Abstract: A method of operating an electronic device and the electronic device are provided. The method includes mounting at least one lower file system, which is configured to generate a file object managing a page cache, and mounting a highest file system, to which a virtual file system directly accesses, at a higher layer of a layer corresponding to the lower file system; in response to a file mapping request of a software program, generating a virtual memory area including a virtual address for a file corresponding to the file mapping request; and generating a first virtual address link between a file object of at least one lower file system having a page cache of a file corresponding to the file mapping request and the virtual memory area.

Abstract: An electronic device is provided. The electronic device includes at least one first memory being nonvolatile and a processor configured to read a file from the first memory or to write a file on the first memory. The first memory stores instructions, the instructions, when executed, causing the processor to provide a software layer structure including a first virtual file system layer configured to interface with an application program layer, a compressed file system layer configured to compress at least a part of data of the written file or to decompress at least a part of data of the read file, a second virtual file system layer configured to manage the written or read file, and a first file system layer configured to read at least a part of the file from the first memory or to write at least a part of the file on the first memory.

Abstract: A method of operating an electronic device and the electronic device are provided. The method includes mounting at least one lower file system, which is configured to generate a file object managing a page cache, and mounting a highest file system, to which a virtual file system directly accesses, at a higher layer of a layer corresponding to the lower file system; in response to a file mapping request of a software program, generating a virtual memory area including a virtual address for a file corresponding to the file mapping request; and generating a first virtual address link between a file object of at least one lower file system having a page cache of a file corresponding to the file mapping request and the virtual memory area.

Abstract: An electronic device is provided. The electronic device includes at least one first memory being nonvolatile and a processor configured to read a file from the first memory or to write a file on the first memory. The first memory stores instructions, the instructions, when executed, causing the processor to provide a software layer structure including a first virtual file system layer configured to interface with an application program layer, a compressed file system layer configured to compress at least a part of data of the written file or to decompress at least a part of data of the read file, a second virtual file system layer configured to manage the written or read file, and a first file system layer configured to read at least a part of the file from the first memory or to write at least a part of the file on the first memory.