Hi Marcus,

Exact model is RTL8111/8168/8411 and vendor is Realtek Semiconductor Co.,
ltd.
OS: Ubuntu 14.04

Regards,
Monika

On Sat, Apr 16, 2016 at 10:27 PM, Marcus Müller <marcus.muel...@ettus.com>
wrote:

> Hm, those are usually good. What's the exact model ("lspci" will tell)?
> What's your OS?
>
>
>
> On 16.04.2016 18:10, monika bansal wrote:
>
> Hi Marcus
>
> The network card is PCI Express Gigabit Ethernet Controller with 1Gbps
> capacity.
>
> Thanks,
> Monika
>
> On Fri, Apr 15, 2016 at 6:38 PM, Marcus Müller <marcus.muel...@ettus.com>
> wrote:
>
>> No harm done :) So the point is that DDDD is still pretty bad, and
>> usually shouldn't happen, unless your PC is *much* too slow, and usually
>> would be preceeded by a couple of "O".
>> There's two cases where this doesn't happen:
>> * Too small network buffers
>> * strangely misbehaving network hardware.
>>
>> So: what is your network card?
>>
>> Best regards,
>> Marcus
>>
>>
>> On 15.04.2016 14:32, monika bansal wrote:
>>
>> Yes my mistake :). Sorry for that. I just did not think of the python
>> block at that time and then after i realized.
>>
>> Regards,
>> Monika
>>
>> On Fri, Apr 15, 2016 at 5:17 PM, Marcus Müller <
>> <marcus.muel...@ettus.com>marcus.muel...@ettus.com> wrote:
>>
>>> Monika,
>>>
>>> no offense, but when you report a problem with software, it's pretty
>>> crucial you point out whether you've modified the software or not :)
>>>
>>> Best regards,
>>> Marcus
>>>
>>>
>>> On 15.04.2016 06:28, monika bansal wrote:
>>>
>>> Hii,
>>>
>>> Thank you for your help.
>>> That "DDDD" issue is not coming with original benchmark files.
>>> I added one python block in between the chain in benchmark code. I think
>>> due to which it was not fast enough to process the incoming data resulting
>>> "DDDD" issue.
>>>
>>> Regards,
>>> Monika
>>>
>>> On Tue, Apr 5, 2016 at 11:51 PM, < <mle...@ripnet.com>mle...@ripnet.com>
>>> wrote:
>>>
>>>> What if you make the file "/dev/null" -- does this still happen?
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> On 2016-04-05 14:12, monika bansal wrote:
>>>>
>>>> Hii,
>>>>
>>>> I am running benchmark code and on the receiver side after receiving
>>>> some number of packets(8000 so), it starts showing overflow errors ("DDDD")
>>>> on terminal.
>>>> Following is the system configuration
>>>>
>>>> python benchmark_rx.py -f 1100M --args "addr=10.32.38.163"
>>>> --to-file=/home/ashokbandi/GNU/a_rx.txt --bandwidth=500000
>>>>
>>>> Decreasing the bandwidth delays the error.
>>>>
>>>> I tried changing buffer size by setting net.core.rmem_max and
>>>> net.core.wmem_max to 33445532 but to no avail.
>>>>
>>>>
>>>> Following is the screen shot of terminal
>>>>
>>>> DDok: True      pktno: 24116      n_rcvd: 9730      n_right: 9723
>>>> DDDDDDDDok: True      pktno: 24182      n_rcvd: 9731      n_right: 9724
>>>> DDDDDDDDDDDDDDok: True      pktno: 24319      n_rcvd: 9732
>>>>  n_right: 9725
>>>> DDDDDDDDDDDDDDDDok: True      pktno: 24442      n_rcvd: 9733
>>>>  n_right: 9726
>>>> DDDok: True      pktno: 24477      n_rcvd: 9734      n_right: 9727
>>>> DDDDDDDDDok: True      pktno: 24568      n_rcvd: 9735      n_right: 9728
>>>> DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDok:
>>>> False      pktno: 22729      n_rcvd: 9736      n_right: 9728
>>>>
>>>>
>>>> Thanks
>>>>
>>>> _______________________________________________
>>>> Discuss-gnuradio mailing 
>>>> listDiscuss-gnuradio@gnu.orghttps://lists.gnu.org/mailman/listinfo/discuss-gnuradio
>>>>
>>>>
>>>
>>>
>>
>>
>
>
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