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Date:      Thu, 02 Jun 2005 12:34:23 +0200
From:      des@des.no (=?iso-8859-1?q?Dag-Erling_Sm=F8rgrav?=)
To:        Maxim.Sobolev@portaone.com
Cc:        cvs-src@FreeBSD.org, Scott Long <scottl@samsco.org>, Tim Kientzle <kientzle@FreeBSD.org>, cvs-all@FreeBSD.org, src-committers@FreeBSD.org
Subject:   Re: cvs commit: src/lib/libarchive archive_private.h archive_read.c archive_read_data_into_fd.c archive_write.c archive_write_set_compression_bzip2.c archive_write_set_compression_gzip.c archive_write_set_compression_none.c
Message-ID:  <867jhdnj2o.fsf@xps.des.no>
In-Reply-To: <429DF9E9.9060307@portaone.com>
References:  <200506011552.j51FqdR2046893@repoman.freebsd.org> <429DED77.9050003@samsco.org> <429DF37B.8010203@portaone.com> <429DF38B.2020107@samsco.org> <429DF9E9.9060307@portaone.com>

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Maxim Sobolev <sobomax@portaone.com> writes:
> Therefore, IMHO, the only realistical approach is to improve
> tinderboxes to minimize detection window (i.e. faster, multi-CPU
> hardware and/or tools like ccache) and to make breakage information
> delivery more direct.

Faster, multi-CPU hardware will not help.  The tinderbox is
constrained by memory bandwidth, not CPU speed.  A cluster of seven
$200 Mini-ITX boxes can do a full -CURRENT tinderbox run in two or
three hours, vs. eight to ten hours on a single $1400 box.

Ccache won't help either, because buildworld always starts by building
a new toolchain, which invalidates the cache.

DES
--=20
Dag-Erling Sm=F8rgrav - des@des.no



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