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FCFS
FCFS (First-Come-First-Serve) is a scheduling algorithm used in operating systems to manage the execution of multiple processes in a single multi-core CPU....
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FCFS (First-Come-First-Serve) is a scheduling algorithm used in operating systems to manage the execution of multiple processes in a single multi-core CPU....
FCFS (First-Come-First-Serve) is a scheduling algorithm used in operating systems to manage the execution of multiple processes in a single multi-core CPU.
Here's how it works:
All processes in the system are placed into a queue, with the process with the earliest arrival time (FIFO) being served first.
Each process is assigned a specific CPU time quantum, which is a fixed amount of time allocated to it on a first-come, first-served basis.
Processes in the queue are served in order of their arrival, regardless of their priority or CPU burst times.
If a process requires more time than its allotted quantum, it is placed back in the queue for future execution.
When a process finishes its allotted time quantum, it is removed from the queue and its completion is indicated.
The process with the next earliest arrival time then becomes the next process in line.
Advantages of FCFS:
Simple and easy to implement.
Provides a fair scheduling environment for all processes.
Ensures that the CPU is used efficiently, as processes are served in order of their arrival.
Disadvantages of FCFS:
Can be inefficient for systems with many processes or long jobs.
Does not take into account the priority of processes.
Can lead to starvation, where some processes are starved of CPU time