### Explain the method to find cost of sorting the relation

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##### Reference no: EM132269

Question

Assume you want to sort a relation of 40 gigabytes,with 4 kilobyte blocks,using memory size of 40 megabytes. Assume cost of seek is 5 milliseconds, even as disk transfer rate is 40 megabytes per second.

a. Find cost of sorting the relation, in seconds, with bb = 1 and with bb = 100.

b. In each case, how many combine passes are required?

c. Assume a flash storage device is used instead of a disk, and it has a seek time of 1 microsecond, and a transfer rate of 40 megabytes per second.

Recomputed cost of sorting the relation, in seconds, with bb = 1 and with bb = 100, in the setting.

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