From 439d63e0d0556677d9d8ae5b08283386ba9edc8c Mon Sep 17 00:00:00 2001
From: Sabir Mohammedi Taieb <52837091+Sabir97@users.noreply.github.com>
Date: Wed, 4 Mar 2020 12:49:26 +0100
Subject: [PATCH 1/3] Migration Time and Migration Energy

Added new methods to get the migration time and migration energy from the simulation
---
 .../cloudsim/power/PowerDatacenter.java       | 32 +++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/modules/cloudsim/src/main/java/org/cloudbus/cloudsim/power/PowerDatacenter.java b/modules/cloudsim/src/main/java/org/cloudbus/cloudsim/power/PowerDatacenter.java
index 5462077de..e4c03fc33 100644
--- a/modules/cloudsim/src/main/java/org/cloudbus/cloudsim/power/PowerDatacenter.java
+++ b/modules/cloudsim/src/main/java/org/cloudbus/cloudsim/power/PowerDatacenter.java
@@ -51,6 +51,12 @@ public class PowerDatacenter extends Datacenter {
 
 	/** The VM migration count. */
 	private int migrationCount;
+	
+	      // Migration Time
+        public double Tmigr = 0;
+        
+        // Migration Energy
+        public double Emigr;
 
 	/**
 	 * Instantiates a new PowerDatacenter.
@@ -100,6 +106,13 @@ protected void updateCloudletProcessing() {
 						Vm vm = (Vm) migrate.get("vm");
 						PowerHost targetHost = (PowerHost) migrate.get("host");
 						PowerHost oldHost = (PowerHost) vm.getHost();
+						
+						// Calculates migration time and energy
+                                                double Cj = vm.getRam();
+                                                double BWj = vm.getBw();
+                                                Tmigr = Tmigr + Cj/BWj;
+                                                sum = sum + Pm*(Cj/BWj);
+                                                Emigr = 4*sum;
 
 						if (oldHost == null) {
 							Log.formatLine(
@@ -140,6 +153,8 @@ protected void updateCloudletProcessing() {
 
 			setLastProcessTime(currentTime);
 		}
+		    setMigrationTime(Tmigr); // Update Total Migration Time
+                setMigrationEnergy(Emigr); // Update Total Migration Energy
 	}
 
 	/**
@@ -355,5 +370,22 @@ protected void setMigrationCount(int migrationCount) {
 	protected void incrementMigrationCount() {
 		setMigrationCount(getMigrationCount() + 1);
 	}
+	
+	     // sets migration time
+     public void setMigrationTime(double Tm){
+         Tmigr = Tm;
+     }
+     //gets migration time
+     public double getMigrationTime(){
+         return Tmigr;
+     }
+     //sets migration Energy
+     public void setMigrationEnergy(double Em){
+         Emigr = Em;
+     }
+     //gets total migration energy
+     public double getMigrationEnergy(){
+         return Emigr;
+     }
 
 }

From 085310b174040b87c57083a2f3a7373faa8a207c Mon Sep 17 00:00:00 2001
From: Sabir Mohammedi Taieb <52837091+Sabir97@users.noreply.github.com>
Date: Wed, 4 Mar 2020 13:05:49 +0100
Subject: [PATCH 2/3] Update PowerDatacenter.java

---
 .../main/java/org/cloudbus/cloudsim/power/PowerDatacenter.java  | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/modules/cloudsim/src/main/java/org/cloudbus/cloudsim/power/PowerDatacenter.java b/modules/cloudsim/src/main/java/org/cloudbus/cloudsim/power/PowerDatacenter.java
index e4c03fc33..120e9317f 100644
--- a/modules/cloudsim/src/main/java/org/cloudbus/cloudsim/power/PowerDatacenter.java
+++ b/modules/cloudsim/src/main/java/org/cloudbus/cloudsim/power/PowerDatacenter.java
@@ -90,6 +90,8 @@ protected void updateCloudletProcessing() {
 			return;
 		}
 		double currentTime = CloudSim.clock();
+		double Pm = 4.5; // Unit of energy communication between Vms
+                double sum = 0;
 
 		// if some time passed since last processing
 		if (currentTime > getLastProcessTime()) {

From 22b0e3c3ef20632b8bc10dca1cc1b1c735d48a55 Mon Sep 17 00:00:00 2001
From: Sabir Mohammedi Taieb <52837091+Sabir97@users.noreply.github.com>
Date: Wed, 4 Mar 2020 13:07:15 +0100
Subject: [PATCH 3/3] Update PowerDatacenter.java

---
 .../main/java/org/cloudbus/cloudsim/power/PowerDatacenter.java  | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/modules/cloudsim/src/main/java/org/cloudbus/cloudsim/power/PowerDatacenter.java b/modules/cloudsim/src/main/java/org/cloudbus/cloudsim/power/PowerDatacenter.java
index 120e9317f..94349ac86 100644
--- a/modules/cloudsim/src/main/java/org/cloudbus/cloudsim/power/PowerDatacenter.java
+++ b/modules/cloudsim/src/main/java/org/cloudbus/cloudsim/power/PowerDatacenter.java
@@ -90,7 +90,7 @@ protected void updateCloudletProcessing() {
 			return;
 		}
 		double currentTime = CloudSim.clock();
-		double Pm = 4.5; // Unit of energy communication between Vms
+		double Pm = 4.5; // VMs communication energy unit
                 double sum = 0;
 
 		// if some time passed since last processing