"Phillip Lougher announced the release of SquashFS 2.1, a
compressed read only filesystem. Significant speedups were achieved
in this new version by indexing directories and sorting them
alphabetically. To highlight this improved performance, Phillip
offered some benchmark comparisons between SquashFS 2.0, SquashFS
2.1, zisofs, and Cloop. Other improvements include an increase in
the maximum directory size from 512 KB to 128 MB, and up to a 25%
performance increase in the mksquashfs utility..."