Groups > linux.debian.maint.python > #11533

increased build time and disk usage for scipy with pybuild

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From	Drew Parsons <dparsons@debian.org>
Newsgroups	linux.debian.maint.python
Subject	increased build time and disk usage for scipy with pybuild
Date	Sat, 27 Jul 2019 16:20:01 +0200
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I've uploaded python-scipy 1.2.2 to unstable.

Previously the build system ran through distutils, but dh now gives an 
error on that, and says pybuild should be used instead.  So I 
reorganised debian/rules to use dh --buildsystem=pybuild.  I also 
reorganised rules to stop the second invocation of dh in the build-arch 
rule.

The build completes successfully.  But it is taking 3 times longer than 
it did before.  It is also using around 75% more disk space than before.

I guess the increase is probably not due to the new 1.2.2 release 
itself, otherwise I'd have expected an increase also in 1.2.1 (in 
experimental) compared to 1.1.0, which didn't happen.  I figure it's 
probably not simply that the buildds are busy catching up after the 
buster release, since I'm not seeing an increase in build time of other 
packages.  pybuild seems a more likely culprit (if not some other aspect 
of debhelper compatibility level 12. Previously debhelper 9 was used).

Is an increase in build resources like this known to happen when pybuild 
is used instead of distutils?


Drew

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increased build time and disk usage for scipy with pybuild Drew Parsons <dparsons@debian.org> - 2019-07-27 16:20 +0200
  Re: increased build time and disk usage for scipy with pybuild Drew Parsons <dparsons@debian.org> - 2019-07-28 15:40 +0200

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