5.2. Milking performance from your system for all it's worth
If for some reason you're using X 3.3, follow the instructions given by mtrr.txt (see Section 5.1 ) to set up your MTRRs. X 4.0 does this automatically for you.
If you're playing a game under X, don't run a window manager, and certainly don't run a desktop manager like GNOME or KDE. See Section 4.2 for details.
Kill all non-essential processes (you'll have to do this as root) by using the startup scripts on your system. On Debian, the startup scripts for run-level 2 are located in /etc/rc2.d/. You can kill a service in an orderly manner by sending its startup script the 'stop' command:
# cd /etc/rc2.d
# ./ntpd stop
Another (radical) option is to simply put yourself in single-user mode with
# telinit 1
This will even get rid of getty; your system will only be running whatever is absolutely crucial to its operation. You'll have something like 10 processes running. The downside is that you'll have to play the game as root. But your process table will be a ghost town, and all that extra CPU will go straight to your game.
* License
