Mercurial > hg
annotate mercurial/lsprofcalltree.py @ 41160:a9905045b992
tests: get access to thirdparty.cbor without requiring it to be installed
This makes the test a noop when run from a tarball, but in return we can stop
shipping a library we don't use.
Differential Revision: https://phab.mercurial-scm.org/D5523
author | Augie Fackler <augie@google.com> |
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date | Mon, 07 Jan 2019 18:41:53 -0500 |
parents | 720355c7b7c9 |
children | 2372284d9457 |
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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 |
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14 |
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15 from . import ( |
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16 pycompat, |
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17 ) |
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18 |
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19 def label(code): |
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20 if isinstance(code, str): |
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21 # built-in functions ('~' sorts at the end) |
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22 return '~' + pycompat.sysbytes(code) |
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23 else: |
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24 return '%s %s:%d' % (pycompat.sysbytes(code.co_name), |
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25 pycompat.sysbytes(code.co_filename), |
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26 code.co_firstlineno) |
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27 |
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28 class KCacheGrind(object): |
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29 def __init__(self, profiler): |
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30 self.data = profiler.getstats() |
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31 self.out_file = None |
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32 |
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33 def output(self, out_file): |
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34 self.out_file = out_file |
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35 out_file.write(b'events: Ticks\n') |
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36 self._print_summary() |
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37 for entry in self.data: |
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38 self._entry(entry) |
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39 |
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40 def _print_summary(self): |
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41 max_cost = 0 |
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42 for entry in self.data: |
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43 totaltime = int(entry.totaltime * 1000) |
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44 max_cost = max(max_cost, totaltime) |
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45 self.out_file.write(b'summary: %d\n' % max_cost) |
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46 |
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47 def _entry(self, entry): |
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48 out_file = self.out_file |
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49 |
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50 code = entry.code |
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51 if isinstance(code, str): |
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52 out_file.write(b'fi=~\n') |
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53 else: |
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54 out_file.write(b'fi=%s\n' % pycompat.sysbytes(code.co_filename)) |
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55 |
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56 out_file.write(b'fn=%s\n' % label(code)) |
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57 |
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58 inlinetime = int(entry.inlinetime * 1000) |
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59 if isinstance(code, str): |
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60 out_file.write(b'0 %d\n' % inlinetime) |
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61 else: |
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62 out_file.write(b'%d %d\n' % (code.co_firstlineno, inlinetime)) |
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63 |
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64 # recursive calls are counted in entry.calls |
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65 if entry.calls: |
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66 calls = entry.calls |
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67 else: |
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68 calls = [] |
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69 |
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70 if isinstance(code, str): |
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71 lineno = 0 |
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72 else: |
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73 lineno = code.co_firstlineno |
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74 |
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75 for subentry in calls: |
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76 self._subentry(lineno, subentry) |
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77 |
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78 out_file.write(b'\n') |
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79 |
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80 def _subentry(self, lineno, subentry): |
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81 out_file = self.out_file |
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82 code = subentry.code |
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83 out_file.write(b'cfn=%s\n' % label(code)) |
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84 if isinstance(code, str): |
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85 out_file.write(b'cfi=~\n') |
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86 out_file.write(b'calls=%d 0\n' % subentry.callcount) |
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87 else: |
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88 out_file.write(b'cfi=%s\n' % pycompat.sysbytes(code.co_filename)) |
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89 out_file.write(b'calls=%d %d\n' % ( |
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90 subentry.callcount, code.co_firstlineno)) |
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91 |
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92 totaltime = int(subentry.totaltime * 1000) |
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93 out_file.write(b'%d %d\n' % (lineno, totaltime)) |