[USRP-users] E310 network mode throughput

Philip Balister philip at opensdr.com
Mon Apr 27 12:16:19 EDT 2015


On 04/27/2015 11:58 AM, Marcus Müller via USRP-users wrote:
> Hi Jason,
> 
> that already is pretty optimized. The architecture of the network
> interface on the E310 doesn't allow for higher rates, really.
> Network mode is a diagnostic tool; a lot of work has gone into getting
> it to work at these rates.

Basically, you would need to change the design so the fpga could
directly control the MAC and bypass the ARM. I think this is possible,
but not an easy change.

Philip


> 
> Best regards,
> Marcus
> 
> On 04/26/2015 02:11 AM, Jason Hein via USRP-users wrote:
>> Has anyone done any benchmarking pulling data off the E310 in network
>> mode?  I can only get about 4 Mbps (1 MSps 16bit complex) off the
>> device without dropping data and getting overflows.  On the E310
>> itself, the usrp_e3x0_network_mode process pegs the cpu pretty quickly
>> with sample rates of 2 MSps and above.  
>>
>> Any plans to optimize this?  I'd like to use the E310 in a similar
>> fashion as the N210 and saturate the NIC bandwidth at around 25 MSps.
>>
>> Thanks.
>>
>> Jason
>>
>>
>> _______________________________________________
>> USRP-users mailing list
>> USRP-users at lists.ettus.com
>> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
> 
> 
> 
> 
> _______________________________________________
> USRP-users mailing list
> USRP-users at lists.ettus.com
> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
> 





More information about the USRP-users mailing list