c++/c#系统和程序资源监控-Windows

我正在考虑制作一个改进版的Windows资源监视器，它不仅包括资源使用情况，还包括硬件状态，如温度和风扇速度。

我昨天开始用c++对它进行编程，我已经设法将它列为列表，并刷新了我电脑上每个进程的内存和CPU利用率。

然而，问题来了：速度非常慢。它使用了我i5的5%2500k@4.3每秒轮询一次使用情况时为GHz。这是不可接受的，因为我不仅想要CPU和内存的使用量，还想要每个硬盘驱动器的磁盘使用量、互联网使用量、GPU使用量（所有这些都用于每个进程），然后我还想监控所有温度。

这是我的代码：

const double MB = 1024*1024;
const double KB = 1024;
struct WinProcess
{
    wstring Name;
    unsigned int ID;
    wstring UserName;
    double cpuUsage;
    long long int ramUsage;
    WinProcess(wstring name, unsigned int id) : Name(name), ID(id), UserName(L"Not set"), cpuUsage(0), ramUsage(0) {}
};
class ResourceMonitor
{
private:
    void** hquery;
    void** hcountercpu;
    void** hcountermem;
    int cpuCores;
    vector<WinProcess> Processes;
public:
    ResourceMonitor();
    ~ResourceMonitor();
    void StartResourceMonitor();
    void MeasureResourceUsage();
    void PrintUsage();
};
ResourceMonitor::ResourceMonitor() : 
    Processes(GetProcessList())    // Function GetProcessList() returns vector with all processes, their IDs and username, from which it was launched
{
    hquery = new void*[Processes.size()];
    hcountercpu = new void*[Processes.size()];
    hcountermem = new void*[Processes.size()];
    for (unsigned int i = 2; i < Processes.size(); i++)
    {
        Processes[i].Name = Processes[i].Name.substr(0, Processes[i].Name.size() - 4);
    }
    for (unsigned int i = 2; i < Processes.size(); i++)
    {
        wstring CounterPathCPU = L"\Process(" + Processes[i].Name + L")\% Processor Time";
        wstring CounterPathMEM = L"\Process(" + Processes[i].Name + L")\Private Bytes";
        if ((PdhOpenQuery(NULL, 0, &hquery[i])) != ERROR_SUCCESS
            || PdhAddCounter(hquery[i], CounterPathCPU.c_str(), 0, &hcountercpu[i]) != ERROR_SUCCESS
            || PdhAddCounter(hquery[i], CounterPathMEM.c_str(), 0, &hcountermem[i]) != ERROR_SUCCESS
            || PdhCollectQueryData(hquery[i]) != ERROR_SUCCESS)
        {
            continue;
        }
    }
    SYSTEM_INFO sysinfo;
    GetSystemInfo(&sysinfo);
    cpuCores = sysinfo.dwNumberOfProcessors;
    wcout.setf(ios::fixed);
}
ResourceMonitor::~ResourceMonitor()
{    
    for (unsigned int i = 2; i < Processes.size(); i++)
    {
        PdhCloseQuery(hquery[i]);
        PdhRemoveCounter(hcountercpu[i]);
        PdhRemoveCounter(hcountermem[i]);
    }
    delete[] hquery;
    delete[] hcountercpu;
}
void ResourceMonitor::StartResourceMonitor()
{
    system("mode CON: COLS=150");
    while (1)
    {
        MeasureResourceUsage();
        PrintUsage();
        Sleep(1000);
    }
}
void ResourceMonitor::MeasureResourceUsage()
{
    PDH_FMT_COUNTERVALUE countervalcpu;
    PDH_FMT_COUNTERVALUE countervalmem;
    for (unsigned int i = 2; i < Processes.size(); i++)
    {
        if ((PdhCollectQueryData(hquery[i])) != ERROR_SUCCESS)
        {   
            printError(L"Error on collecting query data: ");
            continue;
        }        
        if ((PdhGetFormattedCounterValue(hcountercpu[i], PDH_FMT_LONG | PDH_FMT_NOCAP100, 0, &countervalcpu)) != ERROR_SUCCESS)
        {
            printError(L"Error on CPU usage retrieval: ");
            continue;
        }
        if ((PdhGetFormattedCounterValue(hcountermem[i], PDH_FMT_LONG, 0, &countervalmem)) != ERROR_SUCCESS)
        {
            printError(L"Error on Memory usage retrieval: ");
            continue;
        }
        Processes[i].cpuUsage = countervalcpu.longValue / (double)cpuCores;
        Processes[i].ramUsage = countervalmem.longValue;
    }
}
void ResourceMonitor::PrintUsage()
{
    system("cls");
    long long int RAMSUM = 0;
    for (unsigned int i = 2; i < Processes.size(); i++)
    {
        wcout << left << setw(40) << Processes[i].Name + L".exe: ";
        wcout << setw(6) << left << L" | ID " << setw(4) << right << Processes[i].ID;
        wcout << setw(8) << left << L" | User " << setw(15) << Processes[i].UserName;
        wcout << setw(8) << left << L" | CPU usage " << setw(10) << right << setprecision(2) << Processes[i].cpuUsage << setw(1) << L"%";
        wcout << setw(8) << left << L" | RAM usage " << setw(15) << right << setprecision(3) << Processes[i].ramUsage / MB << setw(3) << left << L" MB" << endl;
        RAMSUM += Processes[i].ramUsage;
    }
    wcout << L"Total RAM usage: " << setw(7) << right << RAMSUM / MB
        << setw(3) << left << L" MB" << endl;
}

我很清楚围绕这段代码的问题：进程列表永远不会更新，也没有GUI，但这些问题是可以解决的，因为获取进程列表功能非常快。

有没有像windows任务管理器那样检查CPU和内存使用情况的方法？我可以使用c++或c#，因为我知道这两种语言。最后，我不知道如何监控每个进程的网络流量、磁盘使用情况和GPU使用情况。有什么想法吗？谢谢你的帮助！