0
#include<stdio.h>
#include<conio.h>
int main()
{
char p[10][5],temp[5];
int i,j,pt[10],wt[10],totwt=0,pr[10],temp1,n;
float avgwt;
clrscr();
printf("enter no of processes:");
scanf("%d",&n);
for(i=0;i<n;i++)
{
printf("enter process%d name:",i+1);
scanf("%s",&p[i]);
printf("enter process time:");
scanf("%d",&pt[i]);
printf("enter priority:");
scanf("%d",&pr[i]);
}
for(i=0;i<n-1;i++)
{
for(j=i+1;j<n;j++)
{
if(pr[i]>pr[j])
{
temp1=pr[i];
pr[i]=pr[j];
pr[j]=temp1;
temp1=pt[i];
pt[i]=pt[j];
pt[j]=temp1;
strcpy(temp,p[i]);
strcpy(p[i],p[j]);
strcpy(p[j],temp);
}
}
}
wt[0]=0;
for(i=1;i<n;i++)
{
wt[i]=wt[i-1]+et[i-1];
totwt=totwt+wt[i];
}
avgwt=(float)totwt/n;
printf("p_name\t p_time\t priority\t w_time\n");
for(i=0;i<n;i++)
{
printf(" %s\t %d\t %d\t %d\n" ,p[i],pt[i],pr[i],wt[i]);
}
printf("total waiting time=%d\n avg waiting time=%f",tot,avg);
getch();
}
What else can I help you with?
Source code for multilevel queue program in c plus plus?
Here’s a simple implementation of a multilevel queue scheduling program in C++. In this program, processes are categorized into three different queues based on their priority. #include <iostream> #include <queue> #include <string> struct Process { int id; int priority; // Lower number indicates higher priority }; int main() { std::queue<Process> high, medium, low; // Example: Adding processes to queues high.push({1, 1}); medium.push({2, 2}); low.push({3, 3}); // Scheduling processes based on priority while (!high.empty() || !medium.empty() || !low.empty()) { if (!high.empty()) { std::cout << "Processing high priority: " << high.front().id << std::endl; high.pop(); } else if (!medium.empty()) { std::cout << "Processing medium priority: " << medium.front().id << std::endl; medium.pop(); } else if (!low.empty()) { std::cout << "Processing low priority: " << low.front().id << std::endl; low.pop(); } } return 0; } You can expand this program by adding more features such as user input for processes, time quantums, or different scheduling algorithms.
what are advantages and disadvantages of Round Robin scheduling algorithm?
Pure round robin scheduling processes A, then B, then C, then starts at A again. (A, B, C might be tasks in an operating system context, or devices in a master/slave control network, or whatever.) That is, pure round robin scheduling doesn't acknowledge priorities, and does not allow out-of-order processing. Real-life systems typically use a mixture of algorithms that, together, allow for prioritized and out-of-order processing while, on the other hand, trying to prevent starvation of lower priority items.
Process control block in c plus plus code?
A Process Control Block (PCB) in C++ is a data structure used by the operating system to store all the information about a process. It typically contains details such as the process ID, process state, CPU registers, memory management information, and scheduling information. In C++, you can define a PCB using a struct or class, encapsulating these attributes. For example: struct ProcessControlBlock { int processID; std::string processState; // Additional fields like CPU registers, priority, etc. };
What are the role played by parenthesis in an expression in C language?
Parenthesis will affect the order of execution priority of statements. Expressions within parenthesis assume highest priority.
Array implementation of priority queue example program in c plus plus?
yes
Preemptive priority task scheduling C code?
Preemptive priority task scheduling allows higher-priority tasks to interrupt lower-priority ones. In C, you can implement this using a priority queue to manage tasks based on their priority levels. Below is a simple example using a struct for tasks and a basic loop to simulate scheduling: #include <stdio.h> #include <stdlib.h> typedef struct Task { int id; int priority; } Task; void schedule(Task tasks[], int n) { // Simple scheduling loop for (int i = 0; i < n; i++) { // Here you would implement preemption logic // For example, sort tasks based on priority and execute the highest priority task printf("Executing Task %d with priority %d\n", tasks[i].id, tasks[i].priority); } } int main() { Task tasks[] = {{1, 2}, {2, 1}, {3, 3}}; int n = sizeof(tasks) / sizeof(tasks[0]); schedule(tasks, n); return 0; } This code is a simplified example; a complete implementation would require more sophisticated handling of task states and preemption logic.
What is the difference between conventional C and embedd C?
Advantages: - Priority based premptive scheduling -multitasking -multithreading -better response time -valuable services like senaphore,mailbox,queues etc. Disadvantages: -expensive Advantages: - Priority based premptive scheduling -multitasking -multithreading -better response time -valuable services like senaphore,mailbox,queues etc. Disadvantages: -expensive
Source code for multilevel queue program in c plus plus?
Here’s a simple implementation of a multilevel queue scheduling program in C++. In this program, processes are categorized into three different queues based on their priority. #include <iostream> #include <queue> #include <string> struct Process { int id; int priority; // Lower number indicates higher priority }; int main() { std::queue<Process> high, medium, low; // Example: Adding processes to queues high.push({1, 1}); medium.push({2, 2}); low.push({3, 3}); // Scheduling processes based on priority while (!high.empty() || !medium.empty() || !low.empty()) { if (!high.empty()) { std::cout << "Processing high priority: " << high.front().id << std::endl; high.pop(); } else if (!medium.empty()) { std::cout << "Processing medium priority: " << medium.front().id << std::endl; medium.pop(); } else if (!low.empty()) { std::cout << "Processing low priority: " << low.front().id << std::endl; low.pop(); } } return 0; } You can expand this program by adding more features such as user input for processes, time quantums, or different scheduling algorithms.
What is disk scheduling in operating system?
why we use disk scheduling in c ?
What has the author Don C Adams written?
Don C. Adams has written: 'Block scheduling' -- subject(s): Block scheduling (Education)
What is priority inversion?
Priority inversion is a situation where in lower priority tasks will run blocking higher priority tasks waiting for resource (mutex). For ex: consider 3 tasks. A, B and C, A being highest priority task and C is lowest. Look at sequence of context swaps A goes for I/O . unlocks mutex. C was ready to run. So C starts running. locks mutex B is ready to run. Swaps out C and takes mutex. A is ready to run. but A is blocked as mutex is locked by B. but B will never relinqishes the mutex as its higher priority than C. The solution to priority inversion is Priority inheritance.
What are the disadvantages of RoundRobin Scheduling?
Pure round robin scheduling processes A, then B, then C, then starts at A again. (A, B, C might be tasks in an operating system context, or devices in a master/slave control network, or whatever.) That is, pure round robin scheduling doesn't acknowledge priorities, and does not allow out-of-order processing. Real-life systems typically use a mixture of algorithms that, together, allow for prioritized and out-of-order processing while, on the other hand, trying to prevent starvation of lower priority items.
what are advantages and disadvantages of Round Robin scheduling algorithm?
Pure round robin scheduling processes A, then B, then C, then starts at A again. (A, B, C might be tasks in an operating system context, or devices in a master/slave control network, or whatever.) That is, pure round robin scheduling doesn't acknowledge priorities, and does not allow out-of-order processing. Real-life systems typically use a mixture of algorithms that, together, allow for prioritized and out-of-order processing while, on the other hand, trying to prevent starvation of lower priority items.
Process control block in c plus plus code?
A Process Control Block (PCB) in C++ is a data structure used by the operating system to store all the information about a process. It typically contains details such as the process ID, process state, CPU registers, memory management information, and scheduling information. In C++, you can define a PCB using a struct or class, encapsulating these attributes. For example: struct ProcessControlBlock { int processID; std::string processState; // Additional fields like CPU registers, priority, etc. };
What has the author J C Thorpe written?
J. C. Thorpe has written: 'A comparison of vehicle scheduling methods'
What has the author Steven C Kleiner written?
Steven C. Kleiner has written: 'Distribution of a generic mission planning and scheduling toolkit for astronomical spacecraft' -- subject(s): Scheduling, Mission planning, Spaceborne astronomy, Launch vehicles
Is C plus plus preprocessor software?
Sometimes, it is. Some implementations compile C++ code into C code, and then compile the C code.
