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If you want detailed information on a specific server counter, in the Association area, click the row of the counter that you want to view detailed information for. The workspace heading indicates the newly selected entity, and the Main area displays an overtime graph for the counter you drilled down to. There is no Association area data for a counter.See “How See How most tabs are structured” on page 9structured.
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The table below describes the table that is displayed in the Association area when you view information on counters.
Table 5- 1 Counter information in the Association area
| Column | Description |
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| Category | Displays the perform category of the counter. |
| Counter Name | Displays the unique counter name. |
| Counter Value | Displays the sampled counter value. |
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To view ASP.NET related counters, do the following
- In the Time Frame list, choose the period of time you want to analyze.
- In the Instance list, choose the ASP.NET instance you want to analyze.
Counters can be examined by drilling down on a specific counter in the counters table area.
Table 2 Main counters:
| Counter | Description |
|---|---|
| Request Counters | Requests Total. Shows the number of requests served by your ASP.NET instance (IIS). These includes all pages processed by the ASP.NET ISAPI filter - not just .aspx, but also .asmx, .axd, .ashx and others. Requests Failed. Shows the number of requests that failed. A high number might indicate an exception condition is thrown repeatedly in your application. Other Requests counters. Requests not authorized, Requests authorized, Requests succeeded, Requests Timed Out., Requests Current, Requests Rejected, Requests Queued, Requests Not Found. |
| Session Counters | Session Abandoned, Sessions Timed out, Sessions Total. |
| Worker Process Counters | Worker Process restarts and Worker Process Running counters can be used to detect situations where due to a failure your ASP.NET application restarts frequently. |
| ASP.NET Error Counters | ASP.NET errors counters can be used to detect errors thrown by your web application and not handled by your code. Explanation about these counters can be found in the SmarTune workspace Advice tabs regarding these counters:
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| Cache Usage Counters | These counters can be used to detect bad usage of cache by your application. There are several ways to use caching in your ASP.NET application. Explanation about these counters can be found in the SmarTune workspace Advice tabs regarding these counters:
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How to examine Garbage Collection related statistics
You can examine your .NET instance Garbage Collection related counters over time to confirm abnormal behaviors. To view .NET Garbage Collection related counters, do the following
- In the Time Frame list, choose the period of time you want to analyze.
- In the Instance list, choose the .NET instance you want to analyze.
- On the Main area View controls, click Garbage Collection.
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You can examine your .NET instance memory and CPU related counters over time to confirm abnormal behaviors.
To view .NET memory and CPU related counters, do the following
- In the Time Frame list, choose the period of time you want to analyze.
- In the Instance list, choose the .NET instance you want to analyze.
- On the Main area View controls, click CPU & Memory.
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The Used Memory (Avg) counter shows average memory consumed by your .NET application. Use this graph to detect patterns of increasing memory usage, possibly caused by a memory leak in your code.
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