优先级调度算法动态优先级_与优先级调度有关的问题及其解
决⽅案
黑镜 百度云优先级调度算法动态优先级
We are already familiar with what Priority Scheduling is. It is one of the most ud process scheduling algorithm ud in operating systems, in which every process is assigned with a priority. According to this algorithm, the process with the highest priority is t to be provided the CPU first or simply is to be executed first.
我们已经熟悉什么是优先调度。 它是操作系统中使⽤最⼴泛的进程调度算法之⼀，在该算法中，每个进程都分配了优先级。 根据该算法，将优先级最⾼的过程设置为⾸先提供给CPU或简单地⾸先执⾏。
starvation of a a process which is In priority scheduling algorithm
priority scheduling algorithm, a major problem to be considered is the starvation
ready to be executed but is waiting for the CPU becau of its low priority. This can lead to the indefinite waiting of the low-priority process. A continuous flow of higher priority process to the O.S can prevent a low priority process from ever getting the CPU.
汉语译英语饥饿 ，即由于其低优先级⽽准备执⾏但正在等待CPU的进程。 这可能导致⽆限期等待在优先级调度算法中
优先级调度算法中 ，要考虑的主要问题是进程的饥饿era
低优先级进程。 ⾼优先级进程不断流向OS可以防⽌低优先级进程获得CPU。
Let's take an example to understand what starvation
'X' has the
世间最美的坟墓阅读答案新视野大学英语4视听说教程答案第三版starvation is. Suppo there are 100 process in which a process 'X'
fcl'X' is provided CPU for the execution lowest priority becau of which it will be executed at last. Let say before the process 'X'
'X'. Now what will some more process are provided to the operating system having a priority higher than that of process 'X'philtrum
'X' won't get the chance to get executed no matter what was its arrival time. It is possible that, as the happen is, the process 'X'
'X', due to which 'X'
james cameron
'X' can wait indefinitely time pass by the O.S is given more process having higher priority than that of 'X'
埃及总统穆巴拉克
'Starvation'.
or could never be executed. This Problem is known as 'Starvation'
'X'具有最低优先级，因为它最终将被执⾏。 可以说，在为CPU提供让我们举⼀个例⼦来了解什么是饥饿
饥饿 。 假设有100个进程，其中进程'X'
“ X”的优先级。 现在将要发⽣的是，⽆论到达时间是什么，进“ X”以供执⾏之前，向操作系统提供的其他进程的优先级⾼于进程“ X”
进程“ X”
财务负责人岗位职责'X'可以⽆限期等待或⽆法执
'X'具有更⾼优先级的进程，因此'X'
“ X”都不会有执⾏的机会。 随着时间的流逝，可能会给OS提供更多⽐'X'
程“ X”
“饥饿” 。
⾏。 这个问题被称为“饥饿”
For solving the problem of starvation we have the concept of Aging. In aging what we do is increasing the priority of tho process that has been waiting long becau of low priority after some specified amount of time. Due to which after the specified time its priority is incread and could be provided with the CPU for the execution.
为了解决饥饿问题，我们有⽼龄化的概念。 在⽼化中，我们要增加由于在指定的时间量后优先级较低⽽⼀直等待很久的那些进程的优先级。 因此，在指定的时间之后，其优先级会增加，并且可以随CPU提供以执⾏该优先级。
优先级调度算法动态优先级
