e2fsprogs

The e2fsprogs package contains a number of utilities for creating, checking, modifying, and correcting any inconsistencies in second (ext2) extended filesystems. E2fsprogs contains e2fsck (used to repair filesystem inconsistencies after an unclean shutdown), mke2fs (used to initialize a partition to contain an empty ext2 filesystem), debugfs (used to examine the internal structure of a filesystem, to manually repair a corrupted filesystem, or to create test cases for e2fsck), tune2fs (used to modify filesystem parameters), and most of the other core ext2fs filesystem utilities. It also supports the ext3 and ext4 filesystems with journaling support.

You should install the e2fsprogs package if you need to manage the performance of an ext2 filesystem.