From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wm0-x22c.google.com (mail-wm0-x22c.google.com [IPv6:2a00:1450:400c:c09::22c]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id 5E1C03B2A4 for ; Tue, 12 Jun 2018 07:00:26 -0400 (EDT) Received: by mail-wm0-x22c.google.com with SMTP id j15-v6so22497972wme.0 for ; Tue, 12 Jun 2018 04:00:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=heistp.net; s=google; h=mime-version:subject:from:in-reply-to:date:cc:message-id:references :to; bh=J44W17stwMUwHPckOxeqSUepFaXvP5vXmtiX3SXCeyU=; b=RYmnRKeMVXHTvP3bCy2z0uCpqBP+azND0zrnnF1GKQ1KgZJEXGCFJE6ICMr6QR8oTy EyrO3+C1pqI1kkvW3Kx0W01JSqffvbN7N2hOEdHBwHwoaidc2q7Sv0hQr9toxSPM4GXy UNgnZiC8bRUtEB3SPKueH1wwLwNb8Yg2sh1TE9dRzPl2uhlu2osJi2ENHn3sWblW1k9F Lx2IMjPPdPiFnr31mgu6Q/dfvKxdblRaybzgIQhTP8BuLMG25p40TkxurZdkNuxRK9VK gfTsrcFJby11b3+tm54HNIvd18CoepVw3rQP/VpBUD2AmJpW5IOvCNZuj2GI9HaZhAD/ gVZg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:subject:from:in-reply-to:date:cc :message-id:references:to; bh=J44W17stwMUwHPckOxeqSUepFaXvP5vXmtiX3SXCeyU=; b=bM3jZPDLfDM4EhQrZ9WP+m7mSLJzypJlnwUdcbnX4jnoN6AdKGRNvTlf/bAWKuQcyc s1R8IwJ9zKeKqJvQXtFGzr6UtznQ/k0qPjmefyK3/CQbEFTdS7yEKvBKw7Mvog8vINQS 2OjAOTvGWCbDwM7tPz82trp7cRCQwUKEdS3Is4QSKzAEeDT9XWq5KiwTJuJa/rEKj+OZ nksjKmhu4r2MYS6A7jnBLGF0KbeBbNBbbDBd7kGJNB0MHSYEALSAc9S0r9J6ikmTlyfj GlbRuqPvp0xsPNVKdai1aK2aA9iQsyzEi1g4NRrdXF+UQccy1E98Oq2SfG2PURBs+iRr yeIg== X-Gm-Message-State: APt69E0CVekl01dFXlubHRnkt0W9Zb+hxMlsVkM93rj+865f7u8OoN09 32T3I/XwZLcg0til3DYUHseno29Tni4= X-Google-Smtp-Source: ADUXVKJXDSt68iWJHwYRdF+JX22VEnMfanvlz7DJToZzPzsqX7sko3oSRh9/p5bZfJxm8PFkds620Q== X-Received: by 2002:a1c:6d85:: with SMTP id b5-v6mr1684105wmi.135.1528801225403; Tue, 12 Jun 2018 04:00:25 -0700 (PDT) Received: from tron.luk.heistp.net (h-1169.lbcfree.net. [185.193.85.130]) by smtp.gmail.com with ESMTPSA id k82-v6sm303676wmg.10.2018.06.12.04.00.24 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Tue, 12 Jun 2018 04:00:24 -0700 (PDT) Content-Type: multipart/alternative; boundary="Apple-Mail=_A11A28A6-0AAC-4D6E-A02A-A7A9D6245FA7" Mime-Version: 1.0 (Mac OS X Mail 9.3 \(3124\)) From: Pete Heist In-Reply-To: <87in6ojoaa.fsf@toke.dk> Date: Tue, 12 Jun 2018 13:00:23 +0200 Cc: make-wifi-fast@lists.bufferbloat.net Message-Id: <613FA6DD-210E-42E7-A4F9-01111A1FA1A5@heistp.net> References: <111C85D5-859A-4F2E-8D6E-DA32A4BD5AA8@heistp.net> <87in6ojoaa.fsf@toke.dk> To: =?utf-8?Q?Toke_H=C3=B8iland-J=C3=B8rgensen?= X-Mailer: Apple Mail (2.3124) 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 11:00:26 -0000 --Apple-Mail=_A11A28A6-0AAC-4D6E-A02A-A7A9D6245FA7 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 > 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 = little time to try to reproduce this problem and add to this post: >>=20 >> = https://community.ubnt.com/t5/airMAX-Installation/NanoStation-M5-ping-spik= es-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 = this 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-Fi= rmware-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 = 40ms 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 :) --Apple-Mail=_A11A28A6-0AAC-4D6E-A02A-A7A9D6245FA7 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=utf-8
On Jun 12, 2018, at 12:24 PM, Toke H=C3=B8iland-J=C3=B8rgensen = <toke@toke.dk> = wrote:

Pete Heist <pete@heistp.net> writes:

This is an appeal to anyone who has access to a = NanoStation M5 and a little time to try to reproduce this problem and = add to this post:

https://community.ubnt.com/t5/airMAX-Installation/NanoStation-M= 5-ping-spikes-about-once-per-second-even-just-to/td-p/2358704

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 this 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/AirO= S-v6-0-6-Firmware-Issues-and-Solutions-Downgrade-Path-and-XM/m-p/1996679#M= 47254

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 40ms 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 = :)

= --Apple-Mail=_A11A28A6-0AAC-4D6E-A02A-A7A9D6245FA7--