/*
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* Copyright (C) 2019 The Android Open Source Project
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*
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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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#ifndef _CPU_USAGE_H_
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#define _CPU_USAGE_H_
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#include <statstype.h>
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#define CPU_USAGE_BUFFER_SIZE (6 * 30)
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#define TOP_PROCESS_COUNT (5)
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#define CPU_USAGE_PROFILE_THRESHOLD (50)
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#define PROCPROF_THRESHOLD "cpu.procprof.threshold"
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#define CPU_DISABLED "cpu.disabled"
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#define CPU_DEBUG "cpu.debug"
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#define CPU_TOPCOUNT "cpu.topcount"
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namespace android {
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namespace pixel {
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namespace perfstatsd {
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struct CpuData {
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uint64_t cpuUsage;
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uint64_t cpuTime;
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uint64_t userUsage;
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uint64_t sysUsage;
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uint64_t ioUsage;
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};
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struct ProcData {
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uint32_t pid;
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std::string name;
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float usageRatio;
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uint64_t usage;
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uint64_t user;
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uint64_t system;
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};
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class CpuUsage : public StatsType {
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public:
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CpuUsage(void);
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void refresh(void);
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void setOptions(const std::string &key, const std::string &value);
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private:
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std::chrono::system_clock::time_point mLast;
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uint32_t mCores; // cpu core num
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uint32_t mProfileThreshold;
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uint32_t mTopcount;
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bool mDisabled;
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bool mProfileProcess;
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CpuData mPrevUsage; // cpu usage of last record
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std::vector<CpuData> mPrevCoresUsage; // cpu usage per core of last record
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std::unordered_map<uint32_t, ProcData> mPrevProcdata; // <pid, last_usage>
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uint64_t mDiffCpu;
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float mTotalRatio;
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void getOverallUsage(std::chrono::system_clock::time_point &, std::string *);
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void profileProcess(std::string *);
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};
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struct ProcdataCompare {
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// sort process by usage percentage in descending order
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bool operator()(const ProcData &a, const ProcData &b) const {
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return a.usageRatio < b.usageRatio;
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}
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};
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} // namespace perfstatsd
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} // namespace pixel
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} // namespace android
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#endif /* _CPU_USAGE_H_ */
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