VCS marks sudden changes in monitor times by comparing the time taken for each monitor cycle with the ExpectedValue. If this difference exceeds the ValueThreshold, VCS sends a notification about the sudden change in monitor time. Note that VCS sends this notification only if monitor time increases.

VCS marks gradual changes in monitor times by comparing the benchmark average and the moving average of monitor cycle times. VCS computes the benchmark average after a certain number of monitor cycles and computes the moving average after every monitor cycle. If the current moving average exceeds the benchmark average by more than the AvgThreshold, VCS sends a notification about this gradual change in the monitor cycle time.