diff a/run-helloworld.sh b/run-helloworld.sh
--- /dev/null
+++ b/run-helloworld.sh
@@ -0,0 +1,75 @@
+#!/bin/bash
+
+# Run with e.g. ./run-helloworld.sh
+
+set -euo pipefail
+
+# Look around for release JDK image
+J_HP=
+if [ -d build/linux-x86_64-server-release/images/jdk/ ]; then
+  J_HP=build/linux-x86_64-server-release/images/jdk/bin/java
+elif [ -d build/linux-aarch64-server-release/images/jdk/ ]; then
+  J_HP=build/linux-aarch64-server-release/images/jdk/bin/java
+else
+  echo "Cannot find JDK"
+  exit 1
+fi
+
+J_ML=
+if [ -d jdk-mainline/ ]; then
+  J_ML=jdk-mainline/bin/java
+fi
+
+OPTS="-XX:+UseShenandoahGC -Xmx8g -Xms8g -XX:+AlwaysPreTouch -XX:+UseTransparentHugePages -XX:-TieredCompilation -XX:+UnlockDiagnosticVMOptions -XX:ShenandoahGCMode=passive -XX:+UnlockExperimentalVMOptions"
+
+OPTS_ALL="$OPTS -XX:+ShenandoahLoadRefBarrier -XX:+ShenandoahSATBBarrier -XX:+ShenandoahCASBarrier -XX:+ShenandoahCloneBarrier"
+
+echo
+echo ------
+echo Hello World footprint:
+
+cat > Hello.java <<EOF
+public class Hello {
+  public static void main(String... args) {
+     System.out.println("Hello World");
+  }
+}
+EOF
+
+run_with() {
+  P=$*
+  for I in `seq 1 3`; do
+    echo -n " run $I: "
+    $P -Xcomp -XX:+CITime Hello.java 2>&1 | grep "Tier4"
+  done
+}
+
+echo
+echo ------
+echo $*
+
+if [ "x" != "x$J_ML" ]; then
+  echo
+  echo "Mainline: Concurrent"
+  run_with $J_ML $OPTS
+
+  echo
+  echo "Mainline: Passive, No barriers"
+  run_with $J_ML $OPTS_PASSIVE_NONE
+
+  echo
+  echo "Mainline: Passive, All barriers"
+  run_with $J_ML $OPTS_PASSIVE_ALL
+fi
+
+echo
+echo "HP: Concurrent"
+run_with $J_HP $OPTS
+
+echo
+echo "HP: Passive, No barriers"
+run_with $J_HP $OPTS_PASSIVE_NONE
+
+echo
+echo "HP: Passive, All barriers"
+run_with $J_HP $OPTS_PASSIVE_ALL