new logging

rfg_adc_plotter/gui/pyqtgraph_backend.py

@@ -38,6 +38,7 @@ from rfg_adc_plotter.state import RingBuffer, RuntimeState
 from rfg_adc_plotter.types import SweepAuxCurves, SweepInfo, SweepPacket
 
 RAW_PLOT_MAX_POINTS = 4096
+DEBUG_FRAME_LOG_EVERY = 10
 
 
 def _visible_levels_pyqtgraph(data: np.ndarray, plot_item) -> Optional[Tuple[float, float]]:
@@ -1240,6 +1241,8 @@ def run_pyqtgraph(args) -> None:
     except Exception:
         pass
 
+    processed_frames = 0
+
     def refresh_current_fft_cache(sweep_for_fft: np.ndarray, bins: int) -> None:
         runtime.current_fft_complex = compute_fft_complex_row(
             sweep_for_fft,
@@ -1251,6 +1254,7 @@ def run_pyqtgraph(args) -> None:
         runtime.current_fft_db = fft_mag_to_db(runtime.current_fft_mag)
 
     def drain_queue() -> int:
+        nonlocal processed_frames
         drained = 0
         while True:
             try:
@@ -1301,6 +1305,22 @@ def run_pyqtgraph(args) -> None:
                         runtime.full_current_aux_curves = None
             runtime.current_info = info
             refresh_current_window(push_to_ring=True)
+            processed_frames += 1
+            if processed_frames % DEBUG_FRAME_LOG_EVERY == 0:
+                try:
+                    queue_size = queue.qsize()
+                except Exception:
+                    queue_size = -1
+                sys.stderr.write(
+                    "[debug] ui frames:%d last_sweep:%s ch:%s width:%d queue:%d\n"
+                    % (
+                        processed_frames,
+                        str(info.get("sweep") if isinstance(info, dict) else None),
+                        str(info.get("ch") if isinstance(info, dict) else None),
+                        int(getattr(sweep, "size", 0)),
+                        int(queue_size),
+                    )
+                )
         if drained > 0:
             update_physical_axes()
         return drained