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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