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28
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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)
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