📜  操作系统中分页和交换的区别

📅  最后修改于: 2021-09-28 10:55:56             🧑  作者: Mango

交换:
交换是将进程从主存储器临时交换到辅助存储器的过程,与辅助存储器相比,速度更快。但由于 RAM 较小,因此不活动的进程将转移到辅助存储器。交换的主要部分是传输时间,总时间与交换的内存量成正比。

分页:
分页是内存分配的过程,其中不同的非连续内存块被分配固定大小。大小一般为4KB。分页总是在活动页面之间执行。

分页和交换的区别:

Swapping Paging
It is procedure of copying out the entire process. It is a technique of memory allocation.
Swapping occurs when whole process is transferred to disk. Paging occurs when some part of process is transferres to disk.
In this process is swapped temporarily from main memory to secondary memory. In this the contiguous block of memory is made non-contiguous but of fixed size called frame or pages.
Swapping can be performed without any memory management. Non-contiguous Memory Management.
Swapping is done by inactive processes. Only active process can perform paging.
It provides the direction regarding the solution. No suggestion is given regarding the solution in it.