c#/ perfmon中的自定义性能计数器
发布时间:2020-12-15 07:46:12 所属栏目:百科 来源:网络整理
导读:嗨,我正在尝试创建一个自定义性能计数器,用于perfmon.以下代码运行良好,但我有一个问题.. 有了这个解决方案,我有一个更新性能计数器值的计时器,但是我不想运行这个可执行文件来获取我需要的数据.这就是我想能够安装计数器作为一次性的事情,然后对数据进行per
嗨,我正在尝试创建一个自定义性能计数器,用于perfmon.以下代码运行良好,但我有一个问题..
有了这个解决方案,我有一个更新性能计数器值的计时器,但是我不想运行这个可执行文件来获取我需要的数据.这就是我想能够安装计数器作为一次性的事情,然后对数据进行perfmon查询(就像它对所有预安装的计数器一样). 我怎样才能做到这一点? using System; using System.Diagnostics; using System.Net.NetworkInformation; namespace PerfCounter { class PerfCounter { private const String categoryName = "Custom category"; private const String counterName = "Total bytes received"; private const String categoryHelp = "A category for custom performance counters"; private const String counterHelp = "Total bytes received on network interface"; private const String lanName = "Local Area Connection"; // change this to match your network connection private const int sampleRateInMillis = 1000; private const int numberofSamples = 100; private static NetworkInterface lan = null; private static PerformanceCounter perfCounter; static void Main(string[] args) { setupLAN(); setupCategory(); createCounters(); updatePerfCounters(); } private static void setupCategory() { if (!PerformanceCounterCategory.Exists(categoryName)) { CounterCreationDataCollection counterCreationDataCollection = new CounterCreationDataCollection(); CounterCreationData totalBytesReceived = new CounterCreationData(); totalBytesReceived.CounterType = PerformanceCounterType.NumberOfItems64; totalBytesReceived.CounterName = counterName; counterCreationDataCollection.Add(totalBytesReceived); PerformanceCounterCategory.Create(categoryName,categoryHelp,PerformanceCounterCategoryType.MultiInstance,counterCreationDataCollection); } else Console.WriteLine("Category {0} exists",categoryName); } private static void createCounters() { perfCounter = new PerformanceCounter(categoryName,counterName,false); perfCounter.RawValue = getTotalBytesReceived(); } private static long getTotalBytesReceived() { return lan.GetIPv4Statistics().BytesReceived; } private static void setupLAN() { NetworkInterface[] interfaces = NetworkInterface.GetAllNetworkInterfaces(); foreach (NetworkInterface networkInterface in interfaces) { if (networkInterface.Name.Equals(lanName)) lan = networkInterface; } } private static void updatePerfCounters() { for (int i = 0; i < numberofSamples; i++) { perfCounter.RawValue = getTotalBytesReceived(); Console.WriteLine("perfCounter.RawValue = {0}",perfCounter.RawValue); System.Threading.Thread.Sleep(sampleRateInMillis); } } } } 解决方法
在Win32中,性能计数器通过让PerfMon加载提供计数器值的DLL来工作.
在.NET中,此DLL是一个存根,它使用共享内存与正在运行的.NET进程通信.该过程定期将新值推送到共享内存块,DLL使它们可用作性能计数器. 因此,基本上,您可能必须在本机代码中实现性能计数器DLL,因为.NET性能计数器假定正在运行进程. (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |