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What are two differences among user-level threads and kernel-level threads? Under what circumstances is one type better than the other?
(1) User-level threads are unknown by the kernel, while the kernel is aware of kernel threads.
(2) User threads are listed by the thread library and the kernel schedules kernel threads.
(3) Kernel threads require not be associated with a process while every user thread belongs to a process.
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Explain multilevel queue scheduling and multilevel feedback queue scheduling #Minimum 100 words accepted#
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Many early operating systems regarded processes as different timesharing users. The process abstraction is a popular way to organize concurrent programs, but it is not the only cho
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Define the “Throughput” of a system Throughput is Number of programs processed by it per unit time
List five services provided by an operating system. Explain how each provides convenience to the users. Explain also in which cases it would be impossible for user-level programs t
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What is the exclusive feature of UNIX Shell is the exclusive feature of UNIX.
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