Why is not everything reproducible yet?

Holger Levsen holger at layer-acht.org
Wed Feb 14 15:12:53 UTC 2024

Hi Bernhard,

(this got lost in post end of the year busyness...)

On Wed, Dec 20, 2023 at 09:42:53AM +0100, Bernhard M. Wiedemann via rb-general wrote:
> Sometimes people wonder:
> Why is not everything reproducible yet?
> And the general reason is that there are other interests that result in
> added non-determinism.
> I collected some with examples
> Performance (PGO, benchmarking, -march=native, parallelism/races)
> Simplicity (e.g. using random UUIDs instead of hashed inputs)
> Security (Signatures):
> Traceability of provenance (date+user+hostname):
> repeatable builds:
> Portability:

I really liked this post/list/summary and wondered whether we should have this
on https://reproducible-builds.org somewhere, maybe even in /news/, though I'd
think there should be an update at least every 6 months and I wonder if this is

What do y'all think?


 ⣾⠁⢠⠒⠀⣿⡁  holger@(debian|reproducible-builds|layer-acht).org
 ⢿⡄⠘⠷⠚⠋⠀  OpenPGP: B8BF54137B09D35CF026FE9D 091AB856069AAA1C

Because things are the way they are, things will not stay the way they are.
(Bertolt Brecht)
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