diff -r 94f71d633542 -r 4eebb9aadbe3 src/hotspot/share/runtime/vmThread.cpp
--- a/src/hotspot/share/runtime/vmThread.cpp	Thu Sep 19 00:19:18 2019 -0700
+++ b/src/hotspot/share/runtime/vmThread.cpp	Thu Sep 19 09:50:11 2019 +0200
@@ -556,6 +556,7 @@
           _cur_vm_operation = safepoint_ops;
           if (_cur_vm_operation != NULL) {
             do {
+              EventMark em("Executing coalesced safepoint VM operation: %s", _cur_vm_operation->name());
               log_debug(vmthread)("Evaluating coalesced safepoint VM operation: %s", _cur_vm_operation->name());
               // evaluate_operation deletes the op object so we have
               // to grab the next op now