trackSignalUpdate method
Track signal update performance
Implementation
void trackSignalUpdate(String signalId, Duration duration) {
_signalUpdateCounts[signalId] = (_signalUpdateCounts[signalId] ?? 0) + 1;
final current = _signalUpdateDurations[signalId] ?? Duration.zero;
_signalUpdateDurations[signalId] = current + duration;
}