prop/test
Graham McIntire 9bf96349ad
perf(telemetry): cut hot-path overhead on scores_at cache hits
Three small wins from a telemetry audit:

1. Propagation.scores_at/3 wrapped every call in Instrument.span, firing
   two handler dispatches that dominated the ~10µs ETS lookup on cache
   hits. The map's LiveView fires this on every pan + point-click, so
   hot-path latency was mostly telemetry. Span now wraps only the miss
   branch (where disk IO makes the duration signal meaningful); hit path
   still emits the cheap hit/miss counter the cache-ratio panel reads.

2. Oban queue-depth poller: 10s → 30s. Every replica independently
   GROUP-BYs oban_jobs, so each extra replica paid ~3 redundant queries
   per minute for a gauge that moves on the hour-scale anyway.

3. Dropped summary(phoenix.endpoint.start.system_time): summarizing a
   wall-clock timestamp produces no useful aggregate — stop.duration
   below it is the meaningful signal.
2026-04-20 16:12:01 -05:00
..
fixtures NarrClient.extract_profile_from_file/3 + fetch_profile_at/2 2026-04-15 18:54:02 -05:00
microwaveprop perf(telemetry): cut hot-path overhead on scores_at cache hits 2026-04-20 16:12:01 -05:00
microwaveprop_web feat(status): show Rust prop-grid-rs work queue alongside Oban panel 2026-04-19 17:07:38 -05:00
mix/tasks fix enrichment 2026-04-02 15:30:41 -05:00
support feat(rainscatter): classify QSO propagation mechanism from common-volume radar 2026-04-17 15:57:59 -05:00
test_helper.exs Exclude slow GRIB2 fixture tests by default (81s -> 16s) 2026-03-31 10:00:13 -05:00