Provides a model for power consumption of hosts, depending on utilization of a critical system component, such as CPU. This is the fundamental class to enable power-aware Hosts. However, a Host just provides power usage data if a PowerModel is set using the . The power consumption data is return in Watt-Second (Ws), which is just in a different scale than the usual Kilowatt-Hour (kWh).
If you are using any algorithms, policies or workload included in the power package please cite the following paper:
- Anton Beloglazov, and Rajkumar Buyya, “Optimal Online Deterministic Algorithms and Adaptive Heuristics for Energy and Performance Efficient Dynamic Consolidation of Virtual Machines in Cloud Data Centers”, Concurrency and Computation: Practice and Experience (CCPE), Volume 24, Issue 13, Pages: 1397-1420, John Wiley & Sons, Ltd, New York, USA, 2012
Author: Anton Beloglazov, Manoel Campos da Silva Filho
getEnergyLinearInterpolation(double fromUtilization, double toUtilization, double time)¶
Gets an estimation of energy consumption using linear interpolation of the utilization change. It’s required to set a in order to get power usage data.
- fromUtilization – the initial utilization percentage
- toUtilization – the final utilization percentage
- time – the time span between the initial and final utilization to compute the energy consumption
the estimated energy consumption
Gets the max power that can be consumed by the host in Watt-Second (Ws).
Returns: the max consumption power in Watt-Second (Ws)
Gets power consumption in Watt-Second (Ws) of the Power Model, according to the utilization percentage of a critical resource, such as CPU.
The power consumption data is just available while the host is active.
- utilization – the utilization percentage (between [0 and 1]) of a resource that is critical for power consumption.
- IllegalArgumentException – when the utilization percentage is not between [0 and 1]
the power consumption in Watt-Second (Ws)