Package org.cloudbus.cloudsim.vms

Class VmSimple

java.lang.Object

org.cloudbus.cloudsim.core.CustomerEntityAbstract

org.cloudbus.cloudsim.vms.VmSimple

All Implemented Interfaces:

Comparable<Vm>, AbstractMachine<Resource>, ChangeableId, CustomerEntity, Delayable, Identifiable, ResourceStatsComputer<VmResourceStats>, UniquelyIdentifiable, TimeZoned, Resourceful, Vm

Direct Known Subclasses:

NetworkVm, VmGroup

public class VmSimple
extends CustomerEntityAbstract
implements Vm

Implements the basic features of a Virtual Machine (VM) that runs inside a Host that may be shared among other VMs. It processes cloudlets. This processing happens according to a policy, defined by the CloudletScheduler. Each VM has a owner (user), which can submit cloudlets to the VM to execute them.

Since:

CloudSim Toolkit 1.0

Author:

Rodrigo N. Calheiros, Anton Beloglazov

Field Summary

Fields inherited from interface org.cloudbus.cloudsim.vms.Vm

LOGGER, NULL

Constructor Summary

Constructors

Constructor	Description
VmSimple(double mipsCapacity, long numberOfPes)	Creates a Vm with 1024 MEGA of RAM, 100 Megabits/s of Bandwidth and 1024 MEGA of Storage Size.
VmSimple(double mipsCapacity, long numberOfPes, CloudletScheduler cloudletScheduler)	Creates a Vm with 1024 MEGA of RAM, 100 Megabits/s of Bandwidth and 1024 MEGA of Storage Size.
VmSimple(long id, double mipsCapacity, long numberOfPes)	Creates a Vm with 1024 MEGA of RAM, 100 Megabits/s of Bandwidth and 1024 MEGA of Storage Size.
VmSimple(long id, long mipsCapacity, long numberOfPes)	Creates a Vm with 1024 MEGA of RAM, 100 Megabits/s of Bandwidth and 1024 MEGA of Storage Size.
VmSimple(Vm sourceVm)	A copy constructor that creates a VM based on the configuration of another one.

Method Summary

Modifier and Type	Method	Description
Vm	addExpectedFreePesNumber(long pesToAdd)	Adds a given number of expected free PEs to the total number of expected free PEs.
Vm	addOnCreationFailureListener(EventListener<VmDatacenterEventInfo> listener)	Adds a listener object that will be notified when the Vm fail in being placed for lack of a Host with enough resources in a specific Datacenter.
Vm	addOnHostAllocationListener(EventListener<VmHostEventInfo> listener)	Adds a listener object that will be notified when a Host is allocated to the Vm, that is, when the Vm is placed into a given Host.
Vm	addOnHostDeallocationListener(EventListener<VmHostEventInfo> listener)	Adds a listener object that will be notified when the Vm is moved/removed from a Host.
Vm	addOnMigrationFinishListener(EventListener<VmHostEventInfo> listener)	Adds a listener object that will be notified when a VM finishes migrating to a target Host.
Vm	addOnMigrationStartListener(EventListener<VmHostEventInfo> listener)	Adds a listener object that will be notified when a VM starts migrating to a target Host.
Vm	addOnUpdateProcessingListener(EventListener<VmHostEventInfo> listener)	Adds a listener object that will be notified every time when the processing of the Vm is updated in its Host.
void	addStateHistoryEntry(VmStateHistoryEntry entry)	Adds a VM state history entry.
int	compareTo(Vm obj)	Compare this Vm with another one based on getTotalMipsCapacity().
void	enableUtilizationStats()	Enables the data collection and computation of utilization statistics.
MipsShare	getAllocatedMips()
ResourceManageable	getBw()	Gets bandwidth resource (in Megabits/s) assigned to the Vm, allowing to check its capacity and usage.
VerticalVmScaling	getBwVerticalScaling()	Gets a VerticalVmScaling that will check if the Vm's Bandwidth is overloaded, based on some conditions defined by a Predicate given to the VerticalVmScaling, and then request the BW up scaling.
CloudletScheduler	getCloudletScheduler()	Gets the Cloudlet scheduler the VM uses to schedule cloudlets execution.
double	getCpuPercentRequested()	Gets the percentage of CPU capacity (MIPS %) requested by all Cloudlets running on this VM at the current time.
double	getCpuPercentRequested(double time)	Gets the percentage of CPU capacity (MIPS %) requested by all Cloudlets running on this VM at the given time.
double	getCpuPercentUtilization()	Gets the current percentage of CPU capacity (MIPS %) used by all Cloudlets running on this VM.
double	getCpuPercentUtilization(double time)	Gets the percentage of CPU capacity (MIPS %) used by all Cloudlets running on this VM at the given time.
VmResourceStats	getCpuUtilizationStats()	Gets machine's CPU utilization percentage statistics (between [0 and 1]).
long	getCurrentRequestedBw()	Gets the current requested bw.
MipsShare	getCurrentRequestedMips()	Gets a copy list of current requested MIPS of each virtual Pe, avoiding the original list to be changed.
long	getCurrentRequestedRam()	Gets the current requested ram (in Megabytes).
static long	getDefaultBwCapacity()	Gets the Default Bandwidth capacity (in Mbps) for creating VMs.
static long	getDefaultRamCapacity()	Gets the Default RAM capacity (in MB) for creating VMs.
static long	getDefaultStorageCapacity()	Gets the Default Storage capacity (in MB) for creating VMs.
String	getDescription()	Gets the Vm description, which is an optional text which one can use to provide details about this of this VM.
long	getExpectedFreePesNumber()	Gets the expected free pes number before the VM starts executing.
double	getExpectedHostCpuUtilization(double vmCpuUtilizationPercent)	Computes what would be the relative percentage of the CPU the VM is using from a PM's total MIPS Capacity, considering that the VM 's CPU load is at a given percentage.
long	getFreePesNumber()	Gets the current number of free PEs.
VmGroup	getGroup()	Gets the group this Vm belongs to
HorizontalVmScaling	getHorizontalScaling()	Gets a HorizontalVmScaling that will check if the Vm is overloaded, based on some conditions defined by a Predicate given to the HorizontalVmScaling, and then request the creation of new VMs to horizontally scale the Vm.
Host	getHost()	Gets the Host where the Vm is or will be placed.
double	getHostBwUtilization()	Computes the relative percentage of the Bandwidth the VM is using from the Host's total Capacity for the current simulation time.
double	getHostCpuUtilization(double time)	Computes the relative percentage of the CPU the VM is using from the Host's total MIPS Capacity for the current simulation time.
double	getHostRamUtilization()	Computes the relative percentage of the RAM the VM is using from the Host's total Capacity for the current simulation time.
double	getLastBusyTime()	Gets the last time the Machine was running some process.
double	getMips()	Gets the individual MIPS capacity of any machine's Pe, considering that all PEs have the same capacity.
long	getNumberOfPes()	Gets the overall number of Pes the machine has, that include PEs of all statuses, including failed PEs.
VerticalVmScaling	getPeVerticalScaling()	Gets a VerticalVmScaling that will check if the Vm's Pe is overloaded, based on some conditions defined by a Predicate given to the VerticalVmScaling, and then request the RAM up scaling.
Processor	getProcessor()	Gets the Processor of this VM.
ResourceManageable	getRam()	Gets the RAM resource assigned to the Vm, allowing to check its capacity (in Megabytes) and usage.
VerticalVmScaling	getRamVerticalScaling()	Gets a VerticalVmScaling that will check if the Vm's RAM is overloaded, based on some conditions defined by a Predicate given to the VerticalVmScaling, and then request the RAM up scaling.
MipsShare	getRequestedMips()
ResourceManageable	getResource(Class<? extends ResourceManageable> resourceClass)	Gets a given AbstractMachine Resource, such as Ram or Bandwidth, from the List of machine resources.
List<ResourceManageable>	getResources()	Gets a read-only list of resources the machine has.
double	getStartTime()	Gets the last time the machine was started up (in seconds).
List<VmStateHistoryEntry>	getStateHistory()	Gets a read-only list with the history of requests and allocation of MIPS for this VM.
double	getStopTime()	Gets the time the VM was destroyed into the last Host it executed (in seconds).
Resource	getStorage()	Gets the storage device of the VM, which represents the VM image, allowing to check its capacity (in Megabytes) and usage.
double	getSubmissionDelay()	Gets the time (in seconds) that a DatacenterBroker will wait to submit the entity to a Datacenter, in order to request the creation of the object.
double	getTimeZone()	Gets the time zone offset, a value between [-12 and 12], in which the VM is expected to be placed (if there is a Datacenter with enough capacity available at that timezone).
double	getTotalCpuMipsRequested()	Gets the current requested total MIPS.
double	getTotalCpuMipsUtilization()	Gets the current total CPU MIPS utilization of all PEs from all cloudlets running on this VM.
double	getTotalCpuMipsUtilization(double time)	Gets the total CPU MIPS utilization of all PEs from all cloudlets running on this VM at the given time.
double	getTotalExecutionTime()	Gets the total time (in seconds) the Vm spent executing.
double	getTotalMipsCapacity()	Gets total MIPS capacity of all PEs of the machine.
String	getVmm()	Gets the Virtual Machine Monitor (VMM) that manages the VM.
boolean	hasStartedSomeCloudlet()	Checks if the VM has ever started some Cloudlet.
final boolean	isCreated()	Checks if the VM was created and placed inside the Host.
boolean	isDelayed()	Checks if this object has a submission delay or not
boolean	isFailed()	Checks if the Vm is failed or not.
boolean	isInMigration()	Checks if the VM is in migration process or not, that is, if it is migrating in or out of a Host.
boolean	isSuitableForCloudlet(Cloudlet cloudlet)	Checks if the VM has enough capacity to run a Cloudlet.
boolean	isWorking()	Checks if the Vm is working or failed.
void	notifyOnCreationFailureListeners(Datacenter failedDatacenter)	Notifies all registered listeners when the Vm fail in being placed for lack of a Host with enough resources in a specific Datacenter.
void	notifyOnHostAllocationListeners()	Notifies all registered listeners when a Host is allocated to the Vm.
void	notifyOnHostDeallocationListeners(Host deallocatedHost)	Notifies all registered listeners when the Vm is moved/removed from a Host.
void	notifyOnUpdateProcessingListeners()	Notifies all registered listeners when the processing of the Vm is updated in its Host.
Vm	removeExpectedFreePesNumber(long pesToRemove)	Adds a given number of expected free PEs to the total number of expected free PEs.
boolean	removeOnCreationFailureListener(EventListener<VmDatacenterEventInfo> listener)	Removes a listener from the onVmCreationFailureListener List.
boolean	removeOnHostAllocationListener(EventListener<VmHostEventInfo> listener)	Removes a listener from the onHostAllocationListener List.
boolean	removeOnHostDeallocationListener(EventListener<VmHostEventInfo> listener)	Removes a listener from the onHostDeallocationListener List.
boolean	removeOnMigrationFinishListener(EventListener<VmHostEventInfo> listener)	Removes a listener from the onMigrationFinishListener List.
boolean	removeOnMigrationStartListener(EventListener<VmHostEventInfo> listener)	Removes a listener from the onMigrationStartListener List.
boolean	removeOnUpdateProcessingListener(EventListener<VmHostEventInfo> listener)	Removes a listener from the onUpdateVmProcessingListener List.
void	setAllocatedMips(MipsShare allocatedMips)
final Vm	setBw(long bwCapacity)	Sets the bandwidth capacity (in Megabits/s)
final Vm	setBwVerticalScaling(VerticalVmScaling bwVerticalScaling)	Sets a VerticalVmScaling that will check if the Vm's Bandwidth is under or overloaded, based on some conditions defined by Predicates given to the VerticalVmScaling, and then request the Bandwidth up or down scaling.
final Vm	setCloudletScheduler(CloudletScheduler cloudletScheduler)	Sets the Cloudlet scheduler the Vm uses to schedule cloudlets execution.
void	setCloudletsToFailed()
void	setCreated(boolean created)	Changes the created status of the Vm inside the Host.
static void	setDefaultBwCapacity(long defaultCapacity)	Sets the Default Bandwidth capacity (in Mbps) for creating VMs.
static void	setDefaultRamCapacity(long defaultCapacity)	Sets the Default RAM capacity (in MB) for creating VMs.
static void	setDefaultStorageCapacity(long defaultCapacity)	Sets the Default Storage capacity (in MB) for creating VMs.
Vm	setDescription(String description)	Sets the VM description, which is an optional text which one can use to provide details about this of this VM.
void	setFailed(boolean failed)	Sets the status of VM to FAILED.
Vm	setFreePesNumber(long freePesNumber)	Sets the current number of free PEs.
void	setGroup(VmGroup group)
final Vm	setHorizontalScaling(HorizontalVmScaling horizontalScaling)	Sets a HorizontalVmScaling that will check if the Vm is overloaded, based on some conditions defined by a Predicate given to the HorizontalVmScaling, and then request the creation of new VMs to horizontally scale the Vm.
final void	setHost(Host host)	Sets the PM that hosts the VM.
final void	setInMigration(boolean migrating)	Defines if the VM is in migration process or not.
protected final void	setMips(double mips)	Sets the individual MIPS capacity of any VM's PE, considering that all PEs have the same capacity.
final Vm	setPeVerticalScaling(VerticalVmScaling peVerticalScaling)	Sets a VerticalVmScaling that will check if the Vm's Pe is under or overloaded, based on some conditions defined by Predicates given to the VerticalVmScaling, and then request the Pe up or down scaling.
final Vm	setRam(long ramCapacity)	Sets RAM capacity in Megabytes.
final Vm	setRamVerticalScaling(VerticalVmScaling ramVerticalScaling)	Sets a VerticalVmScaling that will check if the Vm's Ram is under or overloaded, based on some conditions defined by Predicates given to the VerticalVmScaling, and then request the RAM up or down scaling.
void	setRequestedMips(MipsShare requestedMips)
final Vm	setSize(long size)	Sets the storage size (capacity) of the VM image in Megabytes.
Vm	setStartTime(double startTime)	Sets the current machine startup time.
Vm	setStopTime(double stopTime)	Sets the time the VM was destroyed into the last Host it executed (in seconds).
final void	setSubmissionDelay(double submissionDelay)	Sets a relative time (in seconds), from current simulation time, that a DatacenterBroker will wait to submit the entity to a Datacenter, in order to request the creation of the object.
Vm	setTimeZone(double timeZone)	Sets the time zone offset, a value between [-12 and 12], in which the VM is expected to be placed (if there is a Datacenter with enough capacity available at that timezone).
protected final void	setVmm(String vmm)	Sets the Virtual Machine Monitor (VMM) that manages the VM.
String	toString()
void	updateMigrationFinishListeners(Host targetHost)	Notifies the listeners when the VM finishes migration to a target Host.
void	updateMigrationStartListeners(Host targetHost)	Notifies the listeners when the VM starts migration to a target Host.
double	updateProcessing(double currentTime, MipsShare mipsShare)	Updates the processing of cloudlets running on this VM.
double	updateProcessing(MipsShare mipsShare)	Updates the processing of cloudlets running on this VM at the current simulation time.

Methods inherited from class org.cloudbus.cloudsim.core.CustomerEntityAbstract

equals, getArrivedTime, getBroker, getCreationTime, getId, getLastTriedDatacenter, getSimulation, getUid, getWaitTime, hashCode, setArrivedTime, setBroker, setCreationTime, setCreationTime, setId, setLastTriedDatacenter

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.cloudbus.cloudsim.core.AbstractMachine

getIdleInterval, getSimulation, isIdle

Methods inherited from interface org.cloudbus.cloudsim.core.ChangeableId

setId

Methods inherited from interface org.cloudbus.cloudsim.core.CustomerEntity

getArrivedTime, getCreationTime, getLastTriedDatacenter, getSimulation, getWaitTime, setArrivedTime, setLastTriedDatacenter

Methods inherited from interface org.cloudbus.cloudsim.core.Identifiable

getId

Methods inherited from interface org.cloudbus.cloudsim.datacenters.TimeZoned

distance, validateTimeZone

Methods inherited from interface org.cloudbus.cloudsim.core.UniquelyIdentifiable

getUid

Methods inherited from interface org.cloudbus.cloudsim.vms.Vm

getBroker, getHostCpuUtilization, isIdleEnough, setBroker

Constructor Details

VmSimple

public VmSimple(Vm sourceVm)

A copy constructor that creates a VM based on the configuration of another one. The created VM will have the same MIPS capacity, number of PEs, BW, RAM and size of the given VM, but a default CloudletScheduler and no broker.

Parameters:

sourceVm - the VM to be cloned

See Also:

• VmSimple(double, long)

VmSimple

public VmSimple(double mipsCapacity,
 long numberOfPes)

Creates a Vm with 1024 MEGA of RAM, 100 Megabits/s of Bandwidth and 1024 MEGA of Storage Size. To change these values, use the respective setters. While the Vm is being instantiated, such values can be changed freely.

It is not defined an id for the Vm. The id is defined when the Vm is submitted to a DatacenterBroker.

NOTE: The Vm will use a CloudletSchedulerTimeShared by default. If you need to change that, just call setCloudletScheduler(CloudletScheduler).

Parameters:

mipsCapacity - the mips capacity of each Vm Pe

numberOfPes - amount of Pe (CPU cores)

See Also:

• setRam(long)
• setBw(long)
• setStorage(SimpleStorage)
• setDefaultRamCapacity(long)
• setDefaultBwCapacity(long)
• setDefaultStorageCapacity(long)

VmSimple

public VmSimple(double mipsCapacity,
 long numberOfPes,
 CloudletScheduler cloudletScheduler)

Creates a Vm with 1024 MEGA of RAM, 100 Megabits/s of Bandwidth and 1024 MEGA of Storage Size. To change these values, use the respective setters. While the Vm is being instantiated, such values can be changed freely.

It is not defined an id for the Vm. The id is defined when the Vm is submitted to a DatacenterBroker.

Parameters:

mipsCapacity - the mips capacity of each Vm Pe

numberOfPes - amount of Pe (CPU cores)

See Also:

• setRam(long)
• setBw(long)
• setStorage(SimpleStorage)
• setDefaultRamCapacity(long)
• setDefaultBwCapacity(long)
• setDefaultStorageCapacity(long)

VmSimple

public VmSimple(long id,
 double mipsCapacity,
 long numberOfPes)

Creates a Vm with 1024 MEGA of RAM, 100 Megabits/s of Bandwidth and 1024 MEGA of Storage Size.

To change these values, use the respective setters. While the Vm is being instantiated, such values can be changed freely.

It receives the amount of MIPS as a double value but converts it internally to a long. The method is just provided as a handy-way to create a Vm using a double value for MIPS that usually is generated from some computations.

NOTE: The Vm will use a CloudletSchedulerTimeShared by default. If you need to change that, just call setCloudletScheduler(CloudletScheduler).

Parameters:

id - unique ID of the VM

mipsCapacity - the mips capacity of each Vm Pe

numberOfPes - amount of Pe (CPU cores)

See Also:

• setRam(long)
• setBw(long)
• setStorage(SimpleStorage)
• setDefaultRamCapacity(long)
• setDefaultBwCapacity(long)
• setDefaultStorageCapacity(long)

VmSimple

public VmSimple(long id,
 long mipsCapacity,
 long numberOfPes)

Creates a Vm with 1024 MEGA of RAM, 100 Megabits/s of Bandwidth and 1024 MEGA of Storage Size.

To change these values, use the respective setters. While the Vm is being instantiated, such values can be changed freely.

NOTE: The Vm will use a CloudletSchedulerTimeShared by default. If you need to change that, just call setCloudletScheduler(CloudletScheduler).

Parameters:

id - unique ID of the VM

mipsCapacity - the mips capacity of each Vm Pe

numberOfPes - amount of Pe (CPU cores)

See Also:

• setRam(long)
• setBw(long)
• setStorage(SimpleStorage)
• setDefaultRamCapacity(long)
• setDefaultBwCapacity(long)
• setDefaultStorageCapacity(long)

Method Details

updateProcessing

public double updateProcessing(MipsShare mipsShare)

Description copied from interface: Vm

Updates the processing of cloudlets running on this VM at the current simulation time.

Specified by:

updateProcessing in interface Vm

Parameters:

mipsShare - list with MIPS share of each Pe available to the scheduler

Returns:

the predicted completion time of the earliest finishing cloudlet (which is a relative delay from the current simulation time), or Double.MAX_VALUE if there is no next Cloudlet to execute

updateProcessing

public double updateProcessing(double currentTime,
 MipsShare mipsShare)

Description copied from interface: Vm

Updates the processing of cloudlets running on this VM.

Specified by:

updateProcessing in interface Vm

Parameters:

currentTime - current simulation time

mipsShare - list with MIPS share of each Pe available to the scheduler

Returns:

the predicted completion time of the earliest finishing cloudlet (which is a relative delay from the current simulation time), or Double.MAX_VALUE if there is no next Cloudlet to execute

getFreePesNumber

public long getFreePesNumber()

Description copied from interface: Vm

Gets the current number of free PEs.

Specified by:

getFreePesNumber in interface Vm

Returns:

the current free pes number

setFreePesNumber

public Vm setFreePesNumber(long freePesNumber)

Sets the current number of free PEs.

Returns:

the new free pes number

getExpectedFreePesNumber

public long getExpectedFreePesNumber()

Description copied from interface: Vm

Gets the expected free pes number before the VM starts executing. This value is updated as cloudlets are assigned to VMs but not submitted to the broker yet for running.

Specified by:

getExpectedFreePesNumber in interface Vm

Returns:

the expected free pes number

addExpectedFreePesNumber

public Vm addExpectedFreePesNumber(long pesToAdd)

Adds a given number of expected free PEs to the total number of expected free PEs. This value is updated as cloudlets are assigned to VMs but not submitted to the broker for running yet.

Parameters:

pesToAdd - the number of expected free PEs to add

removeExpectedFreePesNumber

public Vm removeExpectedFreePesNumber(long pesToRemove)

Adds a given number of expected free PEs to the total number of expected free PEs. This value is updated as cloudlets are assigned to VMs but not submitted to the broker for running yet.

Parameters:

pesToRemove - the number of expected free PEs to remove

getCpuPercentUtilization

public double getCpuPercentUtilization()

Description copied from interface: Vm

Gets the current percentage of CPU capacity (MIPS %) used by all Cloudlets running on this VM. It represents the actual percentage of MIPS allocated.

Specified by:

getCpuPercentUtilization in interface Vm

Returns:

total CPU utilization percentage (between [0 and 1]) for the current time

getCpuPercentUtilization

public double getCpuPercentUtilization(double time)

Description copied from interface: Vm

Gets the percentage of CPU capacity (MIPS %) used by all Cloudlets running on this VM at the given time. It represents the actual percentage of MIPS allocated for that time.

Specified by:

getCpuPercentUtilization in interface Vm

Parameters:

time - the time to get the CPU utilization percentage

Returns:

total CPU utilization percentage (between [0 and 1])

getCpuPercentRequested

public double getCpuPercentRequested()

Description copied from interface: Vm

Gets the percentage of CPU capacity (MIPS %) requested by all Cloudlets running on this VM at the current time. It represents the percentage of MIPS requested, which may be higher than the percentage used (allocated) due to lack of capacity.

Specified by:

getCpuPercentRequested in interface Vm

Returns:

the percentage (between [0 and 1]) of CPU capacity requested

See Also:

• Vm.getCpuPercentRequested(double)
• Vm.getCpuPercentUtilization(double)

getCpuPercentRequested

public double getCpuPercentRequested(double time)

Description copied from interface: Vm

Gets the percentage of CPU capacity (MIPS %) requested by all Cloudlets running on this VM at the given time. It represents the percentage of MIPS requested for that time, which may be higher than the percentage used (allocated) due to lack of capacity.

Specified by:

getCpuPercentRequested in interface Vm

Parameters:

time - the time to get the CPU requested percentage

Returns:

the percentage (between [0 and 1]) of CPU capacity requested for the current time

See Also:

• Vm.getCpuPercentRequested()
• Vm.getCpuPercentUtilization()

getHostCpuUtilization

public double getHostCpuUtilization(double time)

Description copied from interface: Vm

Computes the relative percentage of the CPU the VM is using from the Host's total MIPS Capacity for the current simulation time. If the capacity is 1000 MIPS and the VM is using 250 MIPS, it's equivalent to 25% of the Host's capacity.

Specified by:

getHostCpuUtilization in interface Vm

Parameters:

time - the time to get the relative VM CPU utilization

Returns:

the relative VM CPU usage percent (from 0 to 1)

getExpectedHostCpuUtilization

public double getExpectedHostCpuUtilization(double vmCpuUtilizationPercent)

Description copied from interface: Vm

Computes what would be the relative percentage of the CPU the VM is using from a PM's total MIPS Capacity, considering that the VM 's CPU load is at a given percentage.

Specified by:

getExpectedHostCpuUtilization in interface Vm

Parameters:

vmCpuUtilizationPercent - the VM's CPU utilization percentage for a given time

Returns:

the relative VM CPU usage percent (from 0 to 1)

getHostRamUtilization

public double getHostRamUtilization()

Description copied from interface: Vm

Computes the relative percentage of the RAM the VM is using from the Host's total Capacity for the current simulation time.

Specified by:

getHostRamUtilization in interface Vm

Returns:

the relative VM RAM usage percent (from 0 to 1)

getHostBwUtilization

public double getHostBwUtilization()

Description copied from interface: Vm

Computes the relative percentage of the Bandwidth the VM is using from the Host's total Capacity for the current simulation time.

Specified by:

getHostBwUtilization in interface Vm

Returns:

the relative VM BW usage percent (from 0 to 1)

getTotalCpuMipsUtilization

public double getTotalCpuMipsUtilization()

Description copied from interface: Vm

Gets the current total CPU MIPS utilization of all PEs from all cloudlets running on this VM.

Specified by:

getTotalCpuMipsUtilization in interface Vm

Returns:

total CPU utilization in MIPS

See Also:

• Vm.getCpuPercentUtilization(double)

getTotalCpuMipsUtilization

public double getTotalCpuMipsUtilization(double time)

Description copied from interface: Vm

Gets the total CPU MIPS utilization of all PEs from all cloudlets running on this VM at the given time.

Specified by:

getTotalCpuMipsUtilization in interface Vm

Parameters:

time - the time to get the utilization

Returns:

total CPU utilization in MIPS

See Also:

• Vm.getCpuPercentUtilization(double)

getTotalCpuMipsRequested

public double getTotalCpuMipsRequested()

Description copied from interface: Vm

Gets the current requested total MIPS. It is the sum of MIPS capacity requested for every virtual Pe.

Specified by:

getTotalCpuMipsRequested in interface Vm

Returns:

the current requested total MIPS

See Also:

• Vm.getCurrentRequestedMips()

getCurrentRequestedMips

public MipsShare getCurrentRequestedMips()

Description copied from interface: Vm

Gets a copy list of current requested MIPS of each virtual Pe, avoiding the original list to be changed.

Specified by:

getCurrentRequestedMips in interface Vm

Returns:

the current requested MIPS of each Pe

getCurrentRequestedBw

public long getCurrentRequestedBw()

Description copied from interface: Vm

Gets the current requested bw.

Specified by:

getCurrentRequestedBw in interface Vm

Returns:

the current requested bw

getTotalMipsCapacity

public double getTotalMipsCapacity()

Description copied from interface: AbstractMachine

Gets total MIPS capacity of all PEs of the machine.

Specified by:

getTotalMipsCapacity in interface AbstractMachine<Resource>

Returns:

the total MIPS of all PEs

getCurrentRequestedRam

public long getCurrentRequestedRam()

Description copied from interface: Vm

Gets the current requested ram (in Megabytes).

Specified by:

getCurrentRequestedRam in interface Vm

Returns:

getStartTime

public double getStartTime()

Description copied from interface: AbstractMachine

Gets the last time the machine was started up (in seconds). The value -1 means it was not started yet.

Specified by:

getStartTime in interface AbstractMachine<Resource>

Returns:

setStartTime

public Vm setStartTime(double startTime)

Description copied from interface: AbstractMachine

Sets the current machine startup time. The value -1 means it was not started yet.

Specified by:

setStartTime in interface AbstractMachine<Resource>

Parameters:

startTime - the start time to set (in seconds)

Returns:

getStopTime

public double getStopTime()

Description copied from interface: Vm

Gets the time the VM was destroyed into the last Host it executed (in seconds). The value -1 means the VM has not stopped or has not even started yet.

Specified by:

getStopTime in interface Vm

Returns:

See Also:

• Vm.isCreated()

setStopTime

public Vm setStopTime(double stopTime)

Description copied from interface: Vm

Sets the time the VM was destroyed into the last Host it executed (in seconds). The value -1 means the VM has not stopped or has not even started yet.

Specified by:

setStopTime in interface Vm

Parameters:

stopTime - the stop time to set (in seconds)

Returns:

See Also:

• Vm.isCreated()

getLastBusyTime

public double getLastBusyTime()

Description copied from interface: AbstractMachine

Gets the last time the Machine was running some process.

Specified by:

getLastBusyTime in interface AbstractMachine<Resource>

Returns:

the last busy time (in seconds)

hasStartedSomeCloudlet

public boolean hasStartedSomeCloudlet()

Checks if the VM has ever started some Cloudlet.

Returns:

getTotalExecutionTime

public double getTotalExecutionTime()

Description copied from interface: Vm

Gets the total time (in seconds) the Vm spent executing. It considers the entire VM execution even if in different Hosts it has possibly migrated.

Specified by:

getTotalExecutionTime in interface Vm

Returns:

the VM total execution time if the VM has stopped, the time executed so far if the VM is running yet, or 0 if it hasn't started.

getMips

public double getMips()

Description copied from interface: AbstractMachine

Gets the individual MIPS capacity of any machine's Pe, considering that all PEs have the same capacity.

Specified by:

getMips in interface AbstractMachine<Resource>

Returns:

the MIPS capacity of a single Pe

setMips

protected final void setMips(double mips)

Sets the individual MIPS capacity of any VM's PE, considering that all PEs have the same capacity.

Parameters:

mips - the new mips for every VM's PE

getNumberOfPes

public long getNumberOfPes()

Description copied from interface: AbstractMachine

Gets the overall number of Pes the machine has, that include PEs of all statuses, including failed PEs.

Specified by:

getNumberOfPes in interface AbstractMachine<Resource>

Returns:

the machine's number of PEs

getProcessor

public Processor getProcessor()

Description copied from interface: Vm

Gets the Processor of this VM. It is its Virtual CPU which may be compounded of multiple Pes.

Specified by:

getProcessor in interface Vm

Returns:

getRam

public ResourceManageable getRam()

Description copied from interface: Vm

Gets the RAM resource assigned to the Vm, allowing to check its capacity (in Megabytes) and usage.

Specified by:

getRam in interface AbstractMachine<Resource>

Specified by:

getRam in interface Vm

Returns:

the RAM resource

setRam

public final Vm setRam(long ramCapacity)

Description copied from interface: Vm

Sets RAM capacity in Megabytes.

Specified by:

setRam in interface Vm

Parameters:

ramCapacity - new RAM capacity

Returns:

getBw

public ResourceManageable getBw()

Description copied from interface: Vm

Gets bandwidth resource (in Megabits/s) assigned to the Vm, allowing to check its capacity and usage.

Specified by:

getBw in interface AbstractMachine<Resource>

Specified by:

getBw in interface Vm

Returns:

bandwidth resource.

setBw

public final Vm setBw(long bwCapacity)

Description copied from interface: Vm

Sets the bandwidth capacity (in Megabits/s)

Specified by:

setBw in interface Vm

Parameters:

bwCapacity - new BW capacity (in Megabits/s)

Returns:

getStorage

public Resource getStorage()

Description copied from interface: Vm

Gets the storage device of the VM, which represents the VM image, allowing to check its capacity (in Megabytes) and usage.

Specified by:

getStorage in interface AbstractMachine<Resource>

Specified by:

getStorage in interface Vm

Returns:

the storage resource

setSize

public final Vm setSize(long size)

Description copied from interface: Vm

Sets the storage size (capacity) of the VM image in Megabytes.

Specified by:

setSize in interface Vm

Parameters:

size - new storage size

Returns:

getVmm

public String getVmm()

Description copied from interface: Vm

Gets the Virtual Machine Monitor (VMM) that manages the VM.

Specified by:

getVmm in interface Vm

Returns:

VMM

setVmm

protected final void setVmm(String vmm)

Sets the Virtual Machine Monitor (VMM) that manages the VM.

Parameters:

vmm - the new VMM

setHost

public final void setHost(Host host)

Description copied from interface: Vm

Sets the PM that hosts the VM.

Specified by:

setHost in interface Vm

Parameters:

host - Host to run the VM

getHost

public Host getHost()

Description copied from interface: Vm

Gets the Host where the Vm is or will be placed. To know if the Vm was already created inside this Host, call the Vm.isCreated() method.

Specified by:

getHost in interface Vm

Returns:

the Host

See Also:

• Vm.isCreated()

getCloudletScheduler

public CloudletScheduler getCloudletScheduler()

Description copied from interface: Vm

Gets the Cloudlet scheduler the VM uses to schedule cloudlets execution.

Specified by:

getCloudletScheduler in interface Vm

Returns:

the cloudlet scheduler

setCloudletScheduler

public final Vm setCloudletScheduler(CloudletScheduler cloudletScheduler)

Description copied from interface: Vm

Sets the Cloudlet scheduler the Vm uses to schedule cloudlets execution. It also sets the Vm itself to the given scheduler.

Specified by:

setCloudletScheduler in interface Vm

Parameters:

cloudletScheduler - the cloudlet scheduler to set

Returns:

isInMigration

public boolean isInMigration()

Description copied from interface: Vm

Checks if the VM is in migration process or not, that is, if it is migrating in or out of a Host.

Specified by:

isInMigration in interface Vm

Returns:

setInMigration

public final void setInMigration(boolean migrating)

Description copied from interface: Vm

Defines if the VM is in migration process or not.

Specified by:

setInMigration in interface Vm

Parameters:

migrating - true to indicate the VM is migrating into a Host, false otherwise

updateMigrationStartListeners

public void updateMigrationStartListeners(Host targetHost)

Notifies the listeners when the VM starts migration to a target Host.

Parameters:

targetHost - the Host the VM is migrating to

updateMigrationFinishListeners

public void updateMigrationFinishListeners(Host targetHost)

Notifies the listeners when the VM finishes migration to a target Host.

Parameters:

targetHost - the Host the VM has just migrated to

isCreated

public final boolean isCreated()

Description copied from interface: Vm

Checks if the VM was created and placed inside the Host. If so, resources required by the Vm already were provisioned.

Specified by:

isCreated in interface Vm

Returns:

true, if it was created inside the Host, false otherwise

isSuitableForCloudlet

public boolean isSuitableForCloudlet(Cloudlet cloudlet)

Description copied from interface: Vm

Checks if the VM has enough capacity to run a Cloudlet.

Specified by:

isSuitableForCloudlet in interface Vm

Parameters:

cloudlet - the candidate Cloudlet to run inside the VM

Returns:

true if the VM can run the Cloudlet, false otherwise

setCreated

public void setCreated(boolean created)

Description copied from interface: Vm

Changes the created status of the Vm inside the Host.

Specified by:

setCreated in interface Vm

Parameters:

created - true to indicate the VM was created inside the Host; false otherwise

See Also:

• Vm.isCreated()

getStateHistory

public List<VmStateHistoryEntry> getStateHistory()

Description copied from interface: Vm

Gets a read-only list with the history of requests and allocation of MIPS for this VM. The VM state history is just collected and stored if the Host is storing such a data.

Specified by:

getStateHistory in interface Vm

Returns:

the state history

See Also:

• Host.enableStateHistory()

addStateHistoryEntry

public void addStateHistoryEntry(VmStateHistoryEntry entry)

Description copied from interface: Vm

Adds a VM state history entry.

Specified by:

addStateHistoryEntry in interface Vm

Parameters:

entry - the data about the state of the VM at given time

getResources

public List<ResourceManageable> getResources()

Description copied from interface: Resourceful

Gets a read-only list of resources the machine has.

Specified by:

getResources in interface Resourceful

Returns:

a read-only list of resources

See Also:

• Resourceful.getResource(Class)

getResource

public ResourceManageable getResource(Class<? extends ResourceManageable> resourceClass)

Description copied from interface: Resourceful

Gets a given AbstractMachine Resource, such as Ram or Bandwidth, from the List of machine resources.

Specified by:

getResource in interface Resourceful

Parameters:

resourceClass - the class of resource to get

Returns:

the Resource corresponding to the given class

addOnHostAllocationListener

public Vm addOnHostAllocationListener(EventListener<VmHostEventInfo> listener)

Description copied from interface: Vm

Adds a listener object that will be notified when a Host is allocated to the Vm, that is, when the Vm is placed into a given Host. That happens when the VM is placed for the first time into a Host or when it's migrated to another Host.

Specified by:

addOnHostAllocationListener in interface Vm

Parameters:

listener - the listener to add

Returns:

See Also:

• Vm.addOnMigrationStartListener(EventListener)

addOnMigrationStartListener

public Vm addOnMigrationStartListener(EventListener<VmHostEventInfo> listener)

Description copied from interface: Vm

Adds a listener object that will be notified when a VM starts migrating to a target Host. When the listener is notified, it receives a VmHostEventInfo object informing the target Host where the VM is being migrated.

Specified by:

addOnMigrationStartListener in interface Vm

Parameters:

listener - the listener to add

Returns:

See Also:

• Vm.addOnHostAllocationListener(EventListener)

addOnMigrationFinishListener

public Vm addOnMigrationFinishListener(EventListener<VmHostEventInfo> listener)

Description copied from interface: Vm

Adds a listener object that will be notified when a VM finishes migrating to a target Host. When the listener is notified, it receives a VmHostEventInfo object informing the target Host where the VM has just migrated.

Specified by:

addOnMigrationFinishListener in interface Vm

Parameters:

listener - the listener to add

Returns:

addOnHostDeallocationListener

public Vm addOnHostDeallocationListener(EventListener<VmHostEventInfo> listener)

Description copied from interface: Vm

Adds a listener object that will be notified when the Vm is moved/removed from a Host.

Specified by:

addOnHostDeallocationListener in interface Vm

Parameters:

listener - the listener to add

Returns:

addOnCreationFailureListener

public Vm addOnCreationFailureListener(EventListener<VmDatacenterEventInfo> listener)

Description copied from interface: Vm

Adds a listener object that will be notified when the Vm fail in being placed for lack of a Host with enough resources in a specific Datacenter.

The DatacenterBroker is accountable for receiving the notification from the Datacenter and notifying the Listeners.

Specified by:

addOnCreationFailureListener in interface Vm

Parameters:

listener - the listener to add

Returns:

See Also:

• Vm.updateProcessing(double, MipsShare)

addOnUpdateProcessingListener

public Vm addOnUpdateProcessingListener(EventListener<VmHostEventInfo> listener)

Description copied from interface: Vm

Adds a listener object that will be notified every time when the processing of the Vm is updated in its Host.

Specified by:

addOnUpdateProcessingListener in interface Vm

Parameters:

listener - the listener to add

Returns:

See Also:

• Vm.updateProcessing(double, MipsShare)

removeOnCreationFailureListener

public boolean removeOnCreationFailureListener(EventListener<VmDatacenterEventInfo> listener)

Description copied from interface: Vm

Removes a listener from the onVmCreationFailureListener List.

Specified by:

removeOnCreationFailureListener in interface Vm

Parameters:

listener - the listener to remove

Returns:

true if the listener was found and removed, false otherwise

removeOnUpdateProcessingListener

public boolean removeOnUpdateProcessingListener(EventListener<VmHostEventInfo> listener)

Description copied from interface: Vm

Removes a listener from the onUpdateVmProcessingListener List.

Specified by:

removeOnUpdateProcessingListener in interface Vm

Parameters:

listener - the listener to remove

Returns:

true if the listener was found and removed, false otherwise

removeOnHostAllocationListener

public boolean removeOnHostAllocationListener(EventListener<VmHostEventInfo> listener)

Description copied from interface: Vm

Removes a listener from the onHostAllocationListener List.

Specified by:

removeOnHostAllocationListener in interface Vm

Parameters:

listener - the listener to remove

Returns:

true if the listener was found and removed, false otherwise

removeOnHostDeallocationListener

public boolean removeOnHostDeallocationListener(EventListener<VmHostEventInfo> listener)

Description copied from interface: Vm

Removes a listener from the onHostDeallocationListener List.

Specified by:

removeOnHostDeallocationListener in interface Vm

Parameters:

listener - the listener to remove

Returns:

true if the listener was found and removed, false otherwise

toString

public String toString()

Overrides:

toString in class Object

compareTo

public int compareTo(Vm obj)

Compare this Vm with another one based on getTotalMipsCapacity().

Specified by:

compareTo in interface Comparable<Vm>

Parameters:

obj - the Vm to compare to

Returns:

setFailed

public void setFailed(boolean failed)

Description copied from interface: Vm

Sets the status of VM to FAILED.

Specified by:

setFailed in interface Vm

Parameters:

failed - true to indicate that the VM is failed, false to indicate it is working

setCloudletsToFailed

public void setCloudletsToFailed()

isFailed

public boolean isFailed()

Description copied from interface: Vm

Checks if the Vm is failed or not.

Specified by:

isFailed in interface Vm

Returns:

See Also:

• Vm.isWorking()

isWorking

public boolean isWorking()

Description copied from interface: Vm

Checks if the Vm is working or failed.

Specified by:

isWorking in interface Vm

Returns:

See Also:

• Vm.isFailed()

getSubmissionDelay

public double getSubmissionDelay()

Description copied from interface: Delayable

Gets the time (in seconds) that a DatacenterBroker will wait to submit the entity to a Datacenter, in order to request the creation of the object. This is a relative time from the current simulation time.

Specified by:

getSubmissionDelay in interface Delayable

Returns:

the submission delay (in seconds)

setSubmissionDelay

public final void setSubmissionDelay(double submissionDelay)

Description copied from interface: Delayable

Sets a relative time (in seconds), from current simulation time, that a DatacenterBroker will wait to submit the entity to a Datacenter, in order to request the creation of the object. This is a relative time from the current simulation time.

Specified by:

setSubmissionDelay in interface Delayable

Parameters:

submissionDelay - the amount of seconds from the current simulation time that the object will wait to be submitted

isDelayed

public boolean isDelayed()

Description copied from interface: Delayable

Checks if this object has a submission delay or not

Specified by:

isDelayed in interface Delayable

Returns:

notifyOnHostAllocationListeners

public void notifyOnHostAllocationListeners()

Description copied from interface: Vm

Notifies all registered listeners when a Host is allocated to the Vm.

This method is used just internally and must not be called directly.

Specified by:

notifyOnHostAllocationListeners in interface Vm

notifyOnHostDeallocationListeners

public void notifyOnHostDeallocationListeners(Host deallocatedHost)

Description copied from interface: Vm

Notifies all registered listeners when the Vm is moved/removed from a Host.

This method is used just internally and must not be called directly.

Specified by:

notifyOnHostDeallocationListeners in interface Vm

Parameters:

deallocatedHost - the Host the Vm was moved/removed from

notifyOnUpdateProcessingListeners

public void notifyOnUpdateProcessingListeners()

Notifies all registered listeners when the processing of the Vm is updated in its Host.

notifyOnCreationFailureListeners

public void notifyOnCreationFailureListeners(Datacenter failedDatacenter)

Description copied from interface: Vm

Notifies all registered listeners when the Vm fail in being placed for lack of a Host with enough resources in a specific Datacenter.

This method is used just internally and must not be called directly.

Specified by:

notifyOnCreationFailureListeners in interface Vm

Parameters:

failedDatacenter - the Datacenter where the VM creation failed

removeOnMigrationStartListener

public boolean removeOnMigrationStartListener(EventListener<VmHostEventInfo> listener)

Description copied from interface: Vm

Removes a listener from the onMigrationStartListener List.

Specified by:

removeOnMigrationStartListener in interface Vm

Parameters:

listener - the listener to remove

Returns:

true if the listener was found and removed, false otherwise

removeOnMigrationFinishListener

public boolean removeOnMigrationFinishListener(EventListener<VmHostEventInfo> listener)

Description copied from interface: Vm

Removes a listener from the onMigrationFinishListener List.

Specified by:

removeOnMigrationFinishListener in interface Vm

Parameters:

listener - the listener to remove

Returns:

true if the listener was found and removed, false otherwise

getHorizontalScaling

public HorizontalVmScaling getHorizontalScaling()

Description copied from interface: Vm

Gets a HorizontalVmScaling that will check if the Vm is overloaded, based on some conditions defined by a Predicate given to the HorizontalVmScaling, and then request the creation of new VMs to horizontally scale the Vm.

If no HorizontalVmScaling is set, the Broker will not dynamically create VMs to balance arrived Cloudlets.

Specified by:

getHorizontalScaling in interface Vm

Returns:

setHorizontalScaling

public final Vm setHorizontalScaling(HorizontalVmScaling horizontalScaling)
                              throws IllegalArgumentException

Description copied from interface: Vm

Sets a HorizontalVmScaling that will check if the Vm is overloaded, based on some conditions defined by a Predicate given to the HorizontalVmScaling, and then request the creation of new VMs to horizontally scale the Vm.

Specified by:

setHorizontalScaling in interface Vm

Parameters:

horizontalScaling - the HorizontalVmScaling to set

Returns:

Throws:

IllegalArgumentException - if the given VmScaling is already linked to a Vm. Each VM must have its own HorizontalVmScaling object or none at all.

setRamVerticalScaling

public final Vm setRamVerticalScaling(VerticalVmScaling ramVerticalScaling)
                               throws IllegalArgumentException

Description copied from interface: Vm

Sets a VerticalVmScaling that will check if the Vm's Ram is under or overloaded, based on some conditions defined by Predicates given to the VerticalVmScaling, and then request the RAM up or down scaling.

Specified by:

setRamVerticalScaling in interface Vm

Parameters:

ramVerticalScaling - the VerticalVmScaling to set

Returns:

Throws:

IllegalArgumentException - if the given VmScaling is already linked to a Vm. Each VM must have its own VerticalVmScaling objects or none at all.

setBwVerticalScaling

public final Vm setBwVerticalScaling(VerticalVmScaling bwVerticalScaling)
                              throws IllegalArgumentException

Description copied from interface: Vm

Sets a VerticalVmScaling that will check if the Vm's Bandwidth is under or overloaded, based on some conditions defined by Predicates given to the VerticalVmScaling, and then request the Bandwidth up or down scaling.

Specified by:

setBwVerticalScaling in interface Vm

Parameters:

bwVerticalScaling - the VerticalVmScaling to set

Returns:

Throws:

IllegalArgumentException - if the given VmScaling is already linked to a Vm. Each VM must have its own VerticalVmScaling objects or none at all.

setPeVerticalScaling

public final Vm setPeVerticalScaling(VerticalVmScaling peVerticalScaling)
                              throws IllegalArgumentException

Description copied from interface: Vm

Sets a VerticalVmScaling that will check if the Vm's Pe is under or overloaded, based on some conditions defined by Predicates given to the VerticalVmScaling, and then request the Pe up or down scaling.

The Pe scaling is performed by adding or removing PEs to/from the VM. Added PEs will have the same MIPS than the already existing ones.

Specified by:

setPeVerticalScaling in interface Vm

Parameters:

peVerticalScaling - the VerticalVmScaling to set

Returns:

Throws:

IllegalArgumentException - if the given VmScaling is already linked to a Vm. Each VM must have its own VerticalVmScaling objects or none at all.

getRamVerticalScaling

public VerticalVmScaling getRamVerticalScaling()

Description copied from interface: Vm

Gets a VerticalVmScaling that will check if the Vm's RAM is overloaded, based on some conditions defined by a Predicate given to the VerticalVmScaling, and then request the RAM up scaling.

Specified by:

getRamVerticalScaling in interface Vm

Returns:

getBwVerticalScaling

public VerticalVmScaling getBwVerticalScaling()

Description copied from interface: Vm

Gets a VerticalVmScaling that will check if the Vm's Bandwidth is overloaded, based on some conditions defined by a Predicate given to the VerticalVmScaling, and then request the BW up scaling.

Specified by:

getBwVerticalScaling in interface Vm

Returns:

getPeVerticalScaling

public VerticalVmScaling getPeVerticalScaling()

Description copied from interface: Vm

Gets a VerticalVmScaling that will check if the Vm's Pe is overloaded, based on some conditions defined by a Predicate given to the VerticalVmScaling, and then request the RAM up scaling.

Specified by:

getPeVerticalScaling in interface Vm

Returns:

getDescription

public String getDescription()

Description copied from interface: Vm

Gets the Vm description, which is an optional text which one can use to provide details about this of this VM.

Specified by:

getDescription in interface Vm

Returns:

setDescription

public Vm setDescription(String description)

Description copied from interface: Vm

Sets the VM description, which is an optional text which one can use to provide details about this of this VM.

Specified by:

setDescription in interface Vm

Parameters:

description - the Vm description to set

Returns:

getGroup

public VmGroup getGroup()

Description copied from interface: Vm

Gets the group this Vm belongs to

Specified by:

getGroup in interface Vm

Returns:

the VmGroup or NULL if the VM doesn't belong to a group

setGroup

public void setGroup(VmGroup group)

getCpuUtilizationStats

public VmResourceStats getCpuUtilizationStats()

Description copied from interface: ResourceStatsComputer

Gets machine's CPU utilization percentage statistics (between [0 and 1]).

WARNING: You need to enable the data collection and computation of statistics by calling ResourceStatsComputer.enableUtilizationStats().

The time interval in which utilization is collected is defined by the Datacenter.getSchedulingInterval().

Specified by:

getCpuUtilizationStats in interface ResourceStatsComputer<VmResourceStats>

Returns:

enableUtilizationStats

public void enableUtilizationStats()

Description copied from interface: Vm

Enables the data collection and computation of utilization statistics. If you enable the statistics for the Host where the VM is placed, that will automatically enable the statistics for every VM on that Host.

Specified by:

enableUtilizationStats in interface ResourceStatsComputer<VmResourceStats>

Specified by:

enableUtilizationStats in interface Vm

See Also:

• ResourceStatsComputer.getCpuUtilizationStats()

getDefaultRamCapacity

public static long getDefaultRamCapacity()

Gets the Default RAM capacity (in MB) for creating VMs. This value is used when the RAM capacity is not given in a VM constructor.

setDefaultRamCapacity

public static void setDefaultRamCapacity(long defaultCapacity)

Sets the Default RAM capacity (in MB) for creating VMs. This value is used when the RAM capacity is not given in a VM constructor.

getDefaultBwCapacity

public static long getDefaultBwCapacity()

Gets the Default Bandwidth capacity (in Mbps) for creating VMs. This value is used when the BW capacity is not given in a VM constructor.

setDefaultBwCapacity

public static void setDefaultBwCapacity(long defaultCapacity)

Sets the Default Bandwidth capacity (in Mbps) for creating VMs. This value is used when the BW capacity is not given in a VM constructor.

getDefaultStorageCapacity

public static long getDefaultStorageCapacity()

Gets the Default Storage capacity (in MB) for creating VMs. This value is used when the Storage capacity is not given in a VM constructor.

setDefaultStorageCapacity

public static void setDefaultStorageCapacity(long defaultCapacity)

Sets the Default Storage capacity (in MB) for creating VMs. This value is used when the Storage capacity is not given in a VM constructor.

getTimeZone

public double getTimeZone()

Description copied from interface: Vm

Gets the time zone offset, a value between [-12 and 12], in which the VM is expected to be placed (if there is a Datacenter with enough capacity available at that timezone).

To know the actual timezone where the VM is placed, check the timezone of the Datacenter of the Host where this is VM placed.

Specified by:

getTimeZone in interface TimeZoned

Specified by:

getTimeZone in interface Vm

Returns:

the expected timezone to place this VM

setTimeZone

public Vm setTimeZone(double timeZone)

Description copied from interface: Vm

Sets the time zone offset, a value between [-12 and 12], in which the VM is expected to be placed (if there is a Datacenter with enough capacity available at that timezone).

Specified by:

setTimeZone in interface TimeZoned

Specified by:

setTimeZone in interface Vm

Parameters:

timeZone - the new expected time zone offset

Returns:

getAllocatedMips

public MipsShare getAllocatedMips()

setAllocatedMips

public void setAllocatedMips(MipsShare allocatedMips)

getRequestedMips

public MipsShare getRequestedMips()

setRequestedMips

public void setRequestedMips(MipsShare requestedMips)