From owner-freebsd-rc@FreeBSD.ORG  Wed Aug 24 09:39:16 2011
Return-Path: <owner-freebsd-rc@FreeBSD.ORG>
Delivered-To: freebsd-rc@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id E90F1106566B
	for <freebsd-rc@freebsd.org>; Wed, 24 Aug 2011 09:39:16 +0000 (UTC)
	(envelope-from vmagerya@gmail.com)
Received: from mail-vx0-f182.google.com (mail-vx0-f182.google.com
	[209.85.220.182])
	by mx1.freebsd.org (Postfix) with ESMTP id A665A8FC1A
	for <freebsd-rc@freebsd.org>; Wed, 24 Aug 2011 09:39:16 +0000 (UTC)
Received: by vxh11 with SMTP id 11so1098066vxh.13
	for <freebsd-rc@freebsd.org>; Wed, 24 Aug 2011 02:39:15 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma;
	h=mime-version:in-reply-to:references:date:message-id:subject:from:to
	:cc:content-type;
	bh=kc+2lkLFzpRMfD+lWpnZpmPwCitv+4UwdXC+hKL4tXk=;
	b=cJiEukFrDI8Vb3DAh02IGX1bYWDZ7S07cl4C/z9s5DQtqlCjty8VW7qWp9mX1s+6rw
	95tb5R/nVhsI4pwrhBqYaT8syrDVO8GUW86Iprb/FAARDkMI8KNcQaEU6LYuTarYFMK6
	KchQF5TIue15OBy/Tx9JLXMyZj98qMspsYDxM=
MIME-Version: 1.0
Received: by 10.52.175.164 with SMTP id cb4mr4675212vdc.381.1314176921782;
	Wed, 24 Aug 2011 02:08:41 -0700 (PDT)
Received: by 10.52.160.39 with HTTP; Wed, 24 Aug 2011 02:08:41 -0700 (PDT)
In-Reply-To: <20110821121509.GA27730@crane.none>
References: <20110821121509.GA27730@crane.none>
Date: Wed, 24 Aug 2011 12:08:41 +0300
Message-ID: <CAL409Kxum=-oyPFCwpAgA_bcTAuAUjQRB0FNmwGLKWFBDAEP8A@mail.gmail.com>
From: Vitaly Magerya <vmagerya@gmail.com>
To: kilian <kklimek@uos.de>
Content-Type: text/plain; charset=UTF-8
Cc: freebsd-hackers@freebsd.org, freebsd-rc@freebsd.org
Subject: Re: Concurrent execution of rc-scripts with rcorder(8)
X-BeenThere: freebsd-rc@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: "Discussion related to /etc/rc.d design and implementation."
	<freebsd-rc.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-rc>,
	<mailto:freebsd-rc-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-rc>
List-Post: <mailto:freebsd-rc@freebsd.org>
List-Help: <mailto:freebsd-rc-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-rc>,
	<mailto:freebsd-rc-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 24 Aug 2011 09:39:17 -0000

> the idea to start services concurrently during boot isn't new and the
> question why FreeBSD doesn't do it has popped up on the forum and
> mailing list occasionally. So, why not give it a shot?

As someone who uses FreeBSD on hist laptop and is constantly annoyed
by the lack of suspend-to-disk, every second trimmed of from boot
time is a win.

In line of the recent FreeBSD problems & solutions discussion, would
any commiter take time to review and commit this? "FreeBSD 9.1
introduces concurrent startup, improves boot speed" is the kind of
buzz we're after.

> Any ideas and feedback are very welcome!

One thing to try is to attach a diagnostics feature that will produce
data about rc script dependencies and execution times, which can
be used to visualize which scripts take most time, and how to
reorganize dependencies to improve boot time (one example I noticed
is moused: it is only started after network is up, which is a shame,
since it could easily start while DHCP negotiation is in progress).