[dpdk-dev] NIC Stops Transmitting

Scott Talbert swt at techie.net
Mon Jul 29 19:02:14 CEST 2013


On Fri, 26 Jul 2013, Scott Talbert wrote:

>> I am wondering whether you use multiple cores accessing the same
>> receive queue. I had this problem before, but after I make the same
>> number of receiving queues as the number of receiving cores, the
>> problem disappeared. I did not dig more since I did not care how many
>> receive queues I have did not matter.
>
> Thanks.  I have only one queue (should I be using more?) but as far as I 
> know, I'm only using one core to transmit as well.

All,

It turns out that the problem appears to have been caused by me using a 
signal handler to control my data rates.  After switching to use RTE 
timers instead, I am able to transmit close to 10 Gb/sec reliably.

Thanks,
Scott



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