It is intended to speed up a system by reducing the time a program needs to startup. This seems to help systems with a large number of libraries, such as KDE/GNOME.
How to run :
As root, run the following command.
# prelink -avmR
prelink package information :
[root@unixfoo ~]# which prelink
[root@unixfoo ~]# rpm -qf /usr/sbin/prelink
[root@unixfoo ~]# rpm -qi prelink
Name : prelink Relocations: (not relocatable)
Version : 0.3.9 Vendor: Fedora
Release : 2.1 Build Date: 21 Jun 2007
Install Date: Tue 02 Sep 2008 01:51:10 PM PDT Build Host: xxxxx
Group : System Environment/Base Source RPM: prelink.src.rpm
Size : 1681237 License: GPL
Signature : DSA/SHA1, 21 Jun 2007 , Key ID dddffee
Summary : An ELF prelinking utility
The prelink package contains a utility which modifies ELF shared libraries
and executables, so that far less relocations need to be resolved at runtime
and thus programs come up faster.