If you have a SMP system and wonder if exists such thing that can help you to use all CPUs to compress/decompress a file then the answer is YES, there is. It is PBZIP2 - the tool that speed up…
Gentoo speed up boot with parallel init
To speed up the system init at boot-time, just edit your/etc/conf.d/rc and set the RC_PARALLEL_STARTUP variable to yes: RC_PARALLEL_STARTUP="yes" Also speed up boot with parallel init it's just a damn line!