Larry, There shouldn't be much of a problem if you are not using USB at all. On the good side, you're using IRQ 10, which is a high priority interrupt, so you'll get pretty good response. If you have problems, or just want to change it, then it will likely require that you move the EMU10K1 to a different PCI slot and make adjustments in your BIOS to organize interrupt usage a bit. It's not difficult, but it can be trying and requires you to look at a lot of pages in BIOS to make the choices. It's probably not worth doing it now. You're always better off not to share IRQs, but in your case it may be OK. Good luck. Mark On Sat, 2003-03-01 at 06:07, Larry Troxler wrote: > Just a quick question. After installing Redhat 8, I'm a bit concerned by the > follwing line in my /proc/interrupts: > > 10: 476 XT-PIC usb-uhci, usb-uhci, EMU10K1 > > Aside from the extreme nausea resulting from learning that my sacred MIDI port > is being put in the same office as the disgusting mundane usb port, is this > a performance issue if I'm not actually using the usb port? > > I suspect there is a bit of a hit because the interrupt handler now has to > poll all the sources, but I maybe not - I understand the principles of > interrupt handling but not the specifics of the PCI bus or the linux kernel. > > So do I need to do something about this, or not? > > Larry > >
