Messages in this thread | | | Date | Sun, 10 Aug 2003 20:48:47 -0700 (PDT) | Subject | Re: /proc/stat's intr field looks odd, although /proc/interrupts seems correct | From | "Randy.Dunlap" <> |
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> Hi, > > I am running 2.6.0-test2-mm4 on an SMP machine with dual Athlon MP 2000+s. > > /proc/stat displays: > > cpu 13261 0 2603 887671 4399 > cpu0 6936 0 1571 443183 2285 > cpu1 6325 0 1031 444488 2113 > intr 5021986 4539589 5476 0 0 0 0 0 0 0 0 0 0 73888 0 16345 11 379144 0 7533 > 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 > 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 > 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 > 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 > 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 > 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 > ctxt 1677244 > btime 1060567182 > processes 1286 > procs_running 1 > procs_blocked 0 > > /proc/interrupts: > > CPU0 CPU1 > 0: 26530 4875571 IO-APIC-edge timer > 1: 6035 0 IO-APIC-edge i8042 > 2: 0 0 XT-PIC cascade > 12: 77657 3869 IO-APIC-edge i8042 > 14: 16560 1 IO-APIC-edge ide0 > 15: 11 0 IO-APIC-edge ide1 > 16: 409959 1 IO-APIC-level radeon@PCI:1:5:0 > 17: 0 0 IO-APIC-level EMU10K1 > 18: 7942 0 IO-APIC-level eth0 > NMI: 0 0 > LOC: 4902124 4902123 > ERR: 0 > MIS: 0 > > I am not sure why the intr line contains all those zeros. Is this normal > behavior?
Yes, for most architectures, it prints interrupts from 0 thru NR_IRQS: for (i = 0 ; i < NR_IRQS ; i++) len += sprintf(page + len, " %u", kstat_irqs(i)); and NR_IRQS varies depending on the kernel build options, but (for x86) is usually either 16 or 224.
~Randy
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