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Activity monitor mac bar8/10/2023 Look at the screenshot above and notice tat Activity Monitor is 21.4 and eul is 5.2. There are some basic stats and this is followed by a list of the apps using the most CPU. There are several sections and the first shows CPU usage. It shows brief information in the menu bar itself and detailed information when it is clicked. Stats is a free and lightweight system monitor for the menu bar on an Apple Mac and is an alternative to Activity Monitor. They work on new Apple Silicon Macs and older Intel Macs and are free. The two alternatives here use much less CPU, memory and energy and they can be permanently active. I run it, take a quick look at the data and quit as soon as I can. Its energy usage is also high and this will inevitably cause faster battery drain. On my M1 MacBook Air it can be 8 or 9% CPU. On my old Intel MacBook Air, Activity Monitor can use as much as 24% CPU activity. If your Mac is a few years old, the demands placed on the system by Activity Monitor and the latest version of macOS are too great to leave it running all the time. Resource usage is most noticeable with older Mac that have less powerful Intl CPUs, less memory and ageing batteries than with brand new Macs. It’s not a problem for the newest M2 powered Macs, but it is noticeable on the original entry level M1 MacBook Air. Run it and check the tabs to see for yourself if you have an Intel Mac. On older and less powerful Macs, Activity Monitor uses a lot of CPU, memory and energy. There is no doubt that Activity Monitor is a great app, but it is not one that you would want to leave running on the desktop all day because it uses system resources and desktop space. You can easily see technical information like CPU, memory, disk, network and even energy (battery) usage. There are many questions you might need the answer to when using your Mac and Activity Monitor can answer all of them. Is the CPU busy? Is memory or disk space running short? Which apps are using the most CPU and RAM? Why is a file taking so long to download? Is it the network speed? What is the time remaining on a MacBook’s battery? Activity Monitor on the Apple Mac is a useful utility for seeing what is going on under the macOS user interface, but it is too demanding of resources.
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