Viktor Barzin
35f1987ac1
Add navigation & usage metrics for end-user experience visibility
...
Instrument DB query timing (11 operations across 3 repositories),
streaming lifecycle (TTFB, duration, feature count), cache operation
latency, listing detail step breakdown, and frontend page load /
time-to-first-listing / stream download / detail load metrics.
Adds 16 new OTel instruments, extends the perf ingestion endpoint
with 4 new frontend metrics, and adds ~20 Grafana dashboard panels
across 4 new rows (DB Query Performance, Streaming Performance,
Listing Detail Breakdown, Cache Performance, Frontend Navigation).
2026-02-23 20:28:42 +00:00
Viktor Barzin
d90fa38776
Add frontend performance metrics pipeline to Prometheus
...
Collect browser-side worker round-trips, computation times, main-thread
operations, and feature counts, batch them client-side, and expose as
Prometheus histograms via a new POST /api/perf endpoint.
2026-02-22 17:30:29 +00:00
