A Rust library and CLI for working with GCM/ISO files (raw bit-for-bit disk images) for the Nintendo GameCube.
cargo install gc-gcm --features=bin
~ ❯❯❯ gcm --help
gc-gcm 0.8.0
USAGE:
gcm <SUBCOMMAND>
FLAGS:
-h, --help Prints help information
-V, --version Prints version information
SUBCOMMANDS:
explain Give a brief explanation about the GCM format
extract Extract a GCM ISO to a given folder
help Prints this message or the help of the given subcommand(s)
tree List the file tree of the given GCM ISO
Benchmarking extracting all files from ISOs across various systems against wit:
(Linux 5.9, 16 GB, AMD Ryzen 9 4900HS)
| Command | Mean [ms] | Min [ms] | Max [ms] | Relative |
|---|---|---|---|---|
wit x melee.iso ./extracted |
727.1 ± 11.1 | 716.1 | 769.0 | 2.20 ± 0.05 |
gcm extract melee.iso ./extracted |
331.1 ± 6.2 | 321.9 | 345.9 | 1.00 |
(Windows 10, Ryzen 7 3700X, on SSD)
| Command | Mean [s] | Min [s] | Max [s] | Relative |
|---|---|---|---|---|
wit x GALE01.iso ./extracted |
8.551 ± 2.532 | 6.942 | 15.378 | 2.09 ± 0.83 |
gcm extract GALE01.iso ./extracted |
4.092 ± 1.082 | 3.056 | 5.732 | 1.00 |
(Windows 10, Ryzen 7 3700X, on HDD, in single thread mode)
| Command | Mean [s] | Min [s] | Max [s] | Relative |
|---|---|---|---|---|
wit x GALE01.iso ./extracted |
10.452 ± 1.812 | 8.898 | 13.982 | 1.00 |
gcm extract --single-thread GALE01.iso ./extracted |
11.810 ± 1.838 | 9.372 | 14.135 | 1.13 ± 0.26 |
(Windows 10, on HDD, multithreaded mode)
| Command | Mean [s] | Min [s] | Max [s] | Relative |
|---|---|---|---|---|
wit x melee.iso ./extracted |
109.495 ± 6.301 | 105.039 | 113.950 | 1.20 ± 0.25 |
gcm extract melee.iso ./extracted |
91.584 ± 18.295 | 78.647 | 104.520 | 1.00 |
Note: Multithreaded mode will harm performance if the ISO is on some form of physical media, such a hard drive.
React
Typescript
Django
Laravel
Facebook
Microsoft
Google
Alibaba
D3
Tencent