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Date:      Mon, 11 Feb 2013 09:15:12 -0500
From:      Glen Barber <gjb@FreeBSD.org>
To:        Fabian Keil <freebsd-listen@fabiankeil.de>
Cc:        freebsd-current@FreeBSD.org, David Chisnall <theraven@FreeBSD.org>, Steve Kargl <sgk@troutmask.apl.washington.edu>
Subject:   Re: 7+ days of dogfood
Message-ID:  <20130211141512.GN1334@glenbarber.us>
In-Reply-To: <20130211145647.79a01f7e@fabiankeil.de>
References:  <20130210000723.GA73630@troutmask.apl.washington.edu> <20130211114811.09e56b55@fabiankeil.de> <17E009FB-23FA-4E04-8437-DE81033164DE@FreeBSD.org> <20130211145647.79a01f7e@fabiankeil.de>

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[-- Attachment #1 --]
On Mon, Feb 11, 2013 at 02:56:47PM +0100, Fabian Keil wrote:
> >                                  WITHOUT_GCC=yes in src.conf is
> > worthwhile.  WITHOUT_GDB=yes is probably also sensible, as the gdb in
> > base is so old that it doesn't understand most of the DWARF that clang
> > uses.  We should have lldb ready for import in a few months, but until
> > then using gdb from ports is more sensible if you plan on actually doing
> > any debugging.
> 
> So far I didn't consider not building gdb, but I agree that it's
> not too useful when compiling with clang and am already using
> gdb751 for debugging anyway.
> 
> My impression was that the base gdb compiles rather quickly
> (compared to more recent versions) and that it thus wouldn't
> matter, but I'll give it a try.
> 
> Thanks for the suggestion.
> 

You might also want to try MALLOC_PRODUCTION=1 in make.conf.  This took
my buildworld/buildkernel times from 35/15 minutes to 8/5 minutes,
respectively.

Glen


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