[mythtv-users] Request info from working M10K frontend.

[Cecil Watson]

Michael Carland wrote:

>
> On Apr 19, 2005, at 6:11 PM, Cecil Watson wrote:
>
>> Hello,
>>
>> Michael Carland wrote:
>>
>>> Howdy.
>>>
>>>
>>> ** Questions
>>>
>>> Could someone with a working M10K using built in video and ethernet, 
>>> with a separate backend, provide me with the following info?
>>>
>>> What interrupts are your ethernet and video on? (cat /proc/interrupts)
>>>
>>>            CPU0
>>>  15:    1856705          XT-PIC  uhci_hcd, eth0, via at pci:0000:01:00.0
>>
>>
>>          CPU0
>>  0:     185254          XT-PIC  timer
>>  1:         10          XT-PIC  i8042
>>  2:          0          XT-PIC  cascade
>>  5:        120          XT-PIC  uhci_hcd, uhci_hcd, yenta, VIA8233, eth0
>>  6:      16802          XT-PIC  uhci_hcd, ohci1394, yenta, ivtv0
>>  7:        285          XT-PIC  parport0
>>  8:          1          XT-PIC  rtc
>>  9:          0          XT-PIC  acpi
>> 12:        110          XT-PIC  i8042
>> 14:       4790          XT-PIC  ide0
>> 15:         12          XT-PIC  ide1
>>
>
> Interesting. I'm not able to get anything to use int 5, and you have 
> eth0 there, which is what I would really like to try. I just tried 
> turning on PNP and clearing the config in the BIOS, and trying ACPI. 
> From the boot log, it looks like it will only route to interrupts 10, 
> 11, and 15. Maybe I'll hop over the the viaarena forum, and see if 
> they have any ideas.
>
> I notice you have yenta loaded, google tells me that's pcmcia related. 
> Are you using an MII? Is your eth0 on pcmcia, or are you using built in?

Yes, MII.

>
> Also, you have ivtv loaded, not too many ethernet interrupts, and 
> quite a few ide0 interrupts. Is your system just a frontend, or is it 
> both frontend and backend? I ask because when the nuv files are local, 
> I don't see the problem.
>
Both.

>> I too am seeing some stuttering with 0.18 on the Epia.  First it was 
>> due to DRM.  Once I got that resolved, it would stutter when starting 
>> up.  When I first included support for the Epia (Unichrome) in 
>> KnoppMyth, CPU usage was 50% when using the CD as a frontend, now it 
>> is 92%.  Doing an install to hard drive uses the same amount.  If I 
>> compile on the Epia or use my i686 debs, CPU usage is about 50%.  
>> Before, it was about 13%.  So something is amiss, I just cannot put 
>> my hands on it...
>
>
> With XvMC and .18 on the frontend only Epia, I am seeing roughly 20% 
> cpu usage, which makes this problem even stranger. About 3% cpu on 
> hardware interrupts, 3% on software interrupts, and 0% wait. That's 
> what's making me think network latency now, and checking out the 
> shared video/ethernet interrupts situation.
>
> Now that I have a disk in there, and no longer need net boot, I'm 
> going to try a nic in the pci, and see if I can get it on a different 
> interrupt that way, just for giggles.
>
> Thanks for the info.
>
You're welcome.

> -Michael
>
Cecil