[Asterisk-Users] OT: Hardware Interrupts; Who is it?

[Sig Lange]

It means you have a piece of hardware that is generating a lot of interupts. 
Try a few commands like this:

# vmstat 1
# watch -n1 cat /proc/interrupts 
Go through lspci -vb and disable hardware that's not being used. 

Watch the numbers as they increase. Also check for ERR and MIS


On 9/19/05, Rich Adamson <radamson at routers.com> wrote:
> 
> 
> > OK. Perhaps I was not clear. Please read my original post again:
> >
> > >>>> I've been trying to diagnose why my server has a constant idle time 
> of 90%
> > >>>> even when nothing is running.
> >
> > I did not say "90% usage" I said "90% idle". Meaning I have a constant 
> CPU
> > usage of 10%.
> >
> > This 10% measurement comes from the "hardware interrupt" (hi) from 
> within
> > "top":
> >
> > Cpu(s): 3.8% us, 2.1% sy, 0.0% ni, 85.5% id, 0.2% wa, 8.0% hi, 0.4% si
> >
> >
> > Even when all other percentages are at 0%, hi remains around 10%. How 
> can I
> > figure out what is causing all these interrupts?
> 
> I don't have a clue other then to unload drivers, etc.
> 
> 
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-- 
Sig Lange
http://www.signuts.net/
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