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/*
* 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 <runtime/JSCInlines.h>
#include <WebCore/JSDOMWindow.h>
#include <runtime/JSLock.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) {
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);
}
static ApplicationMemoryStats sampleMemoryAllocatedForApplication()
{
ApplicationMemoryStats applicationStats = {0, 0, 0, 0, 0, 0, 0};
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;
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);
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 Committed 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
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