--- old/src/jdk.jfr/share/conf/jfr/profile.jfc	2020-02-07 13:11:52.000000000 +0800
+++ new/src/jdk.jfr/share/conf/jfr/profile.jfc	2020-02-07 13:11:52.000000000 +0800
@@ -708,6 +708,10 @@
       <setting name="stackTrace">true</setting>
     </event>
 
+    <event name="jdk.DirectMemoryStatistics">
+      <setting name="enabled">true</setting>
+      <setting name="period">1000 ms</setting>
+    </event>