--- old/src/hotspot/share/jfr/metadata/metadata.xml	2020-02-26 11:26:17.535970000 +0100
+++ new/src/hotspot/share/jfr/metadata/metadata.xml	2020-02-26 11:26:16.425449100 +0100
@@ -274,6 +274,9 @@
     <Field type="Tickspan" name="longestPause" label="Longest Pause" description="Longest individual pause during the garbage collection" />
   </Event>
 
+  <Event name="SystemGC" category="Java Virtual Machine, GC, Collector" label="System GC" stackTrace="true" startTime="false" thread="true">
+  </Event>
+
   <Event name="ParallelOldGarbageCollection" category="Java Virtual Machine, GC, Collector" label="Parallel Old Garbage Collection"
     description="Extra information specific to Parallel Old Garbage Collections">
     <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" />
--- old/src/hotspot/share/prims/jvm.cpp	2020-02-26 11:26:24.760501800 +0100
+++ new/src/hotspot/share/prims/jvm.cpp	2020-02-26 11:26:23.541198500 +0100
@@ -486,6 +486,8 @@
 JVM_ENTRY_NO_ENV(void, JVM_GC(void))
   JVMWrapper("JVM_GC");
   if (!DisableExplicitGC) {
+    EventSystemGC event;
+    event.commit();
     Universe::heap()->collect(GCCause::_java_lang_system_gc);
   }
 JVM_END
--- old/src/jdk.jfr/share/conf/jfr/default.jfc	2020-02-26 11:26:31.905488100 +0100
+++ new/src/jdk.jfr/share/conf/jfr/default.jfc	2020-02-26 11:26:30.791874900 +0100
@@ -341,6 +341,11 @@
       <setting name="threshold">0 ms</setting>
     </event>
 
+    <event name="jdk.SystemGC">
+      <setting name="enabled">true</setting>
+      <setting name="stackTrace">true</setting>
+    </event>
+
     <event name="jdk.ParallelOldGarbageCollection">
       <setting name="enabled" control="gc-enabled-normal">true</setting>
       <setting name="threshold">0 ms</setting>
--- old/src/jdk.jfr/share/conf/jfr/profile.jfc	2020-02-26 11:26:38.915622200 +0100
+++ new/src/jdk.jfr/share/conf/jfr/profile.jfc	2020-02-26 11:26:37.806285100 +0100
@@ -340,6 +340,11 @@
       <setting name="enabled" control="gc-enabled-normal">true</setting>
       <setting name="threshold">0 ms</setting>
     </event>
+	
+    <event name="jdk.SystemGC">
+      <setting name="enabled">true</setting>
+      <setting name="stackTrace">true</setting>
+    </event>
 
     <event name="jdk.ParallelOldGarbageCollection">
       <setting name="enabled" control="gc-enabled-normal">true</setting>
--- old/test/lib/jdk/test/lib/jfr/EventNames.java	2020-02-26 11:26:45.816006600 +0100
+++ new/test/lib/jdk/test/lib/jfr/EventNames.java	2020-02-26 11:26:44.646675600 +0100
@@ -141,6 +141,7 @@
     public final static String AllocationRequiringGC = PREFIX + "AllocationRequiringGC";
     public final static String GCPhaseParallel = PREFIX + "GCPhaseParallel";
     public final static String GCPhaseConcurrent = PREFIX + "GCPhaseConcurrent";
+    public static final String SystemGC = PREFIX + "SystemGC";
 
     // Compiler
     public final static String Compilation = PREFIX + "Compilation";
--- /dev/null	2020-02-26 11:26:53.000000000 +0100
+++ new/test/jdk/jdk/jfr/event/gc/collection/TestSystemGc.java	2020-02-26 11:26:51.426623000 +0100
@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package jdk.jfr.event.gc.collection;
+
+import java.lang.management.ManagementFactory;
+import java.util.List;
+
+import jdk.jfr.Recording;
+import jdk.jfr.consumer.RecordedEvent;
+import jdk.test.lib.Asserts;
+import jdk.test.lib.jfr.EventNames;
+import jdk.test.lib.jfr.Events;
+
+/**
+ * @test
+ * @key jfr
+ * @requires vm.hasJFR
+ * @library /test/lib /test/jdk
+ * @run main/othervm jdk.jfr.event.gc.collection.TestSystemGC
+ */
+public class TestSystemGC {
+    public static void main(String[] args) throws Exception {
+        try (Recording recording = new Recording()) {
+            recording.enable(EventNames.SystemGC);
+            recording.start();
+
+            // Trigger 3 System GC
+            System.gc();
+            ManagementFactory.getMemoryMXBean().gc();
+            Runtime.getRuntime().gc();
+
+            recording.stop();
+            List<RecordedEvent> events = Events.fromRecording(recording);
+            System.out.println(events);
+
+            Asserts.assertEquals(3, events.size(), "Expected 3 SystemGC events");
+
+            RecordedEvent event1 = events.get(0);
+            Events.assertFrame(event1, System.class, "gc");
+            Events.assertEventThread(event1, Thread.currentThread());
+
+            RecordedEvent event2 = events.get(1);
+            Events.assertFrame(event2, Runtime.class, "gc");
+            Events.assertEventThread(event2, Thread.currentThread());
+
+            RecordedEvent event3 = events.get(2);
+            // MemoryMXBean.class is an interface so can't assertFrame on it
+            Events.assertEventThread(event3, Thread.currentThread());
+        }
+     }
+}