a) Assume that you are trying to download a large 2-GB file from the Internet. The file is available from a set of mirror servers, each of which can deliver a subset of the file's bytes; assume that a given request specifies the starting and ending bytes of the file. Explain how you might use threads to improve the download time. b) Does Peterson's solution to the mutual-exclusion problem shown in Fig. 2-24 (see attached pic) of MOS4e work when process scheduling is preemptive? How about when it is nonpreemptive? c) The producer-consumer problem can be extended to a system with multiple producers and consumers that write (or read) to (from) one shared buffer. Assume that each producer and consumer runs in its own thread. Will the solution presented in Fig. 2-28 (see attached pic) of MOS4e, using semaphores, work for this system?
a) Assume that you are trying to download a large 2-GB file from the Internet. The file is available from a set of mirror servers, each of which can deliver a subset of the file's bytes; assume that a given request specifies the starting and ending bytes of the file. Explain how you might use threads to improve the download time. b) Does Peterson's solution to the mutual-exclusion problem shown in Fig. 2-24 (see attached pic) of MOS4e work when process scheduling is preemptive? How about when it is nonpreemptive? c) The producer-consumer problem can be extended to a system with multiple producers and consumers that write (or read) to (from) one shared buffer. Assume that each producer and consumer runs in its own thread. Will the solution presented in Fig. 2-28 (see attached pic) of MOS4e, using semaphores, work for this system?
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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