Simulate the following disk scheduling algorithms SSTF

 #include<stdio.h> 
#include<conio.h> 
void main() 

 int n,i,queue[30],visit[30],head,j,min,seek=0,pos; 
 printf("enter number of queue elements : "); 
 scanf("%d",&n); 
 printf("enter the work queue : "); 
 for(i=0;i<n;i++) 
 { 
 scanf("%d",&queue[i]); 
 visit[i]=0; 
 } 
 printf("enter the disk head starting position : "); 
 scanf("%d",&head); 
 for(i=0;i<n;i++) 
 { 
 min=999; 
 for(j=0;j<n;j++) 
 { 
 if(visit[j]==0) 
 { 
 if(min>abs(head-queue[j])) 
 { 
 min=abs(head-queue[j]); 
 pos=j; 
 } 
 } 
 } 
 visit[pos]=1; 
 
 head=queue[pos]; 
 seek=seek+min; 
 } 
 printf("total seek time : %d\n",seek); 
 

x

Comments

Popular posts from this blog

CLOOK DISK SCHEDULING

LOOK Disk Scheduling