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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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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"""Tests for encoding performance."""
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from bzrlib.benchmarks import Benchmark
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_normal_revision_id = (u'john@arbash-meinel.com-20060801200018'
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_unicode_revision_id = (u'\u062c\u0648\u062c\u0648@\xe5rbash-meinel.com-'
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u'\xb5\xb5\xb5-20060801200018-cafa6272d9b8cac4')
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_normal_revision_id_utf8 = _normal_revision_id.encode('utf-8')
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_unicode_revision_id_utf8 = _unicode_revision_id.encode('utf-8')
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class EncodingBenchmark(Benchmark):
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super(EncodingBenchmark, self).setUp()
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# Make sure we start and end with a clean cache
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cache_utf8.clear_encoding_cache()
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self.addCleanup(cache_utf8.clear_encoding_cache)
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def encode_1M(self, revision_id):
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"""Encode the given revision id 1 million times"""
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# In a real kernel tree there are 7.7M lines of code
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# so the initial import actually has to encode a revision
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# id to store annotated lines one time for every line.
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for i in xrange(1000000):
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revision_id.encode('utf8')
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def encode_cached_1M(self, revision_id):
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"""Encode the given revision id 1 million times using the cache"""
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encode = cache_utf8.encode
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for i in xrange(1000000):
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def encode_multi(self, revision_list, count):
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"""Encode each entry in the list count times"""
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for i in xrange(count):
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for revision_id in revision_list:
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revision_id.encode('utf-8')
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def encode_cached_multi(self, revision_list, count):
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"""Encode each entry in the list count times"""
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encode = cache_utf8.encode
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for i in xrange(count):
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for revision_id in revision_list:
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def test_encode_1_by_1M_ascii(self):
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"""Test encoding a single revision id 1 million times."""
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self.time(self.encode_1M, _normal_revision_id)
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def test_encode_1_by_1M_ascii_cached(self):
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"""Test encoding a single revision id 1 million times."""
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self.time(self.encode_cached_1M, _normal_revision_id)
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def test_encode_1_by_1M_ascii_str(self):
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# We have places that think they have a unicode revision id
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# but actually, they have a plain string. So .encode(utf8)
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# actually has to decode from ascii, and then encode into utf8
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self.time(self.encode_1M, str(_normal_revision_id))
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def test_encode_1_by_1M_ascii_str_cached(self):
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self.time(self.encode_cached_1M, str(_normal_revision_id))
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def test_encode_1_by_1M_unicode(self):
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"""Test encoding a single revision id 1 million times."""
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self.time(self.encode_1M, _unicode_revision_id)
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def test_encode_1_by_1M_unicode_cached(self):
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"""Test encoding a single revision id 1 million times."""
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self.time(self.encode_cached_1M, _unicode_revision_id)
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def test_encode_1k_by_1k_ascii(self):
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"""Test encoding 5 revisions 100k times"""
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revisions = [unicode(osutils.rand_chars(60)) for x in xrange(1000)]
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self.time(self.encode_multi, revisions, 1000)
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def test_encode_1k_by_1k_ascii_cached(self):
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"""Test encoding 5 revisions 100k times"""
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revisions = [unicode(osutils.rand_chars(60)) for x in xrange(1000)]
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self.time(self.encode_cached_multi, revisions, 1000)
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def test_encode_1k_by_1k_unicode(self):
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"""Test encoding 5 revisions 100k times"""
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revisions = ['\u062c\u0648\u062c\u0648' +
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unicode(osutils.rand_chars(60)) for x in xrange(1000)]
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self.time(self.encode_multi, revisions, 1000)
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def test_encode_1k_by_1k_unicode_cached(self):
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"""Test encoding 5 revisions 100k times"""
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revisions = ['\u062c\u0648\u062c\u0648' +
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unicode(osutils.rand_chars(60)) for x in xrange(1000)]
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self.time(self.encode_cached_multi, revisions, 1000)
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class DecodingBenchmarks(Benchmark):
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super(DecodingBenchmarks, self).setUp()
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# Make sure we start and end with a clean cache
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cache_utf8.clear_encoding_cache()
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self.addCleanup(cache_utf8.clear_encoding_cache)
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def decode_1M(self, revision_id):
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for i in xrange(1000000):
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revision_id.decode('utf8')
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def decode_cached_1M(self, revision_id):
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decode = cache_utf8.decode
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for i in xrange(1000000):
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def decode_multi(self, revision_list, count):
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for i in xrange(count):
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for revision_id in revision_list:
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revision_id.decode('utf-8')
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def decode_cached_multi(self, revision_list, count):
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decode = cache_utf8.decode
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for i in xrange(count):
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for revision_id in revision_list:
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def test_decode_1_by_1M_ascii(self):
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"""Test decoding a single revision id 1 million times."""
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self.time(self.decode_1M, _normal_revision_id_utf8)
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def test_decode_1_by_1M_ascii_cached(self):
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"""Test decoding a single revision id 1 million times."""
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self.time(self.decode_cached_1M, _normal_revision_id_utf8)
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def test_decode_1_by_1M_unicode(self):
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"""Test decoding a single revision id 1 million times."""
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self.time(self.decode_1M, _unicode_revision_id_utf8)
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def test_decode_1_by_1M_unicode_cached(self):
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"""Test decoding a single revision id 1 million times."""
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self.time(self.decode_cached_1M, _unicode_revision_id_utf8)
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def test_decode_1k_by_1k_ascii(self):
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"""Test decoding 5 revisions 100k times"""
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revisions = [osutils.rand_chars(60) for x in xrange(1000)]
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self.time(self.decode_multi, revisions, 1000)
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def test_decode_1k_by_1k_ascii_cached(self):
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"""Test decoding 5 revisions 100k times"""
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revisions = [osutils.rand_chars(60) for x in xrange(1000)]
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self.time(self.decode_cached_multi, revisions, 1000)
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def test_decode_1k_by_1k_unicode(self):
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"""Test decoding 5 revisions 100k times"""
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revisions = [('\u062c\u0648\u062c\u0648' +
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unicode(osutils.rand_chars(60))).encode('utf8')
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for x in xrange(1000)]
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self.time(self.decode_multi, revisions, 1000)
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def test_decode_1k_by_1k_unicode_cached(self):
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"""Test decoding 5 revisions 100k times"""
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revisions = [('\u062c\u0648\u062c\u0648' +
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unicode(osutils.rand_chars(60))).encode('utf8')
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for x in xrange(1000)]
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self.time(self.decode_cached_multi, revisions, 1000)
added
removed
bzrlib/benchmarks/bench_cache_utf8.py
