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comparison
parke edited this page Jan 4, 2022
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For reference, here is a partial list of some other software virtualization tools, in approximate(?) order from lightest to heaviest:
| Virtualization tool | Language | Approximate SLOC | Dependencies | Static binary |
|---|---|---|---|---|
chroot |
C | 370 (plus various includes) | gnulib, other parts of coreutils | |
unshare |
C | 620 (plus various includes) | other parts of util-linux? | |
| Lxroot | C++ | 1,400 | standard libraries only | 169 kB |
| vland | Shell | 1,200 + Lxroot | Dash (or Busybox) + Lxroot | |
| bubblewrap (Flatpak) | C | 4,200 | standard libraries only? | |
| Bubblejail | Python | 2,700 + bubblewrap | Python + bubblewrap (and more?) | |
| PRoot | C | 21,000 | libarchive, libtalloc, uthash(?) | 1,046 kB |
| udocker | Python | 21,000 | Python + more | |
| Firejail | C | 43,000 | (possibly none?) | |
| Singularity | Go | 72,000 | (not yet researched) | |
| LXC | C | 77,000 | (not yet researched) | |
| LXD | Go | 190,000 | (not yet researched) | |
| podman.io | Go | 1,100,000 | (not yet researched) | |
| Docker | Go | 10,000,000 | (not yet researched) | |
| OpenVZ | C | custom Linux kernel | requires a custom Linux kernel |
Sources: