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Viewing changes to bzrlib/benchmarks/__init__.py

  • Committer: Robert Collins
  • Date: 2006-08-08 23:19:29 UTC
  • mfrom: (1884 +trunk)
  • mto: This revision was merged to the branch mainline in revision 1912.
  • Revision ID: robertc@robertcollins.net-20060808231929-4e3e298190214b3a
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bzrlib/benchmarks/__init__.py
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"""Benchmark test suite for bzr."""
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import bzrlib
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from bzrlib.tests import TestLoader
 
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from bzrlib import bzrdir, plugin
 
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from bzrlib.tests.TestUtil import TestLoader
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from bzrlib.tests.blackbox import ExternalBase
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class Benchmark(ExternalBase):
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    def make_kernel_like_tree(self, url=None):
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        # we simulate this by three levels of dirs named 0-7, givin 512 dirs,
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        # and 20 files each.
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        if url is not None:
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            b = bzrlib.bzrdir.BzrDir.create_branch_convenience(url)
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            d = bzrlib.bzrdir.BzrDir.create('.')
 
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            b = bzrdir.BzrDir.create_branch_convenience(url)
 
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            d = bzrdir.BzrDir.create('.')
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            bzrlib.branch.BranchReferenceFormat().initialize(d, b)
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            d.create_workingtree()
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        else:
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                    files.extend([prefix + str(foo) for foo in range(20)])
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        self.build_tree(files)
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    def make_many_commit_tree(self, directory_name='.'):
 
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        """Create a tree with many commits.
 
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        No files change are included.
 
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        """
 
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        tree = bzrdir.BzrDir.create_standalone_workingtree(directory_name)
 
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        tree.lock_write()
 
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        tree.branch.lock_write()
 
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        tree.branch.repository.lock_write()
 
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        try:
 
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            for i in xrange(1000):
 
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                tree.commit('no-changes commit %d' % i)
 
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        finally:
 
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            try:
 
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                try:
 
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                    tree.branch.repository.unlock()
 
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                finally:
 
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                    tree.branch.unlock()
 
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            finally:
 
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                tree.unlock()
 
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        return tree
 
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    def make_heavily_merged_tree(self, directory_name='.'):
 
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        """Create a tree in which almost every commit is a merge.
 
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        No files change are included.  This produces two trees, 
 
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        one of which is returned.  Except for the first commit, every
 
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        commit in its revision-history is a merge another commit in the other
 
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        tree.
 
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        """
 
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        tree = bzrdir.BzrDir.create_standalone_workingtree(directory_name)
 
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        tree.lock_write()
 
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        try:
 
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            tree2 = tree.bzrdir.sprout('tree2').open_workingtree()
 
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            tree2.lock_write()
 
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            try:
 
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                for i in xrange(250):
 
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                    revision_id = tree.commit('no-changes commit %d-a' % i)
 
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                    tree2.branch.fetch(tree.branch, revision_id)
 
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                    tree2.set_pending_merges([revision_id])
 
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                    revision_id = tree2.commit('no-changes commit %d-b' % i)
 
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                    tree.branch.fetch(tree2.branch, revision_id)
 
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                    tree.set_pending_merges([revision_id])
 
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                tree.set_pending_merges([])
 
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            finally:
 
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                tree.unlock()
 
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        finally:
 
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            tree2.unlock()
 
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        return tree
 
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def test_suite():
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    """Build and return a TestSuite which contains benchmark tests only."""
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                   'bzrlib.benchmarks.bench_bench',
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                   'bzrlib.benchmarks.bench_checkout',
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                   'bzrlib.benchmarks.bench_commit',
 
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                   'bzrlib.benchmarks.bench_inventory',
 
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                   'bzrlib.benchmarks.bench_log',
 
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                   'bzrlib.benchmarks.bench_osutils',
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                   'bzrlib.benchmarks.bench_rocks',
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                   'bzrlib.benchmarks.bench_osutils',
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                   'bzrlib.benchmarks.bench_status',
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                   'bzrlib.benchmarks.bench_transform',
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                   'bzrlib.benchmarks.bench_workingtree',
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                   ]
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    return TestLoader().loadTestsFromModuleNames(testmod_names)
 
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    suite = TestLoader().loadTestsFromModuleNames(testmod_names) 
 
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    # Load any benchmarks from plugins
 
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    for name, module in plugin.all_plugins().items():
 
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        if getattr(module, 'bench_suite', None) is not None:
 
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            suite.addTest(module.bench_suite())
 
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    return suite