Date: Mon, 06 Oct 2003 15:43:52 -0400 From: Allen Landsidel <all@biosys.net> To: freebsd-smp@freebsd.org Subject: systat, vmstat, and interrupts Message-ID: <6.0.0.22.0.20031006154227.023f7928@pop.hotpop.com>
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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.. Sample output: 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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