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# Copyright (C) 2006 Canonical Ltd
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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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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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"""Tests for bzr benchmark utilities performance."""
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from bzrlib.benchmarks import Benchmark
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from bzrlib.benchmarks.tree_creator.kernel_like import (
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KernelLikeTreeCreator,
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KernelLikeAddedTreeCreator,
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KernelLikeCommittedTreeCreator,
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from bzrlib.tests import TestSkipped
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class MakeKernelLikeTreeBenchmark(Benchmark):
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"""Benchmark creating benchmark trees."""
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def test_make_kernel_like_tree(self):
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"""Making a kernel sized tree should be ~ 5seconds on modern disk."""
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# on roberts machine: this originally took: 7372ms/ 7479ms
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# with the LocalTransport._abspath call: 3730ms/ 3778ms
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# with AtomicFile tuning: 2888ms/ 2926ms
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# switching to transport.append_bytes: 1468ms/ 2849ms
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self.time(self.make_kernel_like_tree)
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def test_02_make_kernel_like_tree(self):
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"""Hardlinking a kernel-like working tree should be ~1s"""
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# make sure kernel_like_tree is cached
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creator = KernelLikeTreeCreator(self, link_working=True)
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if not creator.is_caching_enabled():
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raise TestSkipped('caching is disabled')
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creator.ensure_cached()
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self.time(creator.create, root='bar')
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def test_03_make_kernel_like_added_tree(self):
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"""Time the first creation of a kernel like added tree"""
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creator = KernelLikeAddedTreeCreator(self)
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creator.disable_cache()
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self.time(creator.create, root='foo')
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def test_04_make_kernel_like_added_tree(self):
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"""Time the second creation of a kernel like added tree
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(this should be a clone)
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# make sure kernel_like_added_tree is cached
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creator = KernelLikeAddedTreeCreator(self, link_working=True)
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if not creator.is_caching_enabled():
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# Caching is disabled, this test is meaningless
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raise TestSkipped('caching is disabled')
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creator.ensure_cached()
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self.time(creator.create, root='bar')
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def test_05_make_kernel_like_committed_tree(self):
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"""Time the first creation of a committed kernel like tree"""
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creator = KernelLikeCommittedTreeCreator(self)
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creator.disable_cache()
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self.time(creator.create, root='foo')
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def test_06_make_kernel_like_committed_tree(self):
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"""Time the second creation of a committed kernel like tree
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(this should be a clone)
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creator = KernelLikeCommittedTreeCreator(self,
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if not creator.is_caching_enabled():
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# Caching is disabled, this test is meaningless
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raise TestSkipped('caching is disabled')
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creator.ensure_cached()
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self.time(creator.create, root='bar')
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def test_07_make_kernel_like_committed_tree_hardlink(self):
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"""Time the creation of a committed kernel like tree
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(this should also hardlink the .bzr/ directory)
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creator = KernelLikeCommittedTreeCreator(self,
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if not creator.is_caching_enabled():
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# Caching is disabled, this test is meaningless
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raise TestSkipped('caching is disabled')
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creator.ensure_cached()
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self.time(creator.create, root='bar')
added
removed
bzrlib/benchmarks/bench_bench.py
