PerformanceCounter.NextValue 在某些计算机上挂起
我不知道为什么，但许多计算机会因以下操作而挂起：
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);
}
在某些计算机上，程序在第一次调用 UpdateStats() 时完全挂起，而其他计算机则经历 100% CPU 负载，但程序运行（缓慢）。其他计数器，如 new PerformanceCounter("Processor", "% Processor Time", "_Total") 似乎工作正常。
有什么建议吗？这是为什么？
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);
}
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.
Any suggwstions why is that?
如果你对这篇内容有疑问，欢迎到本站社区发帖提问 参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。
绑定邮箱获取回复消息
由于您还没有绑定你的真实邮箱，如果其他用户或者作者回复了您的评论，将不能在第一时间通知您！
发布评论
评论（1）
删除打印机引用有助于消除初始挂起
现在我们收到一条新的错误消息而不是挂起，因此可以跟踪它。来自：
有关打印机驱动程序的解答
我们有两台类似的戴尔笔记本电脑（一台较新），均装有 Windows 8、MVSV 2013 和 IIS Express 8. 一个会挂，一个不会。
Removing printer references helped eliminate a hang on the initial
Now we get a fresh error message instead of hang so can trace it. From:
Answer about printer drivers
We had two similar dell laptops (one newer), both with Windows 8, MVSV 2013, and IIS Express 8. One would hang, one would not.