proportional-sahre is a different type of scheduler
其中的一个例子是抽签策略 lottery scheduling
lottery scheduling 决定下一个运行的job , 长时间没有抽中的job 增加优先级
Tickets represent the share of a resource that a process (or user or whatever) should receive
Tickets has number
- ticket currency Currency allows a user with a set of tickets to allocate tickets among their own jobs in whatever currency they would like; the system then automatically converts said currency into the correct global value.
- ticket transfer A process can temporarily hand off its tickets to another process
- ticket inflation A process can temporarily raise or lower the number of tickets it owns