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OS X Mountain Lion Server For Dummies by John Rizzo

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Monitoring Activity

Whenever my Mac or server starts to slow down or act in an odd way, I reach for Activity Monitor in the /Applications/Utilities folder to see what’s going on. Every Mac comes with Activity Monitory.

As Figure 18-14 shows, the bottom part of the Activity Monitor screen lets you view memory, CPU, and disk usage, as well as how much network traffic is going into and out of the server. Although the Server app is good for identifying trends, Activity Monitor is good for telling you what’s going on right now.

Figure 18-14: Activity Monitor.

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Most of the Activity Monitor window is taken up by a list of currently running software processes. You can list these processes in order of the amount of processor or memory they’re using by clicking the corresponding column head. Activity Monitor can help you find processes that you didn’t know were running and might not need.

tip.eps You will see processes with unfamiliar names, such as mdworker or kernel_task, using significant amounts of system resources for short periods of time. This is normal.

tip.eps One handy feature of Activity Monitor is that you can turn its Dock icon into a live status icon. The icon can turn into a pie chart of ...

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