The number that seems configured every time I run uhd_usrp_probe is 1048576 that is the value present in the file wmem_max in the directory /proc/sys/net/core/
I searched also the way to modify this value and I found: sudo -s -H echo 24862979 > /proc/sys/net/core/wmem_max If now I test the number present in the file: cat /proc/sys/net/core/wmem_max the result is 24862979 and the command uhd_usrp_probe does not report warning. But if I restart the linux box, cat /proc/sys/net/core/wmem_max produce 1048576 again From: USRP-users [mailto:usrp-users-boun...@lists.ettus.com] On Behalf Of Rob Kossler via USRP-users Sent: giovedì 9 maggio 2019 16:28 To: Marcus D. Leech <patchvonbr...@gmail.com> Cc: usrp-users <usrp-users@lists.ettus.com> Subject: [EXT] Re: [USRP-users] Configuration in sysctl.conf Have you done the same for "rmem_max"? Perhaps the continued warning messages are related to this rather than wmem_max? Rob On Thu, May 9, 2019 at 10:01 AM Marcus D. Leech via USRP-users <usrp-users@lists.ettus.com<mailto:usrp-users@lists.ettus.com>> wrote: On 05/09/2019 08:25 AM, Disco Daniele via USRP-users wrote: Hi! I’m using a X310 on a linux box UBUNTU 18.04 Executing the command “uhd_usrp_probe” I obtain a lot of [WARNING][UDP] related to the dimension of the send buffer Then there is the sentence: Please run: sudo sysctl -w net.core.wmem_max=24862979 So I’ve written in the file /etc/sysctl.conf, at the end net.core.wmem_max=24862979 I restarted the host but rerunning uhd_usrp_probe I reobtain the same warning. Could you help me? PS: Now I’m using a 10GB Ethernet board plugged in the workstation, using a couple of fiber optics between the X310 and the work station Thank you Perhaps you have a syntax error in your sysctl file? _____________________________________________ [logo1] Direzione e Coordinamento Vivendi SA Daniele Disco CT.TA.EI Via Reiss Romoli, 274 – 10148 Torino tel . +39 011 228 7271 cell. +39 331 600 1113 Fax. +39 06 4186 5196 Tim Official: Facebook<https://www.facebook.com/TimOfficialPage> - Twitter<https://twitter.com/tim_official> www.tim.it<http://www.tim.it/> Questo messaggio e i suoi allegati sono indirizzati esclusivamente alle persone indicate. La diffusione, copia o qualsiasi altra azione derivante dalla conoscenza di queste informazioni sono rigorosamente vietate. Qualora abbiate ricevuto questo documento per errore siete cortesemente pregati di darne immediata comunicazione al mittente e di provvedere alla sua distruzione, Grazie. This e-mail and any attachments is confidential and may contain privileged information intended for the addressee(s) only. Dissemination, copying, printing or use by anybody else is unauthorised. If you are not the intended recipient, please delete this message and any attachments and advise the sender by return e-mail, Thanks. Rispetta l'ambiente. Non stampare questa mail se non è necessario. _______________________________________________ USRP-users mailing list USRP-users@lists.ettus.com<mailto:USRP-users@lists.ettus.com> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com _______________________________________________ USRP-users mailing list USRP-users@lists.ettus.com<mailto:USRP-users@lists.ettus.com> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
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