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Discussion and technical support related to USRP, UHD, RFNoC
View all threadsUnder and Overflow Problems Very Regular
Hello Team,
I am operating a set of X310 in communication link, and I seem to be encountering data under and overflow problems very regular while operating at 2.5Msps… my target is at least 100MSps. Are there any suggestions you can offer? My MCR is 200MHz.
Thank you, look forward to hearing from you.
Regards,
AJ
Graduate Researcher
College of Electrical & Computing Engineering
Florida International University
10555 West Flagler Street
Room 3863B
Miami, FL 33174
Phone: 305-336-2541 | Email: asans008@FIU.edumailto:asans008@FIU.edu
[cid:5f50cbc9-9e74-4c5c-a657-0b62e407c068]
On 05/12/2024 18:15, Arnaldo Sans wrote:
Hello Team,
I am operating a set of X310 in communication link, and I seem to be
encountering data under and overflow problems very regular while
operating at 2.5Msps… my target is at least 100MSps. Are there any
suggestions you can offer? My MCR is 200MHz.
Thank you, look forward to hearing from you.
If you're getting under/over-runs at 2.5Msps, then either your computer
is WOEFULLY inadequate or you're doing
WAY more processing per sample than perhaps you should be.
I run a dual-polarization radiometer based on an X310 and it can stream
2x20Msps for hours at a time.
https://kb.ettus.com/USRP_Host_Performance_Tuning_Tips_and_Tricks
Also, is your Ethernet interface a "real" Ethernet interface or
1GBit-over-USB? Some of those have notoriously
poor performance.
/Regards,//
/
/AJ/
/Grad/**/uate Researcher/
/College of Electrical & //Computing// Engineering /
/Florida International University/
/10555 West Flagler Street/
/Room 3863B/
/Miami, FL 33174/
/Phone: 305-336-2541 | Email:////asans008@FIU.edu
mailto:asans008@FIU.edu/
_
_
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Hello Marcus,
Thank for looking into this... The computer is a NUC 13 Extream (i9). As for the ethernet interfase I am using the 10 Gigabit Ethernet port on the x310 and the NUC support 10 GBe.
If you think of anything else... please reach-out.
Thank you,
AJ
From: Marcus D. Leech patchvonbraun@gmail.com
Sent: Thursday, December 5, 2024 6:25 PM
To: Arnaldo Sans asans008@fiu.edu
Cc: usrp-users@lists.ettus.com usrp-users@lists.ettus.com
Subject: Re: [USRP-users] Under and Overflow Problems Very Regular
Note: This message originated from outside the FIU Faculty/Staff email system.
On 05/12/2024 18:15, Arnaldo Sans wrote:
Hello Team,
I am operating a set of X310 in communication link, and I seem to be encountering data under and overflow problems very regular while operating at 2.5Msps… my target is at least 100MSps. Are there any suggestions you can offer? My MCR is 200MHz.
Thank you, look forward to hearing from you.
If you're getting under/over-runs at 2.5Msps, then either your computer is WOEFULLY inadequate or you're doing
WAY more processing per sample than perhaps you should be.
I run a dual-polarization radiometer based on an X310 and it can stream 2x20Msps for hours at a time.
https://kb.ettus.com/USRP_Host_Performance_Tuning_Tips_and_Trickshttps://urldefense.com/v3/__https://kb.ettus.com/USRP_Host_Performance_Tuning_Tips_and_Tricks__;!!FjuHKAHQs5udqho!JvFipqsg8DXqJqqNNWX1vhZHhXOhpOkIMAqvm5gx7wNTMJK9y6iWtnlqrJ39jjTZgjpoVe87gqRlcdBU4xK6Fxtq$
Also, is your Ethernet interface a "real" Ethernet interface or 1GBit-over-USB? Some of those have notoriously
poor performance.
Regards,
AJ
Graduate Researcher
College of Electrical & Computing Engineering
Florida International University
10555 West Flagler Street
Room 3863B
Miami, FL 33174
Phone: 305-336-2541 | Email: asans008@FIU.edumailto:asans008@FIU.edu
[cid:part1.XPy09K2b.0XJ4WG0x@gmail.com]
USRP-users mailing list -- usrp-users@lists.ettus.commailto:usrp-users@lists.ettus.com
To unsubscribe send an email to usrp-users-leave@lists.ettus.commailto:usrp-users-leave@lists.ettus.com
On 06/12/2024 23:34, Arnaldo Sans wrote:
Hello Marcus,
Thank for looking into this... The computer is a NUC 13 Extream (i9).
As for the ethernet interfase I am using the 10 Gigabit Ethernet port
on the x310 and the NUC support 10 GBe.
If you think of anything else... please reach-out.
Thank you,
AJ
You can use the "benchmark_rate" tool to see what the range of sample
rates are that your compute can support.
This doesn't do any processing at all, just moves samples into and out
of the radio.
An i9, assuming it's running in "performance" (or perhaps "OnDemand")
should be doing just fine at considerably more
than 2.5Msps.
Something I forgot to clarify. What OS? If Linux, are you running it
in a VM, or on "bare metal"??
From: Marcus D. Leech patchvonbraun@gmail.com
Sent: Thursday, December 5, 2024 6:25 PM
To: Arnaldo Sans asans008@fiu.edu
Cc: usrp-users@lists.ettus.com usrp-users@lists.ettus.com
Subject: Re: [USRP-users] Under and Overflow Problems Very Regular
Note: This message originated from outside the FIU Faculty/Staff
email system.
On 05/12/2024 18:15, Arnaldo Sans wrote:
Hello Team,
I am operating a set of X310 in communication link, and I seem to
be encountering data under and overflow problems very regular
while operating at 2.5Msps… my target is at least 100MSps. Are
there any suggestions you can offer? My MCR is 200MHz.
Thank you, look forward to hearing from you.
If you're getting under/over-runs at 2.5Msps, then either your
computer is WOEFULLY inadequate or you're doing
WAY more processing per sample than perhaps you should be.
I run a dual-polarization radiometer based on an X310 and it can
stream 2x20Msps for hours at a time.
https://kb.ettus.com/USRP_Host_Performance_Tuning_Tips_and_Tricks
https://urldefense.com/v3/__https://kb.ettus.com/USRP_Host_Performance_Tuning_Tips_and_Tricks__;!!FjuHKAHQs5udqho!JvFipqsg8DXqJqqNNWX1vhZHhXOhpOkIMAqvm5gx7wNTMJK9y6iWtnlqrJ39jjTZgjpoVe87gqRlcdBU4xK6Fxtq$
Also, is your Ethernet interface a "real" Ethernet interface or
1GBit-over-USB? Some of those have notoriously
poor performance.
/Regards,//
/
*/AJ/*
*/Grad/**/uate Researcher/*
/College of Electrical & //Computing// Engineering /
/Florida International University/
/10555 West Flagler Street/
/Room 3863B/
/Miami, FL 33174/
/Phone: 305-336-2541 | Email:////_asans008@FIU.edu
<mailto:asans008@FIU.edu>_/
_
_
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Hello,
The OS is Ubuntu Linux --- on "bare metal". Thanks again
Regards,
AJ
From: Marcus D. Leech patchvonbraun@gmail.com
Sent: Friday, December 6, 2024 11:38 PM
To: Arnaldo Sans asans008@fiu.edu
Cc: usrp-users@lists.ettus.com usrp-users@lists.ettus.com
Subject: Re: [USRP-users] Under and Overflow Problems Very Regular
On 06/12/2024 23:34, Arnaldo Sans wrote:
Hello Marcus,
Thank for looking into this... The computer is a NUC 13 Extream (i9). As for the ethernet interfase I am using the 10 Gigabit Ethernet port on the x310 and the NUC support 10 GBe.
If you think of anything else... please reach-out.
Thank you,
AJ
You can use the "benchmark_rate" tool to see what the range of sample rates are that your compute can support.
This doesn't do any processing at all, just moves samples into and out of the radio.
An i9, assuming it's running in "performance" (or perhaps "OnDemand") should be doing just fine at considerably more
than 2.5Msps.
Something I forgot to clarify. What OS? If Linux, are you running it in a VM, or on "bare metal"??
From: Marcus D. Leech patchvonbraun@gmail.commailto:patchvonbraun@gmail.com
Sent: Thursday, December 5, 2024 6:25 PM
To: Arnaldo Sans asans008@fiu.edumailto:asans008@fiu.edu
Cc: usrp-users@lists.ettus.commailto:usrp-users@lists.ettus.com usrp-users@lists.ettus.commailto:usrp-users@lists.ettus.com
Subject: Re: [USRP-users] Under and Overflow Problems Very Regular
Note: This message originated from outside the FIU Faculty/Staff email system.
On 05/12/2024 18:15, Arnaldo Sans wrote:
Hello Team,
I am operating a set of X310 in communication link, and I seem to be encountering data under and overflow problems very regular while operating at 2.5Msps… my target is at least 100MSps. Are there any suggestions you can offer? My MCR is 200MHz.
Thank you, look forward to hearing from you.
If you're getting under/over-runs at 2.5Msps, then either your computer is WOEFULLY inadequate or you're doing
WAY more processing per sample than perhaps you should be.
I run a dual-polarization radiometer based on an X310 and it can stream 2x20Msps for hours at a time.
https://kb.ettus.com/USRP_Host_Performance_Tuning_Tips_and_Trickshttps://urldefense.com/v3/__https://kb.ettus.com/USRP_Host_Performance_Tuning_Tips_and_Tricks__;!!FjuHKAHQs5udqho!JvFipqsg8DXqJqqNNWX1vhZHhXOhpOkIMAqvm5gx7wNTMJK9y6iWtnlqrJ39jjTZgjpoVe87gqRlcdBU4xK6Fxtq$
Also, is your Ethernet interface a "real" Ethernet interface or 1GBit-over-USB? Some of those have notoriously
poor performance.
Regards,
AJ
Graduate Researcher
College of Electrical & Computing Engineering
Florida International University
10555 West Flagler Street
Room 3863B
Miami, FL 33174
Phone: 305-336-2541 | Email: asans008@FIU.edumailto:asans008@FIU.edu
[cid:part1.gnqfkIxk.6IkkDFMV@gmail.com]
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To unsubscribe send an email to usrp-users-leave@lists.ettus.commailto:usrp-users-leave@lists.ettus.com
