Mercurial > hg
annotate mercurial/lsprofcalltree.py @ 33822:42ad7cc645a4
copies: add more details to the documentation of mergecopies()
This documentation is very helpful for any developer to understand what
copytracing is and what the function does. Since this is the main function of
doing copytracing, I have also included bits about copytracing in it.
This additions are picked from a doc by Stash@Fb. So thanks to him.
Differential Revision: https://phab.mercurial-scm.org/D409
author | Pulkit Goyal <7895pulkit@gmail.com> |
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date | Wed, 16 Aug 2017 00:25:20 +0530 |
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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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34 |
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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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41 |
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42 def _entry(self, entry): |
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43 out_file = self.out_file |
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44 |
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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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51 |
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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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57 |
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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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72 |
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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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84 |
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85 totaltime = int(subentry.totaltime * 1000) |
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86 print('%d %d' % (lineno, totaltime), file=out_file) |