What is virtual memory
By Lian Guss 2020-01-07 1959 282
For virtual memory, there are two main settings, namely, the memory size and the paging location, the memory size is to set the minimum and maximum virtual memory, and the paging location is to set the virtual memory to use the hard disk space in that partition. For the setting of memory size, how do you get the minimum and maximum values? You can open the system Monitor by selecting start programs attachments system tools system Monitor (if it is not in the system tools, you can install it through the Windows installer in add / remove programs), then select Edit add items, select memory Manager in the Type item, and select swap File size in the list on the right. In this way, with the operation, the fluctuation of the exchange file value will be displayed. You can open the frequently used program and then use it. At this time, check the performance value in the system monitor. Because the situation is different each time the user uses the computer, it is best to monitor the exchange file for a long time to find out the value that best matches your exchange file. Only in this way can we ensure the stable performance of the system and keep it in the best state.
After finding out the most appropriate range value, when setting up virtual memory, click "my computer" with the right mouse button, select "Properties", pop-up system properties window, select "performance" tab, click the "virtual memory" button below, pop up the virtual memory settings window, click the "user-specified virtual memory settings" radio button, and "hard disk" select the partition with larger remaining space. Then enter the appropriate range values in the minimum and maximum text boxes. If you find it troublesome to use the system monitor to get the maximum and minimum values, you can choose "Let Windows manage virtual memory settings" here. The virtual memory paging location of
Windows 9x is actually a virtual memory file (also known as swap file) stored in the root directory of C disk. The Win386.swp, storage location can be any partition. If the system disk C capacity is limited, you can transfer the Win386.swp to another partition by opening the System.ini (C:\ Windows) file in notepad and "PagingDrive=C:WindowsWin386.swp" in the [386Enh] section. Change to the path of other partitions, such as putting the swap file in D:, then change to "PagingDrive=D:Win386.swp". If you don't have the above statement, you can type it directly.
For those who use Windows 2000 and Windows XP, you can select Settings Advanced changes in the Control Panel system Advanced performance to open the virtual memory settings window. The partition where the system is located is selected by default in the drive [volume label]. If you want to change it to another partition, you should first set the original partition to no paging file, and then select another partition.
If the hard disk space is large enough, you can also set up your own virtual memory, the specific steps are as follows: right-click my computer Properties Advanced performance Settings Advanced Virtual memory changes Select the partition stored in virtual memory (page file) Custom size determine maximum and minimum setting. In general, virtual memory is 1.5 times larger than physical memory, and if you don't want virtual memory to change frequently, you can set the maximum and minimum values to the same.
Set up the page file in the partition where the Windows system is located, and the size of the file is determined by the setting of the system. The specific setting method is as follows: open the "my computer" Properties setting window, switch to the "Advanced" tab, in the "start and failure recovery" window, "write debugging information" bar, if you use "none", then set the page file size to about 2MB, if you use "Core memory Storage" and "full memory Storage", then set the page file value to a little larger. It's about the same as physical memory.
Tip: for the system partition whether to set up the page file, there is a contradiction: if set, the system may read this part of the page file frequently, thus increasing the load on the track where the system disk is located, but if not set, when the system has a blue screen crash (especially STOP error), a dump file (Memory.dmp) cannot be created, thus unable to debug the program and report the error. So the compromise is to set up a smaller page file on the system disk, as long as it is enough.
Create a separate blank partition and set up virtual memory in this partition. The minimum value is set to 1.5 times the physical memory, and the maximum value is set to 3 times the physical memory. This partition is specially used to store page files. Do not store any other files. The reason why a separate partition is used to set up virtual memory is mainly based on two considerations: first, because there are no other files on the partition, so the partition will not produce disk fragments, which ensures that the data reading and writing of the page file will not be disturbed by disk fragments; second, according to Windows's memory management technology, Windows will give priority to the use of infrequently accessed partitions.
Other hard disk partitions do not set any page files. Of course, if you have multiple hard drives, you can create a page file for each hard disk. When the information is distributed on multiple page files, the hard disk controller can perform read and write operations on multiple hard disks at the same time. In this way, the performance of the system will be improved.
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