Author(s): Nevila Resulaj Xoxa, Kastriot Tema, Igli Tafa

This paper will discuss the performance improvements in the Ext4 file system in Linux 64-bit, coming by use the extent-s. The traditionally Unix-derived file-systems like Ext3 use an indirect block mapping scheme. This in inefficient and not aligned state of the art status where we aim for file systems. To solve this problem are proposed maps extent. Our aim in this paper is to analyze and go conclusions that is a good choice to extend functionality setting it in file system and if so what are its problems and how we can further improve this technique. For performance analysis and for extraction conclusions will use references in which measurements have been made using different benchmarks under different size and load files.