go DiskUsage()
Pretty fast disk usage analyzer written in Go.
Gdu is intended primarily for SSD disks where it can fully utilize parallel processing.
However HDDs work as well, but the performance gain is not so huge.
Installation
Head for the releases and download binary for your system.
Using curl:
curl -L https://github.com/dundee/gdu/releases/latest/download/gdu_linux_amd64.tgz, tar xz
chmod +x gdu_linux_amd64
mv gdu_linux_amd64 /usr/bin/gdu
yay -S gdu
dpkg -i gdu_*_amd64.deb
add-apt-repository ppa:daniel-milde/gdu
apt-get update
apt-get install gdu
nix-env -iA nixos.gdu
brew install -f gdu
brew link --overwrite gdu # if you have coreutils installed as well
Snap:
snap install gdu-disk-usage-analyzer
snap connect gdu-disk-usage-analyzer:mount-observe :mount-observe
snap connect gdu-disk-usage-analyzer:system-backup :system-backup
snap alias gdu-disk-usage-analyzer.gdu gdu
binenv install gdu
Go:
go get -u github.com/dundee/gdu/v4/cmd/gdu
Usage
gdu [flags] [directory_to_scan]
Flags:
-h, --help help for gdu
-i, --ignore-dirs strings Absolute paths to ignore (separated by comma) (default [/proc,/dev,/sys,/run])
-I, --ignore-dirs-pattern strings Absolute path patterns to ignore (separated by comma)
-l, --log-file string Path to a logfile (default "/dev/null")
-m, --max-cores int Set max cores that GDU will use. 8 cores available (default 8)
-c, --no-color Do not use colorized output
-x, --no-cross Do not cross filesystem boundaries
-H, --no-hidden Ignore hidden directories (beggining with dot)
-p, --no-progress Do not show progress in non-interactive mode
-n, --non-interactive Do not run in interactive mode
-a, --show-apparent-size Show apparent size
-d, --show-disks Show all mounted disks
-v, --version Print version
Examples
gdu # analyze current dir
gdu -a # show apparent size instead of disk usage
gdu <some_dir_to_analyze> # analyze given dir
gdu -d # show all mounted disks
gdu -l ./gdu.log <some_dir> # write errors to log file
gdu -i /sys,/proc / # ignore some paths
gdu -I '.*[abc]+' # ignore paths by regular pattern
gdu -c / # use only white/gray/black colors
gdu -n / # only print stats, do not start interactive mode
gdu -np / # do not show progress, useful when using its output in a script
gdu / > file # write stats to file, do not start interactive mode
Gdu has two modes: interactive (default) and non-interactive.
Non-interactive mode is started automtically when TTY is not detected (using go-isatty), for example if the output is being piped to a file, or it can be started explicitly by using a flag.
Hard links are counted only once.
File flags
Files and directories may be prefixed by a one-character
flag with following meaning:
-
!An error occurred while reading this directory. -
.An error occurred while reading a subdirectory, size may be not correct. -
@File is symlink or socket. -
HSame file was already counted (hard link). -
eDirectory is empty.
Running tests
make test
Benchmarks
Benchmarks performed on 50G directory (100k directories, 400k files) on 500 GB SSD using hyperfine.
See benchmark target in Makefile for more info.
Cold cache
Filesystem cache was cleared using sync; echo 3, sudo tee /proc/sys/vm/drop_caches., Command, Mean [s], Min [s], Max [s], Relative, :---, ---:, ---:, ---:, ---:, gdu -npc ~, 3.714 ± 0.036, 3.685, 3.809, 1.00, dua ~, 4.703 ± 0.011, 4.691, 4.721, 1.27 ± 0.01, duc index ~, 20.776 ± 0.093, 20.591, 20.924, 5.59 ± 0.06, ncdu -0 -o /dev/null ~, 20.933 ± 0.113, 20.757, 21.073, 5.64 ± 0.06, diskus ~, 3.747 ± 0.027, 3.707, 3.779, 1.01 ± 0.01, du -hs ~, 20.096 ± 0.128, 19.916, 20.313, 5.41 ± 0.06, dust -d0 ~, 16.281 ± 0.118, 16.148, 16.490, 4.38 ± 0.05, ### Warm cache, Command, Mean [ms], Min [ms], Max [ms], Relative, :---, ---:, ---:, ---:, ---:, gdu -npc ~, 643.5 ± 11.3, 623.8, 659.9, 1.99 ± 0.12, dua ~, 389.7 ± 13.0, 374.2, 410.4, 1.20 ± 0.08, duc index ~, 1241.1 ± 19.6, 1205.4, 1274.9, 3.84 ± 0.23, ncdu -0 -o /dev/null ~, 1846.7 ± 11.9, 1823.0, 1859.9, 5.71 ± 0.33, diskus ~, 323.4 ± 18.8, 302.1, 362.2, 1.00, du -hs ~, 1027.7 ± 9.7, 1009.0, 1037.5, 3.18 ± 0.19, dust -d0 ~, 8864.4 ± 35.9, 8798.8, 8906.6, 27.41 ± 1.60, ## Alternatives
- ncdu - NCurses based tool written in pure C
- godu - Analyzer with carousel like user interface
- dua - Tool written in Rust with interface similar to gdu (and ncdu)
- diskus - Very simple but very fast tool written in Rust
- duc - Collection of tools with many possibilities for inspecting and visualising disk usage
- dust - Tool written in Rust showing tree like structures of disk usage