Programmer Humor

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New File Format (lemmy.ml)

submitted 1 year ago by [email protected] to c/[email protected]

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[–] [email protected] 13 points 1 year ago (12 children)

zstd or leave

[–] [email protected] 3 points 1 year ago (6 children)

zstd may be newer and faster but lzma still compresses more

[–] [email protected] 11 points 1 year ago* (last edited 1 year ago) (4 children)

Thought I'd check on the Linux source tree tar. zstd -19 vs lzma -9:

❯ ls -lh
total 1,6G
-rw-r--r-- 1 pmo pmo 1,4G Sep 13 22:16 linux-6.6-rc1.tar
-rw-r--r-- 1 pmo pmo 128M Sep 13 22:16 linux-6.6-rc1.tar.lzma
-rw-r--r-- 1 pmo pmo 138M Sep 13 22:16 linux-6.6-rc1.tar.zst

About +8% compared to lzma. Decompression time though:

zstd -d -k -T0 *.zst  0,68s user 0,46s system 162% cpu 0,700 total
lzma -d -k -T0 *.lzma  4,75s user 0,51s system 99% cpu 5,274 total