From owner-svn-src-all@freebsd.org Tue May 1 23:00:56 2018 Return-Path: Delivered-To: svn-src-all@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 4347BFBA5CD; Tue, 1 May 2018 23:00:56 +0000 (UTC) (envelope-from jonlooney@gmail.com) Received: from mail-wm0-x241.google.com (mail-wm0-x241.google.com [IPv6:2a00:1450:400c:c09::241]) (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 B4F6F69E96; Tue, 1 May 2018 23:00:55 +0000 (UTC) (envelope-from jonlooney@gmail.com) Received: by mail-wm0-x241.google.com with SMTP id f8so10624581wmc.4; Tue, 01 May 2018 16:00:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc; bh=IGd1ZFRuCpr7lYdfHOPwm5KfxMyzvaMlbJo/N8cgkIk=; b=pnvtmNfoxFZltw8Y3MjNHWnJi5eK4fdqVkQMMdeXZ7dAd32sKQRlEQmAg20VBZm2qQ 08UJMRo1a79nmyCA9Pkv/LhBbsAf9LonIga2NCN2DZRmDqlfBmmWt860cNTUD8lTi49x WSy5MnWKPhOcLDOl2MSxsdr9ttrT8Lbc0PCotgQmvlkQJYAQyDnqI8DkYxhfpRxu37MT C7YHgg19Opvgr0A5LXBOabBnObQ7+5hYc/WmsAaJ4tA9C9+o6hWzqgBjsWh2JfvEBiSl FW+B1TdDrfGy9EtmtZFJTMdqO86qAfc0uLfc23zwqr3KzhUQvHSZFCKIZsPFg7iSLlaf oAOA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=IGd1ZFRuCpr7lYdfHOPwm5KfxMyzvaMlbJo/N8cgkIk=; b=LEbNqvpJDqghMUs/tVSRQsi9k0UAwglkuxc2URt2okpF8CT/nvV+zFJTGdligMnAb6 h6Lyr/wfIOIxqHVrNGshVqxTqCNl80a11nEmNFpRohz5Uf+iSIDpI6VqyBJkkLoC5+41 +oCWyZIuYhMAkUawaPEDW5gsACxnNYauWF983rjM2T7MyLgNlAiFpPZslR9x52Nkc/ct yuQN0rjKQ/zgdcIW3S9f0TTD/I5yMN+s9NsdBHglvpn4dCC7zDAnF0hP8yuzNStAkbRu g7jDc08TA9smwFCU4GKiviOmIXCw8YoGb6swdmBbNihJLZGwSTaXRTrVPxoGsVB/B3PQ zxZQ== X-Gm-Message-State: ALQs6tAVhJlSGh11SRjtAXBJWjUI/sXO2/fdRWTce9+ywxABl8zy4LWx OGycEe7YYUP+JDhO4V8BD77XEE2t33HMcjaXr0GhfwAS X-Google-Smtp-Source: AB8JxZrwlgS1y5EC4X34qQvGLTzs+HFb9FycZ1IoFBtKREyZeSJKSuOGhpaS2Rh984UOcqmEvzznxFiBi7k7WZr7fIY= X-Received: by 10.28.45.147 with SMTP id t141mr11553440wmt.94.1525215654702; Tue, 01 May 2018 16:00:54 -0700 (PDT) MIME-Version: 1.0 Received: by 10.223.197.74 with HTTP; Tue, 1 May 2018 16:00:54 -0700 (PDT) In-Reply-To: <20180430071646.GE3653@strugglingcoder.info> References: <201804191338.w3JDc0to002106@repo.freebsd.org> <20180430071646.GE3653@strugglingcoder.info> From: Jonathan Looney Date: Tue, 1 May 2018 19:00:54 -0400 Message-ID: Subject: Re: svn commit: r332770 - in head/sys: conf netinet netinet/tcp_stacks sys To: hiren panchasara Cc: Randall Stewart , src-committers , svn-src-all@freebsd.org, svn-src-head@freebsd.org Content-Type: text/plain; charset="UTF-8" X-Content-Filtered-By: Mailman/MimeDel 2.1.25 X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.25 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 01 May 2018 23:00:56 -0000 On Mon, Apr 30, 2018 at 3:16 AM, hiren panchasara < hiren@strugglingcoder.info> wrote: > > In my understanding, default stack currently cannot use this mechanism. When do > you think that'll be possible? I think I can speak to Randall's plans for this. Randall chose not to include in this commit the hooks for the default stack to use the high-precision timers. I believe his immediate priorities are upstreaming RACK and BBR. After that, if there is demand, he may upstream the (relatively untested) code that allows the default stack to use the high-precision timers (protected by a non-default kernel option) so others can choose to experiment with it. (By the way, we're hoping to change the terminology away from describing the traditional FreeBSD stack as the "default" stack. In theory, someone can make any stack be their local default. We'll need to figure out what to actually call it at some point. My suggestion was the "FreeBSD" stack, although that is lacking in some imagination. In any case, we should have that discussion at some point in the future.) Jonathan