Re: irqbalance runs only once; is that right?

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On Tue, 2008-08-19 at 16:35 -0300, Andre Costa wrote:
> Hi,
> 
> I just realized that, even though /etc/sysconfig/irqbalance has
> 
> ONESHOT=
> 
> irqbalance runs only once and then bails out (at least it seems to be
> gracefully). This is what happens if I try to run it by hand:
> 
> root:~# irqbalance --debug
> Package 0:  cpu mask is 00000003 (workload 0)
>         Cache domain 0: cpu mask is 00000003  (workload 0) 
>                 CPU number 0  (workload 0)
>                 CPU number 1  (workload 0)
> Interrupt 20 (class ethernet) has workload 1 
> Interrupt 8 (class timer) has workload 0 
> Interrupt 0 (class timer) has workload 0 
> Interrupt 17 (class storage) has workload 21 
> Interrupt 21 (class storage) has workload 0 
> Interrupt 16 (class legacy) has workload 123 
> Interrupt 22 (class legacy) has workload 81 
> Interrupt 1 (class legacy) has workload 1 
> Interrupt 23 (class legacy) has workload 0 
> Interrupt 19 (class legacy) has workload 0 
> Interrupt 18 (class legacy) has workload 0 
> Interrupt 9 (class legacy) has workload 0 
> Interrupt 6 (class legacy) has workload 0 
> Interrupt 4 (class other) has workload 0 
> 
> 
> 
> -----------------------------------------------------------------------------
> IRQ delta is 1892 
> Package 0:  cpu mask is 00000003 (workload 1154)
>         Cache domain 0: cpu mask is 00000003  (workload 1153) 
>                 CPU number 0  (workload 508)
>                   Interrupt 17 (storage/91) 
>                   Interrupt 22 (legacy/412) 
>                   Interrupt 23 (legacy/0) 
>                   Interrupt 18 (legacy/0) 
>                   Interrupt 6 (legacy/0) 
>                 CPU number 1  (workload 645)
>                   Interrupt 20 (ethernet/10) 
>                   Interrupt 21 (storage/8) 
>                   Interrupt 16 (legacy/621) 
>                   Interrupt 19 (legacy/0) 
>                   Interrupt 9 (legacy/0) 
>                   Interrupt 1 (legacy/0) 
>   Interrupt 4 (other/0) 
> 
> After this, it just quits with status 0, and /var/run/irqbalance.pid
> is removed.
> 
> Is this normal behavior? (manpage says it should keep balancing IRQs
> each 10s if ONESHOT is not set)
> 
> Version is irqbalance-0.55-9.fc9.x86_64
> 
> Regards,
> 
> Andre
That is interesting because the big leap forward in 2.6.x kernels is to
have scheduling lists that balance the work more efficiently among cpus.

--
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Military secrets are the most fleeting of all. -- Spock, "The Enterprise
Incident", stardate 5027.4
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Aaron Konstam telephone: (210) 656-0355 e-mail: akonstam@xxxxxxxxxxxxx

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