--- old/src/hotspot/share/runtime/synchronizer.cpp	2018-09-17 23:28:19.139748165 -0700
+++ new/src/hotspot/share/runtime/synchronizer.cpp	2018-09-17 23:28:18.883748174 -0700
@@ -1050,22 +1050,11 @@
   // TODO: assert thread state is reasonable
 
   if (ForceMonitorScavenge == 0 && Atomic::xchg (1, &ForceMonitorScavenge) == 0) {
-    if (ObjectMonitor::Knob_Verbose) {
-      tty->print_cr("INFO: Monitor scavenge - Induced STW @%s (%d)",
-                    Whence, ForceMonitorScavenge) ;
-      tty->flush();
-    }
     // Induce a 'null' safepoint to scavenge monitors
     // Must VM_Operation instance be heap allocated as the op will be enqueue and posted
     // to the VMthread and have a lifespan longer than that of this activation record.
     // The VMThread will delete the op when completed.
     VMThread::execute(new VM_ScavengeMonitors());
-
-    if (ObjectMonitor::Knob_Verbose) {
-      tty->print_cr("INFO: Monitor scavenge - STW posted @%s (%d)",
-                    Whence, ForceMonitorScavenge) ;
-      tty->flush();
-    }
   }
 }
 
@@ -1763,14 +1752,6 @@
 
   // Consider: audit gFreeList to ensure that gMonitorFreeCount and list agree.
 
-  if (ObjectMonitor::Knob_Verbose) {
-    tty->print_cr("INFO: Deflate: InCirc=%d InUse=%d Scavenged=%d "
-                  "ForceMonitorScavenge=%d : pop=%d free=%d",
-                  counters->nInCirculation, counters->nInuse, counters->nScavenged, ForceMonitorScavenge,
-                  gMonitorPopulation, gMonitorFreeCount);
-    tty->flush();
-  }
-
   ForceMonitorScavenge = 0;    // Reset
 
   OM_PERFDATA_OP(Deflations, inc(counters->nScavenged));