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annotate contrib/perf.py @ 16266:77d56a5e74a5

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perf: add a changeset test
author Matt Mackall <mpm@selenic.com>
date Fri, 16 Mar 2012 19:58:47 -0500
parents bf7a6c3b2a4a
children e0c1b3ef7c36
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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, 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:
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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:
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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, *pats):
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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, False))))
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46 timer(lambda: sum(map(len, repo.status())))
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47
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48 def perfheads(ui, repo):
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49 timer(lambda: len(repo.changelog.headrevs()))
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50
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51 def perftags(ui, repo):
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52 import mercurial.changelog, mercurial.manifest
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53 def t():
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54 repo.changelog = mercurial.changelog.changelog(repo.sopener)
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55 repo.manifest = mercurial.manifest.manifest(repo.sopener)
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56 repo._tags = None
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57 return len(repo.tags())
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58 timer(t)
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59
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60 def perfdirstate(ui, repo):
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61 "a" in repo.dirstate
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62 def d():
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63 repo.dirstate.invalidate()
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64 "a" in repo.dirstate
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65 timer(d)
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66
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67 def perfdirstatedirs(ui, repo):
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68 "a" in repo.dirstate
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69 def d():
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70 "a" in repo.dirstate._dirs
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71 del repo.dirstate._dirs
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72 timer(d)
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73
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74 def perfmanifest(ui, repo):
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75 def d():
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76 t = repo.manifest.tip()
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77 m = repo.manifest.read(t)
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78 repo.manifest.mapcache = None
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79 repo.manifest._cache = None
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80 timer(d)
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81
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82 def perfchangeset(ui, repo, rev):
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83 n = repo[rev].node()
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84 def d():
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85 c = repo.changelog.read(n)
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86 #repo.changelog._cache = None
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87 timer(d)
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88
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89 def perfindex(ui, repo):
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90 import mercurial.revlog
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91 mercurial.revlog._prereadsize = 2**24 # disable lazy parser in old hg
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92 n = repo["tip"].node()
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93 def d():
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94 cl = mercurial.revlog.revlog(repo.sopener, "00changelog.i")
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95 cl.rev(n)
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96 timer(d)
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97
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98 def perfstartup(ui, repo):
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99 cmd = sys.argv[0]
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100 def d():
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101 os.system("HGRCPATH= %s version -q > /dev/null" % cmd)
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102 timer(d)
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103
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104 def perfparents(ui, repo):
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105 nl = [repo.changelog.node(i) for i in xrange(1000)]
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106 def d():
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107 for n in nl:
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108 repo.changelog.parents(n)
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109 timer(d)
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110
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111 def perflookup(ui, repo, rev):
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112 timer(lambda: len(repo.lookup(rev)))
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113
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114 def perflog(ui, repo, **opts):
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115 ui.pushbuffer()
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116 timer(lambda: commands.log(ui, repo, rev=[], date='', user='',
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117 copies=opts.get('rename')))
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118 ui.popbuffer()
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119
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120 def perftemplating(ui, repo):
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121 ui.pushbuffer()
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122 timer(lambda: commands.log(ui, repo, rev=[], date='', user='',
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123 template='{date|shortdate} [{rev}:{node|short}]'
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124 ' {author|person}: {desc|firstline}\n'))
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125 ui.popbuffer()
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126
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127 def perfdiffwd(ui, repo):
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128 """Profile diff of working directory changes"""
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129 options = {
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130 'w': 'ignore_all_space',
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131 'b': 'ignore_space_change',
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132 'B': 'ignore_blank_lines',
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133 }
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134
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135 for diffopt in ('', 'w', 'b', 'B', 'wB'):
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136 opts = dict((options[c], '1') for c in diffopt)
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137 def d():
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138 ui.pushbuffer()
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139 commands.diff(ui, repo, **opts)
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140 ui.popbuffer()
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141 title = 'diffopts: %s' % (diffopt and ('-' + diffopt) or 'none')
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142 timer(d, title)
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143
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144 def perfrevlog(ui, repo, file_, **opts):
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145 from mercurial import revlog
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146 dist = opts['dist']
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147 def d():
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148 r = revlog.revlog(lambda fn: open(fn, 'rb'), file_)
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149 for x in xrange(0, len(r), dist):
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150 r.revision(r.node(x))
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151
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152 timer(d)
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153
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154 cmdtable = {
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155 'perflookup': (perflookup, []),
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156 'perfparents': (perfparents, []),
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157 'perfstartup': (perfstartup, []),
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158 'perfstatus': (perfstatus, []),
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159 'perfwalk': (perfwalk, []),
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160 'perfmanifest': (perfmanifest, []),
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161 'perfchangeset': (perfchangeset, []),
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162 'perfindex': (perfindex, []),
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163 'perfheads': (perfheads, []),
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164 'perftags': (perftags, []),
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165 'perfdirstate': (perfdirstate, []),
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166 'perfdirstatedirs': (perfdirstate, []),
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167 'perflog': (perflog,
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168 [('', 'rename', False, 'ask log to follow renames')]),
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169 'perftemplating': (perftemplating, []),
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170 'perfdiffwd': (perfdiffwd, []),
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171 'perfrevlog': (perfrevlog,
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172 [('d', 'dist', 100, 'distance between the revisions')],
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173 "[INDEXFILE]"),
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174 }