Ellie HuxtableandClaude Opus 5.5 87742b1767 perf: make bulk history deletes ~3x faster
Deleting 200k history entries in one request (the scale test's
two_hundred_k case) took ~63s locally / ~33s in CI, almost all of it
per-id work:

- Removing captured output: the output search index ran two DELETEs per
  id inside the transaction -- 400k statements, even though most ids in a
  bulk delete never had output indexed. Now one statement per chunk of
  ids that fits SQLite's bind-parameter limit. 20.8s -> ~0.5s.
- Deleting history rows: `delete_rows` ran one `delete ... where id = ?`
  per id. Now chunked `where id in (...)` statements, like save_bulk's
  inserts. 13.6s -> 2.6s. (Drops the now-unused delete_row_raw.)
- Writing tombstones: every record gets its own content key and key wrap,
  and push_records encrypted a 1000-record chunk serially on one core.
  encrypt_records now spreads a chunk across the blocking pool (inline
  below 64 records, so single pushes are unaffected), keeping order.
  18.2s -> 3.8s.

The 200k delete now takes 20.8s locally (from 62.7s). What's left is
mostly writing the already-batched tombstone rows and the output blob
store's removes.

atuin-client and atuin-daemon: 905 tests pass; clippy -D warnings clean.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
2026-09-26 22:21:11 +00:00
2026-09-18 13:20:22 -07:00
2021-04-14 17:40:50 +00:00
2026-09-18 20:30:47 -07:00
2021-05-14 08:31:15 +01:00
2022-03-17 21:43:54 +00:00
2026-07-23 23:41:06 +00:00
2021-05-10 21:28:07 +01:00
2026-07-23 23:41:06 +00:00
2021-02-14 16:22:25 +00:00
2026-09-11 04:15:25 +00:00

Text changing depending on mode. Light: 'So light!' Dark: 'So dark!'

magical shell history


CodSpeed

Atuin replaces your existing shell history with a SQLite database, and records additional context for your commands. Additionally, it provides optional and fully encrypted synchronisation of your history between machines, via an Atuin server.

animated

exit code, duration, time and command shown

As well as the search UI, it can do things like this:

# search for all successful `make` commands, recorded after 3pm yesterday
atuin search --exit 0 --after "yesterday 3pm" make

You may use either the server I host, or host your own! Or just don't use sync at all. As all history sync is encrypted, I couldn't access your data even if I wanted to. And I really don't want to.

Features

  • rebind ctrl-r and up (configurable) to a full screen history search UI
  • store shell history in a sqlite database
  • back up and sync encrypted shell history
  • the same history across terminals, across sessions, and across machines
  • log exit code, cwd, hostname, session, command duration, etc
  • calculate statistics such as "most used command"
  • old history file is not replaced
  • quick-jump to previous items with Alt-<num>
  • switch filter modes via ctrl-r; search history just from the current session, directory, or globally
  • enter to execute a command, tab to edit

Documentation

Supported platforms

Atuin supports zsh, bash, fish, nushell, xonsh, and PowerShell. See Supported platforms for the full matrix and what each tier means.

Community

Forum

Atuin has a community forum, please ask here for help and support: https://forum.atuin.sh/

IRC

We're also available via #atuin on libera.chat

Discord

Atuin also has a community Discord, available here

Quickstart

This will sign you up for the Atuin Cloud sync server. Everything is end-to-end encrypted, so your secrets are safe!

Read the docs for an offline setup, self-hosted server, and more.

curl --proto '=https' --tlsv1.2 -LsSf https://setup.atuin.sh | sh

atuin register -u <USERNAME> -e <EMAIL>
atuin import auto
atuin sync

Then restart your shell!

Note

For Bash users: The above sets up bash-preexec for necessary hooks, but bash-preexec has limitations. For details, please see the Bash section of the shell plugin documentation.

Related projects

Please open a PR for any others!

Contributors

Made with contrib.rocks.

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✨ Magical shell history
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