The Modulo Time Plot is useful for quick visual inspection of system performance including dynamic range, distortion and error plots, the detection of random bit errors, and timing errors between the test signal and the sample clock. 
The method also works well on plotting eye diagrams.
 F. H. Irons andD. M. Hummels,
"The Modulo Time Plot - a Useful Data Acquisition Diagnostic Tool" IEEE Tr. on Instrumentation and Measurement, Vol.45, NO. 3, June 1996