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104 lines
5.0 KiB
Python
104 lines
5.0 KiB
Python
# Copyright (C) 2012 Google Inc. All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met:
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#
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# * Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# * Redistributions in binary form must reproduce the above
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# copyright notice, this list of conditions and the following disclaimer
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# in the documentation and/or other materials provided with the
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# distribution.
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# * Neither the name of Google Inc. nor the names of its
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# contributors may be used to endorse or promote products derived from
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# this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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import unittest
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from webkitpy.common.system.platforminfo_mock import MockPlatformInfo
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from webkitpy.common.system.systemhost_mock import MockSystemHost
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from .profiler import ProfilerFactory, GooglePProf
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class ProfilerFactoryTest(unittest.TestCase):
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def _assert_default_profiler_name(self, os_name, expected_profiler_name):
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profiler_name = ProfilerFactory.default_profiler_name(MockPlatformInfo(os_name))
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self.assertEqual(profiler_name, expected_profiler_name)
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def test_default_profilers(self):
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self._assert_default_profiler_name('mac', 'iprofiler')
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self._assert_default_profiler_name('linux', 'perf')
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self._assert_default_profiler_name('win32', None)
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self._assert_default_profiler_name('freebsd', None)
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def test_default_profiler_output(self):
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host = MockSystemHost()
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self.assertFalse(host.filesystem.exists("/tmp/output"))
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# Default mocks are Mac, so iprofile should be default.
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profiler = ProfilerFactory.create_profiler(host, '/bin/executable', '/tmp/output')
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self.assertTrue(host.filesystem.exists("/tmp/output"))
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self.assertEqual(profiler._output_path, "/tmp/output/test.dtps")
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# Linux defaults to perf.
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host.platform.os_name = 'linux'
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profiler = ProfilerFactory.create_profiler(host, '/bin/executable', '/tmp/output')
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self.assertEqual(profiler._output_path, "/tmp/output/test.data")
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class GooglePProfTest(unittest.TestCase):
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def test_pprof_output_regexp(self):
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pprof_output = """
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sometimes
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there
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is
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junk before the total line
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Total: 3770 samples
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76 2.0% 2.0% 104 2.8% lookup (inline)
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60 1.6% 3.6% 60 1.6% FL_SetPrevious (inline)
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56 1.5% 5.1% 56 1.5% MaskPtr (inline)
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51 1.4% 6.4% 222 5.9% WebCore::HTMLTokenizer::nextToken
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42 1.1% 7.6% 47 1.2% WTF::Vector::shrinkCapacity
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35 0.9% 8.5% 35 0.9% WTF::RefPtr::get (inline)
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33 0.9% 9.4% 43 1.1% append (inline)
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29 0.8% 10.1% 67 1.8% WTF::StringImpl::deref (inline)
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29 0.8% 10.9% 100 2.7% add (inline)
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28 0.7% 11.6% 28 0.7% WebCore::QualifiedName::localName (inline)
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25 0.7% 12.3% 27 0.7% WebCore::Private::addChildNodesToDeletionQueue
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24 0.6% 12.9% 24 0.6% __memcpy_ssse3_back
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23 0.6% 13.6% 23 0.6% intHash (inline)
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23 0.6% 14.2% 76 2.0% tcmalloc::FL_Next
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23 0.6% 14.8% 95 2.5% tcmalloc::FL_Push
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22 0.6% 15.4% 22 0.6% WebCore::MarkupTokenizerBase::InputStreamPreprocessor::peek (inline)
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"""
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expected_first_ten_lines = """ 76 2.0% 2.0% 104 2.8% lookup (inline)
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60 1.6% 3.6% 60 1.6% FL_SetPrevious (inline)
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56 1.5% 5.1% 56 1.5% MaskPtr (inline)
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51 1.4% 6.4% 222 5.9% WebCore::HTMLTokenizer::nextToken
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42 1.1% 7.6% 47 1.2% WTF::Vector::shrinkCapacity
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35 0.9% 8.5% 35 0.9% WTF::RefPtr::get (inline)
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33 0.9% 9.4% 43 1.1% append (inline)
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29 0.8% 10.1% 67 1.8% WTF::StringImpl::deref (inline)
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29 0.8% 10.9% 100 2.7% add (inline)
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28 0.7% 11.6% 28 0.7% WebCore::QualifiedName::localName (inline)
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"""
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host = MockSystemHost()
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profiler = GooglePProf(host, '/bin/executable', '/tmp/output')
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self.assertEqual(profiler._first_ten_lines_of_profile(pprof_output), expected_first_ten_lines)
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