eu.cactosfp7.cactoopt.behaviourinference

Class BehavioureInference

java.lang.Object

eu.cactosfp7.cactoopt.behaviourinference.BehavioureInference

All Implemented Interfaces:

ISimpleVMBehaviourInferrer

public class BehavioureInference
extends Object
implements ISimpleVMBehaviourInferrer

Author:

ahmeda

Constructor Summary

Constructors

Constructor and Description
BehavioureInference()
BehavioureInference(int numberCores, int memSize, String hardDiskType)

Method Summary

Modifier and Type	Method and Description
SimpleVMBehaviour	getBehaviour(double from, double to) Get the behaviour of a VM with Specs stated in the instantiation of the Behaviour inference engine, assuming a simplified resource model.
SimpleVMBehaviour	getBehaviour(String vmUuuid, double from, double to) Get the behaviour of the specified VM, assuming a simplified resource model.
TreeMap<Double,IntervalBehaviourValues>	getBehaviour(String vmuuID, int numberCores, int memory, String hdType, String appTypeVM) Get the behaviour of a VM with Specs stated in the instantiation of the Behaviour inference engine, assuming a simplified resource model.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

BehavioureInference

public BehavioureInference()

BehavioureInference

public BehavioureInference(int numberCores,
                           int memSize,
                           String hardDiskType)

Method Detail

getBehaviour

public SimpleVMBehaviour getBehaviour(String vmUuuid,
                                      double from,
                                      double to)

Description copied from interface: ISimpleVMBehaviourInferrer

Get the behaviour of the specified VM, assuming a simplified resource model. The behaviour is fetched for the interval [from,to). The times are specified in simulation time seconds relative to the starting point of the simulation (0s).

Specified by:

getBehaviour in interface ISimpleVMBehaviourInferrer

Parameters:

vmUuuid - The UUID of the VM in the CACTOS infrastructure model.

from - Start time of the time interval for which the behaviour is fetched. Must be greater or equal to zero.

to - End time of the time interval for which the behaviour is fetched. Must be greater than from.

Returns:

The behaviour, containing utilization values for CPU and HDD for the given interval.

getBehaviour

public SimpleVMBehaviour getBehaviour(double from,
                                      double to)

Description copied from interface: ISimpleVMBehaviourInferrer

Get the behaviour of a VM with Specs stated in the instantiation of the Behaviour inference engine, assuming a simplified resource model. The behaviour is fetched for the interval [from,to). The times are specified in simulation time seconds relative to the starting point of the simulation (0s).

Specified by:

getBehaviour in interface ISimpleVMBehaviourInferrer

Parameters:

from - Start time of the time interval for which the behaviour is fetched. Must be greater or equal to zero.

to - End time of the time interval for which the behaviour is fetched. Must be greater than from.

Returns:

The behaviour, containing utilization values for CPU and HDD for the given interval.

getBehaviour

public TreeMap<Double,IntervalBehaviourValues> getBehaviour(String vmuuID,
                                                            int numberCores,
                                                            int memory,
                                                            String hdType,
                                                            String appTypeVM)
                                                     throws IOException

Description copied from interface: ISimpleVMBehaviourInferrer

Get the behaviour of a VM with Specs stated in the instantiation of the Behaviour inference engine, assuming a simplified resource model. The behaviour is fetched for the whole expected time of the VM running. The times are specified in simulation time seconds relative to the starting point of the simulation (0s).

Specified by:

getBehaviour in interface ISimpleVMBehaviourInferrer

numberCores - is the number of cores in the VM

memory - is the size of the memory allocated to the VM

hdType - is the HD type, should evaluate to either "HDD" or "SSD"

appTypeVM - is the Application for which the model is needed. Should evaluate to either "Wiki", "MolPro", "Playgen" or "BlackBox"

Returns:

a TreeMap, containing utilization values for CPU and HDD for the whole life time of the simulation. The key is the when the interval ends, i.e., if the first entry in the map is 100:IntervalBehaviourValues, then the first phase ends after 100 simulated seconds. During this period, the average CPU and I/O is as in the value object. Notes: Reason to do this is that the start period and the end period if provided as originally suggested in the Interface can overlap with multiple phases and will probably make their interpretation very hard. This interface is valid for Molpro now. We need to discuss if this is how we would like to have it for the simulator.

Throws:

IOException