83 lines
3.1 KiB
C++
83 lines
3.1 KiB
C++
/*
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* Copyright (C) 2021 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#include "JITSizeStatistics.h"
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#if ENABLE(JIT)
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#include "CCallHelpers.h"
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#include "LinkBuffer.h"
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#include <wtf/BubbleSort.h>
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namespace JSC {
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JITSizeStatistics::Marker JITSizeStatistics::markStart(String identifier, CCallHelpers& jit)
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{
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Marker marker;
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marker.identifier = identifier;
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marker.start = jit.labelIgnoringWatchpoints();
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return marker;
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}
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void JITSizeStatistics::markEnd(Marker marker, CCallHelpers& jit)
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{
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CCallHelpers::Label end = jit.labelIgnoringWatchpoints();
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jit.addLinkTask([=] (LinkBuffer& linkBuffer) {
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size_t size = linkBuffer.locationOf<NoPtrTag>(end).untaggedExecutableAddress<char*>() - linkBuffer.locationOf<NoPtrTag>(marker.start).untaggedExecutableAddress<char*>();
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linkBuffer.addMainThreadFinalizationTask([=] {
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auto& entry = m_data.add(marker.identifier, Entry { }).iterator->value;
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++entry.count;
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entry.totalBytes += size;
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});
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});
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}
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void JITSizeStatistics::dump(PrintStream& out) const
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{
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Vector<std::pair<String, Entry>> entries;
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for (auto pair : m_data)
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entries.append(std::make_pair(pair.key, pair.value));
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std::sort(entries.begin(), entries.end(), [] (const auto& lhs, const auto& rhs) {
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return lhs.second.totalBytes > rhs.second.totalBytes;
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});
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out.println("JIT size statistics:");
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out.println("==============================================");
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for (auto& entry : entries) {
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size_t totalBytes = entry.second.totalBytes;
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size_t count = entry.second.count;
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double avg = static_cast<double>(totalBytes) / static_cast<double>(count);
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out.println(entry.first, " totalBytes: ", totalBytes, " count: ", count, " avg: ", avg);
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}
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}
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} // namespace JSC
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#endif // ENABLE(JIT)
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