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feat: enhance telemetry metrics with target FPS tracking and logging

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bartool
2026-05-12 21:49:27 +02:00
parent b238f0d9b4
commit aec286c5ec
5 changed files with 185 additions and 85 deletions
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31
app/overlay/telemetry_overlay.py
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@@ -24,6 +24,15 @@ class TelemetryOverlay(IOverlayLayer):
overlay = TelemetryOverlay()
camera_view.add_overlay_layer(overlay)
telemetry_collector.metrics_updated.connect(overlay.on_metrics_updated)
Display format:
FPS req 60.0 ← what was requested from camera
FPS got 30.2 ← what camera actually delivered
Frame 33.1 ms
Drop 0
CPU sys 14.8 % ← normalised by cpu_count (matches Task Manager)
CPU core 118.4 % ← per single core (can exceed 100%)
Mem 68 MB
"""
def __init__(self) -> None:
@@ -60,7 +69,6 @@ class TelemetryOverlay(IOverlayLayer):
box_w = max_width + OVERLAY_PADDING * 2
box_h = line_height * len(lines) + OVERLAY_PADDING * 2
# Position relative to the actual video area, not the full widget
x = video_rect.left() + OVERLAY_MARGIN
y = video_rect.top() + OVERLAY_MARGIN
@@ -83,12 +91,19 @@ class TelemetryOverlay(IOverlayLayer):
@staticmethod
def _format_lines(snap: TelemetrySnapshot) -> list[str]:
lines = [
f"FPS {snap.fps:>6.1f}",
f"Frame {snap.frame_time_ms:>6.1f} ms",
f"Drop {snap.dropped_frames:>6d}",
f"CPU {snap.cpu_percent:>5.1f} %",
]
lines: list[str] = []
# FPS — show target if known, then actual
if snap.target_fps is not None:
lines.append(f"FPS req {snap.target_fps:>6.1f}")
lines.append(f"FPS got {snap.fps:>6.1f}")
lines.append(f"Frame {snap.frame_time_ms:>6.1f} ms")
lines.append(f"Drop {snap.dropped_frames:>6d}")
lines.append(f"CPU sys {snap.cpu_percent_sys:>5.1f} %")
lines.append(f"CPU core {snap.cpu_percent_core:>5.1f} %")
if snap.memory_mb is not None:
lines.append(f"Mem {snap.memory_mb:>5.0f} MB")
lines.append(f"Mem {snap.memory_mb:>5.0f} MB")
return lines