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Table 20-1. Objects tracked in System Monitor Object Browser Cache Memory Objects Paging File PhysicalDisk Process Processor Server What It Monitors The Browser service for a domain or workgroup. Disk cache usage. Memory performance for physical and virtual memory. The number of events, mutexes, processes, sections, semaphores, and threads on the computer at the time of data collection. Pagefile usage. Hard disks with one or more partitions. All processes running on a machine. Each processor on the system. Bytes, sessions, certain system errors, pool nonpaged usage, and pool paged usage.

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Table 20-1. Objects tracked in System Monitor Object System Thread What It Monitors Counters that affect all the hardware and software running on the system. All threads running in the system.

This is where you have the option to change to the Classic Start menu. 5. Make sure that Start menu is selected, and then click Customize. The Customize Start Menu dialog box appears. The default settings are shown here:

To launch System Monitor, select Performance from the Administrative Tools menu. By default, System Monitor displays the system s current processor utilization as a line graph. Most functions are performed using the System Monitor toolbar (Figure 20-1).

View Current Activity New Counter Set View Graph View Report Delete Copy Properties Update Data Help Clear Display View Log Data Paste Freeze Display Highlight View Histogram Add

Figure 20-1.

Adding Counters You can add counters by clicking the Add button to display the Add Counters dialog box (Figure 20-2). System Monitor compresses the data as necessary so that it fits into the details pane, and you can display dozens of counters at a time, more than you can comfortably view on a single screen.

Figure 20-2.

6. Click Clear List to clear the list of most frequently used programs. 7. Click the Advanced tab to display the advanced Start menu options:

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Selecting Counters In the Add Counters dialog box, select either the Use Local Computer Counters option or the Select Counters From Computer option. If you re monitoring the computer on which System Monitor is running, you ll want to select Use Local Computer Counters. If you want to monitor a different computer, select the Select Counters From Computer option, and then choose the name of the computer to be monitored from the list box.

In the Performance Object list, specify an object to monitor. The Processor object is selected by default. For each object, you can choose to monitor all the available counters or only those you specify. To monitor all the available counters for a particular object, select the All Counters option. To monitor only the counters you specify, select the Select Counters From List option. For a description of any counter, select the name of the counter and then click Explain. Tip When you monitor multiple instances of the same counter, the instance index number assigned to a particular instance might change over time. This happens because the instance starts and stops and in the process is assigned a different instance index number.

Matching Counters to Graph Lines A color and bar thickness is assigned to each counter within the legend. If you aren t monitoring many counters, you can easily match the color to the counter. However, there are certainly occasions when several counters bunch together on the graph, making it difficult to visually separate them. When that happens, click a counter in the list below the graph and then click Highlight. As you can see in Figure 20-3, the selected line is heavily traced to make it more visible.

Figure 20-3.

8. Scroll through the list of options to see what is available, but don't change any of the default settings at this time. 9. Click OK to close the Customize Start Menu dialog box, and then click OK to close the Taskbar and Start Menu Properties dialog box. 10. Click the Start button to open the Start menu. The most frequently used programs list has been cleared.

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