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Consider the followimg nested loop contruct. Categorize the efficiency in terms of the variable n using "big-O" notation. Suppose the statements represented by the elipsis (...) require four main memory accesses (each requiring one microsecond) and two discs file accesses (each requiring one millisecond). Express in milliseconds the amount of time this construct would require to execute if n were 1000.
Image text transcribed for accessibility: consider the followimg nested loop contruct. Categorize the efficiency in terms of the variable n using "big-O" notation. Suppose the statements represented by the elipsis (...) require four main memory accesses (each requiring one microsecond) and two discs file accesses (each requiring one millisecond). Express in milliseconds the amount of time this construct would require to execute if n were 1000.
Given a cache access time of 20ns, a main memory access time of 1000ns, and a cache hit ratio of 90 percent. Assuming fetches to main memory are started in parallel with look-ups in cache
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