Close unresponsive apps and processes
When your system is acting sluggish or simply not responding, an app or process may be the source of the problem. You can use Activity Monitor to locate the troublesome app or process and force it to quit.
CPU-Z for Mac OS X: Best alternatives Check out alternatives to CPU-Z for Mac proposed by our editors and user community. MacBooster Free. MacBooster is a utility designed to help you optimize the performance of your system. The program is packed with a wide variety of tools that enable you to locate and get rid of. Once the download had completed and the disk image was being verified, Safari hung for over a minute and there were periods where Safari used a very high%CPU: In Mac OS X 10.5, I was accustomed to seeing Safari freeze, but it never used up more than 200% CPU (2 cores x 100%).
See how much energy your Mac is using
You can find out how much energy your Mac is using, and see which apps or processes are using the most energy.
See real-time CPU, network, or disk status in the Dock
![Cpu Cpu](/uploads/1/2/6/4/126422309/484617086.png)
It’s easy to keep an eye on your system status without even looking at the Activity Monitor window—you can monitor your CPU, network, or disk usage as a live graph right in the Dock.
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To browse the Activity Monitor User Guide, click Table of Contents at the top of the page.