[arch] Confused with pacman-optimize

[Sergej Pupykin]

Hi,

I read pacman-optimize script and found that it just tar-untar pacman
dir. Wiki page

http://wiki.archlinux.org/index.php/Improve_Pacman_Performance

said that this script place files together on disk.

I'm asking why? All modern filesystem have different empty space searching
algorithms, but no FS place files from disk begining to end. (May be except
FAT implementation).

Many unix file systems use allocation groups which filling evenly.

User never can make FS to put file in userselected location.

Is anybody there who take increased pacman speed from pacman-optimize?