[AG-TECH] VenueClient crashes

Christoph Willing c.willing at uq.edu.au
Tue Nov 4 05:45:20 CST 2008


On 04/11/2008, at 7:10 PM, muhammad akl wrote:

> Sorry for being late in response Christoph,
>
> Well About the  tools that I used to measure  the rates , they were  
> the vic itself and system monitor which comes by default with Ubuntu
>
> and here is a screenshot belongs to the Receiving machine :
>
> http://muhammad.akl.googlepages.com/acc.png
>
> I tried to perform the steps you suggested but i got some errors ,  
> So I will try again and will inform you about the results .


Muhammad,

When you run the tests, could you shut down any other applications  
please? I noticed in your screenshot that Ekiga was also running at  
the time - that may have had some some strange side effect.


chris


> On Wed, Oct 29, 2008 at 1:22 AM, Christoph Willing  
> <c.willing at uq.edu.au> wrote:
>
> On 26/10/2008, at 6:16 PM, muhammad akl wrote:
> [snip]
>
> After All the words mentioned UP , now the video is working fine  
> here and the sending and receiving machines are working so fine  
> except minor problem like i should disable and enable the producer  
> Service from time to time (I believe it's due to my network traffic) .
>
> But The New problem here which happend today (I was doing all these  
> tests mentioned in the previous mail yesterday) when the second  
> machine starts to receive video , the whole operating System  
> (ubuntu) hangs ! I thought the problem was a hardware issue , so I  
> changed the producer machine to be a Consumer and made the Consumer  
> to be a producer , but got the same result , the Consumer machine  
> hanged also after it received the Video , this problem didn't  
> appear yesterday .
>
> So What do you think about this problem ? hardware issues ?
>
> Also noticed something strange : the producer machine sends the DV  
> streams at 29 Mbps while the Consumer machine receives the DV  
> streams at more than 100 Mbps !!
>
>
> Muhammed,
>
> I haven't been able to replicate this problem. The sending rate is  
> about right but the receiving rate should be the same, not more  
> than 3 times greater. How are you measuring the date rate - from  
> vic itself or some other tool?
>
> Can you try running a stream point to point separate from AG? i.e.  
> shutdown VenueClient on both machines, then cd to ~/.AccessGrid3/ 
> local_services/SimpleHDVideoService and on the sending machine run:
>        ./runDVslow address/port
> where address/port means the IP address of the receiving machine  
> and port is some highish number e.g. 45678
>
> On the receiving machine, cd to same directory (or  
> SimpleHDVConsumerService) and run:
>        ./vic address/port
> where address is the IP address of the sending machine and port is  
> the same number you chose when running the sending stream.
>
> How are your send & receive data rates?
>
> If the data rates seem sane, then the next step is to try the same  
> test but replacing the IP addresses of the test machines with some  
> arbitrary multicast address e.g. on the sending machine:
>        ./runDVslow 233.45.67.89/45678
> and on the receiving machine:
>        ./vic 233.45.67.89/45678
>
> How are the data rates on both machines now?
>
>
>
> chris
>
>
>
> Christoph Willing                        +617 3365 8350
> QCIF Access Grid Manager
> University of Queensland
>
>
>
>
>

Christoph Willing                        +617 3365 8350
QCIF Access Grid Manager
University of Queensland







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