* Re: [gentoo-dev] Six month major project on Gentoo
@ 2011-12-22 15:55 99% ` Michał Górny
0 siblings, 0 replies; 1+ results
From: Michał Górny @ 2011-12-22 15:55 UTC (permalink / raw
To: gentoo-dev; +Cc: vivo75
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On Thu, 22 Dec 2011 12:11:32 +0100
Francesco Riosa <vivo75@gmail.com> wrote:
> > 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).
>
> Just wanted to point out that (if there is enough memory) recent
> kernels manage much better parallelism, even excess of it, once
> reached the maximum load augmenting threads only bring minimal loss of
> "real" time.
Does that include handling complete lack of memory and heavy swapping?
--
Best regards,
Michał Górny
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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 ` Rich Freeman
2011-12-22 11:11 ` Francesco Riosa
2011-12-22 15:55 99% ` Michał Górny
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