annotate mercurial/lsprofcalltree.py @ 37911:0a79fb64118e

revset: use resolvehexnodeidprefix() in id() predicate (BC) We now have a public method for this purpose, so we don't need to access the private revlog._partialmatch(). Also, I'll probably make some changes to resolvehexnodeidprefix() later, and I want those to be reflected by the id() predicate. Note that this breaks a test case, because we now resolve the prefix in the unfiltered repo and get an ambiguous lookup, which results in no revision being added to the revset. The test case was already documented to be broken even though it wasn't. It's important to note that {shortest(node)} already uses the unfiltered repo, so we're not going to break people who get the prefix from there. I think we may not want to ever use shortest() in the filtered repo. It seems unlikely to be enough of a win to matter much. For example, in my hg repo, it would save me only 0.2 hex digits. In another repo that only I modify, it saves a little more, but it's still only 0.29 hex digits. It seems unlikely that people will prune enough commits that only 1/16 of the commits are visible (which is what it would take a to save a single hex digit). Instead, I'm working on another approach: allow ambiguous matches to be disambiguated within a user-specified revset. Whether or not that pans out, I hope we're okay with this little change in behavior for now and we can decide what to do about it later. Differential Revision: https://phab.mercurial-scm.org/D3311
author Martin von Zweigbergk <martinvonz@google.com>
date Mon, 07 May 2018 14:32:55 -0700
parents 5a988b3c9645
children 1ae0faa14797
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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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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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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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42 def _entry(self, entry):
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43 out_file = self.out_file
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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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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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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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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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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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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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85 totaltime = int(subentry.totaltime * 1000)
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86 print('%d %d' % (lineno, totaltime), file=out_file)