From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ed1-x543.google.com (mail-ed1-x543.google.com [IPv6:2a00:1450:4864:20::543]) (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 DBA803B29E for ; Wed, 4 Jul 2018 09:06:23 -0400 (EDT) Received: by mail-ed1-x543.google.com with SMTP id g12-v6so4000900edi.9 for ; Wed, 04 Jul 2018 06:06:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:references:to:from:message-id:date:user-agent:mime-version :in-reply-to:content-language:content-transfer-encoding; bh=+1N4HZSPyHfslm+4OKl5/7tjKQpppsRs3vQEuVX91LA=; b=CLDPJL30TkOsXOaWkuj/LdtPLIHYVFJ0IMk4ZNj6bmO/qalCJMYIJ3pQwgyypj4aRn rPaHJS/rjKjA64vszdPo9w8rAZ+SdSst5wSkJQwVVIedX4oWC2l2lcKaKy3mQZ/z9PEe ksdnNf0AnyvjaMIwjmE35XG96sons8QegmWSrtwWHYmU4xRdIBzRaOCEjNbuwe9RTWZc 6SLg7Hv2TpVUD89v3vHMaLsnG1ljry2FJs/3v7p2NQ1m1ybyp6Yvx17yEXunqRUnO+Wg VM4cEKpgDKzstexquC0YK8TxY095sCXnuwHyj+s0DmStoO4ypIDBUROuwj4SvGt7kR4S Af5w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:references:to:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=+1N4HZSPyHfslm+4OKl5/7tjKQpppsRs3vQEuVX91LA=; b=jjoIIiccNeJgBkUEBEyDNBOX4/pgHpa5aUkRqTawduNHM2cQeB6MHDNO2/ne7aKqsW TQ8Q+6X2matE+5a+t5mUVYbwZF7leKijnMXs10D5pfS+wyMH2uLBYZC366ROc3ivCs6/ Gu8HmNDyuzufM1bWOSuCzBwmfHV9DYPkfM/gKEjh2FEd9QRCUv/ir9O/8xbo7DLMYD/I XsVEld4Yt0D3Td7Gv123CH0V6lLuQXjmSK6NwOdz4HeCsL75MBe0S33yqK+OiU/QRzM+ AE6kJnAZiLHIF/Gzzp5YTxkVvTklUMJ3u+5cMt9QokrkYy6LY1BZ7F8685DO66CV0X0/ Z2jQ== X-Gm-Message-State: APt69E2OrAC9+Zd3RkRrufTt+GiSj76ypx5qvyIbBHc0s4cV6+l46lhd PFyc6zOcnt/BDHzL/+yfaSM7/i0X X-Google-Smtp-Source: AAOMgpdTCT+X5YDG2sF3hqlGMmGuI5s0mKlxcQuVZixOy6hewT2jmwnh3vxsAcOe+15qVEZnUijfCQ== X-Received: by 2002:aa7:c803:: with SMTP id a3-v6mr2700195edt.124.1530709582621; Wed, 04 Jul 2018 06:06:22 -0700 (PDT) Received: from zotac.xperim.be ([91.178.174.173]) by smtp.gmail.com with ESMTPSA id g2-v6sm1747281edq.92.2018.07.04.06.06.21 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 04 Jul 2018 06:06:22 -0700 (PDT) Received: from [192.168.1.184] (bajor.xperim.be [192.168.1.184]) by zotac.xperim.be (Postfix) with ESMTPSA id 43CBA4947DF; Wed, 4 Jul 2018 15:06:20 +0200 (CEST) References: To: bloat From: Jan Ceuleers X-Forwarded-Message-Id: Message-ID: <00082e85-c3c5-8a1f-7bcf-86d860ba1ded@gmail.com> Date: Wed, 4 Jul 2018 15:06:19 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.8.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Subject: [Bloat] Fwd: Fixing bufferbloat with PF and OpenBSD X-BeenThere: bloat@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: General list for discussing Bufferbloat List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 04 Jul 2018 13:06:24 -0000 -------- Forwarded Message -------- Subject: Fixing bufferbloat with PF and OpenBSD Date: Wed, 04 Jul 2018 09:17:55 GMT From: OpenBSD Journal <> Fixing bufferbloat with PF and OpenBSD In this post , Paul Smith shows how to reduce buffer bloat and improve interactive traffic latencies. Long time ago, Daniel Hartmeier wrote a nice piece on how to prioritize ACKs and small packets using ALTQ in PF to sustain download speeds on (mostly) assymetric links, but since then PF and queuing has undergone quite a few changes. To see an example on how the new rulesets should look, and how to score more internet points on speed tests, head over to his article.