[ale] interrupt numbers

Greg Freemyer greg.freemyer at gmail.com
Fri Jun 26 15:37:38 EDT 2009


How many interrupts per second are you seeing?

iostat -d 5   (from the sysstat package) might be your friend

If you seem to be getting too many interrupts, is your DMA
engine/config broken by chance?

Greg

On Fri, Jun 26, 2009 at 3:07 PM, Jim Kinney<jim.kinney at gmail.com> wrote:
> um. duh.
>
> 15 is disk and 169 is raid controller.
>
> ugh. system is bogging down on IO really badly.
>
> On Fri, Jun 26, 2009 at 2:51 PM, Keith Miller<smeadspam at gmail.com> wrote:
>> you can start with /proc/interrupts then work back from there..
>>
>> K
>>
>>
>> Jim Kinney wrote:
>>> I am looking at a list of interrupts and their rate (sysstat data
>>> using kSar for graphing). I need to know how to map the interrupt
>>> number to a physical process.
>>>
>>> i.e. what is i015 being called by? as well as i169?
>>>
>>> Clearly the kernel source is my friend here but it's somewhat , um,
>>> large. any ideas on a short place to look? Are interrupts
>>> standardized?
>>>
>>>
>>
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>
>
>
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> --
> James P. Kinney III
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