3 ms·
In bytes: 39,516,981,435 books3.tar.gz -- 36.5% compression ratio 108,371,325,720 tar -- uncompressed Recompressed with 7-zip and xz: 25,221,357,605 b3.7z #
by elahieh 3y ago
In bytes:
39,516,981,435 books3.tar.gz -- 36.5% compression ratio
108,371,325,720 tar -- uncompressed
Recompressed with 7-zip and xz:
25,221,357,605 b3.7z # with flags: -m0=ppmd (23.3%)
27,077,329,052 books3.tar.xz # with flags: -e9 (25.0%)
To see what other slower compressors could do, I checked results from a random 1,000 books. MCM would achieve about half the original tar.gz file size, but it's very slow.
104,043,048 q-x11.mcm - 19.0% -- from q.tar
106,181,190 q-m9.mcm
114,564,722 q.tar.bsc-m03-b1000000000
118,636,713 q.tar.bsc-m03
130,621,411 q.ppmd -- 23.9%
137,874,349 q-s29.tar.lzip
138,274,566 qultra.7z
141,815,136 q.lzma
142,626,724 q9.xz -- 26.1%
146,786,015 q.brotli
146,933,603 q.p7zip
146,933,619 q.7z
149,371,106 q9.bz2
198,213,051 q.gz -- gzip -9 -- 36.3%
198,213,193 q.zip
227,074,912 q.lz4
228,463,000 q.lzop
546,201,600 q.tar