Lab Demonstration, Week 6

Steps

1. Log into a UNIX machine.

2. Change directory to wherever you want to do CS 5631 work.

3. Give UNIX commands

       cp ~gshute/public/cs5631/scheduling.jar .
       ls
   

   The directory listing should show a file named scheduling.jar.

4. Give UNIX commands

       jar xf scheduling.jar
       ls -F
   

   The directory listing should show a directory named scheduling.

5. Give UNIX commands

       cd scheduling
       ls
   

   The directory listing should show several .java and .class files.

6. Give the UNIX command

       java SchedulerMain > out
   

7. View the out file with your favorite editor You should see a description of four scheduling runs on a set of tasks. Each of the runs uses a different scheduling algorithm, but the set of tasks is the same in all four runs.

8. Modifications:
   You can easily modify the set of tasks that are used in the scheduling runs. All you need to do is modify entries in the tasks array declared in SchedulerMain.java. A comment in the declaration shows how each task entry should look (except the last one should not have a comma after it). You can also change the time slice used in the round-robin scheduler. Just change the returned value in the method getTimeSlice() in the file RRScheduler.java. After making changes, you should recompile modified files and rerun the program.

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