Consider the following program: P1: { shared int x; x = 10; while (1) { } x= x - 1; x = x + 1; if (x != 10) printf("x is %d",x) P2:{ shared int x; x = 10; while (1) { X=X-1; x= x + 1; if (x!=10) } printf("x is %d",x) } } Note the scheduler in a uniprocessor system would implement pseudo-parallel execution of these two concurrent processes by interleaving their instructions, without restriction on the order of the interleaving. Show a sequence (i.e., trace the sequence of interleavings of statements) such that the statement "x is 10" is printed.

Consider the following program: P1: { shared int x; x = 10; while (1) { } x= x - 1; x = x + 1; if (x != 10) printf("x is %d",x) P2:{ shared int x; x = 10; while (1) { X=X-1; x= x + 1; if (x!=10) } printf("x is %d",x) } } Note the scheduler in a uniprocessor system would implement pseudo-parallel execution of these two concurrent processes by interleaving their instructions, without restriction on the order of the interleaving. Show a sequence (i.e., trace the sequence of interleavings of statements) such that the statement "x is 10" is printed.

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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Question

Consider the following program:
P1: {
shared int x;
x = 10;
while (1) {
}
x = x - 1;
x = x + 1;
if (x != 10)
printf("x is %d",x)
P2: {
shared int x;
x = 10;
while (1) {
x = x - 1;
x = x + 1;
if (x!=10)
}
printf("x is %d",x)
}
}
Note the scheduler in a uniprocessor system would implement pseudo-parallel execution of these
two concurrent processes by interleaving their instructions, without restriction on the order of the
interleaving.
Show a sequence (i.e., trace the sequence of interleavings of statements) such that the statement "x
is 10" is printed.

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