From owner-freebsd-hackers  Sat Jul 13 20:21:46 1996
Return-Path: owner-hackers
Received: (from root@localhost)
          by freefall.freebsd.org (8.7.5/8.7.3) id UAA29870
          for hackers-outgoing; Sat, 13 Jul 1996 20:21:46 -0700 (PDT)
Received: from rah.star-gate.com (rah.star-gate.com [204.188.121.18])
          by freefall.freebsd.org (8.7.5/8.7.3) with ESMTP id UAA29859
          for <freebsd-hackers@freefall.freebsd.org>; Sat, 13 Jul 1996 20:21:43 -0700 (PDT)
Received: from rah.star-gate.com (localhost.v-site.net [127.0.0.1]) by rah.star-gate.com (8.7.5/8.7.3) with ESMTP id UAA00618; Sat, 13 Jul 1996 20:20:51 -0700 (PDT)
Message-Id: <199607140320.UAA00618@rah.star-gate.com>
X-Mailer: exmh version 1.6.5 12/11/95
To: "Lenzi, Sergio" <lenzi@cwbone.bsi.com.br>
cc: "Sexton, Robert" <sextonr.crestvie@squared.com>,
        freebsd-hackers@freefall.freebsd.org
Subject: Re: Kernel Config (Was: GENERIC Kernel Debate) 
In-reply-to: Your message of "Sat, 13 Jul 1996 21:45:28 -0000."
             <Pine.BSF.3.91.960713213356.1178B-100000@home> 
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Date: Sat, 13 Jul 1996 20:20:51 -0700
From: Amancio Hasty <hasty@rah.star-gate.com>
Sender: owner-hackers@FreeBSD.ORG
X-Loop: FreeBSD.org
Precedence: bulk

>From The Desk Of "Lenzi, Sergio" :
> On Thu, 11 Jul 1996, Sexton, Robert wrote:
> 
> Hello Robert,
> I have been using sysV kernels for a long time too. Now I am an BSD 
> converted. The problem for kernel build time (30 minutes) or so seems to 
> be too long compared with of a SysV rel 3.2.

The issue of 30minutes for a kernel compile has got to be due
to gcc . Not sure what changed between gcc-1.42 and and gcc-2.x however
simple minded experiments have shown that gcc-2.x takes about 3 times
longer to compile. The other major factor is the cpu/disk/controller and
if you have a minimally configured system, memory is important.

It takes about 8 minutes to compile a kernel over here on my P100 with
32MB and fast disks. It would probably take less than 3 minutes to
compile with the old gcc-1.42 .

I would be nice if  someone with access to gcc-2.x and gcc-1.42 to do a 
performance analysis ...

As for the issue of a user friendly front-end to configure a kernel , 
I think that we have enough tools to do a decent job is just a matter
of someone with enough drive to sit down and do it.

	Amancio