User mode CPU time and system time differ in the following ways:
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User Mode CPU Time:
- Refers to the time the CPU spends executing user-level applications and code.
- It includes tasks performed by the program itself, such as calculations and data processing.
- It does not involve any interactions with the operating system's kernel.
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System Time:
- Refers to the time the CPU spends executing kernel-level code on behalf of the application.
- It includes tasks that require system calls, such as file I/O operations, memory management, and other interactions with the operating system.
- This time is spent in the kernel mode, where the operating system has control over the hardware.
In summary, user mode time is for application-level processing, while system time is for operations that require the operating system's intervention.
