From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wr0-x22d.google.com (mail-wr0-x22d.google.com [IPv6:2a00:1450:400c:c0c::22d]) (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 F03133B2A4 for ; Thu, 22 Feb 2018 07:10:37 -0500 (EST) Received: by mail-wr0-x22d.google.com with SMTP id m5so10334828wrg.1 for ; Thu, 22 Feb 2018 04:10:37 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=cQO1R04cDZWMcMCzrgqMN/jH9LSinsC9mReUiLEJomg=; b=MqnB+bYuhWvYGv1m8pjrH9cuqzaRE6tblkX6j45kat2HURPnhgscndCFJD0/xdedDD Azs71BrQOcwUvSudfdbGdAKb0drcnS5Yjx7fy2Xbp3b/G7mtUlhR56OMBmxauvSeRCu2 buDRIfgjRVY7eitKJD+HItsWYyZrBcNyYuE9DUYWkTA3L7AgIGa1SNWJlZGkJzn0XktY lWobB84AYCXxZH/ZVJXtcAT6ZWJjod9n0mDP2vb9m+yyi+boknhHRUVbpHun/SNCaUyk i2efU0ubev4gcCCCV12zn0oEomgMkRTU107z99zG8MLk+HKAuHtAzzYQ8+LH8UWZ2HUJ 1/+A== 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 :content-transfer-encoding:message-id:references:to; bh=cQO1R04cDZWMcMCzrgqMN/jH9LSinsC9mReUiLEJomg=; b=ZyC93nyFabzbJwh6pLCM0TU3FpmSP0yHRK/eW3UIIKQCI88Cs7r2PX5D6MRlH/8gyi QRhst5qLZYWPoiqePpfks/9IrYsc8T1misoYYMUREucSFhP097zFdc5tlFyZ8U0c27Lz gSXTEq5lIMDZ4DSkpk7ImvKuoNu0WDgn8gqkdoKtQX7MAzolfBaW0GuBTfZiSdHaobCs B9X8yRYNO/LLguqqgsBqQ59EPRHcmfb/EWWtP2hY5nlZXkyOwGZi2qFoDkdNN862vv7+ yyWG6AYQHWppV7Vi9koi9uXx0dGht7U/TuDokcZPSeWjsJU+Hs4JsS39wKUkHBkSqG3/ kE8g== X-Gm-Message-State: APf1xPChjv/IXXG6SpXaXumf5tDu7GkMGHcYjBSDoRqDCncwoamPdKVo Se+KkmNMBNm1h4M9sD1V79E= X-Google-Smtp-Source: AH8x226avXdPhFDiJ1zBlrKfGpOr4SOdrDnB9X1VEJBOzZ1SuLYbtGghf0eMMUNSEwWFsVmGnrCiJA== X-Received: by 10.223.191.10 with SMTP id p10mr6499922wrh.160.1519301436842; Thu, 22 Feb 2018 04:10:36 -0800 (PST) Received: from tron.luk.eventide.io (h-1169.lbcfree.net. [185.193.85.130]) by smtp.gmail.com with ESMTPSA id u63sm26402804wrc.26.2018.02.22.04.10.36 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Thu, 22 Feb 2018 04:10:36 -0800 (PST) Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (Mac OS X Mail 9.3 \(3124\)) From: Pete Heist In-Reply-To: <20180222101848.18772-1-toke@toke.dk> Date: Thu, 22 Feb 2018 13:10:35 +0100 Cc: make-wifi-fast@lists.bufferbloat.net Content-Transfer-Encoding: quoted-printable Message-Id: <431766C8-135F-4A69-85DA-784A1D2C4ED0@gmail.com> References: <20180219170224.14816-1-toke@toke.dk> <20180222101848.18772-1-toke@toke.dk> To: =?utf-8?Q?Toke_H=C3=B8iland-J=C3=B8rgensen?= X-Mailer: Apple Mail (2.3124) Subject: Re: [Make-wifi-fast] [PATCH v2] iw: Print TXQ statistics for stations and interfaces 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: Thu, 22 Feb 2018 12:10:38 -0000 > On Feb 22, 2018, at 11:18 AM, Toke H=C3=B8iland-J=C3=B8rgensen = wrote: >=20 > Sample output: >=20 > $ iw dev wlp2s0 station dump -v > Station xx:xx:xx:xx:xx:xx (on wlp2s0) > [...] > TXQs: > TID qsz-byt qsz-pkt flows drops marks overlmt = hashcol tx-bytes tx-packets > 0 0 0 0 0 0 0 = 0 0 0 > 1 0 0 0 0 0 0 = 0 0 0 > 2 0 0 0 0 0 0 = 0 0 0 > 3 0 0 0 0 0 0 = 0 0 0 > 4 0 0 0 0 0 0 = 0 0 0 > 5 0 0 0 0 0 0 = 0 0 0 > 6 0 0 0 0 0 0 = 0 0 0 > 7 0 0 0 0 0 0 = 0 0 0 > 8 0 0 0 0 0 0 = 0 0 0 > 9 0 0 0 0 0 0 = 0 0 0 > 10 0 0 0 0 0 0 = 0 0 0 > 11 0 0 0 0 0 0 = 0 0 0 > 12 0 0 0 0 0 0 = 0 0 0 > 13 0 0 0 0 0 0 = 0 0 0 > 14 0 0 0 0 0 0 = 0 0 0 > 15 0 0 0 0 0 0 = 0 0 0 > [...] >=20 > $ iw dev wlp2s0 info > Interface wlp2s0 > ifindex 9 > wdev 0x1 > addr xx:xx:xx:xx:xx:xx > type AP > wiphy 0 > channel 165 (5825 MHz), width: 20 MHz, center1: 5825 MHz > txpower 24.00 dBm > multicast TXQ: > qsz-byt qsz-pkt flows drops marks overlmt hashcol = tx-bytes tx-packets > 0 0 72 0 0 0 0 = 7380 72 >=20 Could these stats make possible a userspace tool for determining the = proportion of delay that is introduced by congestion vs by link layer = issues? Such a tool could be really helpful for network engineers = wanting to mitigate delay issues and not sure where to best focus their = efforts... Pete