Can you test it out and post results back here?
Original file: 129MB xz, 1.2G uncompressed.
"zstd -T0": 1.34 seconds, 189M
"xz -T0": 63 seconds, 131M
"xz -T0 -9": 183 seconds, 125M
"bzip3 -e -j 6": 21 seconds, 129M (edited, was SIGSEGV)
"bzip3 -e": 84 seconds, 129M
I used linux source because the source website uses linux and recommends bzip3 for compressing source and text. Results were on Ubuntu 22.04, Intel(R) Core(TM) i7-10750H CPU @ 2.60GHz
"bzip3 -e -j 6 -b 50": 25 seconds, 125MB
So nearly as good as the best of xz, but in a 20th the time.
However: Do note that any unexpected use is met with a SIGSEGV: using as a filter, using "-j6" instead of "-j 6", not specifying "-e"...
% bzip3 -e -j 6 -b 50 corpus/calgary.tar
% bzip3 -j 6 -b 50 corpus/calgary.tar
bzip3 - A better and stronger spiritual successor to bzip2.
Copyright (C) by Kamila Szewczyk, 2022. Licensed under the terms of GPLv3.
Usage: bzip3 [-e/-d/-t/-c] [-b block_size] input output
Operations:
-e: encode
-d: decode
-t: test
Extra flags:
-c: force reading/writing from standard streams
-b N: set block size in MiB
-j N: set the amount of parallel threads
% cat corpus/calgary.tar | bzip3 -b 10 -e -c | wc -c
807959
} else if (argv[i][1] == 'j') {
workers = atoi(argv[i + 1]);
i++;
% ./bzip3 -j3 < README.md
Segmentation fault
sec KB
gzip 0.19 1070
zstd 0.02 1063
zstd -19 1.47 897
bzip2 0.35 891
brotli 8.12 862
xz 1.35 853
bzip3 0.52 808"xz -d": 7.92 seconds
"bzip3 -d" as filter: SEGSEGV
"bzip3 -d linux-5.17.6.tar.bz3": 81 seconds
"bzip -d -j 6": 21.35 seconds (edit)
Lest I be called a liar again:
$ ./bzip3-1.0.1/bzip3 -d <linux-5.17.6.tar.bz3 >/dev/null
fish: Job 1, 'time ./bzip3-1.0.1/bzip3 -d <li…' terminated by signal SIGSEGV (Address boundary error)