Re: [gentoo-soc] Project Glentoo: Status Report #4

[Donnie Berkholz <dberkholz@gentoo.org>]

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On 10:25 Fri 15 Jul     , Rich Freeman wrote:
> On Sun, Jun 19, 2011 at 7:42 PM, Robert Seaton <seatonr@dupage.edu> wrote:
> > On Wednesday, I spent some time trying to get distcc working on an
> > Amazon EC2 high-compute instance to speed up generation of the process
> > of building a liveCD image, seeing as it takes quite some time to
> > generate a fresh image on my aging core2duo. I still haven't managed
> > to get that working, but it's something I plan to continue to look
> > into during the upcoming week.
> 
> Out of curiosity - did you ever get this working in any practical way?
>  I've found that DistCC to a remote server from a slower host hasn't
> worked all that well.  In order to make up for network latency you
> need to run VERY parallel builds (-j15/etc), and the problem is that
> there is no way to tell make to do that just for files that use gcc.
> The result is that as soon as you hit a package that uses quite a bit
> of java/python/bash/etc you end up running at -j15 on your local
> system and it just kills you - especially java.

There's a nice option -l (load average) that blocks new jobs from 
starting if the load is too high.

-- 
Thanks,
Donnie

Donnie Berkholz
Admin, Summer of Code
Gentoo Linux and X.Org
Blog: http://dberkholz.com


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