Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

Homework (Simulation) This program, process-run.py, allows you to see how process states change as programs run and either use the CPU (e.g., perform an add

image text in transcribed
image text in transcribed
image text in transcribed
Homework (Simulation) This program, process-run.py, allows you to see how process states change as programs run and either use the CPU (e.g., perform an add instruction) or do I/O (e.g., send a request to a disk and wait for it to complete). See the README for details Questions 1. Run process-run.py with the following flags:-1 5:100,5:100. What should the CPU utilization be (e.g, the percent of time the CPU is in use?) Why do you know this? Use the -c and -p flags to see if you were right. 2. Now run with these flags: ./process-run.py -1 4:100,1:0. These flags specify one process with 4 instructions (all to use the CPU), and one that simply issues an I/O and waits for it to be done. How long does it take to complete both processes? Use -c and -p to find out if you were right 3. Switch the order of the processes: ./process-run.py -1 1:0,4:100. What happens now? Does switching the order matter? Why? (As always use -c and -p to see if you were right) 4. We'll now explore some of the other flags. One important flag is-s, which determines how the system reacts when a process issues an I/O. With the flag set to SWITCH.ON END, the system will NOT switch to another pro- cess while one is doing I/O, instead waiting until the process is completely finished. What happens when you run the following two processes (-1 1:0,4:100-c- SWITCH.ON END), one doing I/O and the other doing CPU work? 5. Now, run the same processes, but with the switching behavior set to switch to another process whenever one is WAITING for I/O (-1 1:0,4:100 -c -S SWITCH ON IO). What happens now? Use -c and -p to confirm that you are right

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Oracle Database 11g SQL

Authors: Jason Price

1st Edition

0071498508, 978-0071498500

More Books

Students also viewed these Databases questions

Question

Provide examples of Dimensional Tables.

Answered: 1 week ago