High Resolution Timer
If you’re planning on using rosegarden, when you recompile your kernel you’ll want to make sure the following options are set like this in your .config:
# CONFIG_HZ_100 is not set
# CONFIG_HZ_250 is not set
CONFIG_HZ_1000=y
CONFIG_HZ=1000
Doing this got rid of a start-up warning from rosegarden that told me I didn’t have a high enough resolution system timer to really work with MIDI. The Fedora Core 6 stock kernel seems to keep time at 250Hz, which is not fast enough for rosegarden.

