Hi, Does linux control hardware polling? If yes, then recompile the kernel with USB as a module and don't 'modprobe usb' until it's needed. Afterwards, you can unload USB. I don't know the answer to my question but have assumed this is how things work. It'd be good to have a definitive insite. Anyone? Warning; I've got my new hardware so ignorant questions forthcoming. :) ron --- Larry Troxler <lt@xxxxxxxxxxx> 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 > > __________________________________________________ Do you Yahoo!? Yahoo! Tax Center - forms, calculators, tips, more http://taxes.yahoo.com/