How win7 expands virtual memory

How win7 expands virtual memory.

Virtual memory should not be set in the system disk C disk (the system disk is the same as other disks), but should be set in other non-system partitions

Answer: Wrong! Because the C disk is the default The system disk, the hard disk read and write most frequently is the system file and page file. What is the most time-consuming operation of hard disk reading and writing? It is the head positioning! The head positioning in the same partition is undoubtedly more time-saving than the long-distance positioning across the partition! So, the virtual memory in the system disk (system default Value) is the fastest and most efficient implementation.

The optimal value of virtual memory is 1.5-3 times the memory capacity.

Answer: Wrong! It should be judged according to actual usage. Especially the popularity of large memory today. Memory usage See the task manager's memory column. Generally 512MB of memory, according to the actual memory usage, you can set the virtual memory to 256-768MB (the sum of memory + virtual memory is generally 256MB higher than the normal occupancy).

1GB memory, according to the actual memory usage, you can set the virtual memory to 128-1024MB (the sum of memory + virtual memory is generally 256-512MB higher than the normal occupancy). Usually, people who normally occupy hundreds of megabytes (most of them) can even disable virtual memory (software-limited software can set a small amount of virtual memory, such as 16-128MB).

Memory is 2G and above, you can generally disable virtual memory (software limited to a small amount of virtual memory, such as 16-128MB). Some people who do use a lot of memory, such as playing large 3D games, making large pictures, 3D modeling, etc., and receiving the system memory shortage warning, need to set the virtual memory as appropriate.

The bigger the virtual memory, the better?

Answer: Wrong. The virtual memory is too large, which wastes disk space, increases the time for head positioning, and reduces system execution efficiency without any benefit. Correct setting can save 256MB-4G space (depending on memory size)

Take win7 system as an example, computer right button, properties, advanced system settings, performance > settings, advanced, virtual memory > change, automatic management Cancel, customize size, set, OK, exit reboot.

Memory plays a big role in the computer. All running programs in the computer need to be executed through memory. If the program is large or many, the memory consumption will be exhausted. To this end, WINDOWS uses virtual memory technology, that is, take out a part of the hard disk space to serve as memory. This part of the space is called virtual memory, and the virtual memory exists on the hard disk in the form of PAGEFILE.SYS.