Optimizing the PTP Control Loop

As accurate and stable time transfer continues to increase its footprint across many market verticals, more so over convergence infrastructures such as data centers, applications such as 5G workloads, accurate packet scheduling, distributed databases, and synchronized collective communications may coexist. One of the key considerations is to further improve the overall performance of the Precision Time Protocol (PTP) by optimizing the control loop performance. This paper proposes a solution to assess optimal Proportional-Integral (PI) controller values using a Bayesian Optimization based method. We show a relative improvement of 12% in timing error, compared to the default parameters baseline.