this project are three-fold. First, we shall gain experience in understanding (and writing to a less extend) multiprocessed and multithreaded code as a user to an operating system.

ANSWER ALL QUESTIONS

2 Objective

In this project, we are to measure cost of context switch via a set of experiments. The objective

of this project are three-fold. First, we shall gain experience in understanding (and writing to a

less extend) multiprocessed and multithreaded code as a user to an operating system. Second, we

shall gain an insight on some principles of designing and implementing process and thread in the

operating system. Third, we shall become familiar with a few design issues in CPU scheduling and

multiprocessor CPU scheduling.

3.1 Required Tasks

The teams are to replicate the experimental results illustrated in Figure 1 and Figure 2 in the

following research paper,

https://www.usenix.org/legacy/events/expcs07/papers/2-li.pdf

The source code that the authors used in conducting their experiments is at

 https://github.com/cunychenhclass/contextswitchcost

5.1 Report

Each group shall complete a 1-page report that documents minimally the following items.

• Explain what context switch is and how it is important to process and thread in operating

systems.

• Explain the concet of processor affinity and how it is relevant in the experimental design.
• Explain the concept of cache memory and how it is relevant in the experimental design.
• Explain your choice of parameters and parameter values you vary in the experiments, in

particular, contrast to the choices in the paper considering that the authors of the paper did

the experiments more than a decade ago and computer hardware has advanced a great deal

since then.

• Describe the experiment designed, and explain the rationale behind design, and why it works.
• Graph the experimental results, and through interpretation, establish that the results are

believable and meaningful.

• Provide necessary citation in the document.
• Use either ACM conference or IEEE conference proceeding template in writing the document.

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