[USRP-users] Installing PCIE drivers for x310

Marcus Müller marcus.mueller at ettus.com
Fri Oct 30 12:31:37 EDT 2015


Hi Jared,

pretty much the same as I see for gr-fosphor and 200MS/s over 10GE.
Guess my surprise as I found out that my dual-16x mainboard actually had
one 16x and 4x slot, in which my particular 8x 10Gigagabit Ethernet card
refused to work. So my GPU now only has four lanes; when it was still
16x-attached, I could get pretty high rates (around 280MS/s), now my PC
can no longer manage 184.32MS/s of fosphorized samples.

Best regards,
Marcus

On 10/30/2015 04:54 PM, Jared Dulmage via USRP-users wrote:
> I moved the PCIe interface card to an 8x slot which should have at least 4x PCIe lanes.  Now I'm getting around 24k - 25k interrupts/sec at 50M and 100MSps.  I am able to benchmark 200MSps, but piping that rate to a gr-fosphor display I get some overruns, though not at a blindingly fast rate.  So I think I would declare success.  Thanks for all your patience and help,
> Jared.
> ------------------------------------------------------
> Jared Dulmage
> Engineering Specialist
> Digital Comm. and Implementation Dept.
> Aerospace Corporation
> 310-336-3140
>
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