1 # Copyright (C) 2012 Google Inc. All rights reserved. 2 # 3 # Redistribution and use in source and binary forms, with or without 4 # modification, are permitted provided that the following conditions are 5 # met: 6 # 7 # * Redistributions of source code must retain the above copyright 8 # notice, this list of conditions and the following disclaimer. 9 # * Redistributions in binary form must reproduce the above 10 # copyright notice, this list of conditions and the following disclaimer 11 # in the documentation and/or other materials provided with the 12 # distribution. 13 # * Neither the name of Google Inc. nor the names of its 14 # contributors may be used to endorse or promote products derived from 15 # this software without specific prior written permission. 16 # 17 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 18 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 19 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 20 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 21 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 22 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 23 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 27 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 29 import unittest 30 31 from webkitpy.common.system.platforminfo_mock import MockPlatformInfo 32 from webkitpy.common.system.systemhost_mock import MockSystemHost 33 34 from .profiler import ProfilerFactory, GooglePProf 35 36 37 class ProfilerFactoryTest(unittest.TestCase): 38 def _assert_default_profiler_name(self, os_name, expected_profiler_name): 39 profiler_name = ProfilerFactory.default_profiler_name(MockPlatformInfo(os_name)) 40 self.assertEqual(profiler_name, expected_profiler_name) 41 42 def test_default_profilers(self): 43 self._assert_default_profiler_name('mac', 'iprofiler') 44 self._assert_default_profiler_name('linux', 'perf') 45 self._assert_default_profiler_name('win32', None) 46 self._assert_default_profiler_name('freebsd', None) 47 48 def test_default_profiler_output(self): 49 host = MockSystemHost() 50 self.assertFalse(host.filesystem.exists("/tmp/output")) 51 52 # Default mocks are Mac, so iprofile should be default. 53 profiler = ProfilerFactory.create_profiler(host, '/bin/executable', '/tmp/output') 54 self.assertTrue(host.filesystem.exists("/tmp/output")) 55 self.assertEqual(profiler._output_path, "/tmp/output/test.dtps") 56 57 # Linux defaults to perf. 58 host.platform.os_name = 'linux' 59 profiler = ProfilerFactory.create_profiler(host, '/bin/executable', '/tmp/output') 60 self.assertEqual(profiler._output_path, "/tmp/output/test.data") 61 62 63 class GooglePProfTest(unittest.TestCase): 64 def test_pprof_output_regexp(self): 65 pprof_output = """ 66 sometimes 67 there 68 is 69 junk before the total line 70 71 72 Total: 3770 samples 73 76 2.0% 2.0% 104 2.8% lookup (inline) 74 60 1.6% 3.6% 60 1.6% FL_SetPrevious (inline) 75 56 1.5% 5.1% 56 1.5% MaskPtr (inline) 76 51 1.4% 6.4% 222 5.9% WebCore::HTMLTokenizer::nextToken 77 42 1.1% 7.6% 47 1.2% WTF::Vector::shrinkCapacity 78 35 0.9% 8.5% 35 0.9% WTF::RefPtr::get (inline) 79 33 0.9% 9.4% 43 1.1% append (inline) 80 29 0.8% 10.1% 67 1.8% WTF::StringImpl::deref (inline) 81 29 0.8% 10.9% 100 2.7% add (inline) 82 28 0.7% 11.6% 28 0.7% WebCore::QualifiedName::localName (inline) 83 25 0.7% 12.3% 27 0.7% WebCore::Private::addChildNodesToDeletionQueue 84 24 0.6% 12.9% 24 0.6% __memcpy_ssse3_back 85 23 0.6% 13.6% 23 0.6% intHash (inline) 86 23 0.6% 14.2% 76 2.0% tcmalloc::FL_Next 87 23 0.6% 14.8% 95 2.5% tcmalloc::FL_Push 88 22 0.6% 15.4% 22 0.6% WebCore::MarkupTokenizerBase::InputStreamPreprocessor::peek (inline) 89 """ 90 expected_first_ten_lines = """ 76 2.0% 2.0% 104 2.8% lookup (inline) 91 60 1.6% 3.6% 60 1.6% FL_SetPrevious (inline) 92 56 1.5% 5.1% 56 1.5% MaskPtr (inline) 93 51 1.4% 6.4% 222 5.9% WebCore::HTMLTokenizer::nextToken 94 42 1.1% 7.6% 47 1.2% WTF::Vector::shrinkCapacity 95 35 0.9% 8.5% 35 0.9% WTF::RefPtr::get (inline) 96 33 0.9% 9.4% 43 1.1% append (inline) 97 29 0.8% 10.1% 67 1.8% WTF::StringImpl::deref (inline) 98 29 0.8% 10.9% 100 2.7% add (inline) 99 28 0.7% 11.6% 28 0.7% WebCore::QualifiedName::localName (inline) 100 """ 101 host = MockSystemHost() 102 profiler = GooglePProf(host, '/bin/executable', '/tmp/output') 103 self.assertEqual(profiler._first_ten_lines_of_profile(pprof_output), expected_first_ten_lines) 104
