Ramdisk-memory virtual hard disk

[From Baidu encyclopedia]

Memory Virtual Disk (ramdisk) refers to the use of software technology to split the physical memory, part of the memory is converted into a hard disk through virtual technology to greatly improve the speed of reading computer data and protect the hard disk.

[Technical advantages]

1. for computer systems, the read speed of the memory is about 20 times that of the hard disk. Using the memory virtual hard disk can quickly and effectively increase the data access speed.

2. Traditional mechanical hard disks may experience bad channels after long-term read/write operations. During use, large amounts of duplicate read/write data are required for IE cache files and system cache files, if you use it for a long time, the hard disk will be damaged. Memory does not have such risks.

3. Currently, due to the impact of software compatibility, 32-bit systems will remain the mainstream for a period of time in the future. For 32-bit systems, the maximum effective memory capacity is 3.25 GB, and the excess capacity is invalid. With the development of memory technology, a large amount of user memory exceeds the upper limit of GB, resulting in a waste of resources. Instead, ramdisk can properly use this part of memory capacity.

 

In recent years, the performance of computer CPU, memory, graphics card, and other major accessories has improved rapidly, in contrast, the system performance of disks is becoming more and more serious as the bottleneck for improving the performance of the entire computer system. Although the disk technology has also evolved from the previous ata33 to today's ata66/ata100/ata133. However, this still cannot completely solve the disk bottleneck, especially when running programs that require high data access speeds, such as digital image processing or loading texture data in 3D games, due to the speed of disk access, the screen may often be delayed or paused. Fortunately, a technology called ramdisk (RAM driver) that can be applied on the PC platform came into being, solving the pressing issue of computer players ". The so-called RAM drive actually uses a part of the system memory as a hard disk.

 

Ramdisk is very fast, probably 30 times the fastest speed of 7200 to hard disk. It should be noted that once the "Hard Disk" is shut down, all the information above will be lost. Important things must be copied to the hard disk before shutdown. Because ramdisk has the above features, it is particularly suitable for storing temporary files. Next we will set the temporary file in Windows to ramdisk. Right-click my computer and select Properties from the menu. In the pop-up "system features", select the "advanced" tab and click "environment variables". In the dialog box, set the values of the variables "Temp" and "tmp" as shown in. In this way, all the temporary files in the system are stored in ramdisk, and it is much faster to decompress the files. We can also set the temporary IE File to ramdisk in "Internet properties. After this setting, you will find that the decompression and surfing speed is much faster.

 

Ramdisk Plus, which is used to divide a part of the memory into a disk partition. You can transfer some temporary folders to this partition, such as the temporary folder of IE, this will greatly speed up your web browsing. The gap between the memory transmission speed and the hard disk transmission speed is clear to everyone. Using a portion of the memory as the hard disk is equivalent to adding a hard disk of several hundred to 100,000 rpm, and the speed improvement can be imagined. This is my personal experience. I used MB of my memory as a partition, and then moved the temporary ie folder to it. After restarting, it was just a moment to open the webpage, in the past, even in the middle of the night, the network speed was not so fast. It seems that many times the network speed is not a bottleneck, but the machine is a bottleneck, especially those webpages with many images that need to be cached, you can try it. After setting out the MB memory, I still keep the normal available memory above MB, and there is still a lot of space. Fortunately, ramdisk plus can add multiple partitions, I can partition a few more partitions and put some common programs in it. It will certainly be much faster to run.