using siteoptimizer(pack200)
diff --git a/org.eclipse.mat.releng/build.xml b/org.eclipse.mat.releng/build.xml
index 3fb6801..e00b3b5 100644
--- a/org.eclipse.mat.releng/build.xml
+++ b/org.eclipse.mat.releng/build.xml
@@ -159,6 +159,27 @@
 				<exclude name="*test*" />

 			</fileset>

 		</unzip>

+		

+		<!-- optimizing site -->

+		<java classname="org.eclipse.equinox.launcher.Main" fork="true" failonerror="true" dir="${buildDirectory}">

+			<jvmarg value="-Xmx256m" />

+			<classpath>

+				<pathelement location="${eclipseLocation}/plugins/org.eclipse.equinox.launcher_${equinoxLauncherPluginVersion}.jar" />

+			</classpath>

+			

+		    <arg value="-application" /> 

+			<arg value="org.eclipse.update.core.siteOptimizer" />

+			

+		    <arg value="-jarProcessor" />

+			        

+			<arg value="-verbose" />

+			<arg value="-processAll" />

+			<arg value="-pack" />

+			<arg value="-outputDir" />

+			<arg value="${siteDirectory}" />

+			

+		    <arg value="${siteDirectory}" /> 

+		</java>

 

 		<!-- generate p2 meta data -->

 		<java classname="org.eclipse.equinox.launcher.Main" fork="true" failonerror="true">

diff --git a/org.eclipse.mat.releng/site/site.xml b/org.eclipse.mat.releng/site/site.xml
index 8d8659b..39d977a 100644
--- a/org.eclipse.mat.releng/site/site.xml
+++ b/org.eclipse.mat.releng/site/site.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>

-<site>

+<site pack200="true">

    <feature url="features/org.eclipse.mat.chart.feature_0.7.0.@qualifier@.jar" id="org.eclipse.mat.chart.feature" version="0.7.0.@qualifier@">

       <category name="Memory Analyzer Incubation"/>

    </feature>