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Enumerate the advantages and disadvantages of supporting multi-threaded applications with kernel-level threads

Enumerate the advantages and disadvantages of supporting multi-threaded applications
with kernel-level threads

Answers

The advantages of kernel-level threads include: Ability to pre-emptively schedule threads as user level
scheduling generally only supports the (potentially buggy) co-operative scheduling – with the added
benefit of not requiring yields everywhere; Each thread is guaranteed a fair amount of execution time

Disadvantages of kernel-level threads include: No benefit to applications whose functions stay staunchly
in user land; a significantly smaller address space; a significantly smaller and possibly close to full stack; code is less portable as OS support is required; thread management is expensive as it requires syscalls

Titany answered the question on April 26, 2022 at 05:15

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