Hi Mark, We just merged DPDK support for the X3xx. You can try it out if you build the current head of master. DPDK may help with 8 channels running at 100 MS/s each.
https://github.com/EttusResearch/uhd/commits/master https://files.ettus.com/manual/page_dpdk.html Regards, Nate Temple On Wed, Apr 10, 2019 at 3:33 PM Mark Gannet via USRP-users < usrp-users@lists.ettus.com> wrote: > Okay thank you Marcus. > > Mark > > On Wed, Apr 10, 2019 at 3:09 PM Marcus D. Leech <patchvonbr...@gmail.com> > wrote: > >> On 04/10/2019 05:31 PM, Mark Gannet wrote: >> >> I've addressed the USRP as the following: >> USRP[0-3]: 192.168.4x.2, where x=0,1,2,3 >> >> UHD 3.9.2 >> >> You should probably upgrade to a newer UHD version. There were bugs in >> that area, as I recall, that have since been fixed. >> >> >> On Wed, Apr 10, 2019 at 1:47 PM Marcus D. Leech via USRP-users < >> usrp-users@lists.ettus.com> wrote: >> >>> On 04/10/2019 04:41 PM, Mark Gannet via USRP-users wrote: >>> > I have 4 USRP x310s running at 12.5 MSa/sec on a quad 10GbE network >>> > adapter (each USRP has it's own 10 GbE connection). I'm using the 16 >>> > bit short format. >>> > >>> > I can operate one USRP at a time 100 MSa/sec with no overflows or >>> > drops (200 MSa/sec total for one USRP). If I want to run all 4 USRP, >>> > I can only achieve 25 MSa/sec for all 8 channels (total of 200 >>> MSa/sec). >>> > >>> > Basically the sum of sample rates cannot exceed 200 MSa/sec which is >>> > about 6400 Mbps (200*4 bytes/sa * 8 b/B). >>> > >>> > Why is this? I thought with a dedicated 10GbE network port for each >>> > USRP, the sample rate limit would be 100 MSa/sec for each (6400 Mbps). >>> > >>> > Thanks, >>> > Mark >>> > >>> What version of UHD are you using? >>> >>> How are you addressing the USRPs? >>> >>> >>> >>> _______________________________________________ >>> USRP-users mailing list >>> USRP-users@lists.ettus.com >>> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com >>> >> >> _______________________________________________ > USRP-users mailing list > USRP-users@lists.ettus.com > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com >
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