1 /* 2 * Copyright (C) 2021 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 #ifndef DDR_H 16 #define DDR_H 17 #include "sp_profiler.h" 18 namespace OHOS { 19 namespace SmartPerf { 20 class DDR : public SpProfiler { 21 public: 22 long long GetDdrFreq(); GetInstance()23 static DDR &GetInstance() 24 { 25 static DDR instance; 26 return instance; 27 } 28 std::map<std::string, std::string> ItemData() override; 29 30 private: DDR()31 DDR() {}; 32 DDR(const DDR &); 33 DDR &operator = (const DDR &); 34 std::string ddrCurFreqPath = "/sys/class/devfreq/ddrfreq/cur_freq"; 35 }; 36 }; 37 } 38 #endif 39