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ipx's resident memory climbed from about 40 MB to 500-850 MB each night while scans ran five times as often, and stayed there until a restart; the directory sat at 1.25 GiB idle. glibc's allocator keeps what each thread's arena freed. mimalloc gives freed pages back, so resident memory now follows what is in use. jemalloc was the first choice for its in-use figures, but its upstream was archived in 2025. Declared once in the directory crate, which ipx builds in, so both binaries get it. What was missing to see it: the directory served no /metrics (now on metrics_bind, a port apart from the tunnel's), nothing counted the feed bytes fetched, and the fetch span had no body size. The feed crate's spans never reached Tempo either: both trace exporters filtered to their own crate, so ipx_feed's fetch and parse spans were dropped. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Changelog: ipx-directory
The directory of public podcasts that ipx servers share (docs/directory.md). ipx's changelog is crates/ipx/CHANGELOG.md, the page's web/CHANGELOG.md.
Its version is in crates/directory/Cargo.toml, and a release is tagged directory-vX.Y.Z.
The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.
Unreleased
Added
- With
metrics_bindset, the directory serves Prometheus metrics on a port of its own: memory, open files, and the feeds it has fetched and their bytes. A feed check's trace says how large the feed was (#224).
Changed
- The directory uses mimalloc instead of glibc's allocator, so it gives back memory it has freed instead of holding over a gigabyte while idle (#224).
- The example in docs/directory.md has no healthcheck;
ipx-directory healthis still there to run by hand (#218).
1.0.0 - 2026-10-12
Added
- Anyone can browse the directory in a web browser, read only: the most subscribed, categories, every feed A to Z, a search by name, and each feed's page with its latest items and its address to copy into any podcast app (#215).
GET /v1/instanceslists the servers holding a snapshot, with their feeds and subscribers, for an admin token (#206).ipx-directory, a directory of public podcasts that ipx servers share: each sends the public feeds its people subscribe to, and any server with a token browses them, each feed listed once it has been read. Tokens are in its config file, each read-only, read-write or admin, and revoked one at a time (#204, #205).- Traces: a span a request, joining the trace of the ipx server that called, and a trace a refresher round with a span a feed (#213).