From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.toke.dk (mail.toke.dk [52.28.52.200]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id 381133B2A4 for ; Tue, 12 Jun 2018 08:09:09 -0400 (EDT) From: Toke =?utf-8?Q?H=C3=B8iland-J=C3=B8rgensen?= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=toke.dk; s=20161023; t=1528805348; bh=CN7sfeiHU0lUmbSHCMmQuwf0Lf4p/5I/oVscMz+ei3I=; h=From:To:Cc:Subject:In-Reply-To:References:Date:From; b=ii4tCfLEGXengAuZYcEmmOza5WiT0ew877fjKCoI0fCARYdo9B3TvGMY/h7IwHYT2 TZSK/JDntpTbtY5vRUnx7p+E1bAg+pNRlzFZ4bhpDesa7eCdgKqn2sCUAGFOAMJgcN DrB3EMETGNLy5TBt4kZ3WCfI1i5YoveGGquBe1/P9dgIzL7FULX4Ayz6JNyWJm/eGP 9NC+icXIIYsOwhDpO6w6uftaHGYFCPiTaccW6obXlFa4ioDqjPFxe7WMutrGm1Or10 +z0eAtMt5ni01WqdvUx2c8SJ/qDMN+2RkQNf9YcT7xeGDxFXwxDFWoXGJcWrnGfUSZ D9AV5ah63aumg== To: Pete Heist Cc: make-wifi-fast@lists.bufferbloat.net In-Reply-To: <613FA6DD-210E-42E7-A4F9-01111A1FA1A5@heistp.net> References: <111C85D5-859A-4F2E-8D6E-DA32A4BD5AA8@heistp.net> <87in6ojoaa.fsf@toke.dk> <613FA6DD-210E-42E7-A4F9-01111A1FA1A5@heistp.net> Date: Tue, 12 Jun 2018 14:09:07 +0200 X-Clacks-Overhead: GNU Terry Pratchett Message-ID: <877en4jjfg.fsf@toke.dk> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Subject: Re: [Make-wifi-fast] NanoStation M5 anyone? X-BeenThere: make-wifi-fast@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 12 Jun 2018 12:09:09 -0000 Pete Heist writes: >> On Jun 12, 2018, at 12:24 PM, Toke H=C3=B8iland-J=C3=B8rgensen wrote: >>=20 >> Pete Heist > writes: >>=20 >>> This is an appeal to anyone who has access to a NanoStation M5 and a li= ttle time to try to reproduce this problem and add to this post: >>>=20 >>> https://community.ubnt.com/t5/airMAX-Installation/NanoStation-M5-ping-s= pikes-about-once-per-second-even-just-to/td-p/2358704 >>=20 >> Does this only happen with stock firmware? I think I have reflashed all >> of mine... > > Unfortunately I haven=E2=80=99t confirmed that, because afaik one can no > longer flash unsigned firmware on AirOS devices with signed firmware > (since 6.0.6 or so) without opening the case and attaching a serial > cable / using tftp, but these devices aren=E2=80=99t mine. I just found t= his > thread so maybe I could try to play with first downgrading to 6.0.6, > then to 6.0.6 beta, then to unsigned, just don=E2=80=99t need to brick the > device: > > https://community.ubnt.com/t5/airOS-Software-Configuration/AirOS-v6-0-6-F= irmware-Issues-and-Solutions-Downgrade-Path-and-XM/m-p/1996679#M47254 > > If you do have time to just try a high-rate ping to the Ethernet > adapter with a recent OpenWRT/LEDE installed, that would tell me > something: > > sudo ping -c 5000 -i 0.001 nsm5 > > If it reproduces, you=E2=80=99ll see isochronous spikes of either 20 or 4= 0ms > around once every 900-1000ms. Might be easier to see if you add > preload with =E2=80=9C-l 100=E2=80=9D, but you would see them either way.= If you don=E2=80=99t > have time, no sweat=E2=80=A6 :) I don't, right now. But in a few weeks I might; I'll keep it in mind :)