Meaning
Statistical distributions representing the time difference between a local slave clock and its reference master provide a visual profile of synchronization stability. Data points collected over several hours reveal the frequency and magnitude of timing deviations within a network segment. An offset from master histogram displays the range of phase errors, with the width of the central peak indicating the precision of the synchronization loop.
Error Distribution
Wide distributions suggest high network jitter or unstable oscillator performance that might require hardware upgrades. An offset from master histogram that shows a narrow, tall peak indicates a highly stable and well-calibrated timing path. Monitoring this shape allows engineers to identify if the current network capacity is sufficient for the timing accuracy required by the application.
Outlier Identification
Rare events that cause extreme timing spikes appear as thin bars far from the center of the graph. When an offset from master histogram shows a long tail, it indicates that while the average sync is good, occasional packets are delayed enough to cause data loss or timestamping errors. Identifying these outliers is a required step in moving from a laboratory pilot to a production environment where reliability must be guaranteed.
System Performance
Consistent tracking of these distributions allows an operator to see how changes in network traffic load affect timing accuracy. Production systems use these visualizations to verify that the synchronization capability meets the required capacity for the intended transaction volume.
