systat, vmstat, and interrupts
all at biosys.net
Mon Oct 6 13:04:15 PDT 2003
This is a copy of an email I sent to -questions. After about a week
without a response I figure nobody knows and/or cares enough to hazard a
response, so I'm going to drop it here and see if anyone has an idea..
Not as complicated a question as one might think, but I still haven't found
a way.. so, is there some way I can get tools like systat (systat -vmstat
1) or vmstat (vmstat -i) that show irq rates to display the "proper" IRQs
on SMP boxes?
I have several SMP boxes right now, and despite all my manpage digging and
googling, I can't figure out a way to demux the mux'd IRQ for display
purposes; It's quite useless to know that "mux irq2" is handling 1k+
interrupts/sec when there are several devices actually using that irq..
interrupt total rate
mux irq2 51255486 416
fdc0 irq6 3 0
clk irq0 12300164 99
rtc irq8 15743621 127
Total 79299274 644
NIC, scsi controller, etc are all contained within the mux I believe, along
with most everything else on this box from the looks of it.
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