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annotate contrib/perf.py @ 18080:486bfb200b3f

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perf: add command to test performance of membership in ancestor set The new command, perfancestorset, takes an argument denoting which revset to test the membership of. Currently this runs through all the ancestors and converts them into a set. The primary purpose of having this is to compare this approach, currently used in several places, against the upcoming lazy approach.
author Siddharth Agarwal <sid0@fb.com>
date Fri, 14 Dec 2012 10:23:18 -0800
parents 1471f5e83686
children f7f8159caad3
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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, match, commands
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5 import time, os, sys
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6
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7 def timer(func, title=None):
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8 results = []
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9 begin = time.time()
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10 count = 0
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11 while True:
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12 ostart = os.times()
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13 cstart = time.time()
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14 r = func()
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15 cstop = time.time()
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16 ostop = os.times()
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17 count += 1
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18 a, b = ostart, ostop
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19 results.append((cstop - cstart, b[0] - a[0], b[1]-a[1]))
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20 if cstop - begin > 3 and count >= 100:
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21 break
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22 if cstop - begin > 10 and count >= 3:
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23 break
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24 if title:
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25 sys.stderr.write("! %s\n" % title)
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26 if r:
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27 sys.stderr.write("! result: %s\n" % r)
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28 m = min(results)
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29 sys.stderr.write("! wall %f comb %f user %f sys %f (best of %d)\n"
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30 % (m[0], m[1] + m[2], m[1], m[2], count))
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31
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32 def perfwalk(ui, repo, *pats):
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33 try:
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34 m = scmutil.match(repo[None], pats, {})
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35 timer(lambda: len(list(repo.dirstate.walk(m, [], True, False))))
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36 except Exception:
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37 try:
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38 m = scmutil.match(repo[None], pats, {})
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39 timer(lambda: len([b for a, b, c in repo.dirstate.statwalk([], m)]))
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40 except Exception:
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41 timer(lambda: len(list(cmdutil.walk(repo, pats, {}))))
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42
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43 def perfstatus(ui, repo, **opts):
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44 #m = match.always(repo.root, repo.getcwd())
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45 #timer(lambda: sum(map(len, repo.dirstate.status(m, [], False, False,
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46 # False))))
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47 timer(lambda: sum(map(len, repo.status(**opts))))
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48
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49 def clearcaches(cl):
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50 # behave somewhat consistently across internal API changes
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51 if util.safehasattr(cl, 'clearcaches'):
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52 cl.clearcaches()
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53 elif util.safehasattr(cl, '_nodecache'):
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54 from mercurial.node import nullid, nullrev
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55 cl._nodecache = {nullid: nullrev}
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56 cl._nodepos = None
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57
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58 def perfheads(ui, repo):
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59 cl = repo.changelog
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60 def d():
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61 len(cl.headrevs())
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62 clearcaches(cl)
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63 timer(d)
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64
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65 def perftags(ui, repo):
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66 import mercurial.changelog, mercurial.manifest
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67 def t():
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68 repo.changelog = mercurial.changelog.changelog(repo.sopener)
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69 repo.manifest = mercurial.manifest.manifest(repo.sopener)
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70 repo._tags = None
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71 return len(repo.tags())
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72 timer(t)
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73
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74 def perfancestors(ui, repo):
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75 heads = repo.changelog.headrevs()
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76 def d():
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77 for a in repo.changelog.ancestors(heads):
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78 pass
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79 timer(d)
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80
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81 def perfancestorset(ui, repo, revset):
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82 revs = repo.revs(revset)
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83 heads = repo.changelog.headrevs()
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84 def d():
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85 s = set(repo.changelog.ancestors(heads))
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86 for rev in revs:
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87 rev in s
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88 timer(d)
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89
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90 def perfdirstate(ui, repo):
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91 "a" in repo.dirstate
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92 def d():
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93 repo.dirstate.invalidate()
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94 "a" in repo.dirstate
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95 timer(d)
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96
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97 def perfdirstatedirs(ui, repo):
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98 "a" in repo.dirstate
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99 def d():
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100 "a" in repo.dirstate._dirs
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101 del repo.dirstate._dirs
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102 timer(d)
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103
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104 def perfdirstatewrite(ui, repo):
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105 ds = repo.dirstate
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106 "a" in ds
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107 def d():
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108 ds._dirty = True
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109 ds.write()
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110 timer(d)
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111
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112 def perfmanifest(ui, repo):
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113 def d():
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114 t = repo.manifest.tip()
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115 m = repo.manifest.read(t)
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116 repo.manifest.mapcache = None
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117 repo.manifest._cache = None
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118 timer(d)
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119
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120 def perfchangeset(ui, repo, rev):
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121 n = repo[rev].node()
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122 def d():
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123 c = repo.changelog.read(n)
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124 #repo.changelog._cache = None
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125 timer(d)
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126
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127 def perfindex(ui, repo):
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128 import mercurial.revlog
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129 mercurial.revlog._prereadsize = 2**24 # disable lazy parser in old hg
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130 n = repo["tip"].node()
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131 def d():
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132 cl = mercurial.revlog.revlog(repo.sopener, "00changelog.i")
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133 cl.rev(n)
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134 timer(d)
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135
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136 def perfstartup(ui, repo):
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137 cmd = sys.argv[0]
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138 def d():
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139 os.system("HGRCPATH= %s version -q > /dev/null" % cmd)
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140 timer(d)
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141
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142 def perfparents(ui, repo):
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143 nl = [repo.changelog.node(i) for i in xrange(1000)]
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144 def d():
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145 for n in nl:
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146 repo.changelog.parents(n)
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147 timer(d)
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148
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149 def perflookup(ui, repo, rev):
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150 timer(lambda: len(repo.lookup(rev)))
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151
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152 def perfrevrange(ui, repo, *specs):
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153 revrange = scmutil.revrange
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154 timer(lambda: len(revrange(repo, specs)))
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155
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156 def perfnodelookup(ui, repo, rev):
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157 import mercurial.revlog
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158 mercurial.revlog._prereadsize = 2**24 # disable lazy parser in old hg
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159 n = repo[rev].node()
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160 def d():
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161 cl = mercurial.revlog.revlog(repo.sopener, "00changelog.i")
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162 cl.rev(n)
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163 timer(d)
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164
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165 def perfnodelookup(ui, repo, rev):
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166 import mercurial.revlog
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167 mercurial.revlog._prereadsize = 2**24 # disable lazy parser in old hg
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168 n = repo[rev].node()
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169 cl = mercurial.revlog.revlog(repo.sopener, "00changelog.i")
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170 def d():
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171 cl.rev(n)
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172 clearcaches(cl)
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173 timer(d)
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174
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175 def perflog(ui, repo, **opts):
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176 ui.pushbuffer()
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177 timer(lambda: commands.log(ui, repo, rev=[], date='', user='',
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178 copies=opts.get('rename')))
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179 ui.popbuffer()
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180
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181 def perftemplating(ui, repo):
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182 ui.pushbuffer()
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183 timer(lambda: commands.log(ui, repo, rev=[], date='', user='',
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184 template='{date|shortdate} [{rev}:{node|short}]'
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185 ' {author|person}: {desc|firstline}\n'))
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186 ui.popbuffer()
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187
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188 def perfcca(ui, repo):
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189 timer(lambda: scmutil.casecollisionauditor(ui, False, repo.dirstate))
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190
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191 def perffncacheload(ui, repo):
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192 s = repo.store
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193 def d():
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194 s.fncache._load()
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195 timer(d)
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196
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197 def perffncachewrite(ui, repo):
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198 s = repo.store
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199 s.fncache._load()
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200 def d():
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201 s.fncache._dirty = True
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202 s.fncache.write()
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203 timer(d)
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204
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diff changeset
205 def perffncacheencode(ui, repo):
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206 s = repo.store
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diff changeset
207 s.fncache._load()
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208 def d():
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209 for p in s.fncache.entries:
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210 s.encode(p)
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211 timer(d)
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212
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213 def perfdiffwd(ui, repo):
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214 """Profile diff of working directory changes"""
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215 options = {
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216 'w': 'ignore_all_space',
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217 'b': 'ignore_space_change',
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218 'B': 'ignore_blank_lines',
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219 }
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220
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221 for diffopt in ('', 'w', 'b', 'B', 'wB'):
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222 opts = dict((options[c], '1') for c in diffopt)
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223 def d():
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224 ui.pushbuffer()
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diff changeset
225 commands.diff(ui, repo, **opts)
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226 ui.popbuffer()
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227 title = 'diffopts: %s' % (diffopt and ('-' + diffopt) or 'none')
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diff changeset
228 timer(d, title)
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229
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230 def perfrevlog(ui, repo, file_, **opts):
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diff changeset
231 from mercurial import revlog
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diff changeset
232 dist = opts['dist']
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diff changeset
233 def d():
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diff changeset
234 r = revlog.revlog(lambda fn: open(fn, 'rb'), file_)
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diff changeset
235 for x in xrange(0, len(r), dist):
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diff changeset
236 r.revision(r.node(x))
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diff changeset
237
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diff changeset
238 timer(d)
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239
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Siddharth Agarwal <sid0@fb.com>
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diff changeset
240 def perfrevset(ui, repo, expr):
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diff changeset
241 def d():
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diff changeset
242 repo.revs(expr)
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diff changeset
243 timer(d)
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244
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245 cmdtable = {
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246 'perfcca': (perfcca, []),
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247 'perffncacheload': (perffncacheload, []),
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diff changeset
248 'perffncachewrite': (perffncachewrite, []),
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diff changeset
249 'perffncacheencode': (perffncacheencode, []),
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250 'perflookup': (perflookup, []),
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diff changeset
251 'perfrevrange': (perfrevrange, []),
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diff changeset
252 'perfnodelookup': (perfnodelookup, []),
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diff changeset
253 'perfparents': (perfparents, []),
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diff changeset
254 'perfstartup': (perfstartup, []),
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parents: 17780
diff changeset
255 'perfstatus': (perfstatus,
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parents: 17780
diff changeset
256 [('u', 'unknown', False,
00ac420f24ee perf: add option to perfstatus to get the status of unknown files
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parents: 17780
diff changeset
257 'ask status to look for unknown files')]),
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parents:
diff changeset
258 'perfwalk': (perfwalk, []),
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parents:
diff changeset
259 'perfmanifest': (perfmanifest, []),
16262
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parents: 16260
diff changeset
260 'perfchangeset': (perfchangeset, []),
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parents:
diff changeset
261 'perfindex': (perfindex, []),
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parents:
diff changeset
262 'perfheads': (perfheads, []),
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parents:
diff changeset
263 'perftags': (perftags, []),
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parents: 16788
diff changeset
264 'perfancestors': (perfancestors, []),
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486bfb200b3f perf: add command to test performance of membership in ancestor set
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parents: 18062
diff changeset
265 'perfancestorset': (perfancestorset, [], "REVSET"),
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parents:
diff changeset
266 'perfdirstate': (perfdirstate, []),
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parents:
diff changeset
267 'perfdirstatedirs': (perfdirstate, []),
16788
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parents: 16785
diff changeset
268 'perfdirstatewrite': (perfdirstatewrite, []),
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parents: 9826
diff changeset
269 'perflog': (perflog,
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diff changeset
270 [('', 'rename', False, 'ask log to follow renames')]),
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diff changeset
271 'perftemplating': (perftemplating, []),
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diff changeset
272 'perfdiffwd': (perfdiffwd, []),
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parents: 11694
diff changeset
273 'perfrevlog': (perfrevlog,
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parents: 11694
diff changeset
274 [('d', 'dist', 100, 'distance between the revisions')],
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parents: 11694
diff changeset
275 "[INDEXFILE]"),
18062
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diff changeset
276 'perfrevset': (perfrevset, [], "REVSET")
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parents:
diff changeset
277 }