列出类别的所有性能计数器

System.Diagnostics中是否有内置方法用于检索给定CategoryName的所有实例化性能计数器？

我们有许多使用自定义性能计数器的multithreading应用程序，现在需要添加一个仪表板来显示性能统计信息。

我想以这样一种方式制作仪表板，即只要有人在新代码中添加新计数器，就不需要更新它。

Answer 1

试试这个：

public void ListCounters(string categoryName) { PerformanceCounterCategory category = PerformanceCounterCategory.GetCategories().First(c => c.CategoryName == categoryName); Console.WriteLine("{0} [{1}]", category.CategoryName, category.CategoryType); string[] instanceNames = category.GetInstanceNames(); if (instanceNames.Length > 0) { // MultiInstance categories foreach (string instanceName in instanceNames) { ListInstances(category, instanceName); } } else { // SingleInstance categories ListInstances(category, string.Empty); } } private static void ListInstances(PerformanceCounterCategory category, string instanceName) { Console.WriteLine(" {0}", instanceName); PerformanceCounter[] counters = category.GetCounters(instanceName); foreach (PerformanceCounter counter in counters) { Console.WriteLine(" {0}", counter.CounterName); } } 

您必须了解可以具有多个实例的类别，并以稍微不同的方式处理这些实例。

Answer 2

只是为了好玩……这里的linq一行是同样的事情：

 PerformanceCounterCategory .GetCategories() .Where(cat => cat.CategoryName == "ASP.NET v4.0.30319") .Select (cat => cat.GetInstanceNames().Any() ? cat.GetInstanceNames().Select (i => cat.GetCounters(i)).SelectMany (counter => counter) : cat.GetCounters("")).SelectMany (counter => counter) .Select(counter => string.Format("{0} : {1}.{2}", counter.InstanceName , counter.CategoryName, counter.CounterName))