What is a disk cache? Introduction to disk Cache setting method of thunder software

Recently, a netizen asked what does disk caching mean? The following small series will be for the vast number of computer enthusiasts to explain the computer knowledge, hope to help everyone better to understand the disk cache, and also attach the Thunderbolt disk cache How to set the method:

In fact, the disk cache is divided into two kinds, one is read cache, the other is write cache.

　　First, read cache

Read cache refers to the operating system as read file data, in the case of memory is idle in the memory space (this memory space is called "Memory Pool"), the next time the software or users read the same file again do not have to re-read from the disk, thereby increasing the speed.

　　Second, write cache

Write caching is actually the data that will be written to disk is saved in the memory space allocated by the system to the write cache, and the data is saved to the hard disk when the data is saved to the memory pool to a degree. This reduces the actual disk operation, effectively protecting the disk from duplication of read and write operations, and reduces the time it takes to write.

　　How to set the Thunderbolt disk cache and the meaning of the introduction :

The disk cache in the Thunderbolt settings is a write cache, its main function is: when the data need to write to the hard disk, the data is saved to the memory space allocated by the system to write cache, and when the saved data reaches a certain level, then save the data to the hard disk. This process reduces the time of the hard drive, avoids damage to the hard disk due to repeated read and write operations, and reduces the write time of the data.

　　Note : The higher the number of disk cache settings, the higher the memory resources, so you need to set this value according to your computer's configuration.