Compute the cost of sorting the relation in seconds

Assignment Help Basic Computer Science
Reference no: EM1364587

Suppose you need to sort a relation of 40 GB with a 4KB blocks using a memory size of 40 MB. Suppose the cost of a seek is 5 milliseconds while the disk transfer rate is 40 MB per second.

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

b) In each case, how many merge passes are required?

c) Suppose a flash storage device is used instead of disk, and it has a seek time of 1 microsecond and a transfer rate of 40 MB per second

Recompute the cost of sorting the relation in seconds with
bb =1 and
bb =100

Reference no: EM1364587

Soft and self-management skills

A common perception is that soft and self-management skills such as listening, communication, an stress management are innate. In other words, you are either born with them

How many would you expect to be nearsighted

Vision. It is generally believed that nearsightedness affects about 12% of all children. A school district tests the vision of 169 incoming kindergarten children. How many w

Futilization of the link as a function of n

N Ethernet stations are trying to send data at the same time. They use an access control algorithm that needs N/3 time slots to select a host that can transmit next. If each p

What form factor is the motherboard most likely to be

The computer is in a full-tower case, with a large motherboard installed within that clearly can't be put into a slimline case from that same era. What form factor is the m

Advancement of mobile device technologies.

Identify the role you believe mobile devices have on email investigations. Provide an example of the added challenges that have been introduced based on the advancement of m

Define class pseudo_window that looks as much like a window

Maybe you could add some fake "contents," such as an image. It need not actually do anything. It is acceptable (and indeed recommended) to have it appear within a Simple_win

Develop an activity diagram for the scenario

Using the Activity Diagram above, produce a system sequence diagram, i.e. only include two swimlanes - one for the actor (PSSM employee) and the other for the entire system

Design and implement a function to find all negative values

Design and implement a function to find all negative values within a given list. Your function should return a new list containing the negative values. When does the worst c


Write a Review

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd