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Chapter 7. Performance Monitor Overview
Performance Monitor is one of the most valuable tools that NT has to offer. It can measure a wide variety of system components, and can be extended by other compliant applications, such as Microsoft′s SQL Server.
This chapter covers some of the
Performance Monitor, including the following:
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•
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Logs critical system values
Sends alerts when important events occur in the network Provides a view of resource usage
The last task, measuring resource usage, is the most important and often least understood aspects of Performance Monitor. We will cover this topic in detail in Chapter 8, ªMonitoring and Performance Tuningº on page131.
7.1 Starting Performance Monitor
You can activate Performance Monitor by clicking on Start → Programs → Administrative Tools → Performance Monitor, or by typing PERFMON on the command line. In either case, you will see the window shown in Figure 92.
Figure 92. Windows NT Performance Monitor
Note
No disk activity will be monitored by Performance Monitor unless you first issue DISKPERF
By enabling the disk monitoring you are placing additional loads on the processor. We recommend that you disable this feature once you have completed your tests. This can be done by executing DISKPERF
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