I found this. It looks like it might be of interest to you. http://cae.best.vwh.net/irqtune/ Atte André Jensen wrote:
Hi Reading the thread(s) on realtime-kernels, I decided to have another go at putting my sound card (IBM T41 laptop) on it's own IRQ. Through luck, some black BIOS-magic and help from linux thinkpad mailing list I managed to move the sound card, PC-card, modem and SMBus controller(whatever that is) to their own IRQ. I'm still trying to get *only* the sound card's IRQ moved. My question is: Since I don't use the pc-card or the modem, and provided that SMBus is something I don't use, will having these extra stuff on the same IRQ as the sound card be a problem? Will it make any difference if I don't load the kernel modules for the pc card/modem thereby disabling them?
