swap acronym

Tags: sysctl efficiency int two times mechanism HDD technology share buffers addToday we will talk about the memory mechanism of Linux.First, let's take a look at the conceptFirst, what is the memory mechanism of Linux?We know that reading and writing data directly from physical memory is much faster than reading and writing data from a hard disk, so we want all of the data read and written to be done in memory, and memory is limited, which leads to the concept of physical and virtual memory.Phy

There is only one way to pass the parameters of a method in Java: Value passing. The value is passed by passing a copy of the actual parameter value (the replica) into the method, and the parameter itself is unaffected.public class Primitivetransfertest{public static void swap (int a,int b){int temp=a;A=b;B=temp;System.out.println ("The value of a in the swap method is" +a+ "; the value of B is" +b ");}publ

When I installed ubuntu12.04LTS in Ubuntu12.04, due to the disk partition problem, I did not set the SWAP partition during installation. later, when I was using it, sometimes the system was not running smoothly, it seems that SWAP partitions are still needed. Www.2cto. com1 .... when I installed Ubuntu 12.04 LTS for SWAP settings in ubuntu 12.04, I did not set

Swap is the memory swap area; in other words, if the memory is not enough, then the system will store some infrequently used data on the hard disk, then this part of the data in the storage to be broken down, so that the memory of the remaining space to run the east, this process is called exchange, The part of the hard disk that stores the data is the swap parti

IntroductionIn my last blog, I spoke about the swap function.The swap is only part of the STL and then becomes the spine of an unusually safe program, and is used to handle the possibility of self-assignment.One, swap functionThe swap function of the standard library is as follows:1 namespace STD {2 template3 v

Wow, it's been a long time since it's been updated, let's talk about Linux's memory mechanism today.First, let's take a look at the conceptFirst, what is the memory mechanism of Linux?We know that reading and writing data directly from physical memory is much faster than reading and writing data from a hard disk, so we want all of the data read and written to be done in memory, and memory is limited, which leads to the concept of physical and virtual memory.Physical memory is the amount of memor

Understand what a swap partition is Swap is a virtual memory partition under Linux, his main role is that when physical memory is not enough, it is necessary to release some of the space in physical memory, so that the current program to use, these memory freed space has no operational procedures, these freed memory will be saved into the swap space, Wait until

Wow, it's been a long time since it's been updated, let's talk about Linux's memory mechanism today.First, let's take a look at the conceptFirst, what is the memory mechanism of Linux?We know that reading and writing data directly from physical memory is much faster than reading and writing data from a hard disk, so we want all of the data read and written to be done in memory, and memory is limited, which leads to the concept of physical and virtual memory.Physical memory is the amount of memor