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author | Steve Block <steveblock@google.com> | 2011-05-13 06:44:40 -0700 |
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committer | Android (Google) Code Review <android-gerrit@google.com> | 2011-05-13 06:44:40 -0700 |
commit | 08014c20784f3db5df3a89b73cce46037b77eb59 (patch) | |
tree | 47749210d31e19e6e2f64036fa8fae2ad693476f /Source/JavaScriptCore/profiler/Profile.cpp | |
parent | 860220379e56aeb66424861ad602b07ee22b4055 (diff) | |
parent | 4c3661f7918f8b3f139f824efb7855bedccb4c94 (diff) | |
download | external_webkit-08014c20784f3db5df3a89b73cce46037b77eb59.zip external_webkit-08014c20784f3db5df3a89b73cce46037b77eb59.tar.gz external_webkit-08014c20784f3db5df3a89b73cce46037b77eb59.tar.bz2 |
Merge changes Ide388898,Ic49f367c,I1158a808,Iacb6ca5d,I2100dd3a,I5c1abe54,Ib0ef9902,I31dbc523,I570314b3
* changes:
Merge WebKit at r75315: Update WebKit version
Merge WebKit at r75315: Add FrameLoaderClient PageCache stubs
Merge WebKit at r75315: Stub out AXObjectCache::remove()
Merge WebKit at r75315: Fix ImageBuffer
Merge WebKit at r75315: Fix PluginData::initPlugins()
Merge WebKit at r75315: Fix conflicts
Merge WebKit at r75315: Fix Makefiles
Merge WebKit at r75315: Move Android-specific WebCore files to Source
Merge WebKit at r75315: Initial merge by git.
Diffstat (limited to 'Source/JavaScriptCore/profiler/Profile.cpp')
-rw-r--r-- | Source/JavaScriptCore/profiler/Profile.cpp | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/Source/JavaScriptCore/profiler/Profile.cpp b/Source/JavaScriptCore/profiler/Profile.cpp new file mode 100644 index 0000000..1a84518 --- /dev/null +++ b/Source/JavaScriptCore/profiler/Profile.cpp @@ -0,0 +1,136 @@ +/* + * Copyright (C) 2008 Apple Inc. All Rights Reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY + * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "config.h" +#include "Profile.h" + +#include "ProfileNode.h" +#include <stdio.h> + +namespace JSC { + +PassRefPtr<Profile> Profile::create(const UString& title, unsigned uid) +{ + return adoptRef(new Profile(title, uid)); +} + +Profile::Profile(const UString& title, unsigned uid) + : m_title(title) + , m_uid(uid) +{ + // FIXME: When multi-threading is supported this will be a vector and calls + // into the profiler will need to know which thread it is executing on. + m_head = ProfileNode::create(0, CallIdentifier("Thread_1", UString(), 0), 0, 0); +} + +Profile::~Profile() +{ +} + +void Profile::forEach(void (ProfileNode::*function)()) +{ + ProfileNode* currentNode = m_head->firstChild(); + for (ProfileNode* nextNode = currentNode; nextNode; nextNode = nextNode->firstChild()) + currentNode = nextNode; + + if (!currentNode) + currentNode = m_head.get(); + + ProfileNode* endNode = m_head->traverseNextNodePostOrder(); + while (currentNode && currentNode != endNode) { + (currentNode->*function)(); + currentNode = currentNode->traverseNextNodePostOrder(); + } +} + +void Profile::focus(const ProfileNode* profileNode) +{ + if (!profileNode || !m_head) + return; + + bool processChildren; + const CallIdentifier& callIdentifier = profileNode->callIdentifier(); + for (ProfileNode* currentNode = m_head.get(); currentNode; currentNode = currentNode->traverseNextNodePreOrder(processChildren)) + processChildren = currentNode->focus(callIdentifier); + + // Set the visible time of all nodes so that the %s display correctly. + forEach(&ProfileNode::calculateVisibleTotalTime); +} + +void Profile::exclude(const ProfileNode* profileNode) +{ + if (!profileNode || !m_head) + return; + + const CallIdentifier& callIdentifier = profileNode->callIdentifier(); + + for (ProfileNode* currentNode = m_head.get(); currentNode; currentNode = currentNode->traverseNextNodePreOrder()) + currentNode->exclude(callIdentifier); + + // Set the visible time of the head so the %s display correctly. + m_head->setVisibleTotalTime(m_head->totalTime() - m_head->selfTime()); + m_head->setVisibleSelfTime(0.0); +} + +void Profile::restoreAll() +{ + forEach(&ProfileNode::restore); +} + +#ifndef NDEBUG +void Profile::debugPrintData() const +{ + printf("Call graph:\n"); + m_head->debugPrintData(0); +} + +typedef pair<StringImpl*, unsigned> NameCountPair; + +static inline bool functionNameCountPairComparator(const NameCountPair& a, const NameCountPair& b) +{ + return a.second > b.second; +} + +void Profile::debugPrintDataSampleStyle() const +{ + typedef Vector<NameCountPair> NameCountPairVector; + + FunctionCallHashCount countedFunctions; + printf("Call graph:\n"); + m_head->debugPrintDataSampleStyle(0, countedFunctions); + + printf("\nTotal number in stack:\n"); + NameCountPairVector sortedFunctions(countedFunctions.size()); + copyToVector(countedFunctions, sortedFunctions); + + std::sort(sortedFunctions.begin(), sortedFunctions.end(), functionNameCountPairComparator); + for (NameCountPairVector::iterator it = sortedFunctions.begin(); it != sortedFunctions.end(); ++it) + printf(" %-12d%s\n", (*it).second, UString((*it).first).utf8().data()); + + printf("\nSort by top of stack, same collapsed (when >= 5):\n"); +} +#endif + +} // namespace JSC |