PerformanceCounter.NextValue挂在一些机器 [英] PerformanceCounter.NextValue hangs on some machines

问题描述

我不知道为什么，但许多计算机挂起如下操作：

I don't know why, but many computers hangs on following operation:

void Init()
{
    net1 = new List<PerformanceCounter>();
    net2 = new List<PerformanceCounter>();
    foreach (string instance in new PerformanceCounterCategory("Network Interface").GetInstanceNames())
    {
        net1.Add(new PerformanceCounter("Network Interface", "Bytes Received/sec", instance));
        net2.Add(new PerformanceCounter("Network Interface", "Bytes Sent/sec", instance));
    }
}

//Once in 1 second
void UpdateStats()
{
    Status.Text = "";
    for (int i = 0; i < net1.Count; i++)                    
         Status.Text += string.Format("{0}/{1} Kb/sec;   ", net1[i].NextValue() / 1024, net2[i].NextValue() / 1024);
}

在一些单位计算程序完全挂起的第一个电话UpdateStats（），其他遇到100％的CPU负载，但程序运行（慢）。像柜等新的PerformanceCounter（处理器，％处理器时间，_Total）似乎很好地工作。

On some computes program hangs completely on first call of UpdateStats(), others experiencing 100% CPU load but program works (slowly). Other counters like new PerformanceCounter("Processor", "% Processor Time", "_Total") seems to work fine.

任何suggwstions这是为什么？

Any suggwstions why is that?

推荐答案

删除打印机引用帮助消除了一个挂在初始

Removing printer references helped eliminate a hang on the initial

  new PerformanceCounter("Processor", "% Processor Time", "_Total").  

现在我们得到了一个新的错误信息，而不是挂这样可以跟踪它。发件人：

Now we get a fresh error message instead of hang so can trace it. From:

回答有关打印机驱动程序

我们有两个相似的戴尔笔记本电脑（一个新的），都与Windows 8中，MVSV 2013和IIS快递8.有人会挂起，人们不会。

We had two similar dell laptops (one newer), both with Windows 8, MVSV 2013, and IIS Express 8. One would hang, one would not.

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