CPU IO CPU CPU Scheduling CPU IO Page























































- Slides: 55









CPU & I/O 버스트 교환 순서 CPU 스케줄링(CPU Scheduling) CPU 버스트 시간 I/O 버스트 시간 Page 9 Operating Systems by Yang-Sae Moon





문맥 전환(Context Switch) – 제 3장 CPU 스케줄링(CPU Scheduling) dispatcher latency Page 14 Operating Systems by Yang-Sae Moon




최적화 기준(Optimization Criteria) CPU 스케줄링(CPU Scheduling) 최대화가 바람직한 기준 • CPU 사용률(CPU utilization) • 처리량(throughput) 최소화가 바람직한 기준 • 총처리 시간(turnaround time) • 대기 시간(waiting time) • 응답/반응 시간(response time) Page 18 Operating Systems by Yang-Sae Moon






FCFS 스케줄링 예제 – 참조 0 P 1 P 2 10 20 30 I/O (20) CPU (10) CPU(6) CPU(4) 10 CPU (4) I/O(24) 14 P 1 CPU(6) 50 CPU(9) I/O(17) P 2 CPU(4) 40 CPU(11) I/O(4) CPU (4) P 0 CPU(10) CPU 스케줄링(CPU Scheduling) P 2 CPU(4) 20 I/O(6) 24 30 Page 24 P 2 CPU(4) P 1 CPU(9) P 0 CPU(11) 41 50 54 Operating Systems by Yang-Sae Moon





선점 SJF 스케줄링 예제 – 참조 0 P 1 P 2 10 20 CPU(6) CPU(4) P 0 P 2 CPU(1)CPU(4) 50 CPU(9) I/O(17) P 2 CPU(4) 40 CPU(11) I/O(4) CPU (4) P 1 CPU(6) 30 I/O (20) CPU (10) CPU 스케줄링(CPU Scheduling) CPU (4) I/O(24) P 0 CPU(9) I/O(4) Page 29 P 1 CPU(9) I/O(2) P 2 CPU(4) I/O(1) P 0 CPU(11) Operating Systems by Yang-Sae Moon

비선점 SJF 스케줄링 예제 – 참조 0 P 1 P 2 10 20 CPU(6) CPU(4) P 2 CPU(4) 50 CPU(9) CPU (4) I/O(24) P 1 CPU(6) 40 CPU(11) I/O(17) I/O(4) CPU (4) P 0 CPU(10) 30 I/O (20) CPU (10) CPU 스케줄링(CPU Scheduling) P 2 CPU(4) Idle (6) Page 30 P 0 CPU(11) P 1 CPU(9) P 2 CPU(4) Operating Systems by Yang-Sae Moon


다음 CPU 버스트 길이 예측 CPU 스케줄링(CPU Scheduling) 이 예제에서, 0 = 10, = ½ 1 = x t 0 + (1 – ) x 0 = ½ x 6 + ½ x 10 = 8 2 = x t 1 + (1 – ) x 1 = ½ x 4 + ½ x 8 = 6 Page 32 Operating Systems by Yang-Sae Moon










다단계 큐 스케줄링(Multilevel Queue Scheduling) CPU 스케줄링(CPU Scheduling) (2/2) 다섯 개 큐로 구성된 사례 Page 42 Operating Systems by Yang-Sae Moon





Pthread 스케줄링 CPU 스케줄링(CPU Scheduling) 스레드 생성 시, PCS 혹은 SCS를 지정하는 API를 제공한다. • PTHREAD_SCOPE_PROCESS는 PCS 스케줄링을 사용하여 스레드들을 스케줄한다. • PTHREAD_SCOPE_SYSTEM은 SCS 스케줄링을 사용하여 스레드들을 스케줄한다. API 호출 예제 /* set the scheduling algorithm to PROCESS or SYSTEM */ pthread_attr_setscope(&attr, PTHREAD_SCOPE_SYSTEM); Page 47 Operating Systems by Yang-Sae Moon








Job scheduling vs process scheduling
Scheduling della cpu
Sjf cpu scheduling
Scheduling concepts
Cpu scheduling project
Sjf cpu scheduling
A cpu scheduling algorithm determines an order
Turnaround time in os
Sjf cpu scheduling
Cpu scheduling project
Sjf cpu scheduling
Sjf cpu scheduling
Apa formatted powerpoint presentation
Inventory management and production planning and scheduling
Disk scheduling algorithms
Amd gpu scheduling
Awg appointment scheduling
Memory access pattern
Hedera: dynamic flow scheduling for data center networks
Uniprocessor scheduling in os
Complexity of job sequencing with deadline
Script breakdown colours
Forward and backward scheduling in sap sd
Resource leveling
Scheduling objectives in os
Jit scheduling tactics
Identify critical path
Scheduling formula
Newton wellesley hospital scheduling
Adp ez manager
Finite scheduling definition
Contoh gantt chart projek
Master production schedule example
Disk scheduling
Ibms scheduling system
Manual simulation using event scheduling
Schedule project management
Scheduling-verfahren vor und nachteile
Time sharing
Stcf scheduling
Linux scheduling classes
Disk scheduling in operating system
Solaris scheduling
Aggregate planning and master scheduling
Scheduling in high-volume systems is known by what term?
Semi persistent scheduling
Advantages of dynamic programming
Semi-persistent scheduling
Classification of scheduling
Forward scheduling in sap sd
Parallel block scheduling for elementary schools
Scheduling is only available with lifetime budgets
8 specialized subjects in the strand of humss
Mobile workforce optimisation
Disk scheduling
Preemptive scheduling incurs greater overhead.