From owner-freebsd-arch  Mon Jun  3 18:39:33 2002
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Date: Mon, 3 Jun 2002 18:39:16 -0700
From: Kris Kennaway <kris@obsecurity.org>
To: Terry Lambert <tlambert2@mindspring.com>
Cc: Kris Kennaway <kris@obsecurity.org>, arch@FreeBSD.ORG
Subject: Re: Removing wait union
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References: <20020602010108.B16166@espresso.q9media.com> <20020603011903.Y2566-100000@gamplex.bde.org> <20020603162508.A34224@xor.obsecurity.org> <3CFC00A9.BD98B7BD@mindspring.com> <20020603181537.A37707@xor.obsecurity.org> <3CFC1905.BF824FF3@mindspring.com>
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In-Reply-To: <3CFC1905.BF824FF3@mindspring.com>; from tlambert2@mindspring.com on Mon, Jun 03, 2002 at 06:33:57PM -0700
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On Mon, Jun 03, 2002 at 06:33:57PM -0700, Terry Lambert wrote:
> Kris Kennaway wrote:
> > > I think the problem needs something other than the ports cluster.
> > >
> > > The ports cluster is designed to keep dependencies seperate, so it
> > > serializes a lot of things that could otherwise be done in parallel,
> > > to ensure dependency order is maintained.
> >=20
> > In practise this isn't an issue.  I haven't obtained accurate
> > statistics, but the cluster runs at full capacity for pretty much the
> > entire build.
>=20
> You need to keep statistics of how many times each individual port
> is built, in the cluster case (i.e. you need a combinatoric dependency
> map and a way to factor out permutations that are necessary for
> solving the ports problem, but not necessary for solving the "what
> breaks?" problem).

Here are your statistics.

Each port is built precisely this many times:

                                     1

Jesus, Terry, please give us a little bit of credit for not being
completely stupid.

Kris
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