![]() If it’s somewhere near the maximum amount of RAM installed on your machine, that might explain any system slowdowns or crashes you’ve been experiencing. (A computer’s RAM, or Random Access Memory, stores information.) Keep your eye on the Memory Used entry down at the bottom of your window-this shows how much RAM macOS is currently eating up. Switch to the Memory tab, and you’ll find similar readings, but this time for RAM. The bottom of this tab will show you the overall CPU usage with a constantly updating graph. (CPU stands for Central Processing Unit this component acts as the brains of the computer and performs most of its calculations.) You’ll see all open programs in the column on the left, along with the percentage of processor time they’re currently taking up. The first tab, CPU, shows how much processing power each running program requires. If your Mac feels hot or the battery drains quickly, check the GPU activity. ![]() Note: If an Afterburner graphics card is connected to your Mac, choose Window > Afterburner History to display a graph that shows the Afterburner card usage. Yellow memory pressure: Your computer might eventually need more RAM. In the Activity Monitor app on your Mac, choose Window > GPU History. Green memory pressure: Your computer is using all of its RAM efficiently. Posted 6 years ago by Pensiondoff Same here, with my 4GB Macbook Air and always used up memry up to 3.5GB without launch any applications. Tip: You can also press and hold the Option key, then choose Apple menu > System Information to open the system report. Comparing two 27' iMacs, the one running Sierra is using roughly twice the memory of the one running El Cap. (You may need to scroll down.) Click About on the right, then click System Report. The Memory Pressure graph lets you know if your computer is using memory efficiently. On your Mac, choose Apple menu > System Settings, then click General in the sidebar. These screens are actually pretty simple to navigate. In the Activity Monitor app on your Mac, click Memory (or use the Touch Bar ). Use up to 4 CPUs and 8 GB of RAM for a virtual machine and even more in Pro. Within Activity Monitor, you’ll see a barrage of constantly changing numbers and app names, but don’t panic. 13 (High Sierra) for the last few years (because of running older software.
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