Hacker ApprovedDepartments

tmpfs

Ranked 10 of 10 filesystems by recommenders

People recommend tmpfs as a simple way to keep small, rapid writes in RAM, such as small databases, which can extend SSD life.

People recommend tmpfs as a simple way to keep small, rapid writes in RAM, such as small databases, which can extend SSD life.

5 people gave an opinion

recommend it
5
criticize it
0
approval share
100%
Each figure is one person. RecommendsCriticizes

Recommended in 4 of 13 months

  1. November 2025: not recommended
  2. December 2025: recommended
  3. January 2026: not recommended
  4. February 2026: recommended
  5. March 2026: recommended
  6. April 2026: not recommended
  7. May 2026: not recommended
  8. June 2026: not recommended
  9. July 2026: not recommended
  10. August 2026: recommended
  11. September 2026: not recommended
  12. October 2026: not recommended
  13. November 2026: not recommended (month in progress)

Why it doesn’t carry the badge

  • 5 people recommend itNeeds 10 or more, not met.
  • Nobody criticizes itNeeds 2 to 1 or better, met.
  • Recommended in 4 of 13 monthsNeeds 4 or more, met.

The same three rules apply to every product, and the badge can’t be bought. How the badge works

What people say about it

The reasons people give, with the number of comments that give each one. Open a reason to read what they said.

Why people recommend it

Each mark is one comment

  • Reduces SSD wear on tiny writes

    “using tmpfs wherever someone can is one way to extend the life of SSD's/NVME for tiny rapid writes”

    Comment from 11 Feb 2026 in “Gnome leaks thumbnails from encrypted and external drives”
  • Fast when data fits in memory

    “If your db is small enough to fit in tmpfs, than sure, that is hard to beat.”

    Comment from 23 Dec 2025 in “Instant database clones with PostgreSQL 18”
  • Used in production systems

    “we are doing that in production”

    Comment from 7 Aug 2026 in “Making Postgres 300x faster for analytics: batching, operator fusion, and SIMD”
  • Seen as the simple answer

    “See tmpfs for a trivial answer.”

    Comment from 17 Mar 2026 in “Why Node.js needs a virtual file system”

Other filesystems people recommend

The four most recommended other filesystems, with the same counts for each, so you can compare like for like. The tick on each bar marks the 2 to 1 line the badge needs.

tmpfs compared with 4 alternatives
ProductRecommendCriticizeApprovalMonthsOwnedBadge
ZFS2895684%1310 yrs27 ownersApproved
Btrfs1059054%129 yrs15 owners—
ext432586%12—Approved
bcachefs281467%8—Approved
tmpfsThis page50100%4——
See all 10 filesystems, ranked

What people said

4 of the 5 comments that mention it, newest first. Each links to the original comment.

“we are doing that in production”

RecommendsComment from 7 Aug 2026 in “Making Postgres 300x faster for analytics: batching, operator fusion, and SIMD”

“See tmpfs for a trivial answer.”

RecommendsComment from 17 Mar 2026 in “Why Node.js needs a virtual file system”

“using tmpfs wherever someone can is one way to extend the life of SSD's/NVME for tiny rapid writes”

RecommendsComment from 11 Feb 2026 in “Gnome leaks thumbnails from encrypted and external drives”

“If your db is small enough to fit in tmpfs, than sure, that is hard to beat.”

RecommendsComment from 23 Dec 2025 in “Instant database clones with PostgreSQL 18”

Counts come from 1,795,640 Hacker News comments, November 2025 to November 2026. How we count. Report a mistake.