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/*
* Copyright (C) 2019 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef _CPU_USAGE_H_
#define _CPU_USAGE_H_
#include <statstype.h>
#define CPU_USAGE_BUFFER_SIZE (6 * 30)
#define TOP_PROCESS_COUNT (5)
#define CPU_USAGE_PROFILE_THRESHOLD (50)
#define PROCPROF_THRESHOLD "cpu.procprof.threshold"
#define CPU_DISABLED "cpu.disabled"
#define CPU_DEBUG "cpu.debug"
#define CPU_TOPCOUNT "cpu.topcount"
namespace android {
namespace pixel {
namespace perfstatsd {
struct CpuData {
uint64_t cpuUsage;
uint64_t cpuTime;
uint64_t userUsage;
uint64_t sysUsage;
uint64_t ioUsage;
};
struct ProcData {
uint32_t pid;
std::string name;
float usageRatio;
uint64_t usage;
uint64_t user;
uint64_t system;
};
class CpuUsage : public StatsType {
public:
CpuUsage(void);
void refresh(void);
void setOptions(const std::string &key, const std::string &value);
private:
std::chrono::system_clock::time_point mLast;
uint32_t mCores; // cpu core num
uint32_t mProfileThreshold;
uint32_t mTopcount;
bool mDisabled;
bool mProfileProcess;
CpuData mPrevUsage; // cpu usage of last record
std::vector<CpuData> mPrevCoresUsage; // cpu usage per core of last record
std::unordered_map<uint32_t, ProcData> mPrevProcdata; // <pid, last_usage>
uint64_t mDiffCpu;
float mTotalRatio;
void getOverallUsage(std::chrono::system_clock::time_point &, std::string *);
void profileProcess(std::string *);
};
struct ProcdataCompare {
// sort process by usage percentage in descending order
bool operator()(const ProcData &a, const ProcData &b) const {
return a.usageRatio < b.usageRatio;
}
};
} // namespace perfstatsd
} // namespace pixel
} // namespace android
#endif /* _CPU_USAGE_H_ */
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