[Rpm-maint] [rpm-software-management/rpm] Adding ZSTD (or other FSE compressor) (#256)

Jeff Johnson notifications at github.com
Tue Jul 18 11:10:45 UTC 2017

There are (at least) 3 new FSE compression formats that have been released in
the past few years: zstd (Facebook),  brotli (Google), lzfse (Apple).

The new compressors have better compression ratios and speed than gzip/zlib.

And while then compression rations is still not as good as XZ/LZMA, the decompression speed (which is mostly rate determining for RPM installation speed), of zest is considerably faster than XZ/LZMA.

One or more of these implementations might be useful for RPM.

There's an implementation for RPM+ZSTD available here: [http://rpm5.org/files/rpm/rpm-5.4/SNAPSHOT/rpm-5.4.18-0.20170718.src.rpm](url) that can be adapted to RPM4. I can/will do the patch if there is sufficient interest.

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