Microsoft IIS Performance Counters

The following table describes the measurements and server properties that can be monitored on the Microsoft IIS Web server during the test run:

Object

Measurement

Description

Web Service

Bytes Sent/sec

The rate at which the data bytes are sent by the Web service.

Web Service

Bytes Received/sec

The rate at which the data bytes are received by the Web service.

Web Service

Get Requests/sec

The rate at which HTTP requests using the GET method are made. Get requests are generally used for basic file retrievals or image maps, though they can be used with forms.

Web Service

Post Requests/sec

The rate at which HTTP requests using the POST method are made. Post requests are generally used for forms or gateway requests.

Web Service

Maximum Connections

The maximum number of simultaneous connections established with the Web service.

Web Service

Current Connections

The current number of connections established with the Web service.

Web Service

Current NonAnonymous Users

The number of users that currently have a non-anonymous connection using the Web service.

Web Service

Not Found Errors/sec

The rate of errors due to requests that could not be satisfied by the server because the requested document could not be found. These are generally reported to the client as an HTTP 404 error code.

Process

Private Bytes

The current number of bytes that the process has allocated that cannot be shared with other processes.

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