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"Linux kernel Design and implementation" Chapter 4th reading notes

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Fourth Chapter process scheduling

The scheduler is responsible for deciding which program to run, when to run, and how long it will run. The process scheduler can be seen as a kernel subsystem that allocates a limited amount of processor time resources between the running state processes. The scheduler is the basis for multitasking operating systems like Linux.

One, multi-tasking

1. Multi-tasking operating system:

An operating system that can simultaneously interact with multiple processes concurrently. Can be divided into two categories:

  • Non-preemptive multi-tasking
  • Preemptive multi-tasking

"Linux kernel Design and implementation" Chapter 4th reading notes

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