Cloud infrastructure has increased dramatically over recent years, driven by user demand and increases in technological developments. Alongside this growth, there has been increased demand for better energy efficiency within CPU architecture. This has translated into greater complexity in cloud infrastructure and simplifying this for end users is proving to be one of the greatest challenges to cloud providers. CACTOS is engaged in finding solutions to tackle this problem, and Flexiant Cloud Orchestrator is playing a critical role in the project.


The CACTOS consortium brings together development partners from countries across Europe including; Sweden, Ireland, Germany and the United Kingdom. Together, these partners will develop solutions for resource optimisation, cost efficiencies and risk analysis mechanisms for evaluating cloud service infrastructures. It will collect and utilize historical data and research to deliver a simulation that will allow complex algorithm-based analysis. The project will use Flexiant’s cloud orchestrator software for stress testing applications and modelling behaviours when different IaaS level resources are mapped to workloads. This will help correlate the relationship between workloads and underlying resources with a view towards application specific Quality of Service requirements being met.

Craig Sheridan, Head of Research Projects at Flexiant, expanded on the role that FCO will play in the project: “To understand workloads behaviour during run-time, Flexiant will extract workload traces from the Flexiant Cloud Orchestrator platform. This real-world data will provide actionable insights into the development of optimisation algorithms which can then be used in conjunction with existing Flexiant functionality and in turn clarify where bottlenecks and improvements can be made to optimise and make more efficient cloud computing.”

Professor Stefan Werner, professor at Ulm University and CACTOS Project Coordinator, said: “CACTOS aims to deliver the infrastructure that best fits the application of a customer in terms of observed quality. It minimises operational costs and consequently increases competitiveness. CACTOS will bring these benefits directly to innovative cloud providers and data centre operators. The project delivers more efficient services by using modern, energy-efficient hardware. It will speed up the availability of research results by immediately integrating research concepts into prototypical versions of a commercially available cloud middleware. The ability to rapidly adopt newly available hardware will lead to a reduced energy and CO2 footprint. Additionally the time required to solve problems will be tremendously reduced.”

To find out more about the CACTOS project you can keep in touch via Twitter, Facebook or Google+ or take a look at the CACTOS website at


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