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List:       usrp-users
Subject:    [USRP-users] Re: Question: maximum single channel sample rate on X410 with DPDK
From:       perper () o2 ! pl
Date:       2022-10-28 10:15:34
Message-ID: 5Kk5brD5qLw2zmry83Z2MK6DndDEoxqJcNVa0MES88 () lists ! ettus ! com
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perper@o2.pl wrote:

> Hello,
> 
> It seems that I have to answer my own question. Currently I succeeded to get \
> 245.76MSamp/s in benchmark_rate for single channel with DPDK over single 10Gbit \
> link for an RFSoC device similar to USRP X410. 
> My setup:
> 
> * UHD 4.3, Ubuntu 20.04, DPDK 19.11 installed from packages
> 
> * command: benchmark_rate  --rx_subdev "A:0" --rx_channels 0 \
> --args="addr=192.168.10.2,mgmt_addr=192.168.0.39,use_dpdk=1" --rx_rate 245.76e6 
> * Hardware: AMD Ryzen Threadripper 2990WX, 128GB RAM, motherboard Asus X399
> 
> This is not a mind-blowing rate, because I'm able to get quite stable 245.76 \
> MSamp/s without DPDK. 
> But it is a good start taking into account number of different strange steps during \
> DPDK installation and setup and very poor performance at the beginning. 
> Solutions to some issues were totally counterintuitive. I.e. in the end I still had \
> one \~oveflow per second at 245.76MSamp rate. The solution was to run the program \
> WITHOUT root rights/sudo (what requires additional steps that were described by Rob \
> Kossler). 
> —\
> Best Regards,\
> Piotr Krysik
> 
> Piotr Krysik wrote:
> 
> > Hello all,
> > 
> > Has anybody tried to use DPDK with USRP X410?
> > 
> > If yes - can you share what was maximal sample rate for a single channel
> > that you were able to stream over 10G or 100G Ethernet connection
> > without loss and what was your setup (hardware and software)?

Little update: currently with the same setup but with different clocks configuration \
I can record 256MS/s. This is with use of single 10GbE connection.

I can't use multiple connections simultaneously to transfer more channels with \
maximum rate yet. If someone tried that with USRP X410 I would be grateful for \
information how it worked (or didn't work).

Best Regards,\
Piotr Krysik


[Attachment #5 (text/html)]

<p>perper@o2.pl wrote:</p><blockquote><p>Hello,</p><p>It seems that I have to answer \
my own question. Currently I succeeded to get 245.76MSamp/s in benchmark_rate for \
single channel with DPDK over single 10Gbit link for an RFSoC device similar to USRP \
X410.</p><p>My setup:</p><ul><li><p>UHD 4.3, Ubuntu 20.04, DPDK 19.11 installed from \
packages</p></li><li><p>command: benchmark_rate  --rx_subdev "A:0" --rx_channels 0 \
--args="addr=192.168.10.2,mgmt_addr=192.168.0.39,use_dpdk=1" --rx_rate \
245.76e6</p></li><li><p>Hardware: AMD Ryzen Threadripper 2990WX, 128GB RAM, \
motherboard Asus X399</p></li></ul><p>This is not a mind-blowing rate, because I'm \
able to get quite stable 245.76 MSamp/s without DPDK.</p><p>But it is a good start \
taking into account number of different strange steps during DPDK installation and \
setup and very poor performance at the beginning.</p><p>Solutions to some issues were \
totally counterintuitive. I.e. in the end I still had one ~oveflow per second at \
245.76MSamp rate. The solution was to run the program WITHOUT root rights/sudo (what \
requires additional steps that were described by Rob Kossler).</p><p>—<br>Best \
Regards,<br>Piotr Krysik</p><p>Piotr Krysik wrote:</p><blockquote><p>Hello \
all,</p><p>Has anybody tried to use DPDK with USRP X410?</p><p>If yes - can you share \
what was maximal sample rate for a single channel that you were able to stream over \
10G or 100G Ethernet connection without loss and what was your setup (hardware and \
software)?</p></blockquote></blockquote><p><br></p><p>Little update: currently with \
the same setup but with different clocks configuration I can record 256MS/s. This is \
with use of single 10GbE connection.</p><p>I can't use multiple connections \
simultaneously to transfer more channels with maximum rate yet. If someone tried that \
with USRP X410 I would be grateful for information how it worked (or didn't \
work).</p><p>Best Regards,<br>Piotr Krysik</p><p><br></p>



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