Re: Staging branch [substitute availability]

[Leo Famulari]

On Wed, Jan 13, 2021 at 05:30:53PM -0500, Leo Famulari wrote:
> Using `guix weather`, we can check substitute availability for the
> staging branch:
> 
> ------
> master branch
> aarch64: 66% 
> x86_64: 93% 
> i686: 85%
> armhf: 51%
> 
> staging branch
> aarch64: 44% 
> x86_64: 80% 
> i686: 60%
> armhf: 30%
> ------

Updates since 9 days ago:

------
master branch
aarch64: 72% 
x86_64: 94% 
i686: 86%
armhf: 46%

staging branch
aarch64: 48% 
x86_64: 79% 
i686: 70%
armhf: 30%
------

Some improvement can be seen. There are still a huge number of failures
on CI that can't be reproduced locally, especially for aarch64.

Since working around the failure of mesa on i686, that platform shows
major improvement.

The big failures on x86_64 are all rather niche — Java and OCaml mostly.

armhf continues to decline because we are no longer building substitutes
for it.

There are some failures I think are important, though.

For example, the vtk package is broken due to incompatibility with new
Freetype, which breaks FreeCAD. On #guix, Marius said "I looked into VTK
before the holidays; the Freetype issue is fixed in version 9, but that
has other problems, such as making it impossible to unbundle the dozens
of libraries that we are currently unbundling [...] it is possible to
backport the VTK commits that fix Freetype compatibility, but it will be
a lot of work and a huge patch (it was a major cleanup IIRC)." I'm
CC-ing Ekaitz Zarraga, who has been working on FreeCAD. I'm not sure
what we can do about this problem in the short term. Marius, can you
give more info about the bundling problem?

Full weather report attached, including failures of packages with at
least 10 dependents.

Can you identify any outstanding issues? Or are we ready to merge the
branch into master? Although the numbers are lower for staging, the high
rate of spurious failures and the successful system reconfigurations
reported by Guix users makes me think that the situation is fine.

master-aarch64-linux
Description: Text document

master-armhf-linux
Description: Text document

master-i686-linux
Description: Text document

master-x86_64-linux
Description: Text document

staging-aarch64-linux
Description: Text document

staging-armhf-linux
Description: Text document

staging-i686-linux
Description: Text document

staging-x86_64-linux
Description: Text document

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