c# - 性能计数器集合

Question

有没有办法获得性能计数器的集合？

我的意思是，而不是创建几个性能计数器，例如

PerformanceCounter actions = new PerformanceCounter("CategoryName", "CounterName1","instance");
PerformanceCounter tests = new PerformanceCounter("CategoryName", "CounterName2", "instance");

我想获得一个集合(用于 CategoryName)，其中每个项目都是一个 CounterName 项目。

所以不需要单独的计数器创建。

Answer 1

根据您的描述，我相信您想创建自定义计数器。您可以一次创建计数器，但必须一一创建它们的实例。

使用 CounterCreationDataCollection和 CounterCreationData类。首先，创建计数器数据，将它们添加到新的计数器类别，然后创建它们的实例:

//Create the counters data. You could also use a loop here if your counters will have exactly these names.
CounterCreationDataCollection counters = new CounterCreationDataCollection();
counters.Add(new CounterCreationData("CounterName1", "Description of Counter1", PerformanceCounterType.AverageCount64));
counters.Add(new CounterCreationData("CounterName2", "Description of Counter2", PerformanceCounterType.AverageCount64));

//Create the category with the prwviously defined counters.
PerformanceCounterCategory.Create("CategoryName", "CategoryDescription", PerformanceCounterCategoryType.MultiInstance, counters);

//Create the Instances
CategoryName actions = new PerformanceCounter("CategoryName", "CounterName1", "Instance1", false));
CategoryName tests = new PerformanceCounter("CategoryName", "CounterName2", "Instance1", false));

我的建议是不要使用通用名称作为计数器名称。创建计数器后，您可能希望收集它们的数据(可能通过性能监视器)，而不是 CounteName1使用计数器代表的名称作为名称(例如操作、测试...)。

编辑

要一次获取特定类别的所有计数器，请创建计数器类别的实例并使用 GetCounters方法:

PerformanceCounterCategory category = new PerformanceCounterCategory("CategoryName");
PerformanceCounter[] counters = category.GetCounters("instance");

foreach (PerformanceCounter counter in counters)
{
    //do something with the counter
}