Mercurial > public > mercurial-scm > hg-stable
annotate contrib/revsetbenchmarks.py @ 21548:651d7548a744
revsetbenchmark: automatically finds the perf extension
Before this changeset, you had to stand in the root of the mercurial repo to run
the `revsetbenchmark.py` script. Otherwise, the perf extension would not be
found a `./contrib/perf.py` and the script would crash in panic.
We now figure out the contrib directory from the location of this script. This
makes it possible to run the script from other location that the mercurial repo
root (but you still need to be in the core mercurial repository)
author | Pierre-Yves David <pierre-yves.david@fb.com> |
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date | Tue, 29 Apr 2014 13:18:22 -0700 |
parents | 2d93b74335a2 |
children | ea3d75ebea6d |
rev | line source |
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1 #!/usr/bin/env python |
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2 |
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3 # Measure the performance of a list of revsets against multiple revisions |
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4 # defined by parameter. Checkout one by one and run perfrevset with every |
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5 # revset in the list to benchmark its performance. |
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6 # |
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7 # - First argument is a revset of mercurial own repo to runs against. |
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8 # - Second argument is the file from which the revset array will be taken |
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9 # If second argument is omitted read it from standard input |
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10 # |
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11 # You should run this from the root of your mercurial repository. |
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12 # |
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13 # This script also does one run of the current version of mercurial installed |
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14 # to compare performance. |
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15 |
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16 import sys |
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17 import os |
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18 from subprocess import check_call, Popen, CalledProcessError, STDOUT, PIPE |
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19 # cannot use argparse, python 2.7 only |
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20 from optparse import OptionParser |
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21 |
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22 |
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23 |
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24 def check_output(*args, **kwargs): |
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25 kwargs.setdefault('stderr', PIPE) |
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26 kwargs.setdefault('stdout', PIPE) |
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27 proc = Popen(*args, **kwargs) |
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28 output, error = proc.communicate() |
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29 if proc.returncode != 0: |
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30 raise CalledProcessError(proc.returncode, ' '.join(args[0])) |
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31 return output |
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32 |
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33 def update(rev): |
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34 """update the repo to a revision""" |
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35 try: |
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36 check_call(['hg', 'update', '--quiet', '--check', str(rev)]) |
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37 except CalledProcessError, exc: |
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38 print >> sys.stderr, 'update to revision %s failed, aborting' % rev |
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39 sys.exit(exc.returncode) |
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40 |
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41 def perf(revset): |
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42 """run benchmark for this very revset""" |
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43 try: |
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44 output = check_output(['./hg', |
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45 '--config', |
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46 'extensions.perf=' |
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47 + os.path.join(contribdir, 'perf.py'), |
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48 'perfrevset', |
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49 revset], |
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50 stderr=STDOUT) |
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51 output = output.lstrip('!') # remove useless ! in this context |
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52 return output.strip() |
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53 except CalledProcessError, exc: |
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54 print >> sys.stderr, 'abort: cannot run revset benchmark' |
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55 sys.exit(exc.returncode) |
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56 |
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57 def printrevision(rev): |
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58 """print data about a revision""" |
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59 sys.stdout.write("Revision: ") |
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60 sys.stdout.flush() |
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61 check_call(['hg', 'log', '--rev', str(rev), '--template', |
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62 '{desc|firstline}\n']) |
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63 |
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64 def getrevs(spec): |
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65 """get the list of rev matched by a revset""" |
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66 try: |
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67 out = check_output(['hg', 'log', '--template={rev}\n', '--rev', spec]) |
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68 except CalledProcessError, exc: |
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69 print >> sys.stderr, "abort, can't get revision from %s" % spec |
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70 sys.exit(exc.returncode) |
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71 return [r for r in out.split() if r] |
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72 |
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73 |
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74 parser = OptionParser(usage="usage: %prog [options] <revs>") |
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75 parser.add_option("-f", "--file", |
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76 help="read revset from FILE", metavar="FILE") |
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77 |
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78 (options, args) = parser.parse_args() |
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79 |
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80 if len(sys.argv) < 2: |
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81 parser.print_help() |
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82 sys.exit(255) |
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83 |
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84 # the directory where both this script and the perf.py extension live. |
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85 contribdir = os.path.dirname(__file__) |
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86 |
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87 target_rev = args[0] |
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88 |
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89 revsetsfile = sys.stdin |
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90 if options.file: |
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91 revsetsfile = open(options.file) |
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92 |
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93 revsets = [l.strip() for l in revsetsfile] |
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94 |
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95 print "Revsets to benchmark" |
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96 print "----------------------------" |
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97 |
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98 for idx, rset in enumerate(revsets): |
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99 print "%i) %s" % (idx, rset) |
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100 |
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101 print "----------------------------" |
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102 print |
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103 |
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104 |
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105 revs = getrevs(target_rev) |
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106 |
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107 results = [] |
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108 for r in revs: |
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109 print "----------------------------" |
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110 printrevision(r) |
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111 print "----------------------------" |
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112 update(r) |
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113 res = [] |
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114 results.append(res) |
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115 for idx, rset in enumerate(revsets): |
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116 data = perf(rset) |
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117 res.append(data) |
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118 print "%i)" % idx, data |
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119 sys.stdout.flush() |
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120 print "----------------------------" |
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121 |
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122 |
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123 print """ |
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124 |
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125 Result by revset |
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126 ================ |
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127 """ |
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128 |
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129 print 'Revision:', revs |
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130 for idx, rev in enumerate(revs): |
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131 sys.stdout.write('%i) ' % idx) |
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132 sys.stdout.flush() |
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133 printrevision(rev) |
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134 |
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135 print |
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136 print |
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137 |
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138 for ridx, rset in enumerate(revsets): |
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139 |
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140 print "revset #%i: %s" % (ridx, rset) |
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141 for idx, data in enumerate(results): |
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142 print '%i) %s' % (idx, data[ridx]) |
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143 print |