A sample question for my upcoming Operating Systems exam is:
Under which circumstances would the clock variant [of the second-chance algorithm] be preferred over the standard second-chance algorithm and why.
I was under the impression that the clock variant is always preferred. Am I missing something? Are there specific circumstances (hardware-related perhaps) where the clock variant would be preferred? Equally, is the standard algorithm ever preferred?
A similar question was asked and answered here but it didn't mention any benefits
EDIT: A comment from @Wandering below led me to ask my lecturer for more clarification, and he is not referring to the two-handed clock variant.
