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From: Rich Freeman <rich0@gentoo.org>
To: gentoo-dev@lists.gentoo.org
Subject: Re: [gentoo-dev] Six month major project on Gentoo
Date: Thu, 22 Dec 2011 05:52:13 -0500	[thread overview]
Message-ID: <CAGfcS_==iegE4yhtsG4Rn=ZefHeTQduwtt6pSnb5HbaRZTgU9g@mail.gmail.com> (raw)
In-Reply-To: <20111222044323.GA18095@comet.roc.mn.charter.com>

On Wed, Dec 21, 2011 at 11:43 PM, Donnie Berkholz <dberkholz@gentoo.org> wrote:
> I looked into this 6 or 7 years ago. It wasn't feasible unless you were
> on an extremely high-speed, low-latency network, beyond what was
> typically accessible at the time outside of universities and LANs. Could
> be worth exploring again now that 25-100 mbps connections are becoming
> more common.

I tried messing around with this with Amazon EC2.  The problem was
that due to latency I only really saw the benefit for VERY high levels
of parallelization (think -j25+)..  However, make isn't actually
"distcc-aware" so it just runs 25 jobs of anything in parallel.  So,
anytime a makefile launched a ton of java or python jobs the host
ground to a halt as it wasn't distributed and it was way more than the
host could handle (especially java - which swapped like there was no
tomorrow).

If somebody were to do a distcc-ng for a large cluster one of the
problems to solve would be having it not run jobs in parallel if it
couldn't actually distribute them.

Rich



  reply	other threads:[~2011-12-22 10:53 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-12-14 11:06 [gentoo-dev] Six month major project on Gentoo Gaurav Saxena
2011-12-14 18:05 ` Christian Ruppert
2011-12-14 18:14   ` "C. Bergström"
2011-12-15 18:07   ` Gaurav Saxena
2011-12-19 17:46     ` Christian Ruppert
2011-12-14 18:29 ` Alec Warner
2011-12-15 18:09   ` Gaurav Saxena
2011-12-22  4:43   ` Donnie Berkholz
2011-12-22 10:52     ` Rich Freeman [this message]
2011-12-22 11:11       ` Francesco Riosa
2011-12-22 15:55         ` Michał Górny
2011-12-22 16:09           ` Rich Freeman
2011-12-22 17:40             ` [gentoo-dev] " Duncan
2011-12-18 17:02 ` [gentoo-dev] " Petteri Räty
2011-12-18 17:13   ` "Paweł Hajdan, Jr."
2011-12-18 17:17     ` [gentoo-dev] libbash licensing Petteri Räty
2011-12-18 17:45     ` [gentoo-dev] Six month major project on Gentoo Michał Górny
2011-12-19 18:14 ` Sébastien Fabbro
2012-01-02 14:33   ` "Paweł Hajdan, Jr."
     [not found] <i7USJ-40Q-3@gated-at.bofh.it>
2011-12-14 21:25 ` Leho Kraav
2011-12-14 23:43   ` Alec Warner
2011-12-14 23:58     ` Mike Frysinger
2011-12-15  5:39       ` Nirbheek Chauhan
2011-12-15 12:27         ` Mike Frysinger
2011-12-15 12:42           ` Nirbheek Chauhan
2011-12-15 12:43         ` Rich Freeman
2011-12-15 16:30           ` Mike Frysinger
2011-12-15 16:51             ` Mike Frysinger

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