0
DISPATCHER?
The dispatcher is the module that gives control of the CPU to the process selected by the short-time scheduler(selects from among the processes that are ready to execute).
The function involves :
Swithching context
Switching to user mode
Jumping to the proper location in the user program to restart that program.
SCHEDULER? Normally there are 3 types of schedulers are available in operating systems.
1. Long term scheduler
2. Mid term scheduler
3. Short term scheduler
The short term scheduler is also called as the dispatcher which selects the process from the waiting queue and allocates the CPU to that process.
Whereas the Long term scheduler (Admission scheduler) decides which process should be placed in the main memory and updates the waiting queue. This long scheduler is important in the large bound systems like super computers and may not be used frequently as the short term scheduler.
The mis term scheduler available in all systems which is responsible for the swapping in and out operations which means loading the process into, main memory from secondary memory (swap in) and take out the process from main memory and store it into the secondary memory (swap out).
Add your answer:
Earn +20 pts
What is the difference between an offer and acceptance?
difference between offer and acceptance?
What is the difference between offer and acceptance?
difference between offer and acceptance?
What is the difference between M1 and M2?
What is the difference between M1 and M2?
What is the difference between tolerance and intolerance?
there is no difference
What is the difference between tolerance and acceptance?
tell me
What is job scheduler and dispatcher?
What is job scheduler and dispatcher?
What is definition of dispatcher in Operating system?
The dispatcher in Operating System is a module that selects the process from the ready queue for allotting it the CPU (Processor). There is a switch associated during dispatching and that is the process status changes from ready to running. The dispatcher is placed in between the ready queue and Processor Scheduler (i.e. short term scheduler).Rajiv
What is the duty of a scheduler?
We differentiate between the dispatcher and the scheduler as the scheduler works on a longer time span to ensure eve workload. The dispatcher can the focus on the shorter time, see what is best suited candidate to be given a time slot, and avoid "fairness" such as attempt for monopolizing the resources. The scheduler's time interval is small enough to allow real time events, there are millions of things that can be executed for every 20th millisecond.
Explain the difference between a planner and a scheduler?
A planner is a calendar or diary with which you can roughly plan the activities which you will undergo but a scheduler is a calendar or diary that you maintain so as to plan the activities accurately on time.
What is the difference between process scheduling and CPU scheduling?
1. Job scheduler is also called long term scheduler and CPU scheduler is called short term scheduler.2. Job scheduler selects the processes from the job pool and load them in to the memory for execution. in other hand CPU scheduler selects among the processes that are in ready to execute and allocate the CPU to one of them.3. CPU scheduler is faster than the process scheduler.Read more: What_is_the_difference_between_the_job_scheduler_the_CPU_scheduler
What is scheduling and cataloging?
media planning is the process of formulating strategies and selecting the appropriate media vehicle that can be use to reach the target audience.
What is the difference between the job scheduler the CPU scheduler?
1. Job scheduler is also called long term scheduler and CPU scheduler is called short term scheduler. 2. Job scheduler selects the processes from the job pool and load them in to the memory for execution. in other hand CPU scheduler selects among the processes that are in ready to execute and allocate the CPU to one of them. 3. CPU scheduler is faster than the process scheduler.
If a bus goes 25 miles an hour for 5 hours how far will it have gone?
(25 x 5) = 125 miles I am filled with anxiety and apprehension at the thought that you may be the driver, dispatcher, or scheduler.
Is the Process Scheduler is also called the high-level scheduler?
No. The Job Scheduler is the high-level scheduler.
What are the difference between long term scheduler and medium term scheduler?
buhat mo ug assignment ..ayaw mo pagsalig dire, sa POS ni noh, isumbong tamo ni mam Trigo.hahaha SAKPAN, pero atik rah, panghatag pud mo answer hah ~abalorz bastah mao ni...... Long term scheduler determines which programs are admitted to the system for processing. It controls the degree of multiprogramming. Once admitted, a job becomes a process. Medium term scheduling is part of the swapping function. This relates to processes that are in a blocked or suspended state. They are swapped out of real-memory until they are ready to execute. The swapping-in decision is based on memory-management criteria. Short term scheduler, also know as a dispatcher executes most frequently, and makes the finest-grained decision of which process should execute next. This scheduler is invoked whenever an event occurs. It may lead to interruption of one process by preemption. ~Gi copypaste rpud nako nih.
What is the differences between the job scheduling and process scheduling?
Jobs or processes are the same. Whereas, Job scheduler and CPU scheduler are two different terms. Job scheduler is also called long term scheduler and CPU scheduler is called short term scheduler. While Job scheduler selects the processes from the job pool (Job pool is on the Hard disk) and load them in to the memory (Main Memory or RAM) for execution. in other hand CPU scheduler selects among the processes (in RAM) that are ready for execution and allocates the CPU to one of them. Hope I got it right and answered your query. Sorry for any mistakes as I'm not perfect as well. :) Cheers, KV
Which scheduler controls the degree of multiprogramming?
Long Term Scheduler
