This window is particularly interesting on an Apple Silicon (M1/M2) Mac as the Macs have two different types of CPU core - performance and efficiency. The CPU History Window is much more useful. My opinion is that the embellishments of the dock icon are too simplified (and disappear with autohide of my dock). Each bar represents the instantaneous usage of each core. The dock icon is just this condensed to one graph.ĬPU Usage window: As many vertically bars as you have CPU cores.
Show these in Activity Monitor with Menubar > Windows > CLU Usage and CPU History (also Command-2 and Command-3).ĬPU History window: CPU History (system and user mode) for each process core - I get 16 graphs from 8 cores with hyper threading. The more blobs the higher the CPU usage.īoth the above are condensed views of the CPU History and CPU Usage windows.
On my Mac this shows 10 vertically arranged pale blue blobs. Much the same as graph in main window.ĬPU Usage - Dock: Shows current (instantaneous) CPU usage. My Mac shows just one graph as Dock icon. This command doesnt work with M1-based Macs. Terminal will continue to update the temperature until you close the app. Wait for Terminal to display your CPU temperature. The two colours represent system (red) and user (green) modes. Type in sudo powermetrics -samplers smc grep -i 'CPU die temperature'. Mine is macOS 13 (Ventura) and 2019 iMac (8 core with hyper threading).ĬPU History - Dock: The horizontal axis is time, just like the graph on the main CPU window. There is variation with version of macOS and model of Mac. /rebates/&252fresource252fmac-cpu-usage.
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