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Activity Monitor

alevasseur14

alevasseur14

Golden Member
In Activity Monitor, what is the difference between %User and %System? How are processes divided into one category or another?

Thanks!
 
User is the CPU time for the process itself and System is time spent on behalf of a process in a driver doing I/O, etc.
 
Interesting. Thanks!

So if a program is writing a large file to the HD, the work being done by the processor will fall under System?
 
Originally posted by: Nothinman
User is the CPU time for the process itself and System is time spent on behalf of a process in a driver doing I/O, etc.
Click to expand...

That is certainly more specific than the mouse-over in Activity Monitor.

%User: Percentage of total CPU utilized in performing tasks for the User
%System: Percentage of total CPU utilized in performing tasks for the System
 
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