From owner-freebsd-net@freebsd.org Tue Sep 20 11:25:24 2016 Return-Path: Delivered-To: freebsd-net@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 53CF8BE2E7C for ; Tue, 20 Sep 2016 11:25:24 +0000 (UTC) (envelope-from loganaden@gmail.com) Received: from mail-pf0-x236.google.com (mail-pf0-x236.google.com [IPv6:2607:f8b0:400e:c00::236]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 28A81A50; Tue, 20 Sep 2016 11:25:24 +0000 (UTC) (envelope-from loganaden@gmail.com) Received: by mail-pf0-x236.google.com with SMTP id q2so6539095pfj.3; Tue, 20 Sep 2016 04:25:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc; bh=dBIWEz7gNG9QrpAtDr0JE2qnTx3xKpfrqmWZKR45ikI=; b=zcUYsmu63fGEGXnqfNOwsuSIGzeHj+NxPM6rqAGIeAtg1u0UaD0iAVEvRFeWG/lX8V N9cM5P2R5NZBnxTJWvSBbZRKpkJYR/2MFmKogMOWPBwUY5sDrleDalpVA+59oRvc8+2V HMcyIdl/tkqMMASgoxnfCLtUOQP/bz5kVlzPjK0X3m64QWEHc/DBVZDxUSZJNXdlTvgp 7apgFFemYQHuEb80t7WeS3Kn4eiUjeFmmnoF0qUksve655A98eAe5ROTBCQUMDBCvXyl xxe8PssLcm7jDNLcNxOe5OZ10ytUHzqCQkdWHMGrFvcgAjtrA6gfElyT8JGAVFJ9wuAt LwuA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=dBIWEz7gNG9QrpAtDr0JE2qnTx3xKpfrqmWZKR45ikI=; b=K0p8vwzzSBJ5at0q7I/ONaBcqv9oUqImVVrGYaiocKMRRepk5euDGEy94TLP0/HS9g VZFvdpudlQhDasToeZMslU/z1MQF63bFSS81Wvslu+4VWH5L12B7hXsWpg5I/qGffDV7 O0E2Mwk8ELV+qJGfc6I8E67zSw/LKIC1TxFpQQJj1IsjJyPA64b1PACV8z2BJBGwdn99 mWZp7w2Jz8ZHLL3NdXh8AXLs80lY+crXL93uq2AiwI0TH574Amt+nyajwQ2TozGy7iwR QcvQW5AQN8Bo1hlvyaSMk4cbRdBt+EEkJRInNpQ+UOwK0o/rcy4jdMY6C7PiaPnOyViZ UaqQ== X-Gm-Message-State: AE9vXwNwToNCB63y+TqsScJsUkGQBahMOemP9NelRVSzzZWXTP0Xs6xoO+pAaBJEmSFYPghpEmBKtbqAuBfhzA== X-Received: by 10.98.208.195 with SMTP id p186mr12283701pfg.90.1474370723274; Tue, 20 Sep 2016 04:25:23 -0700 (PDT) MIME-Version: 1.0 Received: by 10.66.102.70 with HTTP; Tue, 20 Sep 2016 04:25:22 -0700 (PDT) In-Reply-To: References: From: Loganaden Velvindron Date: Tue, 20 Sep 2016 15:25:22 +0400 Message-ID: Subject: Re: BBR Congestion Control Algorithm To: Babak Farrokhi Cc: FreeBSD Net Content-Type: text/plain; charset=UTF-8 X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 20 Sep 2016 11:25:24 -0000 On Sat, Sep 17, 2016 at 7:24 PM, Babak Farrokhi wrote: > ICYMI: http://marc.info/?l=linux-netdev&m=147405177724268&w=2 > > Google submitted their own TCP CC algorithm to upstream. This algorithm has been widely in use in their network. > This looks very interesting and it would be great if someone could port it to FreeBSD. > > Any thoughts? > > -- > Babak Farrokhi > A lot of groundwork needs to be done I suppose. For example, implementing high-resolution timers that would allow the FreeBSD network stack to implement BQL, and other necessary infrastructure in order for fq_codel/CAKE to work as well as on Linux. Perhaps this might be something that the FreeBSD foundation could look into ?