feat: measure each direction of the speed test for 7 s (0.0.7)

internal/server/handlers_panel_stat.go

@@ -20,17 +20,20 @@ const (
 	// statCacheFor is how long one sample answers every open status page, so
 	// several tabs cost the agent a single reading.
 	statCacheFor = 2 * time.Second
+	// speedWindow is how long the agent is asked to measure each direction
+	// for. An agent older than 0.0.7 keeps to its own 3 s.
+	speedWindow = 7 * time.Second
 	// speedTaskTimeout is how long a speed test may take. One that is not done
 	// by then is answered with what the server has counted itself.
-	speedTaskTimeout = 15 * time.Second
+	speedTaskTimeout = 35 * time.Second
 	// speedDownCap bounds one download stream; speedDownFor ends it if the
 	// agent does not hang up first.
-	speedDownCap = 256 << 20
-	speedDownFor = 6 * time.Second
+	speedDownCap = 1 << 30
+	speedDownFor = 2 * speedWindow
 	speedUpCap   = 64 << 20
 	// speedRelayUpFor is how long the agent's upload is passed on to the
 	// browser: the agent's own window with slack.
-	speedRelayUpFor = 4 * time.Second
+	speedRelayUpFor = speedWindow + time.Second
 )
 
 // statCache holds the last sample per agent and serializes its refresh.
@@ -71,7 +74,7 @@ func (s *Server) handleStatusPage(w http.ResponseWriter, r *http.Request) {
 		http.NotFound(w, r)
 		return
 	}
-	s.render(w, "status.html", map[string]any{"Agent": a})
+	s.render(w, "status.html", map[string]any{"Agent": a, "RelayUpMs": speedRelayUpFor.Milliseconds()})
 }
 
 // runTask runs a one-shot task on the agent and waits for its result.
@@ -144,7 +147,6 @@ func (s *Server) handleAgentSpeed(w http.ResponseWriter, r *http.Request) {
 	relay := r.URL.Query().Get("relay") != ""
 	m := s.meters.start(id)
 	defer s.meters.stop(id, m)
-	var args []byte
 	if relay {
 		rl := s.relays.get(id)
 		if rl == nil {
@@ -152,8 +154,8 @@ func (s *Server) handleAgentSpeed(w http.ResponseWriter, r *http.Request) {
 			return
 		}
 		defer s.relays.drop(id, rl)
-		args, _ = json.Marshal(proto.SysSpeedArgs{Relay: true})
 	}
+	args, _ := json.Marshal(proto.SysSpeedArgs{Relay: relay, WindowMs: int(speedWindow.Milliseconds())})
 	res, err := s.runTask(id, proto.TaskSysSpeed, args, speedTaskTimeout)
 	if err != nil {
 		part, ok := m.result()