The above graph has logarithmic QUIPS as the y-axis and logarithmic time as the x-axis. It shows the contrast between a dedicated machine and a machine with lots of interrupts. The jitter in the HINT curve shows the disturbance in the system. The jitter may be due to multi-user environment, network daemons, or any other kind of periodic or aperiodic activity of the system. One can reduce small amounts of jitter by sampling a large number of data points and by increasing the number of repetitions per data point.