Description: The VFS (Virtual File System) cache is a mechanism designed to improve file access performance in operating systems. This cache acts as an intermediary between file access requests and the underlying file system, temporarily storing frequently used data in memory. By doing so, it reduces the need for repeated access to the hard drive, which can be a slow and costly process in terms of time. The VFS cache allows read and write operations to be performed more efficiently, speeding up system response times and optimizing resource usage. Additionally, this technique is particularly useful in environments where large volumes of data are handled or where access speed is critical, such as in database servers or distributed file systems. The implementation of the VFS cache is based on algorithms that determine which data should be stored in memory, ensuring that the most relevant information is always available for quick access. In summary, the VFS cache is an essential tool for enhancing the efficiency and performance of file systems, allowing for more agile data access and optimizing user experience.