RawValue或NextValue

Question

我有一个非常简单的问题，我认为以前已经回答过，但是我只是找不到与我要寻找的内容完全相同且简单的参考。

我有一个控制台实用程序应用程序，该应用程序根据每个输入参数获取每个Web应用程序或Windows服务的性能计数器列表。

我的简单问题是：应该使用NextValue读取哪些计数器，使用RawValue读取哪些计数器？

由于我的实用程序需要快速运行（不到2秒），因此我想高效地读取每个计数器。例如，我知道必须通过NextValue读取Process /％Processor Time，而可以通过RawValue读取Process / Working Set。

我试图让我的应用程序根据PerfCounterType（NumberItems32，CounterXXX等）来决定，该方法可以正常工作，但是我只需要有关如何读取它们的确切简单直接信息。

我的早期结论似乎是必须通过NextValue读取所有内容，以提高准确性，但是由于经验是某些人可以执行RawValue，因此最好通过第二次读取并避免需要1秒钟的睡眠。

这是潜在的计数器列表，我获得了Type：

# Bytes in all Heaps = NumberOfItems32
# Gen 0 Collections = NumberOfItems32
# Gen 1 Collections = NumberOfItems32
# Gen 2 Collections = NumberOfItems32
# Induced GC = NumberOfItems32
# of current logical Threads = NumberOfItems32
# of current physical Threads = NumberOfItems32
# of Exceps Thrown / sec = RateOfCountsPerSecond32
# of Exceps Thrown = NumberOfItems32
# of marshalling = NumberOfItems32
# of Sink Blocks in use = NumberOfItems32
% Processor Time = Timer100Ns
% Time in GC = RawFraction
Bytes Received = NumberOfItems64
Bytes Sent = NumberOfItems64
Cache % Process Memory Limit Used = RawFraction
Cache % Process Memory Limit Used = RawFraction
Cache Total Entries = NumberOfItems32
Cache Total Entries = NumberOfItems32
Cache Total Entries = NumberOfItems32
Channels = NumberOfItems32
Connections Established = NumberOfItems32
Context Proxies = NumberOfItems32
Current Queue Length = NumberOfItems32
Errors Unhandled During Execution = NumberOfItems32
Errors Unhandled During Execution = NumberOfItems32
Errors Unhandled During Execution = NumberOfItems32
Finalization Survivors = NumberOfItems32
Forms Authentication Failure = NumberOfItems32
Forms Authentication Failure = NumberOfItems32
Forms Authentication Success = NumberOfItems32
Forms Authentication Success = NumberOfItems32
Gen 0 heap size = NumberOfItems32
Gen 1 heap size = NumberOfItems32
Gen 2 heap size = NumberOfItems32
Handle Count = NumberOfItems32
Large Object Heap size = NumberOfItems32
Remote Calls/sec = RateOfCountsPerSecond32
Request Wait Time = NumberOfItems32
Request Wait Time = NumberOfItems32
Requests Executing = NumberOfItems32
Requests Executing = NumberOfItems32
Requests Executing = NumberOfItems32
Requests In Application Queue = NumberOfItems32
Requests In Application Queue = NumberOfItems32
Requests In Application Queue = NumberOfItems32
Requests Succeeded = NumberOfItems32
Requests Succeeded = NumberOfItems32
Requests Succeeded = NumberOfItems32
Requests Timed Out = NumberOfItems32
Requests Timed Out = NumberOfItems32
Requests Timed Out = NumberOfItems32
Requests/Sec = RateOfCountsPerSecond32
Requests/Sec = RateOfCountsPerSecond32
Requests/Sec = RateOfCountsPerSecond32
Sessions Active = NumberOfItems32
Sessions Active = NumberOfItems32
Sessions Active = NumberOfItems32
Thread Count = NumberOfItems32
Total Remote Calls = NumberOfItems32
Working Set - Private = NumberOfItems64