Public bug reported:
While working on gzip I checked the upstream git repository and stumbled
over this release announcement:
```
** Performance improvements
gzip now decompresses significantly faster by computing CRCs via a
slice by 8 algorithm, and faster yet on x86-64 platforms that
support pclmul instructions.
```
I tried to cherry-pick the relevant commits, but that is not trivial due
to using code from gnulib and upstream having a bootstrap script. So I
decided to prepare a merge from Debian (1.14-1~exp2ubuntu1). I tested
this version on my Framework 12 laptop:
```
$ sudo 3cpio -x -C initrd /boot/initrd.img
$ sudo tar -czf initrd.tar.gz initrd
$ sudo chown $USER initrd.tar.gz
$ hyperfine -L chroot old,new "schroot -c {chroot} -r -- gunzip -cd
initrd.tar.gz"
Benchmark 1: schroot -c old -r -- gunzip -cd initrd.tar.gz
Time (mean ± σ): 530.7 ms ± 7.0 ms [User: 517.5 ms, System: 12.9 ms]
Range (min … max): 522.8 ms … 544.1 ms 10 runs
Benchmark 2: schroot -c new -r -- gunzip -cd initrd.tar.gz
Time (mean ± σ): 335.6 ms ± 3.1 ms [User: 324.4 ms, System: 10.9 ms]
Range (min … max): 331.0 ms … 341.9 ms 10 runs
Summary
schroot -c new -r -- gunzip -cd initrd.tar.gz ran
1.58 ± 0.03 times faster than schroot -c old -r -- gunzip -cd initrd.tar.gz
```
That is a noticeable speed improvement. Therefore I request a feature
freeze exception to merge 1.14-1~exp2 from Debian.
** Affects: gzip (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/2142871
Title:
[FFe] Update gzip to 1.14
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