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DwarFS: A fast high compression read-only file system

github.com Software & code Software projects Software engineering Candidate
Screenshot of github.com captured 2026-07-20
Page preview · captured 2026-07-20

Resurfaced independently across 3 calendar years, with breakout response in 3 of them.

submissions
3
submitters
3
observed span
2020–2024
peak thread · 111 comments
280 pts
latest 20+ return · 2024-04-12
211 pts

Submission timeline

2007–2026

One slot for every year since HN launched. Height is that year's peak points; orange marks a 100+ point or 50+ comment breakout. Select a bar to open its strongest thread.

First comments on top threads

HN comment order

> I started working on DwarFS in 2013 and my main use case and major motivation was that I had several hundred different versions of Perl that were taking up something around 30 gigabytes of disk space, and I was unwilling to spend more than 10% of my hard drive keeping them around for when I happened to need them. It fills me with joy that someone has been coding a fs for 7 years due to perl installs taking…

Favorite part: “I had several hundred different versions of Perl that were taking up something around 30 gigabytes of disk space”. That’s a lot of Perl.

The first top-level comment from each of the four biggest threads, in HN’s own order. Excerpts are shortened; open a comment for full context.

Breakout years
3

100+ points or 50+ comments

Total points
657

reference only — not used in Hall rules or ranking

Total comments
256

reference only — not used in Hall rules or ranking

Every submission

DateTitle as submittedByPointsComments
2020-11-29DwarFS: A fast high compression read-only file systemFirst breakout · Best threaddaantje280111
2022-07-24DwarFS: A fast high compression read-only file systemmetadat16664
2024-04-12DwarFS – Deduplicating Warp-Speed Advanced Read-Only File SystemLatest 20+ point returnpyinstallwoes21181