Displaying System StatisticsĪt the bottom of the Activity Monitor window are controls for viewing CPUusage, System Memory, Disk Activity, Disk Usage, and Network activity. The Quit buttonwill force-quit the process, and Close will close the details window. The Sample button takes a sample trace of the process execution overseveral seconds (this is mostly only useful for developers). Open Files≺ list of files that are open and in-use by theprocess.Īt the bottom of the details window are three buttons: Sample, Quit, andClose. StatisticsInformation about how the process is behaving on yoursystem, including threads, CPU time used, and the number of Unix system callsprocessed. For information on memory "types" visit( Mem_on_Mac_OS_X.html). MemoryThe amount of memory (real and virtual) being used by theprocess. The middle portion of the process details window displays information aboutone of three categories, depending on which button in the button bar ishighlighted: Memory, Statistics, or Open Files: %CPUThe amount of CPU time that the process is taking. Group IDThe ID of the group used to start the process. Note that the Parent process name is a hyperlinkclickingit opens the details window for the parent process. Processes started at boot time list the parent process ID of 1( init). Forexample, if a user starts a program from the command line (the"shell"), the ID of the shell is listed as the program's parentprocess ID. Parent Process IDThe process that started the selected process. A detail window, shown in Figure 3.47, appears.įigure3.47 View details about a selected processĪt the top of the detail window you can view the following information: If you want even more information about a process, you can double-click itwithin the listing or highlight it and click the Inspect ("I") icon inthe toolbar, or choose Process, Inspect (Command-I). Because you now have access to theprocesses that control Mac OS X, be aware that your actions could result inmaking your system inoperable. If you use the Quit button to force a process to quit, make absolutely surethat it isn't a critical process. Using the toolbar icons, you can export a process listing as an XML file,quit a process, or view details about a process using Inspect (Command-I). Click the small triangle in the upper-right corner of theprocess list to reverse the sorting order. Each column can be sorted by clickingon the column heading. Processes are listed based on seven columns: Process ID, Name, User, % CPU,Threads, Real Memory, and Virtual Memory. The larger the number, the longer you must wait for updates. Using the Monitor, UpdateFrequency menu selection, you can change the rate at which the list isrefreshed. Toavoid overwhelming the user with a list that jumps all over the place, theprocess list is only updated every few seconds. The process information is always changing. The process listing is not, as you might first think, a real-time view of theprograms running on the system. Windowed ProcessesProcesses running under the Mac OS X windowingsystem. Inactive ProcessesProcesses that are running, but sleeping (notconsuming CPU time). Other User ProcessesProcesses running from other user accounts (notincluding root).Īctive ProcessesProcesses that are currently running andactive. My ProcessesThe processes running under your user account.Īdministrator ProcessesThe processes running with administrativerights. The Show pop-up menu filters processes based on the owner.You can change the setting to show the following categories:Īll Processes≺ll the processes running on the system.Īll Processes Hierarchically≺ll the processes running on thesystem, sorted into a parent/child hierarchy. For example, typing Internet would limit the displayedprocesses to those that have the word "Internet" in their name, suchas Internet Explorer. Typing into the Find field filters processes that match thegiven string. The Filter and Show features help limit the amount of data shown within theprocess listing. Using the controls in the Process Listing screen, you can configure the typeof output and amount of the information displayed. Figure 3.46 shows the default Activity Monitordisplay.įigure3.46 The Process Listing can show you everything that is running on yourcomputer. The Activity Monitor application issimilar but contains information on all the system's processes, not justthe GUI software that is running. In Chapter 2, "Managing the Panther Workspace," you learned howpressing Option-Command-Escape opens a process list and enables you toforce-quit open applications on the system.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |