1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
|
# Copyright (C) 2006 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
"""Tests for bzr bundle performance."""
from cStringIO import StringIO
import os
import shutil
from bzrlib import bzrdir
from bzrlib.add import smart_add
from bzrlib.benchmarks import Benchmark
from bzrlib.branch import Branch
from bzrlib.bundle import read_bundle
from bzrlib.bundle.apply_bundle import install_bundle
from bzrlib.bundle.serializer import write_bundle
from bzrlib.revision import NULL_REVISION
from bzrlib.revisionspec import RevisionSpec
from bzrlib.workingtree import WorkingTree
class BundleBenchmark(Benchmark):
"""Benchmarks for bzr bundle performance and bzr merge with a bundle."""
def test_create_bundle_known_kernel_like_tree(self):
"""Create a bundle for a kernel sized tree with no ignored, unknowns,
or added and one commit.
"""
self.make_kernel_like_committed_tree()
self.time(self.run_bzr, 'bundle', '--revision', '..-1')
def test_create_bundle_many_commit_tree (self):
"""Create a bundle for a tree with many commits but no changes."""
self.make_many_commit_tree()
self.time(self.run_bzr, 'bundle', '--revision', '..-1')
def test_create_bundle_heavily_merged_tree(self):
"""Create a bundle for a heavily merged tree."""
self.make_heavily_merged_tree()
self.time(self.run_bzr, 'bundle', '--revision', '..-1')
def test_apply_bundle_known_kernel_like_tree(self):
"""Create a bundle for a kernel sized tree with no ignored, unknowns,
or added and one commit.
"""
tree = self.make_kernel_like_committed_tree('tree')
f = open('bundle', 'wb')
try:
write_bundle(tree.branch.repository, tree.last_revision(),
NULL_REVISION, f)
finally:
f.close()
tree2 = self.make_branch_and_tree('branch_a')
os.chdir('branch_a')
self.time(self.run_bzr, 'merge', '../bundle')
class BundleLibraryLevelWriteBenchmark(Benchmark):
""" Benchmarks for the write_bundle library function. """
def _time_read_write(self):
print "timing"
branch, relpath = Branch.open_containing("a")
revision_history = branch.revision_history()
bundle_text = StringIO()
print "starting write bundle"
self.time(write_bundle, branch.repository, revision_history[-1],
NULL_REVISION, bundle_text)
print "stopped writing bundle"
bundle_text.seek(0)
target_tree = self.make_branch_and_tree('b')
print "starting reading bundle"
bundle = self.time(read_bundle, bundle_text)
print "starting installing bundle"
self.time(install_bundle, target_tree.branch.repository, bundle)
def test_few_files_small_tree_1_revision(self):
os.mkdir("a")
tree, files = self.create_with_commits(5, 1, directory_name="a")
self.commit_some_revisions(tree, files[:5], 1, 1)
self._time_read_write()
def test_few_files_small_tree_100_revision(self):
os.mkdir("a")
tree, files = self.create_with_commits(5, 1, directory_name="a")
self.commit_some_revisions(tree, files[:5], 100, 1)
self._time_read_write()
def test_few_files_small_tree_1000_revision(self):
os.mkdir("a")
tree, files = self.create_with_commits(5, 1, directory_name="a")
self.commit_some_revisions(tree, files[:5], 1000, 1)
self._time_read_write()
def test_few_files_moderate_tree_1_revision(self):
os.mkdir("a")
tree, files = self.create_with_commits(100, 1, directory_name="a")
self.commit_some_revisions(tree, files[:5], 1, 1)
self._time_read_write()
def test_few_files_moderate_tree_100_revision(self):
os.mkdir("a")
tree, files = self.create_with_commits(100, 1, directory_name="a")
self.commit_some_revisions(tree, files[:5], 100, 1)
self._time_read_write()
def test_few_files_moderate_tree_1000_revision(self):
os.mkdir("a")
tree, files = self.create_with_commits(100, 1, directory_name="a")
self.commit_some_revisions(tree, files[:5], 1000, 1)
self._time_read_write()
def test_some_files_moderate_tree_1_revision(self):
os.mkdir("a")
tree, files = self.create_with_commits(100, 1, directory_name="a")
self.commit_some_revisions(tree, files[:100], 1, 1)
self._time_read_write()
def test_some_files_moderate_tree_100_revision(self):
os.mkdir("a")
tree, files = self.create_with_commits(100, 1, directory_name="a")
self.commit_some_revisions(tree, files[:100], 100, 1)
self._time_read_write()
def test_some_files_moderate_tree_1000_revision(self):
os.mkdir("a")
tree, files = self.create_with_commits(100, 1, directory_name="a")
self.commit_some_revisions(tree, files[:100], 1000, 1)
self._time_read_write()
def test_few_files_big_tree_1_revision(self):
os.mkdir("a")
tree, files = self.create_with_commits(1000, 1, directory_name="a")
self.commit_some_revisions(tree, files[:5], 1, 1)
self._time_read_write()
def test_few_files_big_tree_100_revision(self):
os.mkdir("a")
tree, files = self.create_with_commits(1000, 1, directory_name="a")
self.commit_some_revisions(tree, files[:5], 100, 1)
self._time_read_write()
def test_few_files_big_tree_1000_revision(self):
os.mkdir("a")
tree, files = self.create_with_commits(1000, 1, directory_name="a")
self.commit_some_revisions(tree, files[:5], 1000, 1)
self._time_read_write()
def test_some_files_big_tree_1_revision(self):
os.mkdir("a")
tree, files = self.create_with_commits(1000, 1, directory_name="a")
self.commit_some_revisions(tree, files[:100], 1, 1)
self._time_read_write()
def test_some_files_big_tree_100_revision(self):
os.mkdir("a")
tree, files = self.create_with_commits(1000, 1, directory_name="a")
self.commit_some_revisions(tree, files[:100], 100, 1)
self._time_read_write()
def test_some_files_big_tree_1000_revision(self):
os.mkdir("a")
tree, files = self.create_with_commits(1000, 1, directory_name="a")
self.commit_some_revisions(tree, files[:100], 1000, 1)
self._time_read_write()
def test_many_files_big_tree_1_revision(self):
os.mkdir("a")
tree, files = self.create_with_commits(1000, 1, directory_name="a")
self.commit_some_revisions(tree, files[:1000], 1, 1)
self._time_read_write()
def test_many_files_big_tree_100_revision(self):
os.mkdir("a")
tree, files = self.create_with_commits(1000, 1, directory_name="a")
self.commit_some_revisions(tree, files[:1000], 100, 1)
self._time_read_write()
def test_many_files_big_tree_1000_revision(self):
os.mkdir("a")
tree, files = self.create_with_commits(1000, 1, directory_name="a")
self.commit_some_revisions(tree, files[:1000], 1000, 1)
self._time_read_write()
class BundleLibraryLevelInstallBenchmark(Benchmark):
""" Benchmarks for the install_bundle library function. """
def _time_read_write(self):
branch, relpath = Branch.open_containing("a")
revision_history = branch.revision_history()
bundle_text = StringIO()
write_bundle(branch.repository, revision_history[-1],
NULL_REVISION, bundle_text)
bundle_text.seek(0)
target_tree = self.make_branch_and_tree('b')
bundle = self.time(read_bundle, bundle_text)
self.time(install_bundle, target_tree.branch.repository, bundle)
def test_few_files_small_tree_1_revision(self):
os.mkdir("a")
tree, files = self.create_with_commits(5, 1, directory_name="a")
self.commit_some_revisions(tree, files[:5], 1, 1)
self._time_read_write()
def test_few_files_small_tree_100_revision(self):
os.mkdir("a")
tree, files = self.create_with_commits(5, 1, directory_name="a")
self.commit_some_revisions(tree, files[:5], 100, 1)
self._time_read_write()
def test_few_files_moderate_tree_1_revision(self):
os.mkdir("a")
tree, files = self.create_with_commits(100, 1, directory_name="a")
self.commit_some_revisions(tree, files[:5], 1, 1)
self._time_read_write()
def test_few_files_moderate_tree_100_revision(self):
os.mkdir("a")
tree, files = self.create_with_commits(100, 1, directory_name="a")
self.commit_some_revisions(tree, files[:5], 100, 1)
self._time_read_write()
def test_some_files_moderate_tree_1_revision(self):
os.mkdir("a")
tree, files = self.create_with_commits(100, 1, directory_name="a")
self.commit_some_revisions(tree, files[:100], 1, 1)
self._time_read_write()
def test_some_files_moderate_tree_100_revision(self):
os.mkdir("a")
tree, files = self.create_with_commits(100, 1, directory_name="a")
self.commit_some_revisions(tree, files[:100], 100, 1)
self._time_read_write()
def test_few_files_big_tree_1_revision(self):
os.mkdir("a")
tree, files = self.create_with_commits(1000, 1, directory_name="a")
self.commit_some_revisions(tree, files[:5], 1, 1)
self._time_read_write()
def test_few_files_big_tree_100_revision(self):
os.mkdir("a")
tree, files = self.create_with_commits(1000, 1, directory_name="a")
self.commit_some_revisions(tree, files[:5], 100, 1)
self._time_read_write()
def test_some_files_big_tree_1_revision(self):
os.mkdir("a")
tree, files = self.create_with_commits(1000, 1, directory_name="a")
self.commit_some_revisions(tree, files[:100], 1, 1)
self._time_read_write()
def test_some_files_big_tree_100_revision(self):
os.mkdir("a")
tree, files = self.create_with_commits(1000, 1, directory_name="a")
self.commit_some_revisions(tree, files[:100], 100, 1)
self._time_read_write()
def test_many_files_big_tree_1_revision(self):
os.mkdir("a")
tree, files = self.create_with_commits(1000, 1, directory_name="a")
self.commit_some_revisions(tree, files[:1000], 1, 1)
self._time_read_write()
def test_many_files_big_tree_100_revision(self):
os.mkdir("a")
tree, files = self.create_with_commits(1000, 1, directory_name="a")
self.commit_some_revisions(tree, files[:1000], 100, 1)
self._time_read_write()
if __name__ == '__main__':
# USE the following if you want to regenerate the above test functions
for treesize, treesize_h in [(5, "small"), (100, "moderate"),
(1000, "big")]:
for bundlefiles, bundlefiles_h in [(5, "few"), (100, "some"),
(1000, "many")]:
if bundlefiles > treesize:
continue
for num_revisions in [1, 100, 1000]:
code = """\
def test_%s_files_%s_tree_%s_revision(self):
os.mkdir("a")
tree, files = self.create_with_commits(%s, 1, directory_name="a")
self.commit_some_revisions(tree, files[:%s], %s, 1)
self._time_read_write()
""" % (bundlefiles_h, treesize_h, num_revisions,
treesize, bundlefiles, num_revisions)
print code
|