High interrupt CPU in top...

Dutch Ingraham stoa at gmx.us
Tue Oct 28 17:21:43 UTC 2014


On 10/28/14 09:27, Peter Harrison wrote:
> On 27 October 2014 23:56, Dutch Ingraham <stoa at gmx.us> wrote:
> 
>> On 10/27/2014 17:37, Peter Harrison wrote:
>>
>>>
>>> [peter 181]> vmstat -i
>>> interrupt                          total       rate
>>> irq1: atkbd0                       11870          1
>>> irq9: acpi0                        27499          4
>>> irq12: psm0                       234774         39
>>> irq16: uhci3                  1250818252     210292
>>> irq20: hpet0 uhci0               6977995       1173
>>> irq21: uhci1                          11          0
>>> irq23: ehci0                           2          0
>>> irq257: hdac0                      16380          2
>>> irq258: iwn0                      559063         93
>>> irq259: ahci0                     103732         17
>>> irq260: vgapci0                   311808         52
>>> Total                         1259061386     211678
>>>
>>>
>>> Any idea why the uhci is causing such a high interrupt rate? Is that
>>> normal? Sorry for being so noob.
>>>
>>>
>>>
>>> Peter Harrison.
>>> _______________________________________________
>>> freebsd-questions at freebsd.org mailing list
>>> http://lists.freebsd.org/mailman/listinfo/freebsd-questions
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>> freebsd-questions-unsubscribe at freebsd.org"
>>>
>>
>> Please post back the output from <pciconf -lvc>
>>
> 
> 
> Here you go:
> 
>  hostb0 at pci0:0:0:0: class=0x060000 card=0x20e017aa chip=0x2a408086 rev=0x07
> hdr=0x00
>     vendor     = 'Intel Corporation'
>     device     = 'Mobile 4 Series Chipset Memory Controller Hub'
>     class      = bridge
>     subclass   = HOST-PCI
>     cap 09[e0] = vendor (length 10) Intel cap 1 version 1
> vgapci0 at pci0:0:2:0: class=0x030000 card=0x20e417aa chip=0x2a428086 rev=0x07
> hdr=0x00
>     vendor     = 'Intel Corporation'
>     device     = 'Mobile 4 Series Chipset Integrated Graphics Controller'
>     class      = display
>     subclass   = VGA
>     cap 05[90] = MSI supports 1 message enabled with 1 message
>     cap 01[d0] = powerspec 3  supports D0 D3  current D0
> vgapci1 at pci0:0:2:1: class=0x038000 card=0x20e417aa chip=0x2a438086 rev=0x07
> hdr=0x00
>     vendor     = 'Intel Corporation'
>     device     = 'Mobile 4 Series Chipset Integrated Graphics Controller'
>     class      = display
>     cap 01[d0] = powerspec 3  supports D0 D3  current D0

> 
> Peter Harrison.
> _______________________________________________
> freebsd-questions at freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-questions
> To unsubscribe, send any mail to "freebsd-questions-unsubscribe at freebsd.org"
> 


OK - thanks.  Are you using xorg?  If so, please post back the output of
<vmstat -i> run prior to starting X (from a reboot or restart, not by
switching consoles).


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