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Date:      Tue, 24 Mar 2009 12:28:20 -0400
From:      Coleman Kane <cokane@FreeBSD.org>
To:        pav@FreeBSD.org
Cc:        ports@FreeBSD.org, Niclas Zeising <niclas.zeising@gmail.com>
Subject:   Re: HEADS UP multi processor compilations for everyone
Message-ID:  <1237912100.1741.16.camel@localhost>
In-Reply-To: <1237907945.1849.27.camel@pav.hide.vol.cz>
References:  <1237901632.1849.19.camel@pav.hide.vol.cz> <49C8EE21.3080702@gmail.com> <1237906449.1849.25.camel@pav.hide.vol.cz> <1237906705.1741.13.camel@localhost> <1237907945.1849.27.camel@pav.hide.vol.cz>

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On Tue, 2009-03-24 at 16:19 +0100, Pav Lucistnik wrote:
> Coleman Kane p=C3=AD=C5=A1e v =C3=BAt 24. 03. 2009 v 10:58 -0400:
> > On Tue, 2009-03-24 at 15:54 +0100, Pav Lucistnik wrote:
> > > Niclas Zeising p=C3=AD=C5=A1e v =C3=BAt 24. 03. 2009 v 15:28 +0100:
> > >=20
> > > > Not to nitpick or be an annoyance, but you might want to document t=
his=20
> > > > in ports(7) or make.conf(5) (or both) so it doesn't get lost in the=
=20
> > > > mail-lists or if people are not reading ports@
> > >=20
> > > I will document it soon, thinking The Handbook would be best place.
> > >=20
> >=20
> > Definitely add it to UPDATING too. This will allow people who typically
> > do something like "make configure && make -j3" to now know that they
>=20
> This would break very fast -- it's passing -j3 to port Makefile instead
> of vendor Makefile.

This has worked fine for me for countless years, except where the
vendor's Makefiles were not parallel-safe. This has been my trick to get
larger things (like mysql or xorg-server) to make in parallel. It *did*
work. If this has changed, then it definitely warrants mention in
UPDATING.

>=20
> > don't have to. It will also allow others to know why ports compilation
> > on their multi-core boxes suddenly uses a lot more CPU time.
>=20
> Same CPU time, less wall time, more CPU utilization :)
>=20

Thanks for the clarification... that's what I meant :)

--=20
Coleman Kane

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