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Viewing changes to bzrlib/benchmarks/bench_bench.py

  • Committer: Martin Pool
  • Date: 2005-05-05 07:00:17 UTC
  • Revision ID: mbp@sourcefrog.net-20050505070017-6af6a766fc558dc2
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bzrlib/benchmarks/bench_bench.py
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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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# 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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#
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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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#
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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 import (
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    osutils,
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    )
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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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    )
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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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        """
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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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        """
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        creator = KernelLikeCommittedTreeCreator(self,
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                                                 link_working=True,
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                                                 link_bzr=False)
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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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        """
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        creator = KernelLikeCommittedTreeCreator(self,
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                                                 link_working=True,
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                                                 link_bzr=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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