Super interesting findings!
On 14.12.20 23:20, Ludovic Courtès wrote:
2. Use Zstd like all the cool kids since it seems to have a much
higher decompression speed: <https://facebook.github.io/zstd/>.
630 MB/s on ungoogled-chromium on my laptop. Woow.
Not only decompression speed is fast, compression is as well:
size file time for compression (lower is better)
335M uc.nar
104M uc.nar.gz
8
71M uc.nar.lz.level9 120
74M uc.nar.lz.level6
80
82M uc.nar.lz.level3 30
89M uc.nar.lz
.level1 16
97M uc.nar.zst 1
So I am bought by zstd, as user and as substitution server care taker :)
For mobile users and users without internet flatrates the increased nar
size is a problem.
Although I think the problem here is not bewtween gzip, lzip and zstd.
It's the fact that we completely download the new package even if's just
some 100 lines of diffoscope diff[0]. And most of them is due to the
change /gnu/store name...
[0] diffoscope --max-diff-block-lines 0
/gnu/store/zvcn2r352wxnmq7jayz5myg23gh9s17q-icedove-78.5.1
/gnu/store/dzjym6y7b9z4apgvvydj9lf0kbaa8qbv-icedove-78.5.1
lines: 783
size: 64k
