Fwd: Interrupt Overload
Vladislav Prodan
universite at ukr.net
Sat Jun 7 15:09:15 UTC 2014
--- Original message ---
From: "Dutch Ingraham" <stoa at gmx.us>
Date: 7 June 2014, 17:33:33
> On 06/07/2014 09:53 AM, Hans Petter Selasky wrote:
> > On 06/07/14 15:05, Dutch Ingraham wrote:
> >>
> >> Hi everyone - I am resending this as it is not appearing in the archives
> >> so I don't believe it made it to the general list-serv. (My apologies if
> >> it actually did make it.)
> >>
> >
> > Hi,
> >
> > UHCI controllers should not produce more than 1000 IRQ/s. Is the
> > interrupt perhaps shared?
> >
> > --HPS
> >
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> >
> Thanks, Hans. Here's some output from <vmstat -i>:
>
> interrupt total rate
> irq1 atkbd0 48 0
> irq16 uhci0 19937714 43248
> irq18 atapci0+ 886 1
> [snip]
>
> There are no other UHCI's in the list.
>
> A <dmesg | grep uhci> produces only one instance at uhci0:
>
> "uhci0: <UHCI (generic) USB controller> port 0xff20-0xff3f \
> irq16 at device 26.0 on pci0"
>
> Is there another command you're thinking of to produce better information?
Show command output:
sysctl kern.eventtimer.choice kern.eventtimer.timer
Try changing the type of timer:
sysctl kern.eventtimer.timer=LAPIC
--
Vladislav V. Prodan
System & Network Administrator
support.od.ua
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