Mercurial > hg
annotate contrib/perf.py @ 25018:93e015a3d1ea
commit: add ui.allowemptycommit config option
This adds a config flag that enables a user to make empty commits.
This is useful in a number of cases.
For instance, automation that creates release branches via
bookmarks may want to make empty commits to that release bookmark so that it
can't be fast-forwarded and so it can record information about the release
bookmark's creation. This is already possible with named branches, so making it
possible for bookmarks makes sense.
Another case we've wanted it is for mirroring repositories into Mercurial. We
have automation that syncs commits into hg by running things from the command
line. The ability to produce empty commits is useful for syncing unusual commits
from other VCS's.
In general, allowing the user to create the DAG as they see fit seems useful,
and when I mentioned this in IRC more than one person piped up and said they
were already hacking around this limitation by using mq, import, and
commit-dummy-change-then-amend-the-content-away style solutions.
author | Durham Goode <durham@fb.com> |
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date | Mon, 11 May 2015 16:18:28 -0700 |
parents | f5b527024fcc |
children | e8eb3ecdaa0c |
rev | line source |
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1 # perf.py - performance test routines |
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2 '''helper extension to measure performance''' |
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3 |
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4 from mercurial import cmdutil, scmutil, util, commands, obsolete |
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5 from mercurial import repoview, branchmap, merge, copies |
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6 import time, os, sys |
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7 import functools |
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8 |
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9 cmdtable = {} |
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10 command = cmdutil.command(cmdtable) |
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11 |
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12 def gettimer(ui, opts=None): |
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13 """return a timer function and formatter: (timer, formatter) |
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14 |
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15 This functions exist to gather the creation of formatter in a single |
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16 place instead of duplicating it in all performance command.""" |
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17 |
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18 # enforce an idle period before execution to counteract power management |
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19 time.sleep(ui.configint("perf", "presleep", 1)) |
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20 |
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21 if opts is None: |
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22 opts = {} |
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23 # redirect all to stderr |
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24 ui = ui.copy() |
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25 ui.fout = ui.ferr |
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26 # get a formatter |
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27 fm = ui.formatter('perf', opts) |
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28 return functools.partial(_timer, fm), fm |
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29 |
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30 def _timer(fm, func, title=None): |
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31 results = [] |
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32 begin = time.time() |
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33 count = 0 |
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34 while True: |
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35 ostart = os.times() |
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36 cstart = time.time() |
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37 r = func() |
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38 cstop = time.time() |
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39 ostop = os.times() |
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40 count += 1 |
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41 a, b = ostart, ostop |
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42 results.append((cstop - cstart, b[0] - a[0], b[1]-a[1])) |
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43 if cstop - begin > 3 and count >= 100: |
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44 break |
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45 if cstop - begin > 10 and count >= 3: |
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46 break |
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47 |
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48 fm.startitem() |
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49 |
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50 if title: |
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51 fm.write('title', '! %s\n', title) |
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52 if r: |
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53 fm.write('result', '! result: %s\n', r) |
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54 m = min(results) |
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55 fm.plain('!') |
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56 fm.write('wall', ' wall %f', m[0]) |
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57 fm.write('comb', ' comb %f', m[1] + m[2]) |
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58 fm.write('user', ' user %f', m[1]) |
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59 fm.write('sys', ' sys %f', m[2]) |
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60 fm.write('count', ' (best of %d)', count) |
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61 fm.plain('\n') |
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62 |
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63 @command('perfwalk') |
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64 def perfwalk(ui, repo, *pats): |
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65 timer, fm = gettimer(ui) |
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66 try: |
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67 m = scmutil.match(repo[None], pats, {}) |
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68 timer(lambda: len(list(repo.dirstate.walk(m, [], True, False)))) |
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69 except Exception: |
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70 try: |
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71 m = scmutil.match(repo[None], pats, {}) |
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72 timer(lambda: len([b for a, b, c in repo.dirstate.statwalk([], m)])) |
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73 except Exception: |
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74 timer(lambda: len(list(cmdutil.walk(repo, pats, {})))) |
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75 fm.end() |
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76 |
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77 @command('perfannotate') |
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78 def perfannotate(ui, repo, f): |
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79 timer, fm = gettimer(ui) |
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80 fc = repo['.'][f] |
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81 timer(lambda: len(fc.annotate(True))) |
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82 fm.end() |
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83 |
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84 @command('perfstatus', |
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85 [('u', 'unknown', False, |
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86 'ask status to look for unknown files')]) |
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87 def perfstatus(ui, repo, **opts): |
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88 #m = match.always(repo.root, repo.getcwd()) |
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90 # False)))) | |
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91 timer, fm = gettimer(ui) |
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92 timer(lambda: sum(map(len, repo.status(**opts)))) |
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93 fm.end() |
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94 |
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95 @command('perfaddremove') |
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96 def perfaddremove(ui, repo): |
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97 timer, fm = gettimer(ui) |
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98 try: |
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99 oldquiet = repo.ui.quiet |
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100 repo.ui.quiet = True |
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101 matcher = scmutil.match(repo[None]) |
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102 timer(lambda: scmutil.addremove(repo, matcher, "", dry_run=True)) |
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103 finally: |
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104 repo.ui.quiet = oldquiet |
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105 fm.end() |
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106 |
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107 def clearcaches(cl): |
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108 # behave somewhat consistently across internal API changes |
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109 if util.safehasattr(cl, 'clearcaches'): |
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110 cl.clearcaches() |
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111 elif util.safehasattr(cl, '_nodecache'): |
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112 from mercurial.node import nullid, nullrev |
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113 cl._nodecache = {nullid: nullrev} |
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114 cl._nodepos = None |
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115 |
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116 @command('perfheads') |
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117 def perfheads(ui, repo): |
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118 timer, fm = gettimer(ui) |
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119 cl = repo.changelog |
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120 def d(): |
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121 len(cl.headrevs()) |
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122 clearcaches(cl) |
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123 timer(d) |
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124 fm.end() |
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125 |
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126 @command('perftags') |
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127 def perftags(ui, repo): |
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128 import mercurial.changelog |
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129 import mercurial.manifest |
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130 timer, fm = gettimer(ui) |
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131 def t(): |
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132 repo.changelog = mercurial.changelog.changelog(repo.svfs) |
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133 repo.manifest = mercurial.manifest.manifest(repo.svfs) |
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134 repo._tags = None |
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135 return len(repo.tags()) |
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136 timer(t) |
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137 fm.end() |
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138 |
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139 @command('perfancestors') |
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140 def perfancestors(ui, repo): |
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141 timer, fm = gettimer(ui) |
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142 heads = repo.changelog.headrevs() |
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143 def d(): |
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144 for a in repo.changelog.ancestors(heads): |
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145 pass |
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146 timer(d) |
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147 fm.end() |
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148 |
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149 @command('perfancestorset') |
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150 def perfancestorset(ui, repo, revset): |
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151 timer, fm = gettimer(ui) |
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152 revs = repo.revs(revset) |
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153 heads = repo.changelog.headrevs() |
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154 def d(): |
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155 s = repo.changelog.ancestors(heads) |
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156 for rev in revs: |
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157 rev in s |
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158 timer(d) |
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159 fm.end() |
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160 |
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161 @command('perfdirs') |
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162 def perfdirs(ui, repo): |
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163 timer, fm = gettimer(ui) |
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164 dirstate = repo.dirstate |
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165 'a' in dirstate |
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166 def d(): |
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167 dirstate.dirs() |
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168 del dirstate._dirs |
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169 timer(d) |
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170 fm.end() |
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171 |
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172 @command('perfdirstate') |
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173 def perfdirstate(ui, repo): |
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174 timer, fm = gettimer(ui) |
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175 "a" in repo.dirstate |
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176 def d(): |
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177 repo.dirstate.invalidate() |
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178 "a" in repo.dirstate |
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179 timer(d) |
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180 fm.end() |
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181 |
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182 @command('perfdirstatedirs') |
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183 def perfdirstatedirs(ui, repo): |
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184 timer, fm = gettimer(ui) |
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185 "a" in repo.dirstate |
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186 def d(): |
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187 "a" in repo.dirstate._dirs |
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188 del repo.dirstate._dirs |
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189 timer(d) |
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190 fm.end() |
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191 |
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192 @command('perffilefoldmap') |
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193 def perffilefoldmap(ui, repo): |
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194 timer, fm = gettimer(ui) |
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195 dirstate = repo.dirstate |
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196 'a' in dirstate |
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197 def d(): |
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198 dirstate._filefoldmap.get('a') |
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199 del dirstate._filefoldmap |
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200 timer(d) |
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201 fm.end() |
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202 |
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203 @command('perfdirfoldmap') |
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204 def perfdirfoldmap(ui, repo): |
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205 timer, fm = gettimer(ui) |
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206 dirstate = repo.dirstate |
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207 'a' in dirstate |
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208 def d(): |
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209 dirstate._dirfoldmap.get('a') |
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210 del dirstate._dirfoldmap |
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211 del dirstate._dirs |
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212 timer(d) |
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213 fm.end() |
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214 |
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215 @command('perfdirstatewrite') |
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216 def perfdirstatewrite(ui, repo): |
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217 timer, fm = gettimer(ui) |
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218 ds = repo.dirstate |
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219 "a" in ds |
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220 def d(): |
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221 ds._dirty = True |
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222 ds.write() |
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223 timer(d) |
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224 fm.end() |
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225 |
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226 @command('perfmergecalculate', |
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227 [('r', 'rev', '.', 'rev to merge against')]) |
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228 def perfmergecalculate(ui, repo, rev): |
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229 timer, fm = gettimer(ui) |
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230 wctx = repo[None] |
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231 rctx = scmutil.revsingle(repo, rev, rev) |
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232 ancestor = wctx.ancestor(rctx) |
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233 # we don't want working dir files to be stat'd in the benchmark, so prime |
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234 # that cache |
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235 wctx.dirty() |
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236 def d(): |
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237 # acceptremote is True because we don't want prompts in the middle of |
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238 # our benchmark |
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239 merge.calculateupdates(repo, wctx, rctx, ancestor, False, False, False, |
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240 acceptremote=True) |
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241 timer(d) |
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242 fm.end() |
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243 |
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244 @command('perfpathcopies', [], "REV REV") |
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245 def perfpathcopies(ui, repo, rev1, rev2): |
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246 timer, fm = gettimer(ui) |
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247 ctx1 = scmutil.revsingle(repo, rev1, rev1) |
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248 ctx2 = scmutil.revsingle(repo, rev2, rev2) |
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249 def d(): |
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250 copies.pathcopies(ctx1, ctx2) |
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251 timer(d) |
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252 fm.end() |
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253 |
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254 @command('perfmanifest', [], 'REV') |
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255 def perfmanifest(ui, repo, rev): |
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256 timer, fm = gettimer(ui) |
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257 ctx = scmutil.revsingle(repo, rev, rev) |
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258 t = ctx.manifestnode() |
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259 def d(): |
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260 repo.manifest._mancache.clear() |
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261 repo.manifest._cache = None |
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262 repo.manifest.read(t) |
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263 timer(d) |
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264 fm.end() |
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265 |
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266 @command('perfchangeset') |
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267 def perfchangeset(ui, repo, rev): |
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268 timer, fm = gettimer(ui) |
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269 n = repo[rev].node() |
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270 def d(): |
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271 repo.changelog.read(n) |
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272 #repo.changelog._cache = None |
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273 timer(d) |
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274 fm.end() |
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275 |
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276 @command('perfindex') |
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277 def perfindex(ui, repo): |
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278 import mercurial.revlog |
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279 timer, fm = gettimer(ui) |
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280 mercurial.revlog._prereadsize = 2**24 # disable lazy parser in old hg |
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281 n = repo["tip"].node() |
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282 def d(): |
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283 cl = mercurial.revlog.revlog(repo.svfs, "00changelog.i") |
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284 cl.rev(n) |
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285 timer(d) |
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286 fm.end() |
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287 |
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288 @command('perfstartup') |
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289 def perfstartup(ui, repo): |
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290 timer, fm = gettimer(ui) |
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291 cmd = sys.argv[0] |
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292 def d(): |
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293 os.system("HGRCPATH= %s version -q > /dev/null" % cmd) |
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294 timer(d) |
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295 fm.end() |
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296 |
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297 @command('perfparents') |
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298 def perfparents(ui, repo): |
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299 timer, fm = gettimer(ui) |
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300 nl = [repo.changelog.node(i) for i in xrange(1000)] |
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301 def d(): |
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302 for n in nl: |
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303 repo.changelog.parents(n) |
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304 timer(d) |
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305 fm.end() |
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306 |
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307 @command('perfctxfiles') |
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308 def perfparents(ui, repo, x): |
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309 x = int(x) |
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310 timer, fm = gettimer(ui) |
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311 def d(): |
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312 len(repo[x].files()) |
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313 timer(d) |
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314 fm.end() |
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315 |
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316 @command('perfrawfiles') |
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317 def perfparents(ui, repo, x): |
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318 x = int(x) |
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319 timer, fm = gettimer(ui) |
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320 cl = repo.changelog |
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321 def d(): |
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322 len(cl.read(x)[3]) |
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323 timer(d) |
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324 fm.end() |
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325 |
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326 @command('perflookup') |
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327 def perflookup(ui, repo, rev): |
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328 timer, fm = gettimer(ui) |
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329 timer(lambda: len(repo.lookup(rev))) |
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330 fm.end() |
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331 |
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332 @command('perfrevrange') |
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333 def perfrevrange(ui, repo, *specs): |
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334 timer, fm = gettimer(ui) |
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335 revrange = scmutil.revrange |
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336 timer(lambda: len(revrange(repo, specs))) |
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337 fm.end() |
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338 |
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339 @command('perfnodelookup') |
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341 timer, fm = gettimer(ui) |
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344 n = repo[rev].node() | |
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345 cl = mercurial.revlog.revlog(repo.svfs, "00changelog.i") |
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346 def d(): |
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347 cl.rev(n) |
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348 clearcaches(cl) |
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349 timer(d) |
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350 fm.end() |
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351 |
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352 @command('perflog', |
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353 [('', 'rename', False, 'ask log to follow renames')]) |
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354 def perflog(ui, repo, **opts): |
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355 timer, fm = gettimer(ui) |
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356 ui.pushbuffer() |
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357 timer(lambda: commands.log(ui, repo, rev=[], date='', user='', |
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358 copies=opts.get('rename'))) |
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359 ui.popbuffer() |
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360 fm.end() |
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361 |
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362 @command('perfmoonwalk') |
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363 def perfmoonwalk(ui, repo): |
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364 """benchmark walking the changelog backwards |
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365 |
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366 This also loads the changelog data for each revision in the changelog. |
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367 """ |
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368 timer, fm = gettimer(ui) |
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369 def moonwalk(): |
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370 for i in xrange(len(repo), -1, -1): |
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371 ctx = repo[i] |
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372 ctx.branch() # read changelog data (in addition to the index) |
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373 timer(moonwalk) |
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374 fm.end() |
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375 |
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376 @command('perftemplating') |
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377 def perftemplating(ui, repo): |
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378 timer, fm = gettimer(ui) |
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379 ui.pushbuffer() |
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380 timer(lambda: commands.log(ui, repo, rev=[], date='', user='', |
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381 template='{date|shortdate} [{rev}:{node|short}]' |
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382 ' {author|person}: {desc|firstline}\n')) |
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383 ui.popbuffer() |
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384 fm.end() |
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385 |
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386 @command('perfcca') |
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387 def perfcca(ui, repo): |
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388 timer, fm = gettimer(ui) |
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389 timer(lambda: scmutil.casecollisionauditor(ui, False, repo.dirstate)) |
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390 fm.end() |
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391 |
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392 @command('perffncacheload') |
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393 def perffncacheload(ui, repo): |
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394 timer, fm = gettimer(ui) |
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395 s = repo.store |
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396 def d(): |
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397 s.fncache._load() |
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398 timer(d) |
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399 fm.end() |
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400 |
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401 @command('perffncachewrite') |
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402 def perffncachewrite(ui, repo): |
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403 timer, fm = gettimer(ui) |
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404 s = repo.store |
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405 s.fncache._load() |
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406 def d(): |
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407 s.fncache._dirty = True |
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408 s.fncache.write() |
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409 timer(d) |
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410 fm.end() |
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411 |
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412 @command('perffncacheencode') |
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413 def perffncacheencode(ui, repo): |
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414 timer, fm = gettimer(ui) |
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415 s = repo.store |
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416 s.fncache._load() |
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417 def d(): |
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418 for p in s.fncache.entries: |
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419 s.encode(p) |
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420 timer(d) |
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421 fm.end() |
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422 |
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423 @command('perfdiffwd') |
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424 def perfdiffwd(ui, repo): |
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425 """Profile diff of working directory changes""" |
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426 timer, fm = gettimer(ui) |
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427 options = { |
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428 'w': 'ignore_all_space', |
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429 'b': 'ignore_space_change', |
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430 'B': 'ignore_blank_lines', |
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431 } |
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432 |
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433 for diffopt in ('', 'w', 'b', 'B', 'wB'): |
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434 opts = dict((options[c], '1') for c in diffopt) |
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435 def d(): |
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436 ui.pushbuffer() |
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437 commands.diff(ui, repo, **opts) |
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438 ui.popbuffer() |
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439 title = 'diffopts: %s' % (diffopt and ('-' + diffopt) or 'none') |
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440 timer(d, title) |
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441 fm.end() |
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442 |
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443 @command('perfrevlog', |
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444 [('d', 'dist', 100, 'distance between the revisions')], |
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445 "[INDEXFILE]") |
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446 def perfrevlog(ui, repo, file_, **opts): |
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447 timer, fm = gettimer(ui) |
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448 from mercurial import revlog |
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449 dist = opts['dist'] |
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450 def d(): |
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451 r = revlog.revlog(lambda fn: open(fn, 'rb'), file_) |
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452 for x in xrange(0, len(r), dist): |
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453 r.revision(r.node(x)) |
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454 |
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455 timer(d) |
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456 fm.end() |
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457 |
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458 @command('perfrevset', |
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459 [('C', 'clear', False, 'clear volatile cache between each call.')], |
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460 "REVSET") |
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461 def perfrevset(ui, repo, expr, clear=False): |
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462 """benchmark the execution time of a revset |
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463 |
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464 Use the --clean option if need to evaluate the impact of build volatile |
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465 revisions set cache on the revset execution. Volatile cache hold filtered |
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466 and obsolete related cache.""" |
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467 timer, fm = gettimer(ui) |
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468 def d(): |
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469 if clear: |
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470 repo.invalidatevolatilesets() |
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471 for r in repo.revs(expr): pass |
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472 timer(d) |
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473 fm.end() |
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474 |
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475 @command('perfvolatilesets') |
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476 def perfvolatilesets(ui, repo, *names): |
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477 """benchmark the computation of various volatile set |
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478 |
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479 Volatile set computes element related to filtering and obsolescence.""" |
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480 timer, fm = gettimer(ui) |
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481 repo = repo.unfiltered() |
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482 |
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483 def getobs(name): |
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484 def d(): |
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485 repo.invalidatevolatilesets() |
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486 obsolete.getrevs(repo, name) |
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487 return d |
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488 |
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489 allobs = sorted(obsolete.cachefuncs) |
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490 if names: |
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491 allobs = [n for n in allobs if n in names] |
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492 |
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493 for name in allobs: |
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494 timer(getobs(name), title=name) |
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495 |
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496 def getfiltered(name): |
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497 def d(): |
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498 repo.invalidatevolatilesets() |
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499 repoview.filterrevs(repo, name) |
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500 return d |
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501 |
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502 allfilter = sorted(repoview.filtertable) |
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503 if names: |
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504 allfilter = [n for n in allfilter if n in names] |
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505 |
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506 for name in allfilter: |
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507 timer(getfiltered(name), title=name) |
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508 fm.end() |
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509 |
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510 @command('perfbranchmap', |
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511 [('f', 'full', False, |
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512 'Includes build time of subset'), |
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513 ]) |
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514 def perfbranchmap(ui, repo, full=False): |
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515 """benchmark the update of a branchmap |
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516 |
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517 This benchmarks the full repo.branchmap() call with read and write disabled |
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518 """ |
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519 timer, fm = gettimer(ui) |
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520 def getbranchmap(filtername): |
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521 """generate a benchmark function for the filtername""" |
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522 if filtername is None: |
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523 view = repo |
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524 else: |
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525 view = repo.filtered(filtername) |
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526 def d(): |
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527 if full: |
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528 view._branchcaches.clear() |
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529 else: |
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530 view._branchcaches.pop(filtername, None) |
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531 view.branchmap() |
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532 return d |
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533 # add filter in smaller subset to bigger subset |
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534 possiblefilters = set(repoview.filtertable) |
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535 allfilters = [] |
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536 while possiblefilters: |
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537 for name in possiblefilters: |
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538 subset = branchmap.subsettable.get(name) |
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539 if subset not in possiblefilters: |
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540 break |
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541 else: |
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542 assert False, 'subset cycle %s!' % possiblefilters |
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543 allfilters.append(name) |
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544 possiblefilters.remove(name) |
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545 |
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546 # warm the cache |
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547 if not full: |
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548 for name in allfilters: |
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549 repo.filtered(name).branchmap() |
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550 # add unfiltered |
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551 allfilters.append(None) |
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552 oldread = branchmap.read |
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553 oldwrite = branchmap.branchcache.write |
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554 try: |
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555 branchmap.read = lambda repo: None |
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556 branchmap.write = lambda repo: None |
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557 for name in allfilters: |
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558 timer(getbranchmap(name), title=str(name)) |
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559 finally: |
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560 branchmap.read = oldread |
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561 branchmap.branchcache.write = oldwrite |
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562 fm.end() |
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563 |
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564 @command('perfloadmarkers') |
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565 def perfloadmarkers(ui, repo): |
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566 """benchmark the time to parse the on-disk markers for a repo |
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567 |
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568 Result is the number of markers in the repo.""" |
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569 timer, fm = gettimer(ui) |
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570 timer(lambda: len(obsolete.obsstore(repo.svfs))) |
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571 fm.end() |