Did a test on a 1.3G text file (output of `find -f -printf ...`); Macbook Pro M3 Max 64GB. All timings are "real" seconds from bash's builtin `time`. file

Did a test on a 1.3G text file (output of `find -f -printf ...`); Macbook Pro M3 Max 64GB. All timings are "real" seconds from bash's builtin `time`. files.txt 1439563776 bzip2 -9 -k 1026805779 71.3% c=67 d=53 zstd --long -19 1002759868 69.7% c=357 d=9 xz -T16 -9 -k 993376236 69.0% c=93 d=9 zstd -T12 -16 989246823 68.7% c=14 d=9 bzip3 -b 256 975153650 67.7% c=174 d=187 bzip3 -b 256 -j12 975153650 67.7% c=46 d=189 bzip3 -b 511 974113769 67.6% c=172 d=187 bzip3 -b 511 -j12 974113769 67.6% c=77s d=186 I'll stick with zstd for now (unless I need to compress the Perl source, I guess.) (edited to add 12 thread runs of bzip3 and remove superfluous filenames)