[LAU] rtirq not setting as expected

[mn0]

On 15.06.2012 19:22, Chris Caudle wrote:
> I attempted to have one of my ethernet interfaces increased in priority
> using an entry in the rtirq configuration file, but it did not seem to
> work as seen below in the rtirq status.  I expected eth2 to get set to
> priority 70, but it is at the default of 50 along with all the other
> non-sound interrupt handlers.  Any help in understanding why would be
> appreciated.
> 
> Also, is there any benefit to preventing the driver loading for the unused
> audio section of my video card?  The video card has an audio adapter that
> only outputs over the hdmi port, which I am not using, but it gets set to
> a high priority just like my ice card.  Any concern with that, or just
> ignore it?
> 
> --
> thanks,
> Chris Caudle
> 
> Content of /etc/sysconfig/rtirq:
> 
> # IRQ thread service names
> # (space separated list, from higher to lower priority).
> RTIRQ_NAME_LIST="rtc snd usb i8042 eth2"
> 
> # Highest priority.
> RTIRQ_PRIO_HIGH=90
> 
> # Priority decrease step.
> RTIRQ_PRIO_DECR=5
> 
> # Whether to reset all IRQ threads to SCHED_OTHER.
> RTIRQ_RESET_ALL=0
> 
> # On kernel configurations that support it,
> # which services should be NOT threaded
> # (space separated list).
> RTIRQ_NON_THREADED="rtc snd"
> 
> # Process names which will be forced to the
> # highest realtime priority range (99-91)
> # (space separated list, from highest to lower priority).
> # RTIRQ_HIGH_LIST="timer"
> 
> 
> --------------------------------
> result of rtirq status:
> 
> $ /etc/rc.d/init.d/rtirq status
> 
>   PID CLS RTPRIO  NI PRI %CPU STAT COMMAND
>   112 FF      90   - 130  0.0 S    irq/8-rtc0
>   677 FF      85   - 125  0.0 S    irq/69-snd_hda_
>   713 FF      85   - 125  0.0 S    irq/20-snd_ice1
>   104 FF      80   - 120  0.0 S    irq/10-ohci_hcd
>   106 FF      79   - 119  0.0 S    irq/10-ohci_hcd
>   109 FF      75   - 115  0.0 S    irq/1-i8042
>   108 FF      74   - 114  0.0 S    irq/12-i8042
>    41 FF      50   -  90  0.0 S    irq/9-acpi
>   102 FF      50   -  90  0.0 S    irq/10-ehci_hcd
>   225 FF      50   -  90  0.0 S    irq/64-radeon
>   329 FF      50   -  90  0.0 S    irq/14-pata_ser
>   330 FF      50   -  90  0.0 S    irq/15-pata_ser
>   332 FF      50   -  90  0.0 S    irq/11-sata_svw
>   345 FF      50   -  90  0.0 S    irq/18-firewire
>   350 FF      50   -  90  0.0 S    irq/65-cciss0
>  1217 FF      50   -  90  0.0 S    irq/16-eth0
>  1300 FF      50   -  90  0.0 S    irq/70-eth1
>  1374 FF      50   -  90  0.0 S    irq/71-eth2
>     3 FF       1   -  41  0.1 S    ksoftirqd/0
>    18 FF       1   -  41  0.1 S    ksoftirqd/1
>    25 FF       1   -  41  0.0 S    ksoftirqd/2
>    31 FF       1   -  41  0.0 S    ksoftirqd/3
> 
> 

I can confirm that removing "usb" from the section you added "eth2" to
doesn't work for me as well, still high prio.  Either "eth2" is just the
wrong or unsupported name... (as "usb" is taken instead of e/u/ohci) or
that part is somewhat broken?
/mn0