Facts | Virtual PC memory




Virtual memory is a critical component of most operating systems. Its main task is to expand the capabilities of your computer, without increasing its price. With caching principles of our readers are already familiar. And now we have to consider one of the most common applications of this important technology. No matter how large the amount of memory (RAM, RAM), can always come a situation where it is not enough to put it all running programs and open their files.

Why do I need a swap file?

How does it work and what is memory, we already know. Again, for example to look at the history of the narrative: a little over a decade ago, an ordinary computer is only 32 or 64 megabytes of memory. It is incredibly small by today’s standards. Nowadays, computer RAM is measured in gigabytes. But the demands have increased.

So, imagine an old computer with 32 megabytes of RAM. Usually, such a machine is required to simultaneously open email program, web browser and text editor. Memory is not enough. And if it did not come to the aid of virtual memory, the computer would say its user something like: “Sorry, but you can no longer open any application. Please close any applications to be able to download a new one. “Rather, it is said to be the operating system, not the computer itself. But virtual memory is up and looking into the RAM area, which are not used at the moment to move them to the hard disk. This frees up space in RAM needed by the user to the next program.

Copying is done automatically and you do not even know what a computer is doing some important work. To the user it looks like an almost unlimited memory, despite the modest 32MB of physical RAM. Because hard drives are much cheaper memory modules (per unit of stored information), it leads to considerable savings.

As in every “barrel technological honey”, there is also “fly in the ointment.” The speed of reading and writing the hard disk is greatly inferior to memory. Furthermore, hard drives do not provide access to smaller data segments. What does this mean for the average user? If your computer uses virtual memory tightly, he will feel a significant reduction in device performance. Way out of this difficult situation, only one: to increase the amount of physical memory to a level that under normal load placed everything you need there. In this case, the slowdown will be felt only with a load that exceeds the normal conditions of use of this machine.

If the RAM is not enough, the operating system will be constantly moving data between RAM and hard disk. That the user will feel? So-called “slip”, the computer will run extremely slowly.

Area of ​​the hard disk that stores the RAM image is called a paging file. In English «page file» («page file”). It is possible that you happen to meet his other colloquial names: “swap file” or “swap file» («swap file»). This file contains pages in memory. The operating system moves data between the paging file and memory in both directions.

And a little “tehnololingvistiki.” In English, the process of using your hard disk to store data in memory is often called «paging» («peydzhirovanie”).
Setting up the virtual memory in Windows 8

These days, of course, a computer with 32 megabytes of RAM to meet the challenge. But many people today have a relatively low-powered machines with RAM to 4 GB. These systems may require the maximum file size. Of course, customize the system can only experienced users, who understand what they do and are fully aware that they have introduced changes affect the operation of your computer. If you are not sure that the settings get “back in place”, it is better not to do anything.

For this it is necessary to implement a number of simple settings:

Right-click on the icon “Computer” desktop operating system

Open the options in the advanced system settings

In the tab that allows to program the advanced settings, click performance tuning

Of performance settings, select Advanced

To display the Virtual Memory dialog box, in the performance of the advanced settings, click the implementation of changes

In the setting of virtual memory you will find the current settings configuration. The total size of the paging file indicates the recommended amount of virtual “memory” for the system. There’s also displays the amount of virtual memory that is currently set

By default, the Windows 8 controls the size of the paging file for all drives. If you want to manually configure virtual memory, remove the “bird” automatic control file size for all drives
Then, select the option of specifying an arbitrary size and set two parameters: the initial and maximum paging file
After changing these parameters, the system will prompt to reboot. Press the “OK” button can be used only if you are sure that you want to make the changes

According to the materials computer.
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