I've also struggled against stubborn TX underrun issues and have had some
success using dedicated CPU cores to make large improvements. My configuration
is quite different than yours, but perhaps this'll be a helpful lead.
I have a custom multithreaded application that manages four E320 radios f
Re. "the Linux in the Zynq is out of the picture." That is interesting. Yes, my
comment was based on the radio's Linux OS reporting dropped UDP packets for the
10 Gbit interface. It sounds like you are saying that has nothing to do with
UDP packets on the interface. Confusing...
If there reall
On 25/04/2023 15:35, Rob Kossler wrote:
On Tue, Apr 25, 2023 at 12:34 PM Marcus D. Leech
wrote:
My understanding is that dropped packets in UHD mean that the
receiving entity received consecutive packets that did not have
consecutive indices. So, if the FPGA detected such a condition, it
wou
On Tue, Apr 25, 2023 at 12:34 PM Marcus D. Leech
wrote:
>
> On 25/04/2023 12:30, James Schatzman wrote:
> > I don't know if this is new information but we have observed some
> > additional behaviors:
> >
> > 1) The radio reports dropped UDP packets. Why is it dropping them?
> How are you determini
On 25/04/2023 12:30, James Schatzman wrote:
I don't know if this is new information but we have observed some
additional behaviors:
1) The radio reports dropped UDP packets. Why is it dropping them?
How are you determining this? For streaming, the Linux in the Zynq is
entirely out of the pictu
On 25/04/2023 10:34, Jim Schatzman wrote:
We have been working with N310 and N321 radios. It seems very difficult to get
long term continuous operation without under-runs even at the seemingly very
low data rate of 12.5 Msps.
Currently we are trying various firmware versions, changing buffer s
On 25/04/2023 10:34, Jim Schatzman wrote:
The configurations have direct connections between a fast host (Ubuntu with
unnecessary services including Network Manager disabled or removed), and the
radio with 10 Gbit and frame size of 9000. Without using jumbo frames the
behavior was far worse.
C
On 25/04/2023 10:34, Jim Schatzman wrote:
We have been working with N310 and N321 radios. It seems very difficult to get
long term continuous operation without under-runs even at the seemingly very
low data rate of 12.5 Msps.
Is this for a single channel, or multiple channels?
Currently we
On 25/04/2023 10:34, Jim Schatzman wrote:
We have been working with N310 and N321 radios. It seems very difficult to get
long term continuous operation without under-runs even at the seemingly very
low data rate of 12.5 Msps.
Currently we are trying various firmware versions, changing buffer s
We have been working with N310 and N321 radios. It seems very difficult to get
long term continuous operation without under-runs even at the seemingly very
low data rate of 12.5 Msps.
Currently we are trying various firmware versions, changing buffer sizes, etc.,
but so far nothing has gotten t
On 25/04/2023 10:22, h57jaf...@gmail.com wrote:
Hi,
I almost follow the link to tune all the parameters setting except
installing DPDK, but for more than 20M sample rate I see “U”
underflow. Is it normal? can it been solved to achieve more than 20M
sample rate without installing DPDK? thank
Hi,
I almost follow the link to tune all the parameters setting except installing
DPDK, but for more than 20M sample rate I see “U” underflow. Is it normal? can
it been solved to achieve more than 20M sample rate without installing DPDK?
thank you.
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