I seen this statement on a security forum when a member complained about his Mac constantly using 100% CPU, fans spin and Mac slows down when running a security app:
"Macs are also kind of funny in the way they calculate CPU usage percentages. In Windows 100% of the CPU is representative of the calculated processing power of the CPU, whereas on Mac, you'll have processes sometimes running at over 100% CPU. This is a result of how Mac systems present CPU usage, as it's really looking at the usage on a single core as opposed to the usage across all cores at once. So for example, on a quad-core system the max CPU percentage available would be 400% (based on how activity monitor displays usage). Dual Core would be 200%.. etc etc”
Is there any truth to this statement between Macs and Windows?
"Macs are also kind of funny in the way they calculate CPU usage percentages. In Windows 100% of the CPU is representative of the calculated processing power of the CPU, whereas on Mac, you'll have processes sometimes running at over 100% CPU. This is a result of how Mac systems present CPU usage, as it's really looking at the usage on a single core as opposed to the usage across all cores at once. So for example, on a quad-core system the max CPU percentage available would be 400% (based on how activity monitor displays usage). Dual Core would be 200%.. etc etc”
Is there any truth to this statement between Macs and Windows?
