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### How to calculate the Expected Execution Time of a VM?

• The formula for calculating the Expected Execution Time of VM is:

EETVM = (CLength/pevm*mipsvm)+(CinSize/bandwidthvm)
pevm = Pe count of vm
mipsvm = Mips of VM
bandwidthvm = Bandwidth of VM

• Get the VMs created List from broker.

getVmsCreatedList();
int vsize=getVmsCreatedList().size();

• Let “vm” be the VM object

Vm vm;

• double[] exec=new double[vsize];

• Let “cloudlet1” be the single task want to allocate to a VM.

**Get the cloudlet’s total length and input size.**
long length=cloudlet1.getCloudletLength(); // total length
long insize=cloudlet1.getCloudletFileSize(); // input size
**Convert the long values into double for calculation**
Long l1=length;
double tlength=l1.doubleValue();
Long l2=insize;
double input= l2.doubleValue();

• Using ETTVM calculate the expected execution time of each VM.

for(int i=0;i<vsize;i++);
{
vm =getVmsCreatedList().get(i);
double mip=vm.getMips();
int pcount=vm.getNumberOfPes();
long band=vm.getBw();
**Convert the int, long values into double values**
Integer x=new Integer(pcount);
double pecount=x.doubleValue(); //int to double conversion
Long b=band;
double bw=b.doubleValue(); // long to double conversion
exec[i]=(tlength/pecount*mip)+(input/bw);
}