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Three processes A, B and C each execute a loop of 100 iterations. In each iteration of the loop, a process performs a single computation that requires tc CPU milliseconds and then initiates a single I/O operation that lasts for tio milliseconds. It is assumed that the computer where the processes execute has sufficient number of I/O devices and the OS of the computer assigns different I/O devices to each process. Also, the scheduling overhead of the OS is negligible. The processes have the following characteristics:
Process id                                         tc                        tio
A                                                       100 ms                500 ms
B                                                        350 ms               500 ms
C                                                        200 ms               500 ms
 
Q. The processes A, B, and C are started at times 0, 5 and 10 milliseconds respectively, in a pure time sharing system (round robin scheduling) that uses a time slice of 50 milliseconds. The time in milliseconds at which process C would complete its first I/O operation is ___________.
  • a)
    500
  • b)
    1000
  • c)
    2000
  • d)
    10000
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Three processes A, B and C each execute a loop of 100 iterations. In e...
There are three processes A, B and C that run in round robin manner with time slice of 50 ms.
Processes atart at 0, 5 and 10 miliseconds.
The processes are executed in below order
A, B, C, A
50 + 50 + 50 + 50 (200 ms passed)
Now A has completed 100 ms of computations and goes for I/O now
B, C, B, C, B, C
50 + 50 + 50 + 50 + 50 + 50 (300 ms passed)
C goes for i/o at 500ms and it needs 500ms to finish the IO.
So C would complete its first IO at 1000 ms
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Three processes A, B and C each execute a loop of 100 iterations. In each iteration of the loop, a process performs a single computation that requires tc CPU milliseconds and then initiates a single I/O operation that lasts for tio milliseconds. It is assumed that the computer where the processes execute has sufficient number of I/O devices and the OS of the computer assigns different I/O devices to each process. Also, the scheduling overhead of the OS is negligible. The processes have the following characteristics:Process id tc tioA 100 ms 500 msB 350 ms 500 msC 200 ms 500 msQ.The processes A, B, and C are started at times 0, 5 and 10 milliseconds respectively, in a pure time sharing system (round robin scheduling) that uses a time slice of 50 milliseconds. The time in milliseconds at which process C would complete its first I/O operation is ___________.a)500b)1000c)2000d)10000Correct answer is option 'B'. Can you explain this answer?
Question Description
Three processes A, B and C each execute a loop of 100 iterations. In each iteration of the loop, a process performs a single computation that requires tc CPU milliseconds and then initiates a single I/O operation that lasts for tio milliseconds. It is assumed that the computer where the processes execute has sufficient number of I/O devices and the OS of the computer assigns different I/O devices to each process. Also, the scheduling overhead of the OS is negligible. The processes have the following characteristics:Process id tc tioA 100 ms 500 msB 350 ms 500 msC 200 ms 500 msQ.The processes A, B, and C are started at times 0, 5 and 10 milliseconds respectively, in a pure time sharing system (round robin scheduling) that uses a time slice of 50 milliseconds. The time in milliseconds at which process C would complete its first I/O operation is ___________.a)500b)1000c)2000d)10000Correct answer is option 'B'. Can you explain this answer? for Computer Science Engineering (CSE) 2024 is part of Computer Science Engineering (CSE) preparation. The Question and answers have been prepared according to the Computer Science Engineering (CSE) exam syllabus. Information about Three processes A, B and C each execute a loop of 100 iterations. In each iteration of the loop, a process performs a single computation that requires tc CPU milliseconds and then initiates a single I/O operation that lasts for tio milliseconds. It is assumed that the computer where the processes execute has sufficient number of I/O devices and the OS of the computer assigns different I/O devices to each process. Also, the scheduling overhead of the OS is negligible. The processes have the following characteristics:Process id tc tioA 100 ms 500 msB 350 ms 500 msC 200 ms 500 msQ.The processes A, B, and C are started at times 0, 5 and 10 milliseconds respectively, in a pure time sharing system (round robin scheduling) that uses a time slice of 50 milliseconds. The time in milliseconds at which process C would complete its first I/O operation is ___________.a)500b)1000c)2000d)10000Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Computer Science Engineering (CSE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Three processes A, B and C each execute a loop of 100 iterations. In each iteration of the loop, a process performs a single computation that requires tc CPU milliseconds and then initiates a single I/O operation that lasts for tio milliseconds. It is assumed that the computer where the processes execute has sufficient number of I/O devices and the OS of the computer assigns different I/O devices to each process. Also, the scheduling overhead of the OS is negligible. The processes have the following characteristics:Process id tc tioA 100 ms 500 msB 350 ms 500 msC 200 ms 500 msQ.The processes A, B, and C are started at times 0, 5 and 10 milliseconds respectively, in a pure time sharing system (round robin scheduling) that uses a time slice of 50 milliseconds. The time in milliseconds at which process C would complete its first I/O operation is ___________.a)500b)1000c)2000d)10000Correct answer is option 'B'. Can you explain this answer?.
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