Nick Piggin <[EMAIL PROTECTED]> writes: > > For that matter, I'd like to know why it has been decided that the > best place for IRQ balancing is in userspace.
There is a lot of possible policy in it > It should be in kernel > IMO, and it would probably allow better power saving, performance, > fairness, etc. if it were to be integrated with the task balancer as > well. Integrating with the task balancer makes really only sense if the device supports MSI-X and if it does that you don't really need an irq balancer because you can just send to all CPUs as needed. Without MSI-X you would be trying to reprogram the interrupts all the time when a task is migrating and it is highly doubtful that doing that automatically would do any good. -Andi - 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/
