nfe driver 6.2 stable

Jos Backus jos at catnook.com
Sat Sep 29 11:15:58 PDT 2007


On Sat, Sep 29, 2007 at 02:02:40PM +0900, Pyun YongHyeon wrote:
> On Fri, Sep 28, 2007 at 07:21:47PM -0700, Jos Backus wrote:
>  > On Sat, Sep 29, 2007 at 10:28:01AM +0900, Pyun YongHyeon wrote:
>  > [snip]
>  > > ATM nfe(4)'s interrupt moderation mechanism doesn't seem to work
>  > > at all so nfe(4) generates too many interrupts. However I don't
>  > > think it wouldn't be major bottleneck of the performance.
>  > 
>  > Could this be why (on -current) I had to enable polling on nfe0 to get rid of
>  > the choppy audio playback I was experiencing?
>  > 
> 
> Probably not. Maybe nfe(4) use shared interrupt.
> Check the output of "vmstat -i".

pcm0 and nfe0 share irq23:

    lizzy:~% vmstat -i
    interrupt                          total       rate
    irq1: atkbd0                      107296          0
    irq6: fdc0                             1          0
    irq12: psm0                       563936          1
    irq22: atapci2                   5293281         11
    irq23: pcm0 nfe0                 1225731          2
    cpu0: timer                    947413237       2000
    Total                          954603482       2015
    lizzy:~% 

Both pcm0 and nfe0 are mobo devices. Is there any way to change the assigned
interrupts?

-- 
Jos Backus
jos at catnook.com


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