[pbs-devel] applied-series: [PATCH proxmox-backup v6 0/4] datastore: remove config reload on hot path

[Fabian Grünbichler]

On Mon, 05 Jan 2026 15:16:10 +0100, Samuel Rufinatscha wrote:
> this series reduces CPU time in datastore lookups by avoiding repeated
> datastore.cfg reads/parses in both `lookup_datastore()` and
> `DataStore::Drop`. It also adds a TTL so manual config edits are
> noticed without reintroducing hashing on every request.
> 
> While investigating #6049 [1], cargo-flamegraph [2] showed hotspots
> during repeated `/status` calls in `lookup_datastore()` and in `Drop`,
> dominated by `pbs_config::datastore::config()` (config parse).
> 
> [...]

Applied with some rewording of commit messages to make them less
verbose/boiler-platey, thanks!

[1/4] config: enable config version cache for datastore
      commit: d14b7469a72f4265bcc1727a1274b207bc201be0
[2/4] partial fix #6049: datastore: impl ConfigVersionCache fast path for lookups
      commit: be6d251e4483474754cdc5f6d12f2674e22fa132
[3/4] partial fix #6049: datastore: use config fast-path in Drop
      commit: 584fa961909c32565046c39f95485273c0a8cba5
[4/4] partial fix #6049: datastore: add TTL fallback to catch manual config edits
      commit: 07ab13e5aaf1d6b790234d5238c1c3668c56c22e

Best regards,
-- 
Fabian Grünbichler <f.gruenbichler at proxmox.com>