Package org.cloudbus.cloudsim.provisioners

Interface PeProvisioner

All Superinterfaces:
ResourceProvisioner
All Known Implementing Classes:
PeProvisionerSimple
public interface PeProvisioner extends ResourceProvisioner
An interface that represents the provisioning policy used by a host to provide virtual PEs to its virtual machines. It gets a physical PE and manage it in order to provide this PE as virtual PEs for VMs. In that way, a given PE might be shared among different VMs.
Since:
CloudSim Plus 1.1
Author:
Manoel Campos da Silva Filho

  • Field Details

    • NULL

      static final PeProvisioner NULL
      An attribute that implements the Null Object Design Pattern for PeProvisioner objects.

  • Method Details

    • setPe

      void setPe(Pe pe)
      Sets the Pe that this provisioner will manage.
      Parameters:
      pe - the Pe to set

    • allocateResourceForVm

      boolean allocateResourceForVm(Vm vm, long mipsCapacity)
      Allocates an amount of MIPS from the physical Pe to a new virtual PE for a given VM. The virtual PE to be added will use the total or partial MIPS capacity of the physical PE.
      Specified by:
      allocateResourceForVm in interface ResourceProvisioner
      Parameters:
      vm - the virtual machine for which the new virtual PE is being allocated
      mipsCapacity - the MIPS to be allocated to the virtual PE of the given VM
      Returns:
      $true if the virtual PE could be allocated; $false otherwise

    • getAllocatedResourceForVm

      long getAllocatedResourceForVm(Vm vm)
      Gets the amount of allocated MIPS from the physical Pe to a virtual PE of a VM.
      Specified by:
      getAllocatedResourceForVm in interface ResourceProvisioner
      Parameters:
      vm - the virtual machine to get the allocated virtual Pe MIPS
      Returns:
      the allocated virtual Pe MIPS

    • deallocateResourceForVm

      long deallocateResourceForVm(Vm vm)
      Releases the virtual Pe allocated to a given VM.
      Specified by:
      deallocateResourceForVm in interface ResourceProvisioner
      Parameters:
      vm - the vm to release the virtual Pe
      Returns:

    • getTotalAllocatedResource

      long getTotalAllocatedResource()
      Gets the total allocated MIPS from the physical Pe.
      Specified by:
      getTotalAllocatedResource in interface ResourceProvisioner
      Returns:
      the total allocated MIPS

    • getUtilization

      double getUtilization()
      Gets the utilization percentage of the Pe in scale from 0 to 1.
      Returns:
      the utilization percentage from 0 to 1