A method of storing a file in a memory. An explicit command is issued to a file system to store the file in accordance with a desired performance characteristic of the file such as enhanced write performance, enhanced read performance or enhanced latency performance. The file system stores the file in the memory in accordance with the desired performance characteristic. Preferably the desired performance characteristic is achieved by storing the file in a physically contiguous portion of the memory or in a logically contiguous portion of the memory. After the explicit command has been issued for each of a plurality of files, the files may be stored concurrently.