List Archive: gentoo-dev
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On Thu, 22 Dec 2011 12:11:32 +0100
Francesco Riosa <vivo75@...> 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?