From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-il1-x12b.google.com (mail-il1-x12b.google.com [IPv6:2607:f8b0:4864:20::12b]) (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 634383B29E for ; Wed, 19 Jul 2023 20:30:21 -0400 (EDT) Received: by mail-il1-x12b.google.com with SMTP id e9e14a558f8ab-345d6dc271dso1749975ab.0 for ; Wed, 19 Jul 2023 17:30:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1689813020; x=1690417820; h=content-transfer-encoding:cc:to:subject:message-id:date:from :mime-version:from:to:cc:subject:date:message-id:reply-to; bh=NTbbG9+v3H4eVbSgZAxBmFz/At3xbOpyvdNYV/lsnOs=; b=Q6GdIv/yVh4gDdLS0A1WaJKN5uXegsXbYbMdFLIajnIF1VQ+C29U7fsrq51aU5awlI cROEmGbG12Qh0EqdMH9m2sq+0iShwnE8aQsPtyoO5kXNRPdSQTVZNCFsY6MG+3ku8UZ8 W0FSmp75R+J/KILCVzgq4J4m9JOI9OaIGz/xHNkUWzakNzrWALost1Wy8YEKvSGRE8Dl KbUYBGDbWrT95bPuX26srkaTD+mdoHbpt5UBIXf9gGG+cbcznq60FT42QsXDI+xdlSyg d1gb6x0yt3X6m5hzLitR9G8ssIOh/rjDqJqZ9dJ6NgFoOEgEJfg24alyqu8HyK/3/9Vv eR1g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1689813020; x=1690417820; h=content-transfer-encoding:cc:to:subject:message-id:date:from :mime-version:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=NTbbG9+v3H4eVbSgZAxBmFz/At3xbOpyvdNYV/lsnOs=; b=ZZgQRQQLLTjUSbEVJtNHnTZca36dPSI3SImPPdpTni+jPZWjf7/g83imi6GrzGQgWa uBormx5mqqbwxOhf6iUew7VrcklHUjlbtc0LHT7uLpAxRFhJo1Esvj5ccBe2AfGR4mC8 ex7t2b92kx5x8GinLmjmtKt26yvLWm0YcmWbYtZFRXHkyVUCRYkTo7A7nrLZ1pf3Kr3R rb59+Doc3OrLob+Cwo3rzRP+Mwxrfm8nTibBmLkbGnbeRIhw10Op2umHuNxBCV/cs9+6 pOwXCcP3TvFurzsp4m8eCAjEma3DgWsk0bAeFsZpHQ+zxgstF3Otq479kb6K6I2mPLs6 1+pg== X-Gm-Message-State: ABy/qLa9ufEcT7RRD6UdexghWMcSmq76mU4rh/O7CrbgNf3dTDH5Qdg3 Rs7WwM78KCRkdDtAJkpCtBto63Ro2Ff/Yp1WUj34JbaHHUKDyg== X-Google-Smtp-Source: APBJJlGp7e+Qyh2fGjjMsr02VBT13xsT1x786OXZ8eBeYFbRgzWe1DHMErx3GbddAbews2TTMB3li0PobgpLvcZfiZ0= X-Received: by 2002:a92:cf43:0:b0:348:8050:5268 with SMTP id c3-20020a92cf43000000b0034880505268mr6408200ilr.12.1689813019940; Wed, 19 Jul 2023 17:30:19 -0700 (PDT) MIME-Version: 1.0 From: Dave Taht Date: Wed, 19 Jul 2023 18:30:06 -0600 Message-ID: To: Make-Wifi-fast Cc: s.aoyagi@chiba-u.jp, yuuki-ho@chiba-u.jp, sekiya@faculty.chiba-u.jp, hiendtt@uit.edu.vn, thanhnd@uit.edu.vn, duyld@uit.edu.vn, Kien NGUYEN Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Subject: [Make-wifi-fast] An "Accurate" Platform for Investigating TCP Performance in Wi-Fi Networks 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, 20 Jul 2023 00:30:21 -0000 It is hard to contain my disappointment that a modern work on wifi, that even mentions bufferbloat, could have missed our work on fixing wifi (such as "ending the anomaly", now the default APIs in the linux kernel), and make claims for the emulator that are so completely wrong, and further claim that the behaviors matched a real world AP. re: https://mdpi-res.com/d_attachment/futureinternet/futureinternet-15-0024= 6/article_deploy/futureinternet-15-00246.pdf?version=3D1689771540 Can I suggest strongly to the authors that they try to understand rate vs range vs buffering, the intersection of the half duplex txop infrastructure with multiple stations, the side effects of aggregation, and other scheduling difficulties mininet does not come even close to handling? 20 packet buffers?? A more typical number is much greater. Test through walls or at distance? Here are 4 resources that might help deepen your understanding. https://www.youtube.com/watch?v=3DRb-UnHDw02o&t=3D1532s (10 minutes here, but do the whole thing) https://bufferbloat-and-beyond.net/ https://www.cs.kau.se/tohojo/airtime-fairness/ https://blog.cerowrt.org/post/minstrel/ --=20 Podcast: https://www.linkedin.com/feed/update/urn:li:activity:7058793910227= 111937/ Dave T=C3=A4ht CSO, LibreQos