vc获取当前进程CPU使用率

double GetCPUUserRate()

{

	HANDLE hProcess=::GetCurrentProcess();

	static DWORD s_dwTickCountOld = 0;

	static LARGE_INTEGER s_lgProcessTimeOld={0};

	static DWORD s_dwProcessorCoreNum = 0;

	if (!s_dwProcessorCoreNum)

	{

		SYSTEM_INFO sysInfo = {0};

		GetSystemInfo(&sysInfo);

		s_dwProcessorCoreNum = sysInfo.dwNumberOfProcessors;

	}

	double dbProcCpuPercent = 0;

	BOOL bRetCode = FALSE;

	FILETIME CreateTime, ExitTime, KernelTime,UserTime;

	LARGE_INTEGER lgKernelTime;

	LARGE_INTEGER lgUserTime;

	LARGE_INTEGER lgCurTime;

	bRetCode = GetProcessTimes(hProcess, &CreateTime, &ExitTime, &KernelTime, &UserTime);

	if (bRetCode)

	{

		lgKernelTime.HighPart = KernelTime.dwHighDateTime;

		lgKernelTime.LowPart = KernelTime.dwLowDateTime;

		lgUserTime.HighPart = UserTime.dwHighDateTime;

		lgUserTime.LowPart = UserTime.dwLowDateTime;

		lgCurTime.QuadPart=(lgKernelTime.QuadPart+lgUserTime.QuadPart);

		if (s_lgProcessTimeOld.QuadPart)

		{

			DWORD dwElepsedTime=::GetTickCount()-s_dwTickCountOld;

			dbProcCpuPercent =(double)(((double)((lgCurTime.QuadPart - s_lgProcessTimeOld.QuadPart) * 100)) / dwElepsedTime)/10000;

			dbProcCpuPercent = dbProcCpuPercent / s_dwProcessorCoreNum;

		}

		s_lgProcessTimeOld = lgCurTime;

		s_dwTickCountOld=::GetTickCount();

	}

	return dbProcCpuPercent;

}
巴特西

vc获取当前进程CPU使用率

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