add JVM option

frameworks/Scala/akka-http/setup.sh

@@ -5,4 +5,4 @@ export SBT_HOME=${IROOT}/sbt
 
 ${SBT_HOME}/bin/sbt 'assembly'
 
-java -jar target/scala-2.11/akka-http-benchmark.jar
+java -server -jar target/scala-2.11/akka-http-benchmark.jar