Synchronizing/Communication Overview
In the Synchronizing/Communication view, you can observe the efficiency of communication. This is done by taking the step time minus computation and communication time. Synchronizing time is part of the total communication time for waiting and synchronizing with other workers. The Synchronizing/Communication view includes initialization, data loader, CPU computation, and so on Insights like what is the ratio of total communication is really used for exchanging data and what is the idle time of waiting for data from other workers can be drawn from this view. 



For example, if there is an inefficient workload balance or straggler issue, you’ll be able to identify it in this Synchronizing/Communication view. This view will show several workers’ waiting time being longer than others. 
