| /* |
| * 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 <JavaScriptCore/JSCInlines.h> |
| #include <JavaScriptCore/JSLock.h> |
| #include <JavaScriptCore/MemoryStatistics.h> |
| #include <WebCore/CommonVM.h> |
| #include <WebCore/JSDOMWindow.h> |
| #include <WebCore/NotImplemented.h> |
| #include <string.h> |
| #include <sys/sysinfo.h> |
| #include <wtf/WallTime.h> |
| #include <wtf/linux/CurrentProcessMemoryStatus.h> |
| #include <wtf/text/WTFString.h> |
| |
| namespace WebKit { |
| |
| using namespace JSC; |
| using namespace WebCore; |
| |
| 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) { |
| int 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); |
| } |
| |
| 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; |
| |
| WallTime now = WallTime::now(); |
| |
| appendKeyValuePair(webKitMemoryStats, "Timestamp"_s, now.secondsSinceEpoch().seconds()); |
| |
| ProcessMemoryStatus processMemoryStatus; |
| currentProcessMemoryStatus(processMemoryStatus); |
| |
| appendKeyValuePair(webKitMemoryStats, "Total Program Bytes"_s, processMemoryStatus.size); |
| appendKeyValuePair(webKitMemoryStats, "Resident Set Bytes"_s, processMemoryStatus.resident); |
| appendKeyValuePair(webKitMemoryStats, "Resident Shared Bytes"_s, processMemoryStatus.shared); |
| appendKeyValuePair(webKitMemoryStats, "Text Bytes"_s, processMemoryStatus.text); |
| appendKeyValuePair(webKitMemoryStats, "Library Bytes"_s, processMemoryStatus.lib); |
| appendKeyValuePair(webKitMemoryStats, "Data + Stack Bytes"_s, processMemoryStatus.data); |
| appendKeyValuePair(webKitMemoryStats, "Dirty Bytes"_s, processMemoryStatus.dt); |
| |
| size_t totalBytesInUse = 0; |
| size_t totalBytesCommitted = 0; |
| |
| auto fastMallocStatistics = WTF::fastMallocStatistics(); |
| size_t fastMallocBytesInUse = fastMallocStatistics.committedVMBytes - fastMallocStatistics.freeListBytes; |
| size_t fastMallocBytesCommitted = fastMallocStatistics.committedVMBytes; |
| totalBytesInUse += fastMallocBytesInUse; |
| totalBytesCommitted += fastMallocBytesCommitted; |
| |
| appendKeyValuePair(webKitMemoryStats, "Fast Malloc In Use"_s, fastMallocBytesInUse); |
| appendKeyValuePair(webKitMemoryStats, "Fast Malloc Committed Memory"_s, fastMallocBytesCommitted); |
| |
| size_t jscHeapBytesInUse = commonVM().heap.size(); |
| size_t jscHeapBytesCommitted = commonVM().heap.capacity(); |
| totalBytesInUse += jscHeapBytesInUse; |
| totalBytesCommitted += jscHeapBytesCommitted; |
| |
| GlobalMemoryStatistics globalMemoryStats = globalMemoryStatistics(); |
| totalBytesInUse += globalMemoryStats.stackBytes + globalMemoryStats.JITBytes; |
| totalBytesCommitted += globalMemoryStats.stackBytes + globalMemoryStats.JITBytes; |
| |
| appendKeyValuePair(webKitMemoryStats, "JavaScript Heap In Use"_s, jscHeapBytesInUse); |
| appendKeyValuePair(webKitMemoryStats, "JavaScript Heap Committed Memory"_s, jscHeapBytesCommitted); |
| |
| appendKeyValuePair(webKitMemoryStats, "JavaScript Stack Bytes"_s, globalMemoryStats.stackBytes); |
| appendKeyValuePair(webKitMemoryStats, "JavaScript JIT Bytes"_s, globalMemoryStats.JITBytes); |
| |
| appendKeyValuePair(webKitMemoryStats, "Total Memory In Use"_s, totalBytesInUse); |
| appendKeyValuePair(webKitMemoryStats, "Total Committed Memory"_s, totalBytesCommitted); |
| |
| struct sysinfo systemInfo; |
| if (!sysinfo(&systemInfo)) { |
| appendKeyValuePair(webKitMemoryStats, "System Total Bytes"_s, systemInfo.totalram); |
| appendKeyValuePair(webKitMemoryStats, "Available Bytes"_s, systemInfo.freeram); |
| appendKeyValuePair(webKitMemoryStats, "Shared Bytes"_s, systemInfo.sharedram); |
| appendKeyValuePair(webKitMemoryStats, "Buffer Bytes"_s, systemInfo.bufferram); |
| appendKeyValuePair(webKitMemoryStats, "Total Swap Bytes"_s, systemInfo.totalswap); |
| appendKeyValuePair(webKitMemoryStats, "Available Swap Bytes"_s, systemInfo.freeswap); |
| } |
| |
| return webKitMemoryStats; |
| } |
| |
| void WebMemorySampler::sendMemoryPressureEvent() |
| { |
| notImplemented(); |
| } |
| |
| } |
| #endif |