Single 512 MB POST over HTTP/2 was throttled by the per-stream h2
flow-control window, reading ~4x low. LibreSpeed uses parallel upload
streams measured via XHR progress events, which amortizes the window
limit (h2 must stay on for trojan-gRPC).
- Vendor speedtest.js + speedtest_worker.js (LGPL) into assets
- mtr-backend.py: ThreadingHTTPServer, /api/st/up upload sink,
/api/st/getip; parallel streams need concurrent handling
- nginx: speedtest locations without limit_req (limit_conn instead),
ping answered by nginx directly, h2 preread/body buffer tuning
- No telemetry, no database
- Drop 512 MB test file; patch script now also substitutes
__SERVER_DOMAIN__/__SERVER_IP__ placeholders
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
