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Performance counters
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System Monitor graphs the performance data you are tracking.
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Part 4: Managing Windows Server 2003 Systems
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Microsoft Windows Server 2003 Inside Out In a standard installation of Windows Server 2003, many performance objects are available for monitoring. As you add services, applications, and components, additional performance objects can become available. For example, when you install the Domain Name System (DNS), the DNS object becomes available for monitoring on that computer. The most common performance objects you ll want to monitor are summarized in Table 16-1. Like all performance objects, each performance object listed here has a set of counters that can be tracked.
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Commonly Tracked Performance Objects
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Description
Monitors the Browser service for a domain or workgroup Monitors disk cache usage Monitors the logical volumes on a computer Monitors memory performance for system cache (including pooled paged and pooled nonpaged memory), physical memory, and virtual memory Monitors the network adapters configured on the computer Monitors the Active Directory directory service Monitors the number of events, mutexes, processes, sections, semaphores, and threads on the computer Monitors page file current and peak usage Monitors hard disk read/write activity as well as data transfers, hard faults, and soft faults Monitors print jobs, spooling, and print queue activity Monitors all processes running on a computer Monitors processor idle time, idle states, usage, deferred procedure calls, and interrupts Monitors current server activity and important server usage statistics, including logon errors, access errors, and sessions Monitors server threading and client requests
Performance Object
Browser Cache LogicalDisk Memory
Network Interface NTDS Objects Paging File
16
PhysicalDisk Print Queue Process Processor Server
Server Work Queues
Part 4: Managing Windows Server 2003 Systems
Part 1: Part Title
Comprehensive Performance Analysis and Logging
Table 16-1.
Commonly Tracked Performance Objects
Description
Monitors system-level counters, including processes, threads, context switching of threads, file system control operations, system calls, and system uptime Monitors all running threads and allows you to examine usage statistics for individual threads by process ID
Performance Object
System
Thread
Selecting Performance Objects and Counters to Monitor
The most commonly tracked performance objects are Memory, PhysicalDisk, and Processor. This is why when you first start Performance Monitor, System Monitor is configured to graph basic counters for these objects. Many other performance counters are available for tracking. To track additional counters, you use the Add Counters dialog box, as shown in Figure 16-2. After you access System Monitor, you display this dialog box by pressing Ctrl+I or rightclicking the graph in the details pane and selecting Add Counters.
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Figure 16-2.
Select the objects and the counters that you want to track.
Adding counters to track is easy. Select the type of object you want to work with, such as Memory, and then choose the counters for that object that you want to track. To add all counters for the object, click All Counters, and then click Add. To choose the individual counters to add, click Select Counters From List, and then select the counters to add. Use
Part 4: Managing Windows Server 2003 Systems
16
Microsoft Windows Server 2003 Inside Out Ctrl+Click or Shift+Click to select multiple counters, and then click Add. Or select one counter at a time and then click Add. Any counters you ve added will be displayed in System Monitor. You can then repeat this process, as necessary, to add counters for other performance objects. Click Close when you re finished adding counters.
Inside Out
Selecting counters when objects have multiple instances If you select an object that has multiple instances, you ll be able to select counters for a specific instance or all instances of that object. Choose All Instances to monitor the counter for all instances of the object. Choose Select Instances From List to monitor the counter for specific instances of the object. You can use Ctrl+Click or Shift+Click to select multiple instances. Then click Add to track the counter for the specified instances.
As you ve seen, it s easy to add counters to track. What isn t so easy is determining which counters you should track. While you are working with the Add Counters dialog box, you can get a detailed explanation of a counter by selecting a counter and then clicking Explain. If you add too many counters or track the wrong counters, don t worry. In the System Monitor view, you can delete counters later by clicking their entry in the lower portion of the details pane and then clicking Delete. You can also delete all counters being tracked and start over with a clean graph by pressing Ctrl+E or clicking New Counter Set. System Monitor displays each counter that you are tracking in a different color and line thickness. You can use the legend in the lower portion of the details pane to help you determine which counter is being graphed where. If you are unsure, double-click a line in the graph to select the corresponding counter in the legend list. To highlight a specific counter so that it is easy to pick out in the graph, select the counter in the legend list, and then press Ctrl+H.
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