| /* |
| * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved. |
| * Copyright (C) 2012 Samsung Electronics |
| * |
| * 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. AND ITS CONTRIBUTORS ``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 ITS 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 "WebMemorySampler.h" |
| |
| #if ENABLE(MEMORY_SAMPLER) |
| |
| #include "NotImplemented.h" |
| #include <JavaScriptCore/MemoryStatistics.h> |
| #include <WebCore/JSDOMWindow.h> |
| #include <runtime/JSLock.h> |
| #include <runtime/Operations.h> |
| #include <string.h> |
| #include <sys/sysinfo.h> |
| #include <wtf/CurrentTime.h> |
| #include <wtf/text/WTFString.h> |
| |
| using namespace WebCore; |
| using namespace JSC; |
| using namespace WTF; |
| |
| namespace WebKit { |
| |
| struct ApplicationMemoryStats { |
| size_t totalProgramSize; |
| size_t residentSetSize; |
| size_t sharedSize; |
| size_t textSize; |
| size_t librarySize; |
| size_t dataStackSize; |
| size_t dirtyPageSize; |
| }; |
| |
| static const unsigned int maxBuffer = 128; |
| static const unsigned int maxProcessPath = 35; |
| |
| static inline String nextToken(FILE* file) |
| { |
| ASSERT(file); |
| if (!file) |
| return String(); |
| |
| char buffer[maxBuffer] = {0, }; |
| unsigned int index = 0; |
| while (index < maxBuffer) { |
| char ch = fgetc(file); |
| if (ch == EOF || (isASCIISpace(ch) && index)) // Break on non-initial ASCII space. |
| break; |
| if (!isASCIISpace(ch)) { |
| buffer[index] = ch; |
| index++; |
| } |
| } |
| |
| return String(buffer); |
| } |
| |
| static inline void appendKeyValuePair(WebMemoryStatistics& stats, const String& key, size_t value) |
| { |
| stats.keys.append(key); |
| stats.values.append(value); |
| } |
| |
| static ApplicationMemoryStats sampleMemoryAllocatedForApplication() |
| { |
| ApplicationMemoryStats applicationStats; |
| char processPath[maxProcessPath]; |
| snprintf(processPath, maxProcessPath, "/proc/self/statm"); |
| FILE* statmFileDescriptor = fopen(processPath, "r"); |
| if (!statmFileDescriptor) |
| return applicationStats; |
| |
| applicationStats.totalProgramSize = nextToken(statmFileDescriptor).toInt(); |
| applicationStats.residentSetSize = nextToken(statmFileDescriptor).toInt(); |
| applicationStats.sharedSize = nextToken(statmFileDescriptor).toInt(); |
| applicationStats.textSize = nextToken(statmFileDescriptor).toInt(); |
| applicationStats.librarySize = nextToken(statmFileDescriptor).toInt(); |
| applicationStats.dataStackSize = nextToken(statmFileDescriptor).toInt(); |
| applicationStats.dirtyPageSize = nextToken(statmFileDescriptor).toInt(); |
| |
| fclose(statmFileDescriptor); |
| |
| return applicationStats; |
| } |
| |
| String WebMemorySampler::processName() const |
| { |
| char processPath[maxProcessPath]; |
| snprintf(processPath, maxProcessPath, "/proc/self/status"); |
| FILE* statusFileDescriptor = fopen(processPath, "r"); |
| if (!statusFileDescriptor) |
| return String(); |
| |
| nextToken(statusFileDescriptor); |
| String processName = nextToken(statusFileDescriptor); |
| |
| fclose(statusFileDescriptor); |
| |
| return processName; |
| } |
| |
| WebMemoryStatistics WebMemorySampler::sampleWebKit() const |
| { |
| WebMemoryStatistics webKitMemoryStats; |
| |
| double now = currentTime(); |
| |
| appendKeyValuePair(webKitMemoryStats, ASCIILiteral("Timestamp"), now); |
| |
| ApplicationMemoryStats applicationStats = sampleMemoryAllocatedForApplication(); |
| |
| appendKeyValuePair(webKitMemoryStats, ASCIILiteral("Total Program Size"), applicationStats.totalProgramSize); |
| appendKeyValuePair(webKitMemoryStats, ASCIILiteral("RSS"), applicationStats.residentSetSize); |
| appendKeyValuePair(webKitMemoryStats, ASCIILiteral("Shared"), applicationStats.sharedSize); |
| appendKeyValuePair(webKitMemoryStats, ASCIILiteral("Text"), applicationStats.textSize); |
| appendKeyValuePair(webKitMemoryStats, ASCIILiteral("Library"), applicationStats.librarySize); |
| appendKeyValuePair(webKitMemoryStats, ASCIILiteral("Data/Stack"), applicationStats.dataStackSize); |
| appendKeyValuePair(webKitMemoryStats, ASCIILiteral("Dirty"), applicationStats.dirtyPageSize); |
| |
| size_t totalBytesInUse = 0; |
| size_t totalBytesCommitted = 0; |
| |
| #if ENABLE(GLOBAL_FASTMALLOC_NEW) |
| FastMallocStatistics fastMallocStatistics = WTF::fastMallocStatistics(); |
| size_t fastMallocBytesInUse = fastMallocStatistics.committedVMBytes - fastMallocStatistics.freeListBytes; |
| size_t fastMallocBytesCommitted = fastMallocStatistics.committedVMBytes; |
| totalBytesInUse += fastMallocBytesInUse; |
| totalBytesCommitted += fastMallocBytesCommitted; |
| |
| appendKeyValuePair(webKitMemoryStats, ASCIILiteral("Fast Malloc In Use"), fastMallocBytesInUse); |
| appendKeyValuePair(webKitMemoryStats, ASCIILiteral("Fast Malloc Committed Memory"), fastMallocBytesCommitted); |
| #endif |
| |
| size_t jscHeapBytesInUse = JSDOMWindow::commonVM()->heap.size(); |
| size_t jscHeapBytesCommitted = JSDOMWindow::commonVM()->heap.capacity(); |
| totalBytesInUse += jscHeapBytesInUse; |
| totalBytesCommitted += jscHeapBytesCommitted; |
| |
| GlobalMemoryStatistics globalMemoryStats = globalMemoryStatistics(); |
| totalBytesInUse += globalMemoryStats.stackBytes + globalMemoryStats.JITBytes; |
| totalBytesCommitted += globalMemoryStats.stackBytes + globalMemoryStats.JITBytes; |
| |
| appendKeyValuePair(webKitMemoryStats, ASCIILiteral("JavaScript Heap In Use"), jscHeapBytesInUse); |
| appendKeyValuePair(webKitMemoryStats, ASCIILiteral("JavaScript Heap Commited Memory"), jscHeapBytesCommitted); |
| |
| appendKeyValuePair(webKitMemoryStats, ASCIILiteral("JavaScript Stack Bytes"), globalMemoryStats.stackBytes); |
| appendKeyValuePair(webKitMemoryStats, ASCIILiteral("JavaScript JIT Bytes"), globalMemoryStats.JITBytes); |
| |
| appendKeyValuePair(webKitMemoryStats, ASCIILiteral("Total Memory In Use"), totalBytesInUse); |
| appendKeyValuePair(webKitMemoryStats, ASCIILiteral("Total Committed Memory"), totalBytesCommitted); |
| |
| struct sysinfo systemInfo; |
| if (!sysinfo(&systemInfo)) { |
| appendKeyValuePair(webKitMemoryStats, ASCIILiteral("System Total Bytes"), systemInfo.totalram); |
| appendKeyValuePair(webKitMemoryStats, ASCIILiteral("Available Bytes"), systemInfo.freeram); |
| appendKeyValuePair(webKitMemoryStats, ASCIILiteral("Shared Bytes"), systemInfo.sharedram); |
| appendKeyValuePair(webKitMemoryStats, ASCIILiteral("Buffer Bytes"), systemInfo.bufferram); |
| appendKeyValuePair(webKitMemoryStats, ASCIILiteral("Total Swap Bytes"), systemInfo.totalswap); |
| appendKeyValuePair(webKitMemoryStats, ASCIILiteral("Available Swap Bytes"), systemInfo.freeswap); |
| } |
| |
| return webKitMemoryStats; |
| } |
| |
| void WebMemorySampler::sendMemoryPressureEvent() |
| { |
| notImplemented(); |
| } |
| |
| } |
| #endif |