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Process Switching By Students: Ali448 Abbas441 Ammar463 Murtadah468 Mohammed468.

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Presentation on theme: "Process Switching By Students: Ali448 Abbas441 Ammar463 Murtadah468 Mohammed468."— Presentation transcript:

1 Process Switching By Students: Ali448 Abbas441 Ammar463 Murtadah468 Mohammed468

2 Definition Process Switching To control the execution of processes, the kernel must be able to suspend the execution of the process running on the CPU and resume the execution of some other process previously suspended. Operation that provides full route evaluation and per-packet load balancing across parallel WAN links.

3 Structure of a Task

4

5 Performing the Process Switch A process switch may occur at just one well-defined point: the schedule( ) function Essentially, every process switch consists of two steps: 1. Switching the Page Global Directory to install a new address space. 2. Switching the Kernel Mode stack and the hardware context, which provides all the information needed by the kernel to execute the new process, including the CPU registers.

6 Example

7 Summary Detention. Structure of a Task. Performing the Process Switch. Example. Reference: http://linux.linti.unlp.edu.ar/images/5/55/Ulk3-cap3.pdf (accessed on Sunday 5 th of May 2013)


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