Fuse-Archive

fuse-archive is a program that serves an archive or compressed file (e.g. foo.tar, foo.tar.gz, foo.xz, foo.zip) as a FUSE file system.

It is similar to the fuse-zip program but speaks a larger range of archive or compressed file formats.

It is similar to the archivemount program but can be much faster (see the Performance section below) although it can only mount read-only, not read-write.

Build

$ git clone https://github.com/google/fuse-archive.git
$ g++ -O3 fuse-archive/src/main.cc `pkg-config libarchive fuse --cflags --libs` -o my-fuse-archive

On a Debian system, you may first need to install some dependencies:

$ sudo apt install libarchive-dev libfuse-dev

Performance

Create a single .tar.gz file that is 256 MiB decompressed and 255 KiB compressed (the file just contains repeated 0x00 NUL bytes):

$ truncate --size=256M zeroes
$ tar cfz zeroes-256mib.tar.gz zeroes

fuse-archive timings:

$ time ./my-fuse-archive zeroes-256mib.tar.gz ~/mnt
real    0m0.010s
$ dd if=~/mnt/zeroes of=/dev/null status=progress
524288+0 records in
524288+0 records out
268435456 bytes (268 MB, 256 MiB) copied, 0.836048 s, 321 MB/s
$ fusermount -u ~/mnt

archivemount timings:

$ time archivemount      zeroes-256mib.tar.gz ~/mnt
real    0m0.581s
$ dd if=~/mnt/zeroes of=/dev/null status=progress
268288512 bytes (268 MB, 256 MiB) copied, 569 s, 471 kB/s
524288+0 records in
524288+0 records out
268435456 bytes (268 MB, 256 MiB) copied, 570.146 s, 471 kB/s
$ fusermount -u ~/mnt

Here, fuse-archive was 58x faster (0.010s vs 0.581s) to bind the mountpoint and daemonize, and 682x faster (0.836048s vs 570.146s) to copy out the decompressed contents.

For the second ratio, the key difference is that fuse-archive does not use archivemount's quadratic complexity algorithm.

Disclaimer

This is not an official Google product, it is just code that happens to be owned by Google.

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Updated on September 2021.