Microsoft KB Archive/815159

= HOW TO: Analyze ASP.NET Web Application Performance by Using the Performance Administration Tool =

Article ID: 815159

Article Last Modified on 4/30/2003

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APPLIES TO


 * Microsoft ASP.NET 1.0
 * Microsoft ASP.NET 1.1

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IN THIS TASK

 * SUMMARY
 * Key Performance Monitor Counters
 * REFERENCES



SUMMARY
This step-by-step article describes how to analyze ASP.NET Web application performance by using the Performance Administration tool.

ASP.NET provides a lot of information through standard performance counters. The standard performance counters can be monitored by using the Performance snap-in. This information is useful for system administrators who must understand the performance characteristics of an ASP.NET application. The performance counters can reveal the time it takes to render pages, the burden placed on the processor, and the number of active ASP.NET sessions.

Monitoring these key counters is useful under the circumstances that follow:
 * You can create a performance baseline and then use this baseline to measure the impact of configuration changes and application upgrades.
 * You can validate changes that are made to the configuration of an application specifically to improve performance.
 * You can verify that hardware upgrades have the effect that you want on performance.
 * You can monitor the performance of the application under load. The load can be either real or artificially generated by a tool such as the Web Application Stress tool.
 * You can determine the performance impact of application upgrades.

This article describes the most important counters that you can use to analyze the performance of ASP.NET applications. This is not a complete list of ASP.NET counters. Only the minimal counters that you must have to gauge the performance of an application are described.

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Key Performance Monitor Counters
These counters are most easily viewed by using the Performance snap-in. To run the Performance snap-in, follow this steps:  On the taskbar, click start, point to Settings, and then click Control Panel. Double-click the Administrative Tools folder and then double-click Performance tool. When the Performance snap-in starts, click to select the System Monitor object in the left pane and then click Add on the tool bar to add the counters that are described in the following table. 

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