World Wide Web Server Monitor Counters

• Microsoft Internet Information Server version 1.0

SUMMARY

When you install the World Wide Web (WWW) server from the Internet Information Server, four new objects are added to the existing list of objects in Windows NT Performance Monitor. This article describes an object called Internet Information Server which contains 28 counters.

Performance Monitor is a graphical tool for measuring the performance of your own computer or other computers on a network. On each computer, you can view the behavior of objects such as processors, memory, cache, threads, and processes. Each of these objects has an associated set of counters that provide information on such things as device usage, queue lengths, and delays, as well as information used for throughput and internal congestion measurements. It provides charting, alerting, and reporting capabilities that reflect current activity along with ongoing logging. You can also open log files at a later time for browsing and charting as if they were reflecting current activity.

MORE INFORMATION

The definitions of the counters under the Performance Monitor object World wide Web server are given below:

BGI Requests

Binary Gateway Interface (BGI) requests are custom gateway Dynamic Link Libraries (*.DLL files) the administrator can install to add forms processing or other dynamic data sources.

Bytes Received/sec

Bytes Received/sec is the rate that data bytes are received by the HTTP server.

Bytes Sent/sec

Bytes Sent/sec is the rate that data bytes are sent by the HTTP server.

Bytes Total/sec

Bytes Total/sec is the sum of Bytes Sent/sec and Bytes Received/sec. This is the total rate of bytes transferred by the HTTP server.

CGI requests

Common Gateway Interface (CGI) requests are custom gateway executables (*.EXE files) the administrator can install to add forms processing or other dynamic data sources.

Connection Attempts

Connection Attempts is the number of connection attempts that have been made to the HTTP server.

Connections/sec

Connections/sec is the number of HTTP requests being handled per second.

Current Anonymous Users

Current Anonymous Users is the number of anonymous users currently connected to the HTTP server.

Current BGI Requests

Current BGI Requests is the current number of BGI requests that are simultaneously being processed by the HTTP server.

Current CGI Requests

Current CGI Requests is the current number of CGI requests that are simultaneously being processed by the HTTP server. This includes WAIS index queries.

Current Connections

Current Connections is the current number of connections to the HTTP server.

Current NonAnonymous Users

Current NonAnonymous Users is the number of nonanonymous users currently connected to the HTTP server.

Files Received

Files Received is the total number of files received by the HTTP server.

Files Sent

Files Sent is the total number of files sent by the HTTP server.

Files Total

Files Total is the sum of Files Sent and Files Received. This is the total number of files transferred by the HTTP server.

Get Requests

Get Requests is the number of HTTP requests using the GET method. Get requests are generally used for basic file retrievals or image maps, though they can be used with forms.

Head Requests

Head Requests is the number of HTTP requests using the HEAD method. Head requests generally indicate a client is querying the state of a document they already have, to see if it needs to be refreshed.

Logon Attempts

Logon Attempts is the number of logon attempts that have been made by the HTTP server.

Maximum Anonymous Users

Maximum Anonymous Users is the maximum number of anonymous users simultaneously connected to the HTTP server.

Maximum BGI Requests

Maximum BGI Requests is the maximum number of BGI requests that are simultaneously being processed by the HTTP server.

Maximum CGI Requests

Maximum CGI Requests is the maximum number of CGI requests that are simultaneously being processed by the HTTP server. This includes WAIS index queries.

Maximum Connections

Maximum Connections is the maximum number of simultaneous connections to the HTTP server.

Maximum NonAnonymous Users

Maximum NonAnonymous Users is the maximum number of nonanonymous users simultaneously connected to the HTTP server.

Not Found Errors

Not Found Errors is the number of requests that could not be satisfied by the server because the requested document could not be found. These are generally reported as an HTTP 404 error code to the client.

Other Request methods

Other Request methods is the number of HTTP requests that are not GET, POST or HEAD methods. These may include PUT, DELETE, LINK or other methods supported by gateway applications.

Post Requests

Post Requests is the number of HTTP requests using the POST method. Post requests are generally used for forms or gateway requests.

Total Anonymous Users

Total Anonymous Users is the total number of anonymous users that have ever connected to the HTTP server.

Total NonAnonymous Users

Total NonAnonymous Users is the total number of nonanonymous users that have ever connected to the HTTP server.