The need for energy efficiency is more crucial issue than five years ago. It involves all system layers and aspects, including physical nodes, cooling of nodes, networking hardware, communication protocols and finally the servers and services themselves. The conceptual framework of cloud computing may therefore be a way forward to analyze, identify and implement overall energy savings in a system to attain truly ‘green’ computing services.
In contrast to hardware version, the software could be optimized easier on the proper energy level. In the case of any one service provider site, algorithms to multiplex and de-multiplex workload in order to save energy are needed, and they should incorporate the trade-off between performance and the reduction in service cost due to energy savings. In addition to scheduling and the mapping of workflows, the improvement
of energy-aware cloud applications themselves can also benefit from software optimization. In a business environment based on cloud computing, workflows that run over many sites will tend to be popular.
A user may consider a tradeoff between a more energy-efficient service and a more reliable or faster service, and compose the service in a way that fits its needs. Thus it should also be possible to develop accounting mechanisms that track and depend on the energy that has been used by a service.
No comments:
Post a Comment