WGCap: A synthetic trace generation tool for capacity planning of virtual server environments

This paper describes the development and use of an interactive graphical user interface (GUI) for a synthetic trace generator named WGCap (Workload Generator for Capacity Advisor). The WGCap GUI generates traces to be imported into the Capacity Advisor, a capacity planning tool inside the HP Virtual Server Environment - VSE, for simulating the consumption of resources like CPU demand, memory size, disk data rate and network data rate. The workload generation acts in a flexible way, allowing the generation of workloads based on actual traces or on a significant set of probability distributions and statistical summaries.