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# Copyright (C) 2006 by Canonical Ltd
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
"""Benchmark test suite for bzr."""
import bzrlib
from bzrlib.bzrdir import BzrDir
from bzrlib.tests import TestLoader
from bzrlib.tests.blackbox import ExternalBase
class Benchmark(ExternalBase):
def make_kernel_like_tree(self, url=None):
"""Setup a temporary tree roughly like a kernel tree.
:param url: Creat the kernel like tree as a lightweight checkout
of a new branch created at url.
"""
# a kernel tree has ~10000 and 500 directory, with most files around
# 3-4 levels deep.
# we simulate this by three levels of dirs named 0-7, givin 512 dirs,
# and 20 files each.
if url is not None:
b = bzrlib.bzrdir.BzrDir.create_branch_convenience(url)
d = bzrlib.bzrdir.BzrDir.create('.')
bzrlib.branch.BranchReferenceFormat().initialize(d, b)
d.create_workingtree()
else:
self.run_bzr('init')
files = []
for outer in range(8):
files.append("%s/" % outer)
for middle in range(8):
files.append("%s/%s/" % (outer, middle))
for inner in range(8):
prefix = "%s/%s/%s/" % (outer, middle, inner)
files.append(prefix)
files.extend([prefix + str(foo) for foo in range(20)])
self.build_tree(files)
def make_many_commit_tree(self, directory_name='.'):
"""Create a tree with an egregious number of commits.
No files change are included.
"""
tree = BzrDir.create_standalone_workingtree(directory_name)
tree.lock_write()
tree.branch.lock_write()
tree.branch.repository.lock_write()
try:
for i in xrange(1000):
tree.commit('no-changes commit %d' % i)
finally:
try:
try:
tree.branch.repository.unlock()
finally:
tree.branch.unlock()
finally:
tree.unlock()
return tree
def test_suite():
"""Build and return a TestSuite which contains benchmark tests only."""
testmod_names = [ \
'bzrlib.benchmarks.bench_add',
'bzrlib.benchmarks.bench_bench',
'bzrlib.benchmarks.bench_checkout',
'bzrlib.benchmarks.bench_commit',
'bzrlib.benchmarks.bench_inventory',
'bzrlib.benchmarks.bench_log',
'bzrlib.benchmarks.bench_osutils',
'bzrlib.benchmarks.bench_rocks',
'bzrlib.benchmarks.bench_status',
'bzrlib.benchmarks.bench_transform',
'bzrlib.benchmarks.bench_workingtree',
]
return TestLoader().loadTestsFromModuleNames(testmod_names)
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