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Subject: Re: [Boost-build] decrease build time
From: K. Noel Belcourt (kbelco_at_[hidden])
Date: 2009-06-23 16:14:02

On Jun 11, 2009, at 4:19 AM, Vladimir Prus wrote:

> Anatoly Shirokov wrote:
>> I have big project (about 600 dynamic libraries, 20000 cpp and header
>> files). When I start full build with bjam, the one takes about 30
>> minutes and about 800 Mb RAM to analize dependencies. Only after
>> this it
>> starts compilation.

We too see resource consumption on this level (only larger). Bjam
consumes 3.4 Gb memory to analyze dependencies (our project is C/C++/

>> Is there a way to decrease this time needed to analize (may be
>> cache and
>> something like this)?
> Are you using most up-to-date version (SVN HEAD, nightly build)? If
> not,
> you probably can provide output of -d+10 in case there's some local
> scalability problem. What is your OS and compiler? Will you be willing
> to try Python port of Boost.Build in near future, which should be
> considerably
> faster on all use cases?

We're using Boost Build from 1.38 at the moment. You can see some of
our OS and compiler configurations by looking at the Sandia results
on the trunk testing page (the 3.4 Gb result above is on Linux RH4
with gcc-4.2.4). I'd love to be a beta tester for a python port, if
you're looking for testers.

-- Noel

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