Re: Fedora 32 System-Wide Change proposal: Build Python 3 to statically link with libpython3.8.a for better performance

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On Tue, 2019-11-05 at 19:41 +0100, Kevin Kofler wrote:
> > Python 3 traditionally in Fedora was built with a shared library
> > libpython3.?.so and the final binary was dynamically linked against
> > that shared library. This change is about creating the static library
> > and linking the final python3 binary against it,
> 
> I oppose this change, because this is yet another size increase:
Up to ~27% speed increase for extra ~3.4 MB storage used seems like a good trade-off to me...

> 
> > As a negative side effect, when both libpython3.8.so and
> > /usr/bin/python3.8 are installed, the filesystem footprint will be
> > slightly increased (libpython3.8.so on Python 3.8.0, x86_64 is ~3.4M).
> 
> and while:
> 
> > OTOH only a very small amount of packages will depend on
> > libpython3.8.so.
> 
> in practice, that does not help because some of those packages are installed 
> by default, e.g., the ones you mentioned being installed by default even on 
> the Docker image:
> 
> > *'''libcomps'''
> > *'''libdnf'''
> > *'''vim'''
> 
> but there are more, such as gdb, libreoffice, krita, boost, etc. that are 
> installed on various live images, and calamares, which is popular on 
> remixes. So all those images will be bloated as a result of your code 
> duplicating change.
> 
> 
> In addition:
> 
> > By applying this change, libpython's namespace will be separated from
> > Python's, so '''C extension which are still linked to libpython'''
> > might experience side effects or break.
> 
> so compatibility is an issue too.
> 
>         Kevin Kofler
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