上海交通大学：《操作系统 Operating System》课程教学资源（课件讲稿）OS-cpuscheduling_Lec11

OPERATING SYSTEMS 1 龚玲 lgong@sjtu.edu.cn

OPERATING SYSTEMS 龚玲 lgong@sjtu.edu.cn 1

Chapter 5:CPU Scheduling o Basic Concepts o Scheduling Criteria o Scheduling Algorithms o Real-Time Scheduling o Thread Scheduling o Operating Systems Examples o Java Thread Scheduling o Algorithm Evaluation

Chapter 5: CPU Scheduling  Basic Concepts  Scheduling Criteria  Scheduling Algorithms  Real-Time Scheduling  Thread Scheduling  Operating Systems Examples  Java Thread Scheduling  Algorithm Evaluation

REVIEW o Basic Concepts o Scheduling Criteria o Scheduling Algorithms ohttp://wenku.baidu.com/course/study/77fldcccda38376ba flfae94#665ea0c7aa00b52acfc7ca94

REVIEW  Basic Concepts  Scheduling Criteria  Scheduling Algorithms  http://wenku.baidu.com/course/study/77f1dcccda38376ba f1fae94#665ea0c7aa00b52acfc7ca94

Goals for today o Real-Time Scheduling o Thread Scheduling o Operating Systems Examples o Java Thread Scheduling o Algorithm Evaluation

Goals for today  Real-Time Scheduling  Thread Scheduling  Operating Systems Examples  Java Thread Scheduling  Algorithm Evaluation

Real-Time Scheduling o Hard real-time systems-required to complete a critical task within a guaranteed amount of time o Soft real-time computing requires that critical processes receive priority over less fortunate ones

Real-Time Scheduling  Hard real-time systems – required to complete a critical task within a guaranteed amount of time  Soft real-time computing – requires that critical processes receive priority over less fortunate ones