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
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