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annotate mercurial/lsprofcalltree.py @ 20885:f49d60fa40a5

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fncache: clean up fncache during strips Previously the fncache was cleaned up at read time by noticing when it was out of sync. This caused writes to happen outside the scope of transactions and could have caused race conditions. With this change, we'll keep the fncache up-to-date as we go by removing old entries during repair.strip.
author Durham Goode <durham@fb.com>
date Mon, 24 Mar 2014 15:43:15 -0700
parents beae42f3d93b
children 071af8d385a9
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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 def label(code):
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14 if isinstance(code, str):
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15 return '~' + code # built-in functions ('~' sorts at the end)
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16 else:
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17 return '%s %s:%d' % (code.co_name,
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18 code.co_filename,
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19 code.co_firstlineno)
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20
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21 class KCacheGrind(object):
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22 def __init__(self, profiler):
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23 self.data = profiler.getstats()
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24 self.out_file = None
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25
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26 def output(self, out_file):
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27 self.out_file = out_file
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28 print >> out_file, 'events: Ticks'
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29 self._print_summary()
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30 for entry in self.data:
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31 self._entry(entry)
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32
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33 def _print_summary(self):
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34 max_cost = 0
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35 for entry in self.data:
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36 totaltime = int(entry.totaltime * 1000)
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37 max_cost = max(max_cost, totaltime)
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38 print >> self.out_file, 'summary: %d' % (max_cost,)
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39
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40 def _entry(self, entry):
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41 out_file = self.out_file
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42
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43 code = entry.code
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44 #print >> out_file, 'ob=%s' % (code.co_filename,)
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45 if isinstance(code, str):
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46 print >> out_file, 'fi=~'
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47 else:
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48 print >> out_file, 'fi=%s' % (code.co_filename,)
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49 print >> out_file, 'fn=%s' % (label(code),)
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50
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51 inlinetime = int(entry.inlinetime * 1000)
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52 if isinstance(code, str):
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53 print >> out_file, '0 ', inlinetime
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54 else:
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55 print >> out_file, '%d %d' % (code.co_firstlineno, inlinetime)
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56
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57 # recursive calls are counted in entry.calls
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58 if entry.calls:
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59 calls = entry.calls
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60 else:
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61 calls = []
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62
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63 if isinstance(code, str):
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64 lineno = 0
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65 else:
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66 lineno = code.co_firstlineno
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67
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68 for subentry in calls:
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69 self._subentry(lineno, subentry)
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70 print >> out_file
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71
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72 def _subentry(self, lineno, subentry):
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73 out_file = self.out_file
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74 code = subentry.code
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75 #print >> out_file, 'cob=%s' % (code.co_filename,)
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76 print >> out_file, 'cfn=%s' % (label(code),)
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77 if isinstance(code, str):
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78 print >> out_file, 'cfi=~'
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79 print >> out_file, 'calls=%d 0' % (subentry.callcount,)
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80 else:
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81 print >> out_file, 'cfi=%s' % (code.co_filename,)
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82 print >> out_file, 'calls=%d %d' % (
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83 subentry.callcount, code.co_firstlineno)
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84
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85 totaltime = int(subentry.totaltime * 1000)
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86 print >> out_file, '%d %d' % (lineno, totaltime)