The Applications tab of Task Manager in .NET framework

Paint QR Code JIS X 0510 in .NET framework The Applications tab of Task Manager

The Applications tab of Task Manager
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Monitoring Microsoft Windows Server 2003
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Processes Tab
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The Processes tab shows information about all processes running on your computer, including user-level applications, services, and other system processes. By choosing Select Columns from the View menu, you can add or remove columns of data includ ing memory usage changes (deltas), process IDs, and processor use. You can sort by any column by clicking on the column header. By right-clicking on any process, you can change the priority of processor time that the process receives, set the processor affinity on multiple processor computers, and end a process. For processes that have child or related processes, you can end all related processes by choosing End Process Tree. If you needed to end a mail application, for example, you might also need to end the MAPI spooler; appropriately, you would right-click on the mail application and choose to End Process Tree. The Processes tab is shown in Figure 12-7.
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Figure 12-7
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The Processes tab of Task Manager
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Using Task Manager
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Caution Changing settings of a process such as priority or processor affinity can have an adverse effect on the performance of other applications running on your computer. Ending a process, especially a process tree, should be done only after normal termination procedures have failed. Windows Server 2003, thankfully, safeguards its processes from termination through Task Manager, but they are still susceptible to resource starvation through inappropriate priority adjustment of other processes.
Performance Tab
The Performance tab displays a real-time view of key elements of your computer s per formance. Graphs are presented for each processor on the system and memory usage. Text displays show physical, kernel, and commit memory; also, the number of handles and threads in use by active processes are displayed. The Performance tab is shown in Figure 12-8.
Figure 12-8
The Performance tab of Task Manager
Networking Tab
The Networking tab shows all active network connections by name, their connection speed, bandwidth usage, and status. The Networking tab is shown in Figure 12-9.
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Monitoring Microsoft Windows Server 2003
Figure 12-9
The Networking tab of Task Manager
Users Tab
The Users tab shows all users who are logged on, and allows for the logoff or forced disconnection of the user from the computer. Logged-on users may be local at the console, or remotely attached from the network. Network messages can be sent to remote users (it certainly is polite to tell them before you disconnect them) by selecting the users session and then clicking Send Message. The Users tab is shown in Figure 12-10.
Figure 12-10
The Users tab of Task Manager
Lesson 3
Using Task Manager
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Practice: Task Manager
In this practice, you will use Task Manager to start an application and identify its process. 1.
Right-click an open section of the taskbar, and choose Task Manager from the shortcut menu. 2. On the Applications tab, click New Task. Type explorer, and then click OK. Windows Explorer will open focused on its default window (typically My Docu ments), and the My Documents (or other focus window) application name will appear in the Application tab of Task Manager. 3. Right-click the newly-opened application name, and choose Go To Process. The focus in Task Manager changes to the Processes tab, and the Explorer.exe process is highlighted. From this point, as a situation involving applications and Task Manager warrants, you can adjust the priority of the process or end it.
Lesson Review
The following questions are intended to reinforce key information presented in this lesson. If you are unable to answer a question, review the lesson materials and try the question again. You can find answers to the questions in the Questions and Answers section at the end of this chapter. 1. What information can Task Manager provide about the performance of applications
Your computer crashes with almost clocklike predictability approximately one hour after each system startup. You suspect an application with a memory leak that is causing the system to run out of memory. How can you use Task Manager to determine which application is causing the problem
You are running a database application on your computer. Your computer has two processors. You want the database application to run on the second processor. How can you use Task Manager to do this
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