A programmer who writes programs specifically to exhibit good locality can expect marked improvement in their execution efficiency. List several strategies a programmer can use to improve locality. In particular, what high-level language features should be emphasized?
What will be an ideal response?
Some high-level features that should be emphasized are arrays and repetition statements.
These increase the amount of spatial locality because data is stored and accessed in
sequential virtual address order. Repetition statements involve temporal locality—the body
of the repetition statement is likely to be repeated (many times) in the near future.
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