1. A method for generating a synthetic workload for stream computing, wherein the method comprises: generating an undirected graph that meets a node degree distribution parameter; obtaining a user-defined parameter for at least one feature for at least one stream computing application, wherein the at least one feature comprises at least one type of sensor stream and corresponding rate behavior; and manipulating the undirected graph to generate a synthetic workload for stream computing in compliance with the user-defined parameter for the at least one feature for the at least one stream computing application; wherein at least one of the steps is carried out by a computer device.