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glaucus

DwarFS

  • Uses zstd by default
  • Lighter on the CPU
  • No initramfs generator supports DwarFS because of accessibility at boot time or in embedded environments as it depends on a lot of advanced C++ libraries (e.g. boost and Polly)
  • Other alternatives composefs and mergerfs
  • DwarFS will likely never be able to run on embedded devices
  • EROFS will likely never be able to achieve the compression ratios of DwarFS
  • There are user space and kernel space union file systems:
    • AUFS and Overlayfs are both in the kernel and thus have lover overhead
    • DwarFS is FUSE-only and uses the latest and greatest C++ features

References

Section titled “References”