4) Given the following code we studied in the class about nice system call #include main(){ int i=0; int prior; prior=getpriority(PRIO_PROCESS,getpid(); printf("%d\n",prior); for (i=0;i<1000000000;i++); nice(19); int priori; prioti=getpriority(PRIO_PROCESS,getpid()); printf(" %d\n",priori); for (i=0;i<1000000000;i++); a. Fill the blanks: The output of the program will be (_ b. Choose the bestanswer: Calling the nice system call, will cause the process to take ) and (_ i. Longer time to finish ii. Shorter time to finish iii. Time to finish will not change iv. no relation between calling nice system call and time to finish
4) Given the following code we studied in the class about nice system call #include main(){ int i=0; int prior; prior=getpriority(PRIO_PROCESS,getpid(); printf("%d\n",prior); for (i=0;i<1000000000;i++); nice(19); int priori; prioti=getpriority(PRIO_PROCESS,getpid()); printf(" %d\n",priori); for (i=0;i<1000000000;i++); a. Fill the blanks: The output of the program will be (_ b. Choose the bestanswer: Calling the nice system call, will cause the process to take ) and (_ i. Longer time to finish ii. Shorter time to finish iii. Time to finish will not change iv. no relation between calling nice system call and time to finish
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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4q
Transcribed Image Text:4) Given the following code we studied in the class about nice system call
#include<sys/resource.h>
main(){
int i=0;
int prior;
prior=getpriority(PRIO_PROCESS,getpid());
printf("%d\n",prior);
for (i=0;i<1000000000;i++);
nice(19);
int priori;
prioti=getpriority(PRIO_PROCESS,getpid());
printf(" %d\n",priori);
for (i=0;i<1000000000;i++);
a. Fill the blanks: The output of the program will be ( ) and (_
b. Choose the best answer: Calling the nice system call, will cause the process to take
i. Longer time to finish
ii. Shorter time to finish
iii. Time to finish will not change
iv. no relation between calling nice system call and time to finish
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