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/*
* Copyright (C) 2021 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 "JITSizeStatistics.h"
#if ENABLE(JIT)
#include "CCallHelpers.h"
#include "LinkBuffer.h"
#include <wtf/BubbleSort.h>
namespace JSC {
JITSizeStatistics::Marker JITSizeStatistics::markStart(String identifier, CCallHelpers& jit)
{
Marker marker;
marker.identifier = identifier;
marker.start = jit.labelIgnoringWatchpoints();
return marker;
}
void JITSizeStatistics::markEnd(Marker marker, CCallHelpers& jit)
{
CCallHelpers::Label end = jit.labelIgnoringWatchpoints();
jit.addLinkTask([=, this] (LinkBuffer& linkBuffer) {
size_t size = linkBuffer.locationOf<NoPtrTag>(end).untaggedExecutableAddress<char*>() - linkBuffer.locationOf<NoPtrTag>(marker.start).untaggedExecutableAddress<char*>();
linkBuffer.addMainThreadFinalizationTask([=, this] {
auto& entry = m_data.add(marker.identifier, Entry { }).iterator->value;
++entry.count;
entry.totalBytes += size;
});
});
}
void JITSizeStatistics::dump(PrintStream& out) const
{
Vector<std::pair<String, Entry>> entries;
for (auto pair : m_data)
entries.append(std::make_pair(pair.key, pair.value));
std::sort(entries.begin(), entries.end(), [] (const auto& lhs, const auto& rhs) {
return lhs.second.totalBytes > rhs.second.totalBytes;
});
out.println("JIT size statistics:");
out.println("==============================================");
for (auto& entry : entries) {
size_t totalBytes = entry.second.totalBytes;
size_t count = entry.second.count;
double avg = static_cast<double>(totalBytes) / static_cast<double>(count);
out.println(entry.first, " totalBytes: ", totalBytes, " count: ", count, " avg: ", avg);
}
}
} // namespace JSC
#endif // ENABLE(JIT)
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