Daniel Alley wrote:
> One more point: createrepo_c uses zstd compression level 10, but the range
> goes all the way up to level 22. I would oppose making the default much
> computationally heavier than it is currently, but if spending 20x longer
> to compress the repo 10% more is desirable to the fedora project, then
> createrepo_c could perhaps add a the ability to select a compression
> level.
>
> zstd at high compression levels is very nearly as good at compressing as
> xz and sometimes better, while remaining much faster to decompress. --
Considering that compression happens once on the server and downloading and
decompression happens many times on many computers, I think we should use
the highest possible compression level.
By the way, xz also supports stronger parameters than -9 in principle, there
is just no preset for it.
Kevin Kofler
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