Consider a variation of round robin (RR) scheduling, say NRR scheduling. In NRR scheduling, each process can have its own time quantum, q. The value of q starts out at 40 ms and decreases by 10 ms each time it goes through the round robin queue, until it reaches a minimum of 10 ms. Thus, long jobs get decreasingly shorter time slices. a.) Analyse this scheduling algorithm for three jobs A, B, and C that arrive in the system having estimated burst times of 100 ms, 120 ms, and 60 ms respectively. b.) Also identify some advantages and disadvantages that are associated with this algorithm
You are tasked to carry out an energy audit with the intention of reducing the energy consumption for a charitable organisation who occupies a large Multi-story building and distribution centre and also have a large number of small to medium sized high street stores. During surveys you identify that the staff have complained about their environment and experiencing discomfort as a result of uncomfortable temperatures in the summer months. You are also aware that rising energy costs could preclude the recommendation that the client should consider installing air conditioning systems into any ensuing refurbishment projects, as this often increases the eventual running costs of a building and should therefore this should be avoided where possible. Evaluate the benefits of the measures that you may suggest in such an audit and in your conclusion you should clearly indicate, among other things, energy saving measures that could be implemented at little or no costs to the organisation
March 25, 2015
11:37 am
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