如何在 C# 中显示每秒接收的字节数

Question

我正在尝试显示每秒接收到的字节数，并让它们每秒在控制台中显示一次。一旦达到 .nextvalue，我就会收到无效操作异常。

PerformanceCounter NetworkDownSpeed = new PerformanceCounter("Network Interface", "Bytes Received/sec");
float CurrentNetworkDownSpeed = (int)NetworkDownSpeed.NextValue();

while (true)
{
    Console.WriteLine("Current Network Download Speed: {0}MB", CurrentNetworkDownSpeed);
    Thread.Sleep(1000);
}

Answer 1

NetworkDownSpeed.NextValue() 可以抛出 InvalidOperationException。

在 NetworkDownSpeed.NextValue 中有一条评论详细说明了原因。

// If the category does not exist, create the category and exit.
// Performance counters should not be created and immediately used.
// There is a latency time to enable the counters, they should be created
// prior to executing the application that uses the counters.
// Execute this sample a second time to use the category.

可以在此 stack overflow post.

上找到解决此问题的替代解决方案

Answer 2

很抱歉在有人回答后回答，但这是否有帮助？

private static void ShowNetworkTraffic()
{
    PerformanceCounterCategory performanceCounterCategory = new PerformanceCounterCategory("Network Interface");
    string instance = performanceCounterCategory.GetInstanceNames()[0]; // 1st NIC !
    PerformanceCounter performanceCounterSent = new PerformanceCounter("Network Interface", "Bytes Sent/sec", instance);
    PerformanceCounter performanceCounterReceived = new PerformanceCounter("Network Interface", "Bytes Received/sec", instance);

    for (int i = 0; i < 10; i++)
    {
        Console.WriteLine("bytes sent: {0}k\tbytes received: {1}k", performanceCounterSent.NextValue() / 1024, performanceCounterReceived.NextValue() / 1024);
        Thread.Sleep(500);
    }
}

来自 here.

如何在 C# 中显示每秒接收的字节数

How to display bytes received per second in C#

c#

networking

byte

performancecounter