A CPU with interrupt-driven 1/O is busy servicing a disk request. While the CPU is midway through the disk- service routine, another I/O interrupt occurs. a) What happens next? . b) Is it a problem?! c) If not, why not? If so, what can be done about it?

A CPU with interrupt-driven 1/O is busy servicing a disk request. While the CPU is midway through the disk- service routine, another I/O interrupt occurs. a) What happens next? . b) Is it a problem?! c) If not, why not? If so, what can be done about it?

Operations Research : Applications and Algorithms

4th Edition

ISBN:9780534380588

Author:Wayne L. Winston

Publisher:Wayne L. Winston

Chapter20: Queuing Theory

Section20.10: Exponential Queues In Series And Open Queuing Networks

Problem 11P

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Parallel and Distributed Storage

A parallel storage file system is a sort of clustered file system. A clustered file system is a storage system shared by multiple devices simultaneously.

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A CPU with interrupt-driven I/O is busy servicing a disk request. While the CPU is midway through the disk-
service routine, another I/O interrupt occurs.
a) What happens next?
b) Is it a problem?!
c) If not, why not? If so, what can be done about it?

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