incorporated herein by reference.
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11 """
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12
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13 from __future__ import absolute_import, print_function
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14
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15 def label(code):
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16 if isinstance(code, str):
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17 return '~' + code # built-in functions ('~' sorts at the end)
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18 else:
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19 return '%s %s:%d' % (code.co_name,
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20 code.co_filename,
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21 code.co_firstlineno)
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22
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23 class KCacheGrind(object):
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24 def __init__(self, profiler):
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25 self.data = profiler.getstats()
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26 self.out_file = None
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27
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28 def output(self, out_file):
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29 self.out_file = out_file
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30 print('events: Ticks', file=out_file)
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31 self._print_summary()
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32 for entry in self.data:
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33 self._entry(entry)
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35 def _print_summary(self):
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36 max_cost = 0
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37 for entry in self.data:
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38 totaltime = int(entry.totaltime * 1000)
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39 max_cost = max(max_cost, totaltime)
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40 print('summary: %d' % max_cost, file=self.out_file)
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42 def _entry(self, entry):
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43 out_file = self.out_file
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45 code = entry.code
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46 if isinstance(code, str):
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47 print('fi=~', file=out_file)
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48 else:
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49 print('fi=%s' % code.co_filename, file=out_file)
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50 print('fn=%s' % label(code), file=out_file)
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52 inlinetime = int(entry.inlinetime * 1000)
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53 if isinstance(code, str):
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54 print('0 ', inlinetime, file=out_file)
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55 else:
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56 print('%d %d' % (code.co_firstlineno, inlinetime), file=out_file)
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58 # recursive calls are counted in entry.calls
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59 if entry.calls:
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60 calls = entry.calls
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61 else:
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62 calls = []
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63
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64 if isinstance(code, str):
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65 lineno = 0
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66 else:
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67 lineno = code.co_firstlineno
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68
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69 for subentry in calls:
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70 self._subentry(lineno, subentry)
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71 print(file=out_file)
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73 def _subentry(self, lineno, subentry):
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74 out_file = self.out_file
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75 code = subentry.code
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76 print('cfn=%s' % label(code), file=out_file)
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77 if isinstance(code, str):
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78 print('cfi=~', file=out_file)
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79 print('calls=%d 0' % subentry.callcount, file=out_file)
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80 else:
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81 print('cfi=%s' % code.co_filename, file=out_file)
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82 print('calls=%d %d' % (
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83 subentry.callcount, code.co_firstlineno), file=out_file)
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85 totaltime = int(subentry.totaltime * 1000)
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86 print('%d %d' % (lineno, totaltime), file=out_file)