mirror of
https://github.com/openharmony/ark_runtime_core.git
synced 2026-07-19 13:17:49 -04:00
wanyanglan
14c9021696
Signed-off-by: wanyanglan <wanyanglan1@huawei.com> Change-Id: I2564094cef9c6c41263e37faf9ffbbec14223dc7
108 lines
3.4 KiB
C++
108 lines
3.4 KiB
C++
/*
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* Copyright (c) 2021 Huawei Device Co., Ltd.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "runtime/dprofiler/dprofiler.h"
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#include <chrono>
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#include "dprof/profiling_data.h"
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#include "libpandabase/os/thread.h"
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#include "libpandabase/serializer/serializer.h"
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#include "libpandabase/utils/logger.h"
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#include "runtime/include/class.h"
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#include "runtime/include/class_linker.h"
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#include "runtime/include/method.h"
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#include "runtime/include/runtime.h"
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#include "runtime/include/runtime_notification.h"
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namespace panda {
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class DProfilerListener : public RuntimeListener {
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public:
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explicit DProfilerListener(DProfiler *dprofiler) : dprofiler_(dprofiler) {}
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void VmDeath() override
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{
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Runtime::GetCurrent()->GetClassLinker()->EnumerateClasses([this](Class *klass) -> bool {
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dprofiler_->AddClass(klass);
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return true;
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});
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dprofiler_->Dump();
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}
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~DProfilerListener() override = default;
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DEFAULT_COPY_SEMANTIC(DProfilerListener);
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DEFAULT_MOVE_SEMANTIC(DProfilerListener);
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private:
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DProfiler *dprofiler_;
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};
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static PandaString GetFullName(const Method *method)
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{
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return reinterpret_cast<const char *>(method->GetClassName().data) + PandaString(".") +
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reinterpret_cast<const char *>(method->GetName().data);
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}
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static uint64_t GetHash()
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{
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auto t = std::chrono::steady_clock::now();
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return std::chrono::time_point_cast<std::chrono::nanoseconds>(t).time_since_epoch().count();
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}
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DProfiler::DProfiler(std::string_view app_name, Runtime *runtime)
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: runtime_(runtime),
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profiling_data_(
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MakePandaUnique<dprof::ProfilingData>(app_name.data(), GetHash(), os::thread::GetCurrentThreadId())),
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listener_(MakePandaUnique<DProfilerListener>(this))
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{
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runtime_->GetNotificationManager()->AddListener(listener_.get(), RuntimeNotificationManager::Event::VM_EVENTS);
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}
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void DProfiler::AddClass(const Class *klass)
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{
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for (const auto &method : klass->GetMethods()) {
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if (method.GetHotnessCounter() != 0) {
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if (!hot_methods_.insert(&method).second) {
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LOG(ERROR, DPROF) << "Method already exsists: " << GetFullName(&method);
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}
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}
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}
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}
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void DProfiler::Dump()
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{
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PandaUnorderedMap<PandaString, uint32_t> method_info_map;
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for (const Method *method : hot_methods_) {
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auto ret = method_info_map.emplace(std::make_pair(GetFullName(method), method->GetHotnessCounter()));
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if (!ret.second) {
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LOG(ERROR, DPROF) << "Method already exists: " << ret.first->first;
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}
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}
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std::vector<uint8_t> buffer;
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auto ret = serializer::TypeToBuffer(method_info_map, buffer);
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if (!ret) {
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LOG(ERROR, DPROF) << "Cannot serialize method_info_map. Error: " << ret.Error();
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return;
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}
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profiling_data_->SetFeatureDate("hotness_counters.v1", std::move(buffer));
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profiling_data_->DumpAndResetFeatures();
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}
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} // namespace panda
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