Mercurial > hg
annotate mercurial/lsprofcalltree.py @ 51725:bbe59cc5d2e1
rust-changelog: accessing the index
The `Index` object is currently the one providing all DAG related
algorithms, starting with simple ancestors iteration up to more
advanced ones (ranges, common ancestors…).
From pure Rust code, there was no way to access the changelog index for
a given `Repository`, probably because `rhg` does not use any such algorithm
yet.
author | Georges Racinet <georges.racinet@cloudcrane.io> |
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date | Mon, 22 Jul 2024 18:20:29 +0200 |
parents | 642e31cb55f0 |
children | f4733654f144 |
rev | line source |
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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 |
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14 from . import pycompat |
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16 |
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17 def label(code): |
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18 if isinstance(code, str): |
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19 # built-in functions ('~' sorts at the end) |
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20 return b'~' + pycompat.sysbytes(code) |
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21 else: |
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22 return b'%s %s:%d' % ( |
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23 pycompat.sysbytes(code.co_name), |
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24 pycompat.sysbytes(code.co_filename), |
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25 code.co_firstlineno, |
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26 ) |
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27 |
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28 |
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29 class KCacheGrind: |
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30 def __init__(self, profiler): |
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31 self.data = profiler.getstats() |
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32 self.out_file = None |
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33 |
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34 def output(self, out_file): |
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35 self.out_file = out_file |
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36 out_file.write(b'events: Ticks\n') |
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37 self._print_summary() |
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38 for entry in self.data: |
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39 self._entry(entry) |
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40 |
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41 def _print_summary(self): |
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42 max_cost = 0 |
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43 for entry in self.data: |
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44 totaltime = int(entry.totaltime * 1000) |
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45 max_cost = max(max_cost, totaltime) |
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46 self.out_file.write(b'summary: %d\n' % max_cost) |
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47 |
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48 def _entry(self, entry): |
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49 out_file = self.out_file |
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50 |
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51 code = entry.code |
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52 if isinstance(code, str): |
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53 out_file.write(b'fi=~\n') |
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54 else: |
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55 out_file.write(b'fi=%s\n' % pycompat.sysbytes(code.co_filename)) |
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56 |
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57 out_file.write(b'fn=%s\n' % label(code)) |
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58 |
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59 inlinetime = int(entry.inlinetime * 1000) |
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60 if isinstance(code, str): |
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61 out_file.write(b'0 %d\n' % inlinetime) |
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62 else: |
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63 out_file.write(b'%d %d\n' % (code.co_firstlineno, inlinetime)) |
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64 |
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65 # recursive calls are counted in entry.calls |
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66 if entry.calls: |
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67 calls = entry.calls |
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68 else: |
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69 calls = [] |
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70 |
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71 if isinstance(code, str): |
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72 lineno = 0 |
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73 else: |
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74 lineno = code.co_firstlineno |
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75 |
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76 for subentry in calls: |
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77 self._subentry(lineno, subentry) |
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78 |
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79 out_file.write(b'\n') |
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80 |
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81 def _subentry(self, lineno, subentry): |
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82 out_file = self.out_file |
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83 code = subentry.code |
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84 out_file.write(b'cfn=%s\n' % label(code)) |
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85 if isinstance(code, str): |
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86 out_file.write(b'cfi=~\n') |
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87 out_file.write(b'calls=%d 0\n' % subentry.callcount) |
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88 else: |
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89 out_file.write(b'cfi=%s\n' % pycompat.sysbytes(code.co_filename)) |
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90 out_file.write( |
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91 b'calls=%d %d\n' % (subentry.callcount, code.co_firstlineno) |
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92 ) |
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93 |
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94 totaltime = int(subentry.totaltime * 1000) |
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95 out_file.write(b'%d %d\n' % (lineno, totaltime)) |