Question
Using the information below, CPU X = 0.3 ms (the average time to execute 1,000 instructions) Drive A = 0.7 ms (average data access speed)
Using the information below,
CPU X = 0.3 ms (the average time to execute 1,000 instructions)
Drive A = 0.7 ms (average data access speed)
Drive B = 4 ms (average data access speed)
Drive C = .03 ms (average data access speed)
Calculate I/O access speed using this CPU and each of the disk drives as they evaluate the following track requests in this order: 16, 4, 9, 16, 29, 31, 5. Then, in each case, calculate the access speeds after the track requests are reordered and rank the three disk drives before and after reordering.
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Database Driven Web Sites
Authors: Mike Morrison, Joline Morrison
1st Edition
061901556X, 978-0619015565
