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Viewing changes to bzrlib/benchmarks/__init__.py

  • Committer: Robert Collins
  • Date: 2007-07-04 08:08:13 UTC
  • mfrom: (2572 +trunk)
  • mto: This revision was merged to the branch mainline in revision 2587.
  • Revision ID: robertc@robertcollins.net-20070704080813-wzebx0r88fvwj5rq
Merge bzr.dev.

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bzrlib/benchmarks/__init__.py
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# Copyright (C) 2006 by Canonical Ltd
 
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# Copyright (C) 2006 Canonical Ltd
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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class Benchmark(ExternalBase):
 
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    """A Test class which provides helpers for writing benchmark tests."""
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    def make_kernel_like_tree(self, url=None, root='.',
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                              link_working=False):
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        """Setup a temporary tree roughly like a kernel tree.
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        :param url: Creat the kernel like tree as a lightweight checkout
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        of a new branch created at url.
 
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            of a new branch created at url.
 
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        :param root: Path where the tree will be created.
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        :param link_working: instead of creating a new copy of all files
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            just hardlink the working tree. Tests must request this, because
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            they must break links if they want to change the files
 
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        :return: A newly created tree.
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        """
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        from bzrlib.benchmarks.tree_creator.kernel_like import (
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            KernelLikeTreeCreator,
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        creator = HeavilyMergedTreeCreator(self, link_bzr=hardlink)
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        return creator.create(root=directory_name)
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    def create_with_commits(self, num_files, num_commits, directory_name='.'):
 
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    def create_with_commits(self, num_files, num_commits, directory_name='.',
 
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                            hardlink=False):
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        """Create a tree with many files and many commits. Every commit changes
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        exactly one file.
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        :param num_files: number of files to be created
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        :param num_commits: number of commits in the newly created tree
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        """
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        files = ["%s/%s" % (directory_name, i) for i in range(num_files)]
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        for fn in files:
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            f = open(fn, "wb")
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            try:
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                f.write("some content\n")
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            finally:
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                f.close()
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        tree = bzrdir.BzrDir.create_standalone_workingtree(directory_name)
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        tree.add([str(i) for i in range(num_files)])
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        tree.lock_write()
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        try:
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            tree.commit('initial commit')
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            for i in range(num_commits):
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                fn = files[i % len(files)]
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                content = range(i) + [i, i, i, ""]
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                f = open(fn, "wb")
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                try:
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                    f.write("\n".join([str(i) for i in content]))
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                finally:
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                    f.close()
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                tree.commit("changing file %s" % fn)
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        finally:
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            tree.unlock()
 
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        from bzrlib.benchmarks.tree_creator.many_commit import (
 
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            ManyCommitTreeCreator,
 
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            )
 
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        creator = ManyCommitTreeCreator(self, link_bzr=hardlink,
 
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                                        num_files=num_files,
 
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                                        num_commits=num_commits)
 
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        tree = creator.create(root=directory_name)
 
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        files = ["%s/%s" % (directory_name, fn) for fn in creator.files]
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        return tree, files
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    def commit_some_revisions(self, tree, files, num_commits,
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        :param tree: The tree in which the changes happen.
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        :param files: The list of files where changes should occur.
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        :param num_commits: The number of commits
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        :param changes_per_commit: The number of files that are touched in 
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        each commit.
 
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        :param changes_per_commit: The number of files that are touched in
 
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            each commit.
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        """
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        for j in range(num_commits):
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            for i in range(changes_per_commit):
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    testmod_names = [ \
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                   'bzrlib.benchmarks.bench_add',
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                   'bzrlib.benchmarks.bench_bench',
 
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                   'bzrlib.benchmarks.bench_bundle',
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                   'bzrlib.benchmarks.bench_cache_utf8',
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                   'bzrlib.benchmarks.bench_checkout',
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                   'bzrlib.benchmarks.bench_commit',
 
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                   'bzrlib.benchmarks.bench_info',
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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_startup',
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                   'bzrlib.benchmarks.bench_status',
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                   'bzrlib.benchmarks.bench_transform',
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                   'bzrlib.benchmarks.bench_workingtree',