[USRP-users] b200 Overflows

Marcus D. Leech mleech at ripnet.com
Fri Sep 26 15:02:56 EDT 2014

On 09/26/2014 02:18 PM, Simon Brown via USRP-users wrote:
> Hi,
> Windows 64-bit: I'm streaming nicely, none of my threads indicate CPU 
> problems (plenty of headroom). At 8MB/s and higher I'm getting 
> fastpath Overrun messages every second or so even though I'm pulling 
> data from the b200 as fast as it's available, I am not CPU limited in 
> any way. Using Intel USB 3.
> FWIW I don't see any way to tune the uhd::rx_streamer -- bigger / more 
> buffers, also I don't see any way to flush either.
> Interestingly if I get my CUDA card working harder (more work on the 
> bus) the Overrun messages appear more frequently. I7 4770k, good 
> motherboard (can't remember what).
> Any suggestions?
> Simon Brown G4ELI
> http://v2.sdr-radio.com
> _______________________________________________
> USRP-users mailing list
> USRP-users at lists.ettus.com
> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
The USB transport parameters can be tweaked:


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