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Why did the developers of Linux opt for a non-preemptible kernel?
What functions a non-preemptible kernel performs in a system with a single processor? Why does the benefit diminish in systems with multiple processors?
Step by step
Solved in 2 steps
- Explain the concept of microkernels and how they differ from monolithic kernels.Linux enables atomic variable operations to avoid fundamental race conditions. What happens when multiprocessor systems use single-core processors?On a single processor system explain the benefit of better performance of multi-threaded kernel threads over single threaded kernel threads
- The non-preemptive kernel has no issue regarding to race conditions on kernel data structures because only one process is active in the kernel at a time. Explain the reason why preemptive kernel is preferred compared to non-preemptive kernel.When dealing with Linux, it provides a set of operations that ensure atomic operations on a variable, and these operations can be used to avoid basic race problems, so what happens when working with uniprocessor and multiprocessor systems?Analyze the concept of a monolithic kernel versus a microkernel in terms of their impact on system performance and flexibility.
- Under what circumstances does a multithreaded solution using multiple kernel threads provide better performance than a single threaded solution on a single- processor system?Is it more efficient to employ threads that operate at the user level as opposed to those that operate at the kernel level? What sets apart threads that run on the user level from those that run on the kernel level? Is there ever a point in time when one kind is more advantageous than another?Does Linux's partitioning serve any purpose?