* Re: [gentoo-dev] Six month major project on Gentoo
@ 2011-12-22 10:52 99% ` Rich Freeman
0 siblings, 0 replies; 1+ results
From: Rich Freeman @ 2011-12-22 10:52 UTC (permalink / raw
To: gentoo-dev
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
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2011-12-14 11:06 [gentoo-dev] Six month major project on Gentoo Gaurav Saxena
2011-12-14 18:29 ` Alec Warner
2011-12-22 4:43 ` Donnie Berkholz
2011-12-22 10:52 99% ` Rich Freeman
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