From owner-freebsd-current@FreeBSD.ORG Sun Dec 14 14:41:03 2014 Return-Path: Delivered-To: current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 6E487ED8 for ; Sun, 14 Dec 2014 14:41:03 +0000 (UTC) Received: from mail-yk0-x235.google.com (mail-yk0-x235.google.com [IPv6:2607:f8b0:4002:c07::235]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 29D17181 for ; Sun, 14 Dec 2014 14:41:03 +0000 (UTC) Received: by mail-yk0-f181.google.com with SMTP id 142so4306700ykq.40 for ; Sun, 14 Dec 2014 06:41:02 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=YawgOO37KuIDFp1Q+cT2ZOD8rLs68halB9p5geMFDgY=; b=hXyoEJt+y9WF/AaiL3DKcwE2uyYWc1+7NZnLLyJTc5RPptxm56xUSaNLmLTF3bQzo6 1k5vTKKC5NbLntbSFbLDnDEX0hYvk9Lkn0b7S6pv07fzqbFY7mXM9JgtXoez1FOcw8g/ 1Liw/NFNyO/uIVHs15sKlT4psYlGiW6aClnY3QyBS3c3U7oVtDX0eYEdtac8hypPgsS1 iE8YT7AEm4AUQNZYEKto9yufoJ924OJp40TubokiJYYpHLza6/mGjbCt6YuJu/bXMAr/ YW9/GMpIJddtx0RIfE/xlAixcIcnGBKAqjTcR9I1y8GuY3pb/St9TaHsUplTDYahq0sA jJ1g== MIME-Version: 1.0 X-Received: by 10.236.26.143 with SMTP id c15mr5255471yha.192.1418568062356; Sun, 14 Dec 2014 06:41:02 -0800 (PST) Received: by 10.170.90.131 with HTTP; Sun, 14 Dec 2014 06:41:02 -0800 (PST) In-Reply-To: <43445.1418553160@critter.freebsd.dk> References: <43445.1418553160@critter.freebsd.dk> Date: Sun, 14 Dec 2014 06:41:02 -0800 Message-ID: Subject: Re: simple task to speed up booting From: Mehmet Erol Sanliturk To: Poul-Henning Kamp Content-Type: text/plain; charset=UTF-8 X-Content-Filtered-By: Mailman/MimeDel 2.1.18-1 Cc: FreeBSD Current X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 14 Dec 2014 14:41:03 -0000 On Sun, Dec 14, 2014 at 2:32 AM, Poul-Henning Kamp wrote: > > The rotating swirlie ('-/|\') in the loader accounts for a surprisingly > large part of our boot time on systems with slow-ish serial consoles. > > I think right now it takes a step for each 512 byte read, reducing that > to once every 64kB or even 1MB would be an improvement with the kind of > kernel sizes we have today. > > -- > Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 > phk@FreeBSD.ORG | TCP/IP since RFC 956 > FreeBSD committer | BSD since 4.3-tahoe > Never attribute to malice what can adequately be explained by incompetence. > _______________________________________________ > > My wish would be to see listing explicit steps because when a lock occurs it would be possible to report last completed ( or started ) step . Otherwise , actually seeing a swirling set of characters is itself not much useful other than showing there is a progress without understanding what is going on . If I were able to change anything in FreeBSD , my first choice would be to change these swirling characters to list explicit names of completed tasks ( or starting tasks which operating system developers would know best which one is more useful ) . Thank you very much . Mehmet Erol Sanliturk