Empathy List Archives

D

dhpanchaai@gmail.com

Tue, Nov 26, 2024 1:57 AM

I’m receiving a wide bandwidth signal (~250 MHz sample rate using DPDK) on X410 using GNURadio and I notice that the green LED light turns ON and quickly turns back off whenever I have signal processing blocks (e.g. filter block) connected to the UHD source block. You have 1-2 overflows at the beginning but the GUI seems to work fine showing the signal with the time/freq sink plots. Whenever I just have the time/freq sink blocks only connected to the uhd_source, the green light stays on.

My question is would the green light turning quickly off be still an issue? If so, any ideas how to resolve that one? I’m wondering because I will need to re-transmit the signal again using UHD sink block and am experiencing underflows (not been able to resolve this yet and the red transmit light doesn’t turn on). I’m wondering if that’s partly due to the green light turning back off.

I’m receiving a wide bandwidth signal (\~250 MHz sample rate using DPDK) on X410 using GNURadio and I notice that the green LED light turns ON and quickly turns back off whenever I have signal processing blocks (e.g. filter block) connected to the UHD source block. You have 1-2 overflows at the beginning but the GUI seems to work fine showing the signal with the time/freq sink plots. Whenever I just have the time/freq sink blocks only connected to the uhd_source, the green light stays on. My question is would the green light turning quickly off be still an issue? If so, any ideas how to resolve that one? I’m wondering because I will need to re-transmit the signal again using UHD sink block and am experiencing underflows (not been able to resolve this yet and the red transmit light doesn’t turn on). I’m wondering if that’s partly due to the green light turning back off.

MD

Marcus D. Leech

Tue, Nov 26, 2024 2:07 AM

On 25/11/2024 20:57, dhpanchaai@gmail.com wrote:

I’m receiving a wide bandwidth signal (~250 MHz sample rate using
DPDK) on X410 using GNURadio and I notice that the green LED light
turns ON and quickly turns back off whenever I have signal processing
blocks (e.g. filter block) connected to the UHD source block. You have
1-2 overflows at the beginning but the GUI seems to work fine showing
the signal with the time/freq sink plots. Whenever I just have the
time/freq sink blocks only connected to the uhd_source, the green
light stays on.

My question is would the green light turning quickly off be still an
issue? If so, any ideas how to resolve that one? I’m wondering because
I will need to re-transmit the signal again using UHD sink block and
am experiencing underflows (not been able to resolve this yet and the
red transmit light doesn’t turn on). I’m wondering if that’s partly
due to the green light turning back off.

Doing ANY signal-processing "stuff" at 250Msps within Gnu Radio is
very likely to result in significant numbers of
over-runs, and it may even be the case that no forward progress can
be made at all at those rates, with the interface
dropping sample buffers because there's nowhere to put them, because
the application (your Gnu Radio flow-graph)
simply cannot vacuum out the interface fast enough. The frequency
sink uses a heavily "stuttered" approach to
producing the spectral estimate. If the frame rate is (let's say)
10Hz, then nearly ALL of the incoming sample
frames are dropped on the floor, which is why it appears that it is
"keeping up" when you only have a frequency
sink in your flow.

What kind of computer are you using? What happens when you drop the
sample rate down by a factor of 4?

On 25/11/2024 20:57, dhpanchaai@gmail.com wrote: > > I’m receiving a wide bandwidth signal (~250 MHz sample rate using > DPDK) on X410 using GNURadio and I notice that the green LED light > turns ON and quickly turns back off whenever I have signal processing > blocks (e.g. filter block) connected to the UHD source block. You have > 1-2 overflows at the beginning but the GUI seems to work fine showing > the signal with the time/freq sink plots. Whenever I just have the > time/freq sink blocks only connected to the uhd_source, the green > light stays on. > > My question is would the green light turning quickly off be still an > issue? If so, any ideas how to resolve that one? I’m wondering because > I will need to re-transmit the signal again using UHD sink block and > am experiencing underflows (not been able to resolve this yet and the > red transmit light doesn’t turn on). I’m wondering if that’s partly > due to the green light turning back off. > > Doing *ANY* signal-processing "stuff" at 250Msps within Gnu Radio is very likely to result in significant numbers of over-runs, and it may even be the case that no forward progress can be made at all at those rates, with the interface dropping sample buffers because there's nowhere to put them, because the application (your Gnu Radio flow-graph) simply cannot vacuum out the interface fast enough. The frequency sink uses a heavily "stuttered" approach to producing the spectral estimate. If the frame rate is (let's say) 10Hz, then nearly ALL of the incoming sample frames are dropped on the floor, which is why it *appears* that it is "keeping up" when you only have a frequency sink in your flow. What kind of computer are you using? What happens when you drop the sample rate down by a factor of 4?

D

dhpanchaai@gmail.com

Tue, Nov 26, 2024 7:36 PM

Its a high-end ASUS desktop machine with 128 GB RAM:
description: Desktop Computer

product: System Product Name (SKU)

vendor: ASUS

version: System Version

serial: System Serial Number

width: 64 bits

capabilities: smbios-3.5.0 dmi-3.5.0 smp vsyscall32

configuration: boot=normal chassis=desktop family=To be filled by O.E.M. sku=SKU uuid=f3e615b3-efb6-49fa-381a-581122bbff40

*-core

   description: Motherboard

   product: ROG MAXIMUS Z790 HERO

   vendor: ASUSTeK COMPUTER INC.

   physical id: 0

   version: Rev 1.xx

   serial: 221011025300497

   slot: Default string

 \*-firmware

      description: BIOS

      vendor: American Megatrends Inc.

      physical id: 0

      version: 2202

      date: 04/17/2024

      size: 64KiB

      capacity: 16MiB

      capabilities: pci upgrade shadowing cdboot bootselect socketedrom edd int13floppynec int13floppytoshiba int13floppy360 int13floppy1200 int13floppy720 int13floppy2880 int5printscreen int14serial int17printer int10video acpi usb biosbootspecification uefi

 \*-memory

      description: System Memory

      physical id: c

      slot: System board or motherboard

      size: 128GiB

    \*-bank:0

         description: DIMM Synchronous 4200 MHz (0.2 ns)

         product: KF556C40-32

         vendor: Kingston

         physical id: 0

         serial: CE344740

         slot: Controller0-DIMM0

         size: 32GiB

         width: 64 bits

         clock: 4200MHz (0.2ns)

    \*-bank:1

         description: DIMM Synchronous 4200 MHz (0.2 ns)

         product: KF556C40-32

         vendor: Kingston

         physical id: 1

         serial: E1345EF2

         slot: Controller0-DIMM1

         size: 32GiB

         width: 64 bits

         clock: 4200MHz (0.2ns)

    \*-bank:2

         description: DIMM Synchronous 4200 MHz (0.2 ns)

         product: KF556C40-32

         vendor: Kingston

         physical id: 2

         serial: D0349087

         slot: Controller1-DIMM0

         size: 32GiB

         width: 64 bits

         clock: 4200MHz (0.2ns)

    \*-bank:3

         description: DIMM Synchronous 4200 MHz (0.2 ns)

         product: KF556C40-32

         vendor: Kingston

         physical id: 3

         serial: 4A348668

         slot: Controller1-DIMM1

         size: 32GiB

         width: 64 bits

         clock: 4200MHz (0.2ns)

 \*-cache:0

      description: L1 cache

      physical id: 1d

      slot: L1 Cache

      size: 384KiB

      capacity: 384KiB

      capabilities: synchronous internal write-back data

      configuration: level=1

 \*-cache:1

      description: L1 cache

      physical id: 1e

      slot: L1 Cache

      size: 256KiB

      capacity: 256KiB

      capabilities: synchronous internal write-back instruction

      configuration: level=1

 \*-cache:2

      description: L2 cache

      physical id: 1f

      slot: L2 Cache

      size: 16MiB

      capacity: 16MiB

      capabilities: synchronous internal write-back unified

      configuration: level=2

 \*-cache:3

      description: L3 cache

      physical id: 20

      slot: L3 Cache

      size: 36MiB

      capacity: 36MiB

      capabilities: synchronous internal write-back unified

      configuration: level=3

 \*-cache:4

      description: L1 cache

      physical id: 21

      slot: L1 Cache

      size: 512KiB

      capacity: 512KiB

      capabilities: synchronous internal write-back data

      configuration: level=1

 \*-cache:5

      description: L1 cache

      physical id: 22

      slot: L1 Cache

      size: 1MiB

      capacity: 1MiB

      capabilities: synchronous internal write-back instruction

      configuration: level=1

 \*-cache:6

      description: L2 cache

      physical id: 23

      slot: L2 Cache

      size: 16MiB

      capacity: 16MiB

      capabilities: synchronous internal write-back unified

      configuration: level=2

 \*-cache:7

      description: L3 cache

      physical id: 24

      slot: L3 Cache

      size: 36MiB

      capacity: 36MiB

      capabilities: synchronous internal write-back unified

      configuration: level=3

 \*-cpu

      description: CPU

      product: Intel(R) Core(TM) i9-14900K

      vendor: Intel Corp.

      physical id: 25

      bus info: cpu@0

      version: 6.183.1

      serial: To Be Filled By O.E.M.

      slot: LGA1700

      size: 5696MHz

      capacity: 5700MHz

      width: 64 bits

      clock: 100MHz

      capabilities: lm fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp x86-64 constant_tsc art arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf tsc_known_freq pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch cpuid_fault epb ssbd ibrs ibpb stibp ibrs_enhanced tpr_shadow flexpriority ept vpid ept_ad fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid rdseed adx smap clflushopt clwb intel_pt sha_ni xsaveopt xsavec xgetbv1 xsaves split_lock_detect user_shstk avx_vnni dtherm ida arat pln pts hwp hwp_notify hwp_act_window hwp_epp hwp_pkg_req hfi vnmi umip pku ospke waitpkg gfni vaes vpclmulqdq tme rdpid movdiri movdir64b fsrm md_clear serialize pconfig arch_lbr ibt flush_l1d arch_capabilities cpufreq

      configuration: cores=24 enabledcores=24 microcode=297 threads=24

I’m implementing a custom-made filter block with the output data. I lowered the sample rate to 61.44 MHz and am still noticing the green light turn off when i connect the custom-made filter block to the UHD source block.

Also, under stream args, I set the following parameters: num_recv_frames=50000, recv_buff_size=2000000000. MTU is set to 9000. Is there a transport parameter max when using DPDK?

Its a high-end ASUS desktop machine with 128 GB RAM:\ description: Desktop Computer product: System Product Name (SKU) vendor: ASUS version: System Version serial: System Serial Number width: 64 bits capabilities: smbios-3.5.0 dmi-3.5.0 smp vsyscall32 configuration: boot=normal chassis=desktop family=To be filled by O.E.M. sku=SKU uuid=f3e615b3-efb6-49fa-381a-581122bbff40 \*-core description: Motherboard product: ROG MAXIMUS Z790 HERO vendor: ASUSTeK COMPUTER INC. physical id: 0 version: Rev 1.xx serial: 221011025300497 slot: Default string \*-firmware description: BIOS vendor: American Megatrends Inc. physical id: 0 version: 2202 date: 04/17/2024 size: 64KiB capacity: 16MiB capabilities: pci upgrade shadowing cdboot bootselect socketedrom edd int13floppynec int13floppytoshiba int13floppy360 int13floppy1200 int13floppy720 int13floppy2880 int5printscreen int14serial int17printer int10video acpi usb biosbootspecification uefi \*-memory description: System Memory physical id: c slot: System board or motherboard size: 128GiB \*-bank:0 description: DIMM Synchronous 4200 MHz (0.2 ns) product: KF556C40-32 vendor: Kingston physical id: 0 serial: CE344740 slot: Controller0-DIMM0 size: 32GiB width: 64 bits clock: 4200MHz (0.2ns) \*-bank:1 description: DIMM Synchronous 4200 MHz (0.2 ns) product: KF556C40-32 vendor: Kingston physical id: 1 serial: E1345EF2 slot: Controller0-DIMM1 size: 32GiB width: 64 bits clock: 4200MHz (0.2ns) \*-bank:2 description: DIMM Synchronous 4200 MHz (0.2 ns) product: KF556C40-32 vendor: Kingston physical id: 2 serial: D0349087 slot: Controller1-DIMM0 size: 32GiB width: 64 bits clock: 4200MHz (0.2ns) \*-bank:3 description: DIMM Synchronous 4200 MHz (0.2 ns) product: KF556C40-32 vendor: Kingston physical id: 3 serial: 4A348668 slot: Controller1-DIMM1 size: 32GiB width: 64 bits clock: 4200MHz (0.2ns) \*-cache:0 description: L1 cache physical id: 1d slot: L1 Cache size: 384KiB capacity: 384KiB capabilities: synchronous internal write-back data configuration: level=1 \*-cache:1 description: L1 cache physical id: 1e slot: L1 Cache size: 256KiB capacity: 256KiB capabilities: synchronous internal write-back instruction configuration: level=1 \*-cache:2 description: L2 cache physical id: 1f slot: L2 Cache size: 16MiB capacity: 16MiB capabilities: synchronous internal write-back unified configuration: level=2 \*-cache:3 description: L3 cache physical id: 20 slot: L3 Cache size: 36MiB capacity: 36MiB capabilities: synchronous internal write-back unified configuration: level=3 \*-cache:4 description: L1 cache physical id: 21 slot: L1 Cache size: 512KiB capacity: 512KiB capabilities: synchronous internal write-back data configuration: level=1 \*-cache:5 description: L1 cache physical id: 22 slot: L1 Cache size: 1MiB capacity: 1MiB capabilities: synchronous internal write-back instruction configuration: level=1 \*-cache:6 description: L2 cache physical id: 23 slot: L2 Cache size: 16MiB capacity: 16MiB capabilities: synchronous internal write-back unified configuration: level=2 \*-cache:7 description: L3 cache physical id: 24 slot: L3 Cache size: 36MiB capacity: 36MiB capabilities: synchronous internal write-back unified configuration: level=3 \*-cpu description: CPU product: Intel(R) Core(TM) i9-14900K vendor: Intel Corp. physical id: 25 bus info: cpu@0 version: 6.183.1 serial: To Be Filled By O.E.M. slot: LGA1700 size: 5696MHz capacity: 5700MHz width: 64 bits clock: 100MHz capabilities: lm fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp x86-64 constant_tsc art arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf tsc_known_freq pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch cpuid_fault epb ssbd ibrs ibpb stibp ibrs_enhanced tpr_shadow flexpriority ept vpid ept_ad fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid rdseed adx smap clflushopt clwb intel_pt sha_ni xsaveopt xsavec xgetbv1 xsaves split_lock_detect user_shstk avx_vnni dtherm ida arat pln pts hwp hwp_notify hwp_act_window hwp_epp hwp_pkg_req hfi vnmi umip pku ospke waitpkg gfni vaes vpclmulqdq tme rdpid movdiri movdir64b fsrm md_clear serialize pconfig arch_lbr ibt flush_l1d arch_capabilities cpufreq configuration: cores=24 enabledcores=24 microcode=297 threads=24 I’m implementing a custom-made filter block with the output data. I lowered the sample rate to 61.44 MHz and am still noticing the green light turn off when i connect the custom-made filter block to the UHD source block. Also, under stream args, I set the following parameters: num_recv_frames=50000, recv_buff_size=2000000000. MTU is set to 9000. Is there a transport parameter max when using DPDK?

MD

Marcus D. Leech

Tue, Nov 26, 2024 11:00 PM

On 26/11/2024 14:36, dhpanchaai@gmail.com wrote:

Its a high-end ASUS desktop machine with 128 GB RAM:
description: Desktop Computer

product: System Product Name (SKU)

vendor: ASUS

version: System Version

serial: System Serial Number

width: 64 bits

capabilities: smbios-3.5.0 dmi-3.5.0 smp vsyscall32

configuration: boot=normal chassis=desktop family=To be filled by
O.E.M. sku=SKU uuid=f3e615b3-efb6-49fa-381a-581122bbff40

*-core

description: Motherboard

product: ROG MAXIMUS Z790 HERO

vendor: ASUSTeK COMPUTER INC.

physical id: 0

version: Rev 1.xx

serial: 221011025300497

slot: Default string

*-firmware

description: BIOS

vendor: American Megatrends Inc.

physical id: 0

version: 2202

date: 04/17/2024

size: 64KiB

capacity: 16MiB

capabilities: pci upgrade shadowing cdboot bootselect socketedrom edd
int13floppynec int13floppytoshiba int13floppy360 int13floppy1200
int13floppy720 int13floppy2880 int5printscreen int14serial
int17printer int10video acpi usb biosbootspecification uefi

*-memory

description: System Memory

physical id: c

slot: System board or motherboard

size: 128GiB

*-bank:0

description: DIMM Synchronous 4200 MHz (0.2 ns)

product: KF556C40-32

vendor: Kingston

physical id: 0

serial: CE344740

slot: Controller0-DIMM0

size: 32GiB

width: 64 bits

clock: 4200MHz (0.2ns)

*-bank:1

description: DIMM Synchronous 4200 MHz (0.2 ns)

product: KF556C40-32

vendor: Kingston

physical id: 1

serial: E1345EF2

slot: Controller0-DIMM1

size: 32GiB

width: 64 bits

clock: 4200MHz (0.2ns)

*-bank:2

description: DIMM Synchronous 4200 MHz (0.2 ns)

product: KF556C40-32

vendor: Kingston

physical id: 2

serial: D0349087

slot: Controller1-DIMM0

size: 32GiB

width: 64 bits

clock: 4200MHz (0.2ns)

*-bank:3

description: DIMM Synchronous 4200 MHz (0.2 ns)

product: KF556C40-32

vendor: Kingston

physical id: 3

serial: 4A348668

slot: Controller1-DIMM1

size: 32GiB

width: 64 bits

clock: 4200MHz (0.2ns)

*-cache:0

description: L1 cache

physical id: 1d

slot: L1 Cache

size: 384KiB

capacity: 384KiB

capabilities: synchronous internal write-back data

configuration: level=1

*-cache:1

description: L1 cache

physical id: 1e

slot: L1 Cache

size: 256KiB

capacity: 256KiB

capabilities: synchronous internal write-back instruction

configuration: level=1

*-cache:2

description: L2 cache

physical id: 1f

slot: L2 Cache

size: 16MiB

capacity: 16MiB

capabilities: synchronous internal write-back unified

configuration: level=2

*-cache:3

description: L3 cache

physical id: 20

slot: L3 Cache

size: 36MiB

capacity: 36MiB

capabilities: synchronous internal write-back unified

configuration: level=3

*-cache:4

description: L1 cache

physical id: 21

slot: L1 Cache

size: 512KiB

capacity: 512KiB

capabilities: synchronous internal write-back data

configuration: level=1

*-cache:5

description: L1 cache

physical id: 22

slot: L1 Cache

size: 1MiB

capacity: 1MiB

capabilities: synchronous internal write-back instruction

configuration: level=1

*-cache:6

description: L2 cache

physical id: 23

slot: L2 Cache

size: 16MiB

capacity: 16MiB

capabilities: synchronous internal write-back unified

configuration: level=2

*-cache:7

description: L3 cache

physical id: 24

slot: L3 Cache

size: 36MiB

capacity: 36MiB

capabilities: synchronous internal write-back unified

configuration: level=3

*-cpu

description: CPU

product: Intel(R) Core(TM) i9-14900K

vendor: Intel Corp.

physical id: 25

bus info: cpu@0

version: 6.183.1

serial: To Be Filled By O.E.M.

slot: LGA1700

size: 5696MHz

capacity: 5700MHz

width: 64 bits

clock: 100MHz

capabilities: lm fpu fpu_exception wp vme de pse tsc msr pae mce cx8
apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse
sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp x86-64 constant_tsc art
arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid
aperfmperf tsc_known_freq pni pclmulqdq dtes64 monitor ds_cpl vmx smx
est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic movbe
popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm
3dnowprefetch cpuid_fault epb ssbd ibrs ibpb stibp ibrs_enhanced
tpr_shadow flexpriority ept vpid ept_ad fsgsbase tsc_adjust bmi1 avx2
smep bmi2 erms invpcid rdseed adx smap clflushopt clwb intel_pt sha_ni
xsaveopt xsavec xgetbv1 xsaves split_lock_detect user_shstk avx_vnni
dtherm ida arat pln pts hwp hwp_notify hwp_act_window hwp_epp
hwp_pkg_req hfi vnmi umip pku ospke waitpkg gfni vaes vpclmulqdq tme
rdpid movdiri movdir64b fsrm md_clear serialize pconfig arch_lbr ibt
flush_l1d arch_capabilities cpufreq

configuration: cores=24 enabledcores=24 microcode=297 threads=24

I’m implementing a custom-made filter block with the output data. I
lowered the sample rate to 61.44 MHz and am still noticing the green
light turn off when i connect the custom-made filter block to the UHD
source block.

Also, under stream args, I set the following parameters:
num_recv_frames=50000, recv_buff_size=2000000000. MTU is set to 9000.
Is there a transport parameter max when using DPDK?

You should probably do a "first principles" test. Use the
"benchmark_rate" example application just check how much
data your computer can move into/out-of your machine.

Then use the "rx_samples_to_file" app, and use the --null option. This
will test a little further into actually doing something
with the samples, although, not much.

If these work fine at your desired sample-rates, then you can look into
Gnu Radio performance tuning. But I'd suggest
that the usrp-users list is NOT the place to get advice on tuning Gnu
Radio applications.

On 26/11/2024 14:36, dhpanchaai@gmail.com wrote: > > Its a high-end ASUS desktop machine with 128 GB RAM: > description: Desktop Computer > > product: System Product Name (SKU) > > vendor: ASUS > > version: System Version > > serial: System Serial Number > > width: 64 bits > > capabilities: smbios-3.5.0 dmi-3.5.0 smp vsyscall32 > > configuration: boot=normal chassis=desktop family=To be filled by > O.E.M. sku=SKU uuid=f3e615b3-efb6-49fa-381a-581122bbff40 > > *-core > > description: Motherboard > > product: ROG MAXIMUS Z790 HERO > > vendor: ASUSTeK COMPUTER INC. > > physical id: 0 > > version: Rev 1.xx > > serial: 221011025300497 > > slot: Default string > > *-firmware > > description: BIOS > > vendor: American Megatrends Inc. > > physical id: 0 > > version: 2202 > > date: 04/17/2024 > > size: 64KiB > > capacity: 16MiB > > capabilities: pci upgrade shadowing cdboot bootselect socketedrom edd > int13floppynec int13floppytoshiba int13floppy360 int13floppy1200 > int13floppy720 int13floppy2880 int5printscreen int14serial > int17printer int10video acpi usb biosbootspecification uefi > > *-memory > > description: System Memory > > physical id: c > > slot: System board or motherboard > > size: 128GiB > > *-bank:0 > > description: DIMM Synchronous 4200 MHz (0.2 ns) > > product: KF556C40-32 > > vendor: Kingston > > physical id: 0 > > serial: CE344740 > > slot: Controller0-DIMM0 > > size: 32GiB > > width: 64 bits > > clock: 4200MHz (0.2ns) > > *-bank:1 > > description: DIMM Synchronous 4200 MHz (0.2 ns) > > product: KF556C40-32 > > vendor: Kingston > > physical id: 1 > > serial: E1345EF2 > > slot: Controller0-DIMM1 > > size: 32GiB > > width: 64 bits > > clock: 4200MHz (0.2ns) > > *-bank:2 > > description: DIMM Synchronous 4200 MHz (0.2 ns) > > product: KF556C40-32 > > vendor: Kingston > > physical id: 2 > > serial: D0349087 > > slot: Controller1-DIMM0 > > size: 32GiB > > width: 64 bits > > clock: 4200MHz (0.2ns) > > *-bank:3 > > description: DIMM Synchronous 4200 MHz (0.2 ns) > > product: KF556C40-32 > > vendor: Kingston > > physical id: 3 > > serial: 4A348668 > > slot: Controller1-DIMM1 > > size: 32GiB > > width: 64 bits > > clock: 4200MHz (0.2ns) > > *-cache:0 > > description: L1 cache > > physical id: 1d > > slot: L1 Cache > > size: 384KiB > > capacity: 384KiB > > capabilities: synchronous internal write-back data > > configuration: level=1 > > *-cache:1 > > description: L1 cache > > physical id: 1e > > slot: L1 Cache > > size: 256KiB > > capacity: 256KiB > > capabilities: synchronous internal write-back instruction > > configuration: level=1 > > *-cache:2 > > description: L2 cache > > physical id: 1f > > slot: L2 Cache > > size: 16MiB > > capacity: 16MiB > > capabilities: synchronous internal write-back unified > > configuration: level=2 > > *-cache:3 > > description: L3 cache > > physical id: 20 > > slot: L3 Cache > > size: 36MiB > > capacity: 36MiB > > capabilities: synchronous internal write-back unified > > configuration: level=3 > > *-cache:4 > > description: L1 cache > > physical id: 21 > > slot: L1 Cache > > size: 512KiB > > capacity: 512KiB > > capabilities: synchronous internal write-back data > > configuration: level=1 > > *-cache:5 > > description: L1 cache > > physical id: 22 > > slot: L1 Cache > > size: 1MiB > > capacity: 1MiB > > capabilities: synchronous internal write-back instruction > > configuration: level=1 > > *-cache:6 > > description: L2 cache > > physical id: 23 > > slot: L2 Cache > > size: 16MiB > > capacity: 16MiB > > capabilities: synchronous internal write-back unified > > configuration: level=2 > > *-cache:7 > > description: L3 cache > > physical id: 24 > > slot: L3 Cache > > size: 36MiB > > capacity: 36MiB > > capabilities: synchronous internal write-back unified > > configuration: level=3 > > *-cpu > > description: CPU > > product: Intel(R) Core(TM) i9-14900K > > vendor: Intel Corp. > > physical id: 25 > > bus info: cpu@0 > > version: 6.183.1 > > serial: To Be Filled By O.E.M. > > slot: LGA1700 > > size: 5696MHz > > capacity: 5700MHz > > width: 64 bits > > clock: 100MHz > > capabilities: lm fpu fpu_exception wp vme de pse tsc msr pae mce cx8 > apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse > sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp x86-64 constant_tsc art > arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid > aperfmperf tsc_known_freq pni pclmulqdq dtes64 monitor ds_cpl vmx smx > est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic movbe > popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm > 3dnowprefetch cpuid_fault epb ssbd ibrs ibpb stibp ibrs_enhanced > tpr_shadow flexpriority ept vpid ept_ad fsgsbase tsc_adjust bmi1 avx2 > smep bmi2 erms invpcid rdseed adx smap clflushopt clwb intel_pt sha_ni > xsaveopt xsavec xgetbv1 xsaves split_lock_detect user_shstk avx_vnni > dtherm ida arat pln pts hwp hwp_notify hwp_act_window hwp_epp > hwp_pkg_req hfi vnmi umip pku ospke waitpkg gfni vaes vpclmulqdq tme > rdpid movdiri movdir64b fsrm md_clear serialize pconfig arch_lbr ibt > flush_l1d arch_capabilities cpufreq > > configuration: cores=24 enabledcores=24 microcode=297 threads=24 > > > I’m implementing a custom-made filter block with the output data. I > lowered the sample rate to 61.44 MHz and am still noticing the green > light turn off when i connect the custom-made filter block to the UHD > source block. > > Also, under stream args, I set the following parameters: > num_recv_frames=50000, recv_buff_size=2000000000. MTU is set to 9000. > Is there a transport parameter max when using DPDK? > > You should probably do a "first principles" test. Use the "benchmark_rate" example application just check how much data your computer can move into/out-of your machine. Then use the "rx_samples_to_file" app, and use the --null option. This will test a little further into actually doing something with the samples, although, not much. If these work fine at your desired sample-rates, then you can look into Gnu Radio performance tuning. But I'd suggest that the usrp-users list is NOT the place to get advice on tuning Gnu Radio applications.

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LED quickly turns back off X410