I was trying to figure out how APIC and IRQL are related, and I can't quite get it organized in my head. So far I have this, which I think is right: The PIC used to support up to 15 different hardware ...
I'm a bit confused by what you are trying to see. Cat /proc/interrupts on my Intel Linux box doesn't appear to show me how many keystrokes I've typed since... "X". Yes, I can see the # of interrupts ...