>
> On 16/05/17 06:49, Neel Pandeya wrote:
>
> Hello Cristian:
>
> If you use Ubuntu 16.04.2, the kernel is 4.8, which should be fine.
>
> First at all, thank you very much for answering.
My kernel version is: 4.8.0-49-generic
Ubuntu Release: 16.04.2 LTS
> The specific USB controller is also very important. The Intel controllers
> work best. Which controller do you have in your system? (run "lspci")
>
> It is the information dropped by "lspci"
00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v3/4th Gen Core
Processor DRAM Controller (rev 06)
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v3/4th Gen Core
Processor PCI Express x16 Controller (rev 06)
00:02.0 VGA compatible controller: Intel Corporation 4th Gen Core Processor
Integrated Graphics Controller (rev 06)
00:03.0 Audio device: Intel Corporation Xeon E3-1200 v3/4th Gen Core
Processor HD Audio Controller (rev 06)
00:14.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset
Family USB xHCI (rev 05)
00:16.0 Communication controller: Intel Corporation 8 Series/C220 Series
Chipset Family MEI Controller #1 (rev 04)
00:1a.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset
Family USB EHCI #2 (rev 05)
00:1b.0 Audio device: Intel Corporation 8 Series/C220 Series Chipset High
Definition Audio Controller (rev 05)
00:1c.0 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family
PCI Express Root Port #1 (rev d5)
00:1c.1 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family
PCI Express Root Port #2 (rev d5)
00:1c.2 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family
PCI Express Root Port #3 (rev d5)
00:1c.3 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family
PCI Express Root Port #4 (rev d5)
00:1d.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset
Family USB EHCI #1 (rev 05)
00:1f.0 ISA bridge: Intel Corporation HM86 Express LPC Controller (rev 05)
00:1f.2 SATA controller: Intel Corporation 8 Series/C220 Series Chipset
Family 6-port SATA Controller 1 [AHCI mode] (rev 05)
00:1f.3 SMBus: Intel Corporation 8 Series/C220 Series Chipset Family SMBus
Controller (rev 05)
01:00.0 3D controller: NVIDIA Corporation GM107M [GeForce GTX 850M] (rev a2)
04:00.0 Network controller: Qualcomm Atheros AR9485 Wireless Network
Adapter (rev 01)
05:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 0c)
>
> What flow control errors are you seeing? Are there any overruns ("O") or
> underruns ("U") printed on the console?
>
> There are overruns "000000000000000"
> Did you increase the socket buffer sizes?
>
> https://files.ettus.com/manual/page_transport.html#transport_udp_sockbufs
>
> No, i haven't. But i did modified the num_recv_frames to 1024. By doing
it, I don't lose samples, but i'm not pretty sure about i'm in fact
reciving all. Do you think it is a better solution that trying to install
other USB3 controller?
Thanks a lot for your time to read my message.
Best regards,
Cristian
2017-05-15 23:49 GMT-05:00 Neel Pandeya <neel.pand...@ettus.com>:
> Hello Cristian:
>
> If you use Ubuntu 16.04.2, the kernel is 4.8, which should be fine.
>
> The specific USB controller is also very important. The Intel controllers
> work best. Which controller do you have in your system? (run "lspci")
>
> What flow control errors are you seeing? Are there any overruns ("O") or
> underruns ("U") printed on the console?
>
> Did you increase the socket buffer sizes?
>
> https://files.ettus.com/manual/page_transport.html#transport_udp_sockbufs
>
> --Neel Pandeya
>
>
>
> On 15 May 2017 at 17:20, Cristian Rodríguez <cristian.rodriguez.ud@gmail.
> com> wrote:
>
>> HI all.
>>
>> I was writing to the forum a time ago because i have missed packets when
>> i build a simple flow graph in gnu radio and set the sample rate over
>> 20Msamples/s.
>>
>> The conclusion was that i had to review my USB 3.0 drivers but i'm
>> working on ubuntu (16.05) and the only way to change the drivers is by
>> installing another kernel. I have the newest version then i think the way
>> is to install an older version.
>>
>> What version of kernel could someone recommend me? I need to be able to
>> get all the samples from my USRP B210. If someone has another suggestion i
>> would be very thankful about it.
>>
>> Pdta: My computer is fast enough (i7 4710HQ - 12Gb ram). Then it is not
>> the problem.
>>
>> Thanks a lot.
>>
>> Best regards,
>>
>> Cristian.
>>
>>
>>
>> _______________________________________________
>> Discuss-gnuradio mailing list
>> Discuss-gnuradio@gnu.org
>> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
>>
>>
>
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