Mailinglist Archive: opensuse-factory (381 mails)

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Re: [opensuse-factory] A look on RPM compression in openSUSE
On 08/10/2018 16.10, Joachim Wagner wrote:
* Some of our packages are too fat. kicad-packages takes longer to compress
than the entire remaining distro at zstd-19 with 16x-parallelism.

This data will therefore dominate the stats you created. Other packages may
behave differently.

If the goal is to minimise network traffic, the sizes should be weighted by
popularity (number of downloads).

One could also question whether picking a single compression method for all
packages is the way forward. A simple suggestion would be to select the
compression method for each package independently. Even better will be to
allow an arbitrary number of subsection in a package that can each pick its
own decompressor (more subsection than decompressors can make sense as one
may
want to use different compression settings). Each subsection can contain
multiple files, scripts and/or metadata. For an example of a file format that
can mix different compression methods see PDF.

Yes, this is a possibility, but the correct procedure would be the
compressing program choosing the correct algorithm automatically (with
configured criteria like speed/size), and not us in advance.

Does that type of software exist?

--
Cheers / Saludos,

Carlos E. R.
(from 42.3 x86_64 "Malachite" at Telcontar)

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