Example operating system runs.

I have modified the assignment page to include example operating system runs:

  Here are examples of successful runs of an operating system on each disk:

      $ java -cp arcsim.jar:. main os pa1-empty

      The system is halted.
      Total execution time:  10 ticks, idle time: 9 ticks (90%).

      $ java -cp arcsim.jar:. main os pa1-solo

      The system is halted.
      Total execution time:  429 ticks, idle time: 99 ticks (23%).

      $ 

  For this assignment, as long as your operating system runs correctly the
  numbers produced by your operating system don't matter. As a sanity check,
  however, the numbers produced should be within 50% of the numbers shown
  above.

  Here are the same executions with run-times included:

      $ time java -cp arcsim.jar:. main os pa1-empty

      The system is halted.
      Total execution time:  10 ticks, idle time: 9 ticks (90%).

      real    0m0.415s
      user    0m0.300s
      sys     0m0.080s

      $ time java -cp arcsim.jar:. main os pa1-solo

      The system is halted.
      Total execution time:  429 ticks, idle time: 99 ticks (23%).

      real    0m0.410s
      user    0m0.316s
      sys     0m0.076s

      $