Reduce maximum heap size for Maven Surefire plugin to improve test performance

Author: psainics

pom.xml

@@ -262,7 +262,7 @@
         <artifactId>maven-surefire-plugin</artifactId>
         <version>2.14.1</version>
         <configuration>
-          <argLine>-Xmx5000m -Djava.awt.headless=true -XX:MaxPermSize=1024m -XX:+UseConcMarkSweepGC -XX:OnOutOfMemoryError="kill -9 %p" -Djava.net.preferIPv4Stack=true</argLine>
+          <argLine>-Xmx2048m -Djava.awt.headless=true -XX:+UseConcMarkSweepGC -XX:OnOutOfMemoryError="kill -9 %p" -Djava.net.preferIPv4Stack=true</argLine>
           <reuseForks>false</reuseForks>
           <reportFormat>plain</reportFormat>
           <systemPropertyVariables>