On Thu, Jul 19, 2007 at 04:38:09PM +0300, Avi Kivity wrote: > Looking at two random servers here and a desktop, interrupts are > unshared except for usb. A laptop was not so lucky. So "no chance" is > a bit extreme. > > I agree it's far from optimal, but it is less limited than you imply.
Well with 4 PCI interrupts, it doesn't take that many PCI devices before you must be sharing. Of course it seems some higher end systems split up the PCI bus in some way and run different IRQs from the APIC to different slots. I suspect that is how I see IRQ's of 177, 185, 193, 201, 209, etc on some systems. If you have a server with an IO APIC then I suppose you have a rather good chance of avoiding shared IRQs for the most part. -- Len Sorensen - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/